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Tag: Environmental Science

  • Current Antarctic conservation efforts are insufficient to avoid biodiversity declines

    Current Antarctic conservation efforts are insufficient to avoid biodiversity declines

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    Newswise — Existing conservation efforts are insufficient to protect Antarctic ecosystems, and population declines are likely for 65% of the continent’s plants and wildlife by the year 2100, according to a study by Jasmine Rachael Lee at the University of Queensland, Australia, and colleagues, publishing December 22nd in the open access journal PLOS Biology. Implementing ten key threat management strategies — at an annual cost of 23 million US dollars — would benefit up to 84% of terrestrial bird, mammal, and plant groups.

    To better understand which species are most vulnerable and identify the most cost-effective actions, researchers combined expert assessments with scientific data to evaluate threats and conservation strategies for Antarctica. They asked 29 experts to define possible management strategies, estimate their cost and feasibility, and assess the potential benefit to different species between now and 2100.

    Climate change was identified as the most serious threat to Antarctic biodiversity and influencing global policy to limit warming was the most beneficial conservation strategy. Under current management strategies and more than 2 degrees Celsius of warming, 65% of land plants and animals will decline by 2100. Emperor penguins (Aptenodytes forsteri) were identified as the most vulnerable, followed by other sea birds and soil nematode worms. However, regional management strategies could benefit up to 74% of plants and animals at an estimated cost of 1.92 billion US dollars over the next 83 years, equating to 0.004% of global GDP in 2019. The regional management strategies identified as offering the greatest return on investment were minimizing the impacts of human activities, improving the planning and management of new infrastructure projects, and improving transport management.

    As Antarctica faces increasing pressure from climate change and human activities, a combination of regional and global conservation efforts is needed to preserve Antarctic biodiversity and ecosystem services for future generations, the authors say.

    Lee adds, “What this work shows is that climate change is the greatest threat to Antarctic species and what we need is global mitigation efforts to save them. This will not only help to secure their future, but also our own.”

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    In your coverage, please use this URL to provide access to the freely available paper in PLOS Biology: http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.3001921  

    Press-only preview: https://plos.io/3FdShYY

    Citation: Lee JR, Terauds A, Carwardine J, Shaw JD, Fuller RA, Possingham HP, et al. (2022) Threat management priorities for conserving Antarctic biodiversity. PLoS Biol 20(12): e3001921. https://doi.org/10.1371/journal.pbio.3001921

    Author Countries: Australia, United Kingdom, United States, South Africa, New Zealand, France, Denmark, Norway, Switzerland, Belgium

    Funding: see manuscript

    Competing interests: The authors have declared that no competing interests exist.

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  • Shedding light on the origin of complex life forms

    Shedding light on the origin of complex life forms

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    How did the complex organisms on Earth arise? This is one of the big open questions in biology. A collaboration between the working groups of Christa Schleper at the University of Vienna and Martin Pilhofer at ETH Zurich has come a step closer to the answer. The researchers succeeded in cultivating a special archaeon and characterizing it more precisely using microscopic methods. This member of the Asgard archaea exhibits unique cellular characteristics and may represent an evolutionary “missing link” to more complex life forms such as animals and plants. The study was recently published in the journal “Nature”.

    All life forms on earth are divided into three major domains: eukaryotes, bacteria and archaea. Eukaryotes include the groups of animals, plants and fungi. Their cells are usually much larger and, at first glance, more complex than the cells of bacteria and archaea. The genetic material of eukaryotes, for example, is packaged in a cell nucleus and the cells also have a large number of other compartments. Cell shape and transport within the eukaryotic cell are also based on an extensive cytoskeleton. But how did the evolutionary leap to such complex eukaryotic cells come about? Most current models assume that archaea and bacteria played a central role in the evolution of eukaryotes. A eukaryotic primordial cell is believed to have evolved from a close symbiosis between archaea and bacteria about two billion years ago. In 2015, genomic studies of deep-sea environmental samples discovered the group of the so-called “Asgard archaea”, which in the tree of life represent the closest relatives of eukaryotes. The first images of Asgard cells were published in 2020 from enrichment cultures by a Japanese group.

    Asgard archaea cultivated from marine sediments

    Christa Schleper’s working group at the University of Vienna has now succeeded for the first time in cultivating a representative of this group in higher concentrations. It comes from marine sediments on the coast of Piran, Slovenia, but is also an inhabitant of Vienna, for example in the bank sediments of the Danube. Because of its growth to high cell densities, this representative can be studied particularly well. “It was very tricky and laborious to obtain this extremely sensitive organism in a stable culture in the laboratory,” reports Thiago Rodrigues-Oliveira, postdoc in the Archaea working group at the University of Vienna and one of the first authors of the study.

    Asgard archaea have a complex cell shape with an extensive cytoskeleton

    The remarkable success of the Viennese group to cultivate a highly enriched Asgard representative finally allowed a more detailed examination of the cells by microscopy. The ETH researchers in Martin Pilhofer’s group used a modern cryo-electron microscope to take pictures of shock-frozen cells. “This method enables a three-dimensional insight into the internal cellular structures,” explains Pilhofer. “The cells consist of round cell bodies with thin, sometimes very long cell extensions. These tentacle-like structures sometimes even seem to connect different cell bodies with each other,” says Florian Wollweber, who spent months tracking down the cells under the microscope. The cells also contain an extensive network of actin filaments thought to be unique to eukaryotic cells. This suggests that extensive cytoskeletal structures arose in archaea before the appearance of the first eukaryotes and fuels evolutionary theories around this important and spectacular event in the history of life.

    Future insights through the new model organism

    “Our new organism, called ‘Lokiarchaeum ossiferum’, has great potential to provide further groundbreaking insights into the early evolution of eukaryotes,” comments microbiologist Christa Schleper. “It has taken six long years to obtain a stable and highly enriched culture, but now we can use this experience to perform many biochemical studies and to cultivate other Asgard archaea as well.” In addition, the scientists can now use the new imaging methods developed at ETH to investigate, for example, the close interactions between Asgard archaea and their bacterial partners. Basic cell biological processes such as cell division can also be studied in the future in order to shed light on the evolutionary origin of these mechanisms in eukaryotes.

    This text was published in a similar form by ETH Zurich.

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  • Study reveals the true value of elephants

    Study reveals the true value of elephants

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    Newswise — New research examining the services and benefits of elephants has revealed many values are often overlooked when deciding how they should be protected.

    The collaboration between universities in England and South Africa, including the University of Portsmouth, found conservation strategies often have a narrow focus and tend to prioritise certain values of nature, such as economic or ecological, over moral ones. 

    When looking specifically at elephants, the study found financial benefits including ecotourism, trophy hunting and as a source of ivory or labour, often conflicts with the animal’s ecological, cultural and spiritual contributions.

    The authors argue not fully understanding or considering the value systems of all stakeholders involved in conservation, including local people, leads to social inequality, conflict and unsustainable strategies. 

    Study co-author Antoinette van de Water, from the University of KwaZulu-Natal in South Africa, said: “We chose to look at elephants as the case study because their conservation can be especially challenging and contentious. 

    “We’re not saying economic contributions aren’t important, but there’s a lot of different values at play and they all need to be considered in conservation strategies if they are going to succeed.”

    The study also highlights conservation decision makers tend to take a single worldview when considering the value of nature. 

    Co-author Dr Lucy Bates, from the University of Portsmouth, explained: “Whether it’s economic, ecological, or social, a blanket approach to values can impact the success of a conservation strategy.

    “Consider something like the ivory trade for example. International trade in ivory is illegal, but many southern African countries want to restart the trade leading to contention across the African continent. If you focus less on the potential economic value of ivory, and turn to other ways elephants can support communities, it can be a game-changer.

    “On a smaller scale, you can also apply this framework to defining protected areas and what land could be made available to elephants. By listening to those living in these areas, you can get a clear understanding of how decisions will affect human life as well, and work out ways to resolve any issues.”

    The paper, published in Ecosystems Services, says nature’s non-material benefits include recreation, inspiration, mental health, and social cohesion. 

    But it points out broader moral values, such as human rights, environmental justice, rights of nature and intergenerational legacy, also have a big part to play in the success of conservation.

    The study recommends incorporating moral values related to biodiversity conservation into the valuation framework to create a positive loop between benefits to humans and to nature. 

    The researchers believe that this approach will help policymakers and managers have a better understanding of what elephants mean to people, why elephants are important in themselves, and what values and interests are at stake. It can also be applied to other species and ecosystems. 

    “What is really needed is a change of thinking”, added Antoinette van de Water. 

    “Conservation policies are often based on price tags. Our pluralist valuation system provides solutions that are not based on economic gains or political status for the few, but instead on long-term common good and the goals and aspirations of societies.”

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  • American University Experts Look Ahead to 2023

    American University Experts Look Ahead to 2023

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    What: Uncertainty in the economy and a possible global recession, the quest for normalcy after the COVID-19 pandemic; the continued war in Ukraine; record numbers of migrants surging across the U.S.-Mexican border… As 2022 concludes, American University experts share their insights on this year’s headlines and their outlook for 2023.

    When: Tuesday, December 20, 2022 – ongoing

    Background:  American University experts who are available for interviews include those listed below as well as some who have provided insights.

     

    U.S. Politics & Elections

    David Barker is the Director of the Center for Congressional and Presidential Studies at American University’s School of Public Affairs. He is a nationally recognized expert on a broad range of topics, including American political parties, campaigns and elections, representation, culture and polarization, ideology and attitudes, information and communication, political institutions. His latest book is The Politics of Truth in Polarized America.

    Prof. Barker said: “Both at home and abroad, after several years of democratic backsliding, 2022 offered some modestly encouraging signs regarding democracy’s resilience and its prospects for renewal.  However, we cannot allow ourselves to become complacent.  Freedom is always precarious; it must be vigilantly protected and persistently pursued.”

    Amy Dacey is Executive Director of the Sine Institute of Policy & Policy at American University. For more than two decades, she managed prominent national organizations, advised leading elected officials and candidates, including President Barack Obama and Senator John Kerry, and counseled a variety of nonprofits and companies. During the 2016 presidential election, she served as the Chief Executive Officer of the Democratic National Committee.

    Amy Dacey said: “The midterms showed yet again that while all issues matter, certain issues motivate voters. The passion we saw from voters — and particularly young voters – about access to abortion, may have been what prevented the ‘red wave’ that so many observers predicted. But while campaigns are about contrasts, governing is about consensus. That won’t be easy in this age of extremism and political polarization. The number one task for 2023 is to keep our democracy intact and functional.”

    Dean Sam Fulwood, III of American University’s School of Communication is a prominent journalist, public policy analyst and author, whose work addresses key issues of media influences on American life. In addition to his work at SOC, Fulwood is a nonresident senior fellow at the Center for American Progress, where he was a senior fellow and vice president for race and equity programming.

    Dean Fulwood said: “Every sector of U.S. society remains in recovery mode from the aftershocks of the COVID pandemic. While most Americans are fatigued by the lingering restrictions the pandemic imposed, it’s perhaps a bit overly optimistic to expect that 2023 will bring an immediate return to past normalcy. In fact, the U.S. – and the world – are creating pathways to a new normal. This will continue well into the New Year.

    I think this emerging new normal will be evident both in our national and local politics and will be revealed primarily in our various media modes. 2023 will not be an election year for most Americans, but politics will continue to be front and center as presidential aspirants jockey for positioning to run in 2024. Campaigns are likely to be particularly contentious among GOP hopefuls as they navigate internal struggles and come to grips with the legacy of the Trump/MAGA hold over much of the party.”

     

    Economy & Finance

    Valentina Bruno is a professor of finance in the Kogod School of Business where she studies topics at the intersection of macroeconomics and finance and opened new lines of inquiry into how global financial markets interact with the real economy. Before joining American University, she worked at the World Bank in the Financial Sector Strategy and Policy Group and in the International Finance Team.

    Prof. Bruno said: “Many indicators point to a global recession coming in 2023. And yet, in the past recent weeks financial conditions have loosened, stocks have rallied, and mortgage rates have fallen from their recent peaks. The US dollar has reaffirmed its dominant role, and data shows that 88% of all foreign exchange transactions have the dollar on one side. And yet, emerging markets have been quite resilient so far. Consumer demand and a tight labor market have partially undone the actions of the Fed. As Chairman Powell said recently, we have a long way to go to get back to price stability. However, once inflation is under control, we will see the light at the end of the tunnel. A soft landing is still possible.”

    Jeffrey Harris is the Gary D. Cohn Goldman Sachs Chair in Finance at the Kogod School of Business. He has an extensive background in market microstructure and regulatory issues. Dr. Harris recently served as Chief Economist and Division Director for the Division of Economic and Risk Analysis at the U.S. Securities and Exchange Commission.

    Prof. Harris said: “With higher rates in store, I expect variable rate mortgages to pinch consumer spending along with dismal house prices. These higher rates will likely tame inflation but will pinch the economy.  Most businesses will persevere, but the housing and financial sectors will slow. The uncertainty in Ukraine will continue to keep energy prices high, but this bodes well for the energy and defense sectors. I expect GDP growth south of 2% but a continuing strong job market as more boomers retire.”

    Dean David Marchick leads the Kogod School of Business to support more than 2,000 students and offer more than two dozen undergraduate, graduate degree, and certification programs. He previously was a managing director at the Carlyle Group and served as Chief Operating Officer of the US Development Finance Corporation during the first year of the Biden Administration, and also served in Clinton administration in various roles.

    Dean Marchick said: “The biggest uncertainty for the global economy is not based on what happens at the Federal Reserve but rather what happens with COVID in China. This month, in the wake of protests in China, Chinese authorities lifted the drastic COVID restrictions across the country.  Now the question is whether China will be shut down not based on policy, but disease. More than 600 million PRC nationals remain unvaccinated or unboosted weeks before the Lunar new year, when more than 300 million PRC nationals travel to see family and friends. Not only could we see a humanitarian crisis worse than the peaks in India, New York or Italy, but the crisis could further stress supply chains, exacerbate political instability and slow China’s economy. Since China accounts for almost 20% of global GDP, the level of China’s growth, or lack thereof, has global implications.  At 4.4% growth in 2023, China is projected to contribute 30% of aggregate global growth next year. But if China’s growth rate falls to zero, global GDP could drop by more than 1%.  Thus, the US and other countries have a deep interest in helping China avoid a humanitarian disaster, but also a self-interest in seeing China grow.”

     

    Extremism & Polarization

    Carolyn Gallaher is an expert on extremism and the right-wing, organized violence by non-state actors and urban politics, including the politics, internal dynamics, and patterns of violence of militias, paramilitaries, and private military contractors, among others. Gallaher is the author of On the Fault Line: Race, Class, and the American Patriot Movement.

    Prof. Gallaher said: “This year, the January 6th Committee revealed how President Donald Trump inspired a failed insurrection that almost toppled 245 years of American democracy. Much of 2022 was spent on holding insurrectionists and other participants to account. The Department of Justice has arrested more than 900 people who participated in the assault and recently successfully prosecuted several members of the violent Oathkeepers militia, including two for seditious conspiracy. As 2023 begins, Trump’s star may be growing dimmer, but right-wing conspiracy theories, online disinformation, and a distressing lack of trust in the basic institutions of democracy continue apace. In particular, it will be important to see whether the Republican Party will reject those within its ranks who have embrace election disinformation and spread false claims about the so-called ‘deep state.’  The fate of the party, and American democracy may hinge on whether the party embraces or rejects right wing extremists within its ranks.”  

    Brian Hughes is the Co-Founder and Associate Director of the Polarization and Extremism Research and Innovation Lab (PERIL), where he develops studies and interventions to reduce the risk of radicalization to extremism. His scholarly research explores the impact of communication technology on political and religious extremism, terrorism, and fringe culture.

    Prof. Hughes said: “This year saw a troubling continuation of ongoing trends in the radicalization of mainstream American politics. Anti-LGBTQ violence and antisemitism in particular were on the rise, while racism, male supremacy, and other forms of extremism have not abated. Unfortunately, these trends are spurred on and exploited for profit and power by a large cohort of media and political figures. It is all the more crucial that in 2023 we continue our work inoculating the public against their divisive, hateful, and manipulative rhetoric.”

    Janice Iwama is an assistant professor in AU’s School of Public Affairs. Her research focuses on examining local conditions and social processes that influence hate crimes, gun violence, racial profiling, and the victimization of immigrants. Iwama has served as a co-principal investigator and lead researcher in projects funded by the Department of Justice Civil Rights Unit and the National Institute of Justice. Prof. Iwama said: “Following the recent spike in hate crimes, I expect federal and state legislators to introduce new legislation in 2023 that will actively seek to improve our data collection on hate crimes, develop better preventative measures against bias incidents, and improve law enforcement responses to hate crimes.”

    Pamela Nadell is director of AU’s Jewish Studies Program and an award-winning historian and expert on the history of antisemitism in America and around the world. Nadell can provide commentary on current trends and problems of antisemitism.  

     

    Foreign Policy – War in Ukraine, Refugees & Immigration

    Ernesto Castañeda is Associate Professor of Sociology at American University and the Director of the Immigration Lab. He is an expert on international migration, borders, social movements, and ethnic and racial inequality. He is currently working on research projects about health disparities, Central American migration, and Afghan refugee integration.

    Garret Martin is the co-director of the Transatlantic Policy Center and Senior Professorial Lecturer at the School of International Service.  He has written widely on transatlantic relations and Europe, security, U.S. foreign policy, NATO, European politics, and European foreign policy and defense.

    Jordan Tama is an associate professor in the School of International Service, he specializes in U.S. foreign and national security policy, foreign policy bipartisanship, presidential-congressional relations, national security strategic planning, the politics of economic sanctions, the foreign policy views of U.S. elites, and the value of independent commissions. He is currently working on a book Bipartisanship in a Polarized Age: When Democrats and Republicans Cooperate on U.S. Foreign Policy.

    Joseph Torigian, assistant professor at the School of International Service, is an expert on politics of authoritarian regimes with a specific focus on China and Russia. His research draws upon comparative politics, international relations, security studies, and history to ask big questions about the long-term political trajectories of these two states.

    Guy Ziv is an associate professor at the School of International Service and expert in U.S. foreign policy toward the Middle East, U.S.-Israel relations, and Israeli-Palestinian peacemaking. He is the author of Why Hawks Become Doves: Shimon Peres and Foreign Policy Change in Israel.

     

    Media & Technology

    Dean Sam Fulwood, III of American University’s School of Communication.

    Dean Fulwood said: “For journalists and media observers, the runup to the 2024 presidential campaign will dominate much of the 2023 news cycles. While some stories are evergreen, journalists will continue struggle to find audiences as the new normal unfolds with changes in media delivery modes. Twitter, Facebook, Tik-Tok and other forms of social media will continue to erode advertising base for traditional, mainstream media outlets, exacerbating an ongoing trend toward declining local news and expanding news deserts in small American communities without comprehensive media presence.”

    Filippo Trevisan is an Associate Professor of Public Communication at American University’s School of Communication and Deputy Director of the Institute on Disability and Public Policy. His research explores the impact of digital technologies on advocacy, activism, and political communication.

    Prof. Trevisan said: “In a year without elections, no Olympics, and in which the pandemic seems to finally be waning, we likely need to wait until the next “crisis” to know what the media are going to focus on in 2023. The war in Ukraine is certainly going to stay at the top of the agenda and invite a fair bit of misinformation, especially if negotiations will start and each side will try its best to win the narrative “war.” A lot will also depend on what will happen to Twitter following Elon Musk’s takeover. Whether or not more companies will withdraw their advertising dollars from it, its brand is already badly damaged, which threatens to put the platform into a vicious circle. Musk’s seemingly erratic moves will continue as it’s one way to keep the company relevant in the news, but it may only be a matter of time before the news media stop reporting every one of his moves verbatim.”

    Sherri Williams is an assistant professor in the School of Communication, her interests are at intersection of social media, social justice, reality television, mass media and how people of color use and are represented by these mediums. Prof. Williams teaches journalism and focuses on how marginalized groups, especially women of color, are portrayed in the media.

    Prof. Williams said: “I hope that next year will include more national and local news coverage about how inequality is embedded into law. We are at a critical time in history where extremely conservative legislators are codifying discrimination into law. State legislation that discriminates against transgender youth, limits protests, restricts education about state and national legacies of oppression and bans abortion all essentially legalize discrimination. Journalism that explores how legislators can help close equity gaps with legislation is essential to helping Americans understand that discrimination is often legal and can be remedied with policy, like the Respect for Marriage Act that President Biden just signed. I also hope to see more reporters localize U.S. Supreme Court stories and translate the importance of the court to the public and what is on its docket.”

     

    Environment/ Sustainability 

    Paul Bledsoe is an adjunct professorial lecturer at the Center on Environmental Policy at American University’s School of Public Affairs at. He was director of communications of the White House Climate Change Task Force under President Clinton from 1998-2001, communications director of the Senate Finance Committee under Chairman Daniel Patrick Moynihan, and special assistant to former Interior Secretary Bruce Babbitt.

    Todd Eisenstadt, professor and Research Director at the Center for Environmental Policy at American University’s School of Public Affairs, is an expert on climate change policy. He recently co-authored Climate Change, Science, and the Politics of Shared Sacrifice and has written extensively on climate finance and adaptation in the developing world. 

    Jessica Gephart is a U.S. Department of State Science Envoy and Assistant Professor of Environmental Science. She focuses on the intersection of seafood globalization and environmental change, evaluating how seafood trade drives environmental impacts, and how environmental shocks disrupt seafood trade. Gephart is currently working on the development of a global seafood trade database.

     

    About American University

    American University leverages the power and purpose of scholarship, learning, and community to impact our changing world. From sustainability to social justice to the sciences, AU’s faculty, students, staff, and alumni are changemakers. Building on our 129-year history of education and research in the public interest, we say ‘Challenge Accepted’ to addressing the world’s pressing issues. Our Change Can’t Wait comprehensive campaign creates transformative educational opportunities, advances research with impact, and builds stronger communities.

     

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  • Learning from habitat ‘haves’ to help save a threatened rattlesnake

    Learning from habitat ‘haves’ to help save a threatened rattlesnake

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    Newswise — COLUMBUS, Ohio – Comparing the genetics and relocation patterns of habitat “haves” and “have-nots” among two populations of threatened rattlesnakes has produced a new way to use scientific landscape data to guide conservation planning that would give the “have-nots” a better chance of surviving.

    The study suggests that a collection of six relatively closely situated but isolated populations of Eastern massasauga rattlesnakes in northeast Ohio could grow their numbers if strategic alterations were made to stretches of land between their home ranges. The findings contributed to the successful application for federal funding of property purchases to make some of these proposed landscape changes happen.

    Reconnecting these populations could not only help restore Eastern massasaugas to unthreatened status, but establish a thriving habitat for other prey and predator species facing threats to their survival – satisfying two big-picture conservation concerns, researchers say. 

    “We aren’t just protecting massasaugas – we’re protecting everything else that’s there,” said H. Lisle Gibbs, professor of evolution, ecology and organismal biology at The Ohio State University and senior author of the study. “Even though we are focused on this species, protection of the habitat has all these collateral benefits.” 

    The research was published recently in the journal Ecological Applications. 

    Eastern massasauga rattlesnakes live in isolated spaces in midwestern and eastern North America and were listed as threatened under the Endangered Species Act in 2016 because of loss and fragmentation of their wetland habitat. 

    This study involves two known groups of Eastern massasaugas in Ohio: The Killdeer Plains Wildlife Area in north central Ohio, home to one of the most genetically diverse and largest populations in the country, numbering in the thousands, and six small, separate populations of Eastern massasaugas clustered near each other in Ashtabula County. 

    Study co-author Gregory Lipps, a field biologist at Ohio State, has studied the northeast Ohio groups for years. Federal officials once told him the populations are too small in number to be viable – but the genetics portion of this study showed that the populations had once been connected and deserve a second chance to rebuild. 

    “So now we are working on trying to reconnect them, to get them back to a viable population large enough to sustain itself even when disturbances happen that cause populations to fluctuate,” Lipps said. 

    First author Scott Martin, who completed this work as a PhD student in Gibbs’ lab, had previously sequenced genomes of 86 snakes from the six fragmented sites in northeast Ohio. For a genetic comparison in this new study, the team captured and collected blood samples from 109 snakes living together in the Killdeer Plains site. The genetic analysis, combined with where snakes were located at the time of capture, showed that the snakes living in fragmented sites in northeast Ohio were very distantly related, having stopped mingling at least three generations ago. 

    “Once we knew that they didn’t seem to be moving around, the real question is why aren’t they moving? It’s not that big of a distance – so we focused on finding out what was stopping them from being connected,” Martin said.

    Previous research had indicated how far a male Eastern massasauga snake could safely travel to find a mate and establish a family in a new location. GPS and genetic data from the Killdeer Plains and northeast Ohio population samples showed how much movement was common among related snakes in a successful group, and how uncommon relocation was among snakes living in fragmented habitats. Martin came up with the idea to combine all the data to see what was different about the landscapes in the two regions – and what could be interfering with snake relocation in the Ashtabula County groups. 

    “It seemed to be about specific features of the habitat,” Martin said. “If the snakes in northeast Ohio were moving as far as we would expect them to based on how the Killdeer snakes move and data on the species’ range, they should be able to move between these little sites. And yet when we look at the genetics and use pedigrees to see if there is any breeding between the sites, there’s just not.” 

    Using landscape maps, the researchers created models from the data that detailed the “resistance value” of various landscape features that would either help or hinder the northeast Ohio snakes’ movement to find mates. Wooded areas, cropland, and roads and housing developments – also called impervious surfaces – were found to be the main obstacles to snake relocation. Wet prairies are the ideal habitat for Eastern massasaugas. 

    “You can imagine two snakes in the same habitat that are probably likely very genetically similar because they can move easily. And then in this other region you have two snakes near each other, but on either side of a four-lane highway, and they will be genetically different because snakes don’t move across that highway, and over time they’ve diverged,” Martin said.

    “That means a highway would have a high resistance value and an open field would have a very low resistance value.” 

    These findings, and Lipps’ longtime work with northeast Ohio landowners and numerous conservation agencies, helped Ohio and Michigan collaborate on applying for and receiving a $2.3 million grant from the U.S. Fish and Wildlife Service to acquire land to benefit Eastern massasaugas in both states. 

    “To me, this is a clear example of where Ohio State basic research has produced practical results that have then been directly used to help conserve wildlife in Ohio – in other words, achieving one of the goals of a land-grant institution, which is to provide useful, practical knowledge of value to the citizens of the state,” Gibbs said.

    This research was supported by the State Wildlife Grants Program, administered jointly by the U.S. Fish and Wildlife Service and the Ohio Division of Wildlife, the Ohio Biodiversity Conservation Partnership and the National Science Foundation. 

    William Peterman, School of Environment and Natural Resources at Ohio State, was also a co-author on this study.

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  • Dynamical fractal discovered in clean magnetic crystal

    Dynamical fractal discovered in clean magnetic crystal

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    Newswise — The nature and properties of materials depend strongly on dimension. Imagine how different life in a one-dimensional or two-dimensional world would be from the three dimensions we’re commonly accustomed to. With this in mind, it is perhaps not surprising that fractals – objects with fractional dimension – have garnered significant attention since their discovery. Despite their apparent strangeness, fractals arise in surprising places – from snowflakes and lightning strikes to natural coastlines.

    Researchers at the University of Cambridge, the Max Planck Institute for the Physics of Complex Systems in Dresden, the University of Tennessee, and the Universidad Nacional de La Plata have uncovered an altogether new type of fractal appearing in a class of magnets called spin ices. The discovery was surprising because the fractals were seen in a clean three-dimensional crystal, where they conventionally would not be expected. Even more remarkably, the fractals are visible in dynamical properties of the crystal, and hidden in static ones. These features motivated the appellation of “emergent dynamical fractal”.

    The fractals were discovered in crystals of the material dysprosium titanate, where the electron spins behave like tiny bar magnets. These spins cooperate through ice rules that mimic the constraints that protons experience in water ice. For dysprosium titanate, this leads to very special properties.

    Jonathan Hallén of the University of Cambridge is a PhD student and the lead author on the study. He explains that “at temperatures just slightly above absolute zero the crystal spins form a magnetic fluid.” This is no ordinary fluid, however.

    “With tiny amounts of heat the ice rules get broken in a small number of sites and their north and south poles, making up the flipped spin, separate from each other traveling as independent magnetic monopoles.”

    The motion of these magnetic monopoles led to the discovery here. As Professor Claudio Castelnovo, also from the University of Cambridge, points out: “We knew there was something really strange going on. Results from 30 years of experiments didn’t add up.”

    Referring to a new study on the magnetic noise from the monopoles published earlier this year, Castelnovo continued, “After several failed attempts to explain the noise results, we finally had a eureka moment, realizing that the monopoles must be living in a fractal world and not moving freely in three dimensions, as had always been assumed.”

    In fact, this latest analysis of the magnetic noise showed the monopole’s world needed to look less than three-dimensional, or rather 2.53 dimensional to be precise! Professor Roderich Moessner, Director of the Max Planck Institute for the Physics of Complex Systems in Germany, and Castelnovo proposed that the quantum tunneling of the spins themselves could depend on what the neighboring spins were doing.

    As Hallén explained, “When we fed this into our models, fractals immediately emerged. The configurations of the spins were creating a network that the monopoles had to move on. The network was branching as a fractal with exactly the right dimension.”

    But why had this been missed for so long?

    Hallén elaborated that, “this wasn’t the kind of static fractal we normally think of. Instead, at longer times the motion of the monopoles would actually erase and rewrite the fractal.”

    This made the fractal invisible to many conventional experimental techniques.

    Working closely with Professors Santiago Grigera of the Universidad Nacional de La Plata, and Alan Tennant of the University of Tennessee, the researchers succeeded in unravelling the meaning of the previous experimental works.

    “The fact that the fractals are dynamical meant they did not show up in standard thermal and neutron scattering measurements,” said Grigera and Tennant. “It was only because the noise was measuring the monopoles motion that it was finally spotted.”

    As regards the significance of the results, which appear in Science this week, Moessner explains: “Besides explaining several puzzling experimental results that have been challenging us for a long time, the discovery of a mechanism for the emergence of a new type of fractal has led to an entirely unexpected route for unconventional motion to take place in three dimensions.”

    Overall, the researchers are interested to see what other properties of these materials may be predicted or explained in light of the new understanding provided by their work, including ties to intriguing properties like topology. With spin ice being one of the most accessible instances of a topological magnet, Moessner said, “the capacity of spin ice to exhibit such striking phenomena makes us hopeful that it holds promise of further surprising discoveries in the cooperative dynamics of even simple topological many-body systems.”

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  • An integrated, net-negative system captures carbon and produces ethylene

    An integrated, net-negative system captures carbon and produces ethylene

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    Newswise — Engineers at the University of Illinois Chicago have built a machine that captures carbon from flue gas and converts it to ethylene.  

    The device integrates a carbon capture system with an ethylene conversation system for the first time. And, the system not only runs on electricity, but it also removes more carbon from the environment than it generates – making it what scientists call net-negative on carbon emissions. 

    Among manufactured chemicals worldwide, ethylene ranks third for carbon emissions after ammonia and cement. Ethylene is used not only to create plastic products for the packaging, agricultural and automotive industries but also to produce chemicals used in antifreeze, medical sterilizers and vinyl siding for houses, for example.  

    The system and the results of the UIC College of Engineering scientists’ experiments are published in an Energy & Environmental Science paper titled “Fully-Integrated Electrochemical System that Captures CO2 from Flue Gas to Produce Value-Added Chemicals at Ambient Conditions.” 

    “This is the first demonstration of a net-negative, all-electric integrated system to capture carbon from pollutants and create a highly valuable resource,” said Meenesh Singh, UIC assistant professor in the department of chemical engineering. 

    “There is an urgent need to develop efficient technologies for integrated carbon capture and conversion to sustainably produce net-negative fuels. Currently, integrated carbon capture and conversion systems are highly energy-intensive and work in a discontinuous cycle of carbon dioxide capture and reduction. Efficiently integrating carbon capture with the conversion system eliminates the need for transportation and storage, and thereby increasing its energy efficiency.” 

    The integrated carbon capture and conversion system developed at UIC continuously captures carbon dioxide from flue gas to produce high-purity ethylene.  

    “This is an important milestone in ethylene decarbonization,” Singh said.  

    To capture carbon from the air or flue gas, Singh’s lab modified a standard artificial leaf system with inexpensive materials to include a water gradient — a dry side and a wet side — across an electrically charged membrane.  

    On the dry side, an organic solvent attaches to available carbon dioxide to produce a concentration of bicarbonate, or baking soda, on the membrane. As bicarbonate builds, these negatively charged ions are pulled across the membrane toward a positively charged electrode in a water-based solution on the membrane’s wet side. The liquid solution dissolves the bicarbonate back into carbon dioxide, so it can be released and harnessed for CO2 conversion.  

    The system uses a modular, stackable design that allows the system to be easily scaled up and down. 

    To convert captured carbon dioxide to ethylene, Singh and his colleagues used a second system in which an electric current is passed through a cell. Half of the cell is filled with carbon dioxide captured from a carbon capture system, the other half with a water-based solution. An electrified catalyst draws charged hydrogen atoms from the water molecules into the other half of the unit separated by a membrane, where they combine with charged carbon atoms from the carbon dioxide molecules to form ethylene.  

    The UIC researchers integrated the two systems by feeding the captured carbon dioxide solution to the carbon conversion system and recycling it back. The closed-loop recycling of solution ensures a constant supply of carbon dioxide from flue gas and its conversion to ethylene. 

    To test their integrated system, the researchers implemented a 100-square-centimeters bipolar membrane electrodialysis unit to capture carbon dioxide from the flue gas and hydraulically connected it to the 1-square-centimeter electrolysis cell to produce ethylene.  

    They were able to test the system continuously, 24 hours per day for seven days. The system was not only stable the entire time, it also captured carbon at a rate of 24 grams per day and produced ethylene at a rate of 188 milligrams per day. 

    “In the journey to make ethylene production green, this is a potential breakthrough,” Singh said. “Our next step is to scale up the integrated carbon capture and conversion system to produce ethylene at higher rates — a rate of 1 kilogram per day and capture carbon at a rate higher than kilograms per day.” 

    Co-authors of the study include Aditya Prajapati and Rohan Sartape of UIC, and Miguel Galante, Jiahan Xie, Samuel Leung, Ivan Bessa, Marcio Andrad, Robert Somich, Marcio Reboucas, Gus Hutras and Nathalia Diniz of Braskem. Research to develop this technology has received support from the U.S. Department of Energy (DE-SC-0022321) and Braskem. 

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  • Reliance on moose as prey led to rare coyote attack on human

    Reliance on moose as prey led to rare coyote attack on human

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    Newswise — COLUMBUS, Ohio – Wildlife researchers have completed a study that may settle the question of why, in October 2009, a group of coyotes launched an unprovoked fatal attack on a young woman who was hiking in a Canadian park. 

    By analyzing coyote diets and their movement in Cape Breton Highlands National Park, where the attack occurred on a popular trail, the researchers concluded that the coyotes were forced to rely on moose instead of smaller mammals for the bulk of their diet – and as a result of adapting to that unusually large food source, perceived a lone hiker as potential prey. 

    The findings essentially ruled out the possibility that overexposure to people or attraction to human food could have been a factor in the attack – instead, heavy snowfall, high winds and extreme temperatures created conditions inhospitable to the small mammals that would normally make up most of their diet. 

    “The lines of evidence suggest that this was a resource-poor area with really extreme environments that forced these very adaptable animals to expand their behavior,” said lead author Stan Gehrt, a wildlife ecologist at The Ohio State University. 

    “We’re describing these animals expanding their niche to basically rely on moose. And we’re also taking a step forward and saying it’s not just scavenging that they were doing, but they were actually killing moose when they could. It’s hard for them to do that, but because they had very little if anything else to eat, that was their prey,” he said. “And that leads to conflicts with people that you wouldn’t normally see.”

    The research is published in the Journal of Applied Ecology. 

    The death of 19-year-old folk singer Taylor Mitchell is the only fatality resulting from a coyote attack on a human adult ever documented in North America. 

    Gehrt, who leads the Urban Coyote Research Project that has monitored coyotes living in Chicago since 2000, was consulted by media for his expertise after the attack. In urban areas like Chicago, where thousands of coyotes live among millions of people, injuries from coyote-human encounters are very rare. 

    “We had been telling communities and cities that the relative risk that coyotes pose is pretty low, and even when you do have a conflict where a person is bitten, it’s pretty minor,” said Gehrt, a professor in Ohio State’s School of Environment and Natural Resources. “The fatality was tragic, and completely off the charts. I was shocked by it – just absolutely shocked. 

    “A lot of people began wondering if we were at the front edge of a new trend, and if coyotes were changing their behavior. And we didn’t have good answers.” 

    Gehrt expanded an initial investigation of the fatal attack – and a few dozen less severe human-coyote incidents in the park before and after Mitchell’s death – into a detailed field study. Between 2011 and 2013, he and colleagues captured 23 adult and juvenile coyotes living in the Cape Breton park and fitted them with devices to document their movement and use of space. 

    To obtain dietary information, the team also snipped whiskers from the live-captured coyotes and from the bodies of coyotes implicated in the fatal attack and in other human-coyote incidents. For comparison, the researchers collected fur from potential prey – southern red-backed voles, shrews, snowshoe hare, white-tailed deer and moose – and hair from local barbershops that served as a proxy for human food.

    Seth Newsome, professor of biology at the University of New Mexico and corresponding author of the study, analyzed stable isotopes of carbon and nitrogen in these whisker and hair samples to determine what the coyotes had been eating in the months before they were captured or lethally removed from the population. 

    The analysis showed that, on average, moose constituted between half and two-thirds of the animals’ diets, followed by snowshoe hare, small mammals and deer. 

    “This dietary evidence was the critical piece to it,” Gehrt said. “Their diets changed because they’re taking advantage of whatever different food items are available at the time. We’re used to seeing big oscillations across the segments of whiskers depending on the season. But in this system, for these coyotes, we don’t see that – they flat line at the moose end, so there’s very little variation in their diet.”

    Samples from the coyotes that were confirmed to have been involved in the fatal attack showed they had been eating only moose, “and their diet wasn’t changing,” he said. An analysis of coyote droppings confirmed the isotope findings. The researchers found only a few examples of individual animals having eaten human food. 

    Beyond the dietary analysis, Gehrt and colleagues did test for the possibility that coyotes were familiar with humans, and therefore not fearful around people. The movement patterns showed that while the coyotes’ space use was extensive – likely related to the need to search far and wide for prey – the animals largely avoided areas of the park frequented by people and were more active at night during periods when daytime human use was at its highest. Prohibition on hunting and trapping in the park also removed a human threat. 

    “It’s a big area for these coyotes to live in and never have a negative experience with a human – if they have any experience at all,” Gehrt said. “That also leads to the logical assumption that we’re making, which is that it’s not hard for these animals to test to see whether or not people are a potential prey item.” 

    In cities and most other wilderness areas where coyotes live, food of all types is plentiful – suggesting only areas low on natural prey, like islands and remote northern climates, would pose a similar risk for coyote-human interactions, Gehrt said. Their survival in Cape Breton, he said, is attributable to their remarkable ability to adjust to their environment.

    “These coyotes are doing what coyotes do, which is, when their first or second choice of prey isn’t available, they’re going to explore and experiment, and change their search range,” he said. “They’re adaptable, and that is the key to their success.” 

    This work was supported by Parks Canada, the Nova Scotia Department of Lands and Forestry, and the Max McGraw Wildlife Foundation.

    Additional co-authors include Erich Muntz of Cape Breton Highlands National Park, Evan Wilson of Ohio State and Jason Power of the Nova Scotia Department of Lands and Forestry.

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  • Recycled gold from SIM cards could help make drugs more sustainable

    Recycled gold from SIM cards could help make drugs more sustainable

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    Newswise — Researchers have used gold extracted from electronic waste as catalysts for reactions that could be applied to making medicines.

    Re-using gold from electronic waste prevents it from being lost to landfill, and using this reclaimed gold for drug manufacture reduces the need to mine new materials. Current catalysts are often made of rare metals, which are extracted using expensive, energy-intensive and damaging mining processes.

    The method for extracting gold was developed by researchers at the University of Cagliari in Italy and the process for using the recovered gold was developed by researchers at Imperial College London. The study is published in ACS Sustainable Chemistry & Engineering.

    Waste electrical and electronic equipment (WEEE) is typically sent to landfill, as separating and extracting the components requires a lot of energy and harsh chemicals, undermining its economic viability. However, WEEE contains a wealth of metals that could be used in a range of new products.

    Finding ways to recover and use these metals in a low-cost, low-energy and non-toxic way is therefore crucial for making our use of electronic goods more sustainable.

    Lead researcher Professor James Wilton-Ely, from the Department of Chemistry at Imperial, said: “It is shocking that most of our electronic waste goes to landfill and this is the opposite of what we should be doing to curate our precious elemental resources. Our approach aims to reduce the waste already within our communities and make it a valuable resource for new catalysts, thereby also reducing our dependence on environmentally damaging mining practices.”

    “We are currently paying to get rid of electronic waste, but processes like ours can help reframe this ‘waste’ as a resource. Even SIM cards, which we routinely discard, have a value and can be used to reduce reliance on mining and this approach has the potential to improve the sustainability of processes such as drug manufacture.”

    Professors Angela Serpe and Paola Deplano, from the University of Cagliari, developed a low-cost way to extract gold and other valued metals from electronic waste such as printed circuit boards (PCBs), SIM cards and printer cartridges under mild conditions. This patented process involves selective steps for the sustainable leaching and recovery of base metals like nickel, then copper, silver and, finally, gold, using green and safe reagents.

    However, the gold produced from this process is part of a molecular compound and so cannot be re-used again for electronics without investing a lot more energy to obtain the gold metal. Seeking a use for this compound of recovered gold, the team of Professor Wilton-Ely and his colleague, Professor Chris Braddock, investigated whether it could be applied as a catalyst in the manufacture of useful compounds, including pharmaceutical intermediates.

    Catalysts are used to increase the rate of a chemical reaction while remaining unchanged and are used in most processes to produce materials. The team tested the gold compound in a number of reactions commonly used in pharmaceutical manufacture, for example for making anti-inflammatory and pain-relief drugs.

    They found that the gold compound performed as well, or better, than the currently used catalysts, and is also reusable, further improving its sustainability.

    The researchers suggest that making it economically viable to recover gold from electronic waste could create spin-off uses for other components recovered in the process. For example, in the process, copper and nickel are also separated out, as is the plastic itself, with all these components potentially being used in new products.

    Sean McCarthy, the PhD student leading the research in the lab at Imperial, said: “By weight, a computer contains far more precious metals than mined ore, providing a concentrated source of these metals in an ‘urban mine’.”

    Professor Serpe said: “Research like ours aims to contribute to the cost-effective and sustainable recovery of metals by building a bridge between the supply of precious metals from scrap and industrial demand, bypassing the use of virgin raw materials.”

    The teams are working to extend this approach to the recovery and re-use of the palladium content of end-of-life automotive catalytic converters. This is particularly pressing as palladium is widely used in catalysis and is even more expensive than gold.

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  • New study highlights urgent need to safeguard deep reefs – one of the largest and least protected ecosystems

    New study highlights urgent need to safeguard deep reefs – one of the largest and least protected ecosystems

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    Newswise — As world leaders, government negotiators, scientists and conservationists gather at the UN Biodiversity Conference, COP15, to agree to halt and reverse nature loss, an international team of marine scientists and conservationists have made an impassioned plea for the urgent conservation of deep reefs.

    Their calls are based on a new study, recently published in the journal Conservation Letters, led by scientists from Nekton, the Western Indian Ocean (WIO) and the University of Oxford. This confirms for the first time that deep reef habitats, notably in the WIO, are largely unprotected despite being under threat from a multitude of stressors, including overfishing, pollution, climate change and, in the near future, seabed mining.

    Their calls follow COP27 in Egypt, where many scientists, politicians and campaigners concluded that the 1.5C climate goal died, signing the death warrant on the vast majority of shallow reefs.

    Deep reefs (found below 30 m) provide essential ecosystem services for climate change resilience, ocean health, and food security whilst also acting as a refugia for organisms threatened in shallow water, including commercially important species. Despite this, deep reefs are barely protected, even though they have a larger geographic footprint than their shallower counterparts. Furthermore, the scarcity of fish in shallow waters combined with modern deep sea fishing technologies is resulting in deep reefs being increasingly exploited by coastal communities who need fish for their food security.

    “We strongly encourage deep reefs to be included in conservation and sustainable management action to complement global targets, notably 30% protection of the global ocean by 2030” said the study’s lead author, Dr Paris Stefanoudis, a marine biologist at the University of Oxford’s Department of Biology and a Research Scientist at Nekton. “Deep reefs are critical to a healthy marine ecosystem and face similar threats from overfishing, pollution and climate change faced by the much-imperilled shallow reef system.”

    Covering over 8% of the global ocean, the Western Indian Ocean is one of the least known, least protected, and most threatened marine regions of our planet. Shallow and deep coral reefs of the WIO are marine biodiversity hotspots with high numbers of species that are found nowhere else on Earth. They are essential to the region’s 100 million people living within 100km of the coastline, including over three million people who are directly dependent on artisanal fishing for their livelihoods. The population is projected to double over the next 30 years, driving greater stressors on the ocean’s biological capacity to support lives and livelihoods.

    The scientific team has co-developed a new framework for conserving deep reefs including practical recommendations and specific actions for regional policy-makers, conservationists and scientists. This has been published in the journal Conservation Letters.

    The researchers urge policy makers to use the COP15 summit to agree to the following:

    1. Highly protect 30% of ecosystems by 2030 (‘30 by 30’), and include deep reefs in this target.
    2. Conserve deep reef ecosystems and their resources by specifically including them in fishery regulations, marine protected areas, and marine spatial planning.
    3. Extend current management efforts on shallow reefs to include deep reefs as these ecosystems are often connected.
    4. Invest in foundational, fundamental, and applied research on deep reef biodiversity, ecosystem functioning and provided services.
    5. Develop national, international, transnational cross-stakeholder collaborations to survey and conserve deep reefs in national and international (High Seas) waters

    “To halt and reverse nature loss, the UN Biodiversity Conference, COP15 must prioritise the conservation of unique ecosystems such as deep reefs, one of the least protected ecosystems on Earth” stated co-author Professor Lucy Woodall, Professor of Marine Biology at the University of Oxford, Nekton Principal Scientist, “We hope our recommendations and actions will be useful for decision makers in the WIO, be applied within the new Western Indian Ocean regional policy and provide the springboard for deep reefs to become protected across the global ocean”, continued Professor Woodall.

    Co-author Melita Samoilys, CORDIO East Africa explains: “Our framework was jointly developed with a range of stakeholders from academia, research, management and government, and provides a list of actions across three themes: capacity, information collection, and information sharing. Given the scale of the issue, we have also identified which parties – such as funding agencies, government, Institutions or the research community – are needed to work together to realise those actions”.

    “To ensure a prosperous and resilient Western Indian Ocean, it is essential that deep reefs are no longer ignored by scientists and policy makers, and they must be specifically considered in conservation and management strategies”, shared co-author Athur Tuda, Executive Director of the Western Indian Ocean Marine Science Association, WIOMSA.

    A video summary of the findings and proposals is available at https://www.youtube.com/watch?v=lz1Tm2wo2JU&t=2s 

     

    Notes for Editors

    The Publication

    ‘Stakeholder-derived recommendations and actions to support deep-reef conservation in the Western Indian Ocean’ published in Conservation Letters, co-authored by 18 scientists representing 18 different organisations including from South Africa, Tanzania, Seychelles, Kenya, Mozambique, UK and USA. https://conbio.onlinelibrary.wiley.com/doi/epdf/10.1111/conl.12924

    Video, photographic and infographic content: https://nektonmission.org/about/press-news

    WIO Conservation Framework: The UNEP’s Nairobi Convention provides the regional framework for governments, civil society and the private sector to strengthen the health and resilience of the Indian Ocean. At the Nairobi Convention’s COP10 in November 2021, the WIO nations unanimously agreed to co-create an ambitious new regional ocean strategy and accompanying policies to support sustainable ocean development underpinned by science-based management. ‘The Western Indian Ocean – Resilience & Prosperity Initiative’ (WIO-RPI), as it’s known includes establishing a just, equitably designed and managed connected network of ecologically and culturally representative protected areas in national and international waters, complementing global targets. Nekton and University of Oxford scientists are the technical partners supporting the implementation of the WIO-RPI.

    Deep Reefs: Deep reefs include mesophotic (30-150 m), rariphotic (150-300 m), and cold-water coral reefs (>300 m) and have a great geographic                              

    Nekton: Nekton works to accelerate the scientific exploration and conservation of the ocean for people and the planet. Nekton is an independent, not-for-profit research institute and is a UK registered charity. www.nektonmission.org

    University of Oxford: Oxford University has been placed number 1 in the Times Higher Education World University Rankings for the seventh year running, and ​number 2 in the QS World Rankings 2022. At the heart of this success are the twin-pillars of our ground-breaking research and innovation and our distinctive educational offer. Oxford is world-famous for research and teaching excellence and home to some of the most talented people from across the globe. Our work helps the lives of millions, solving real-world problems through a huge network of partnerships and collaborations. The breadth and interdisciplinary nature of our research alongside our personalised approach to teaching sparks imaginative and inventive insights and solutions. Through its research commercialisation arm, Oxford University Innovation, Oxford is the highest university patent filer in the UK and is ranked first in the UK for university spinouts, having created more than 200 new companies since 1988. Over a third of these companies have been created in the past three years. The university is a catalyst for prosperity in Oxfordshire and the United Kingdom, contributing £15.7 billion to the UK economy in 2018/19, and supports more than 28,000 full time jobs.

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  • Plant ecologist awarded NSF grant for restoring the culturally important Emory oak

    Plant ecologist awarded NSF grant for restoring the culturally important Emory oak

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    Newswise — Assistant professor Sara Souther of Northern Arizona University’s School of Earth and Sustainability (SES) is the principal investigator on a major new project focused on restoring a tree species important to the cultural heritage of tribal communities in the Southwest. 

    Acorns from the Emory oak tree are a critically important resource for the Western Apache tribal nations—including the Yavapai-Apache, Tonto Apache, San Carlos Apache and White Mountain Apache in east and central Arizona—who use it both for food and cultural and ceremonial purposes. Groves of Emory oak have been declining in health and yielding fewer acorns with each harvest for several decades due to loss of habitat, fire suppression, livestock grazing, groundwater reductions, species competition and climate change. 

    With $1.5 million in funding from the National Science Foundation, Souther will launch a five-year project starting in March entitled “DISES: Restoration of a southwestern cultural keystone species: Integrating socio‐ecological systems to predict resilience of traditional acorn harvest by western Apache communities.” Co-PIs on the multidisciplinary conservation project, representing SES and NAU’s School of Forestry as well as the departments of biology, sociology and geography, planning & recreation, are associate professor Clare Aslan, Regents’ professor Peter Fulé, assistant professor Alark Saxena, associate teaching professor Amanda Stan, associate professor Diana Stuart, professor Andi Thode and associate professor Amy Whipple. 

    “I am extremely excited to have the resources to explore this amazing social-ecological system. For a long time, I’ve felt that wild harvest and traditional ecological practices and traditions have been viewed as niche issues within the world of conservation. It is thrilling to see this work elevated by the NSF,” Souther said.  

    “We are taking a holistic landscape-level approach to understand the threats to these woodlands. Emory oaks are a cultural keystone species for western Apache tribes and the dominant oak in the Madrean oak woodlands, which cover around 80,000 km2 across the Southwest and US-Mexico borderlands,” she said. “Despite this, the Madrean oak system is understudied. In order to conserve Emory oak, we need to quickly learn a lot about this ecosystem, and in particular, we must understand what constrains population growth and viability.” 

    Souther’s work has always focused on understanding ecocultural interactions, supporting communities connected to these landscapes and conserving land and traditions. This funding will support these goals, providing the opportunity to rapidly learn about the Madrean oak woodlands as a coupled human and natural system, she said. 

    This project builds on work done through the Emory Oak Collaborative Tribal Restoration Initiative  (EOCTRI), a collaborative partnership between NAU, the U.S. Forest Service and five different Apache tribes. Their goal is to restore and protect Emory oak stands to ensure the long-term persistence of Emory oak using tribal traditional ecological knowledge to guide goals and activities. Since 2018, the partners have worked together to identify and assess important Emory oak stands, complete clearances and begin implementing restoration and protection activities for several groves. With this new project, the team’s goals are to expand their knowledge of the Emory oak system, support the goals of EOCTRI—to conserve Emory oak trees and the traditional acorn harvest by Western Apache tribes—and provide knowledge to the EOCTRI group according to the ethics of the Chi’Chil Advisory Committee. Watch this video to learn more about EOCTRI’s efforts. 

    Souther’s project also is related to an initiative that was launched to better understand how to manage ecocultural resources on public lands—the Tribal Nations Botanical Research Collaborative (TNBRC), a U.S. Forest Service Citizen Science program in which volunteers collect information on traditionally used plants that have cultural, medicinal or economic values important to tribal communities. They record observations of these plants using the iNaturalist app on their cell phones. Scientists gather and analyze the data and use it to shape conservation and land management goals for increased sustainability. 

    Research related to Souther’s roots in rural Appalachia 

    “My work with the Emory oak builds on my past research on traditional use plant conservation in Appalachia,” Souther said. “I grew up in West Virginia, which has a rich heritage of harvesting wild plants for food, medicine and other essentials. It wasn’t until I went to Paraguay, as a Peace Corps volunteer, that I realized how much of this traditional knowledge had been lost in Appalachian culture. In Paraguay, small children knew the names and uses of all the plants growing in forests and fields nearby—which meant that most children had a working knowledge of hundreds of plants. Meanwhile, in West Virginia, most of this ecological knowledge was held by the elderly and was not actively passed down to youth. I could see our Appalachian culture disappearing, and for me, this ecocultural erosion was devastating. Harvest expeditions in Appalachia, whether to pick ramps (wild onions), blueberries or pawpaw (a fruit related to custard-apples), were part of the experience growing up in West Virginia and important for connecting with family and the land. More broadly, I feel that maintaining human connections to the land is key to human health and well-being and critical to inspire conservation of our wild spaces.” 

    Project designed to involve students from underrepresented groups  

    Souther is dedicated to outreach, mentorship and training to promote the participation of underrepresented groups in STEM, and she is using this project as an opportunity to hire several students. Souther is also a co-PI with Amy Whipple on another project designed to increase diversity in STEM targeting post-baccalaureate training for underrepresented groups, principally Indigenous communities.  

    “Coming from rural Appalachia, I connect with students who may feel like outsiders in STEM fields. It is extremely important to me to support underrepresented groups as they navigate graduate school and academia. My commitment to increasing diversity in STEM fields is personal, since support from NSF and university faculty launched my career, and also practical, because I believe that the sciences will be strengthened by diverse opinions and thinkers.” 

    The team will recruit four graduate students for this project as well as undergraduate students to support field work in the summer. Applications are available on the lab website. 

    “The broader impacts of this project will be to advance understanding and predictive modeling of stochastic drought events, which will likely drive ecological change in the Southwest and other arid regions,” Souther said. “Integrating information from Native American tribal collaborators, we will contribute to diversity and inclusion in environmental resource management, ensuring that Indigenous perspectives and needs are incorporated into decision-making.” 

    She is also working on a two-year project funded through a $538,203 award from the National Oceanic and Atmospheric Administration entitled, “Projecting socio-ecological impacts of drought in southwestern ecosystems to prioritize restoration initiatives.” Stuart and Steven Chischilly from the Navajo Technical Institute are co-PIs on this project. 

    About Northern Arizona University 

    Founded in 1899, Northern Arizona University is a community-engaged, high-research university that delivers an exceptional student-centered experience to its nearly 28,000 students in Flagstaff, at 22 statewide campuses and online. Building on a 123-year history of distinctive excellence, NAU aims to be the nation’s preeminent engine of opportunity, vehicle of economic mobility and driver of social impact by delivering equitable postsecondary value in Arizona and beyond. NAU is committed to meeting talent with access and excellence through its impactful academic programs and enriching experiences, paving the way to a better future for the diverse students it serves and the communities they represent.  

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  • Genetic barriers, a warming ocean, and the uncertain future for an important forage fish

    Genetic barriers, a warming ocean, and the uncertain future for an important forage fish

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    Newswise — In the vast oceans, one would assume their inhabitants can travel far and wide and, as a result, populations of a species would mix freely. But this doesn’t appear to be the case for a vital forage fish called the sand lance.

    Sand lance are small schooling fish impressively rich in lipids, which makes them a fantastic and significant food source for at least 70 different species ranging from whales and sharks to seabirds, says UConn Associate Professor of Marine Sciences Hannes Baumann.

    The Northern sand lance can be found from the waters off New Jersey all the way north to Greenland. Researchers, including Baumann and Ph.D. student Lucas Jones, were interested to see if sand lance constitute a massive, homogenous population, or whether there are genetically distinct groups. Their findings are published in the ICES Journal of Marine Science.

    Baumann explains these are important questions to answer when considering conservation and sustainable management of the species, especially since the regions where sand lance live are warming faster than many areas of the planet due to climate change.

    Sampling fish from such a broad range is no small task, but two years ago, Baumann and Jones began reaching out to other researchers to see if they had tissue samples to spare. Baumann credits the work to the international group of colleagues who contributed samples including co-authors from Canada and Greenland, and who helped sequence and analyze the data including co-authors from Cornell University.

    In all, Baumann, Jones, and the team were able to sequence and analyze nearly 300 samples from a variety of locations across the sand lance’s range using a technique called low-coverage whole genome sequencing. They also sequenced the first reference genome for sand lance.

    In a nutshell, Baumann says they found an area on the Scotian Shelf, off the coast of Nova Scotia, where a genetic break occurs. The researchers distinguished two distinct groups, one north and one south of the divide, with parts of the genome differing quite dramatically – namely on chromosomes 21 and 24. Without obvious physical barriers like a mountain range separating the groups, Baumann says it’s logical to ask how these differences are possible.

    “That is the scientific conundrum,” says Baumann, and the answer, it appears, lies in the currents.

    “When fish from the north reproduce and drift south, they are genetically less adapted to warmer southern waters, even if it’s five or six degrees warmer in the winter, they are just not surviving,” Baumann says. “These populations may be linked by the ocean currents, but the realized connectivity is basically zero.”

    This finding is a first for the sand lance, but it has been shown in other species such as lobsters, cod, and scallops, and this research adds further evidence to an apparent temperature divide at the Scotian Shelf, and helps demonstrate that temperature is an important factor in survival.

    “Example after example shows that the ocean is not as homogeneous a place as expected, and there are all kinds of things that prevent that constant mixing,”Baumann says. “We found another striking example of that.”

    When researchers find adaptation in an environment where mixing is continuous, like in the ocean, Baumann says, the question is how it is possible that groups stay different, even though they are constantly encountering other genotypes. That is where powerful genomic methods, like the ones used in this paper, come in handy.

    “Parts of the genome in many species have what we call a ‘genetic inversion,’ which means that the genes on the chromosome from one parent have a certain order and the genes on the same chromosome that come from the other parent that code for the same thing, and they’re the same area, but they’re flipped,” Baumann says.

    These inversions mean recombination cannot occur; therefore, the genes are passed down through the generations and play an important role in adaptation.

    “We discovered on chromosomes 21 and 24 there are whole regions that are completely different and that is like the trademark signature of what we call an inversion because there’s no recombination going on.”

    Baumann says that knowing there are genetic and ecological barriers on the Scotian Shelf is important, because with climate change, this barrier may move north and while that may be good news for southern fish, it’s bad news for the fish currently there.

    The researchers were also a little relieved in finding two clusters, because had there been many smaller clusters, it could make management and conservation more challenging, especially considering scenarios like the construction of offshore wind parks. Areas potentially well situated for wind turbines can also be habitats for sand lance, and construction disrupts habitats. If there were many, smaller population clusters, a single construction project could pose the risk of completely wiping out a cluster, whereas with more widely dispersed populations, though the local population may be temporarily disturbed, it will not be long before they are able to re-establish after construction is completed.

    Baumann plans to focus further research on studying the genetic basis of the thermal divide.

    “We want to make sure that this fish is productive and resilient, despite climate change, so we should make sure these areas where they are occurring are protected,” Bauman says. “These decisions should include experts to ensure if there’s an area that is very critical to sand lance, that any disturbance is temporary.”

    It isn’t an unsolvable conflict, but it is something that we need to do, says Baumann, who also notes that it is possible that sand lance north of the thermal divide are already suffering more from warming because the region is warming faster.

    “It could be that these two clusters have different vulnerabilities to climate change,” he says. “We don’t know that yet but that’s something that should be pursued.”

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  • Researcher aims to uncover plant invasions in the tropics

    Researcher aims to uncover plant invasions in the tropics

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    Newswise — Invasive species of plants have a knack for settling in new settings and making big changes to an ecosystem, even leading to extinctions of native species.

    Assistant Research Professor in UConn’s Institute of the Environment Julissa Rojas-Sandoval explains that invasive plants are non-native species that have been introduced into new areas generally as a result of human activities, and that they are actively spreading, causing harm to the environment, the economy, and human health.  Invasive plants may have significant long-term implications for the conservation of native biodiversity, but to combat the problem, we need to know which plants are invasive, where they’re from, and how they got there.

    Rojas-Sandoval leads an international collaboration including researchers from all Central American countries, working together to compile the most comprehensive databases of invasive plant species in Central America. The collaboration is called FINCA: Flora Introduced and Naturalized in Central America, and their first paper was published this week in Biological Invasions.

    The collaboration arose to meet a need, says Rojas-Sandoval. “While we have a good understanding of the processes and mechanisms of plant invasions in temperate regions, there is a huge gap in our knowledge about biological invasions in the tropics, and this lack of information is limiting our ability to respond to invasive plants.”

    Remediation and the impact on the conservation of biodiversity is an important focus, but invasive plants also threaten the social and economic impact aspects of the region. Rojas-Sandoval points out that for places like her native Costa Rica, which relies on eco-tourism and agriculture, the impacts of not dealing with the invasive species could be significant.

    It has been suggested that the huge diversity of plants in tropical regions may provide resistance to invasions, meaning that these ecosystems could be less threatened by invasive species because of the competition between so many different plants, but Rojas-Sandoval has studied this topic for the last 15 years and says the problem is greater than is widely understood.

    “Across the tropics, the acceleration in the rates of introduction of non-native plants, as well as increments in the rates of habitat loss and forest degradation, are transforming tropical forests and making them more susceptible and less resistant to invasions,” she says.

    Rojas-Sandoval explains that, as the juncture between North and South America, Central America is a regional hotspot of biodiversity, home to about 7% of the world’s plant and animal species. The region is also very vulnerable to climate change, she says:

    “Climate models predict more extreme events for Central America, more and stronger hurricanes, droughts, and other impacts related to climate change. But we don’t know how climate change is already impacting both native and invasive plant species across this region. That information is necessary to be able to start doing something.”

    Rojas-Sandoval and co-author Eduardo Chacón-Madrigal from the University of Costa Rica seized the opportunity and decided to start collecting and compiling any available information to make a comprehensive checklist necessary to address the challenges posed by invasive plants.

    They also reached out to other researchers from across Central America to see if they would be interested in collaborating and the timing was fortunate, says Rojas-Sandoval.

    “Due to COVID, people were stuck at home and, despite the many difficulties, we all had extra time to collaborate revising lists of species and providing crucial information for the project,” she says.

    The team gathered data from herbarium collections in Central America and from collections around the world as well as references from existing botanical surveys, lists of alien species, and other literature.

    “We compiled all this information into a list and then sent it to the experts in different countries so they could evaluate it. Then we did a second verification process because we wanted to be completely sure that we were dealing with species that were 100% alien to the region and to validate the occurrence and classification performed by the experts.

    “We were able to identify that species from all over the world have been introduced to different countries in Central America, and more than 60% of them have been introduced for ornamental purposes. It is good that we can identify those species, so we know where to focus for later studies.”

    The team also determined that invasive plants have made their way into all the major habitats in Central America, and the trend is steadily increasing. This information can now be used to generate specific recommendations for the governments or for the local authorities, to use their resources in the best ways possible to have an impact in controlling the invasive species, says Rojas-Sandoval, adding that the best remedy is prevention – alerting people to the issues before the plants even arrive.

    For invasive plants that have already been established, it will take education, persistence, and resources to deal with the problem. However, another important aspect of the problem is that developing countries often don’t have the additional resources needed to fully address the situation.

    “The local authorities and people in Central America and other regions in the tropics are already dealing with so many issues, including poverty, climate change, pollution, and over-exploitation of natural resources that it is even more important to optimize the use of any resources available to mitigate the impact of invasive species,” she says. “This is more bad news for many people dealing with so many problems, and it is crucial to increase awareness and support for the issue of biological invasions in the tropics.

    “The sooner we start doing something, the better the results will be.”

     

    The FINCA collaboration also includes: Eduardo Chacón-Madrigal (Universidad de Costa Rica), Lilian Ferrufino-Acosta (Universidad Nacional Autónoma de Honduras), Rodolfo Flores (Los Naturalistas, Panama), Omar López (Universidad de Panamá & Smithsonian Tropical Research Institute), AnaLu MacVean (York College), Indiana Coronado (Universidad Nacional Autónoma de Nicaragua), Pablo Galán and Dagoberto Rodríguez (Herbario Jardín Botánico La Laguna, El Salvador), and Yader Ruiz (Universidad de El Salvador).

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  • Wildlife disease ecologist launches project to help DoD monitor quality of bird habitats on military installations

    Wildlife disease ecologist launches project to help DoD monitor quality of bird habitats on military installations

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    Newswise — The U.S. Department of Defense (DoD) owns military installations on nearly 27 million acres all over the country—roughly equivalent in size to Virginia—and oversees these lands through a network of natural resource managers. According to the DoD, the program supports “the military’s testing and training mission by protecting its biological resources… and working to ensure the long-term sustainability of our nation’s priceless natural heritage.” One of the program’s top priorities is monitoring and maintaining populations of threatened and endangered species (TES) of birds—especially those that eat insects and other arthropods like spiders, which have been particularly hard hit.  

    Monitoring the quality of the birds’ habitats, including their typical diets of insects, is one of the most critical ways scientists investigate declining bird populations. The tools the military land managers use to assess diets and habitats are crucial, but the current methods of measuring habitat quality related to the birds’ food resources are time consuming, expensive and require specific biological expertise. 

    To this end, associate professor Jeff Foster of Northern Arizona University’s Department of Biological Sciences and the Pathogen and Microbiome Institute (PMI) was recently awarded a grant by the DoD for a new study, “Demonstration of Metabarcoding for Monitoring Bird Species Habitat Quality on DoD Installations.” This three-year, $900,000 project will focus on five insectivorous species on four military sites: 

    • Golden-cheeked Warbler (Setophaga chrysoparia) and Black-capped Vireo (Vireo atricapilla) at Fort Hood, Texas 
    • Least Bell’s Vireo (Vireo bellii pusillus) at Camp Pendleton, California 
    • Golden-winged Warbler (Vermivora chrysoptera) at Fort McCoy, Wisconsin 
    • Oahu Elepaio (Chasiempis ibidis) at Schofield Barracks, Hawaii  

    Advanced approach focuses on bioinformatics, metabarcoding 

    Metabarcoding is a technique that enables scientists to identify multiple species of plants or animals on a large scale based on rapid, high-throughput environmental DNA sequencing, which represents a huge technological step forward.  

    “We’ll assess habitat quality by using advanced genetic approaches to measure arthropod food resources in bird diets and from the vegetation on which these birds forage,” Foster said. “Our three primary objectives are to demonstrate the effectiveness of metabarcoding of bird diets and food resources; compare this genetic approach to conventional approaches that employ visual identification of arthropods using microscopes; provide user-friendly guidance to military land managers so they can understand the process and use this approach for monitoring in the future. 

    “The bioinformatics can be challenging and daunting if you’re first getting into DNA metabarcoding, so we’ll provide an established workflow that we can share with the land managers.” 

    The team will collect fecal samples from the birds (bird poop) and arthropod samples, perform bioinformatic and chemical composition analyses, validate the technology by comparing it to conventional methods, develop guidance documents and lead hands-on technical workshops for the military land managers. This will be the most in-depth diet analysis of birds on military installations done to date. 

    Foster brings his expertise as well as that of PMI to the project. “There’s much more to metabarcoding work than simply sequencing a gene. And here’s where our team excels. We use tools developed over the past 13 years for analyzing the human microbiome. NAU professor Greg Caporaso and his team at PMI have developed many of these tools, so we have considerable technical expertise in analyses, including understanding reference libraries of sequences and developing the analytical software.” 

    Collaborators include military scientists and undergraduate researcher 

    Foster will work closely with co-principal investigators Jinelle Sperry and Aron Katz from the U.S. Army Corps of Engineers Engineer Research and Development Center’s Construction Engineer Research Laboratory, as well as with collaborators at each of the installations. 

    NAU undergraduate researcher Hannah Brosius is working on the project with Foster and PMI researcher Alexandra Gibson. Brosius, who will be assisting with the lab work and analyses, said, “I’m excited about this project because the analysis of bird diets from feces will help us figure out why these endangered birds might be at risk. It’s fun to be able to take a fecal sample from a species; you can learn a lot using DNA to understand how an animal lives.”  

    She is looking forward to her future as a veterinarian. “I’m interested in lab work, which allows me to focus on a project and have results quickly. This research experience will be important for veterinary school and will expand my understanding of biology.” 

    Project to benefit TES monitoring across DoD sites 

    The project’s outcomes will have multiple benefits that will help DoD land managers monitor threatened and endangered species.  

    “It’s an effective and cost-efficient way to measure habitat quality, particularly as it relates to a key factor regulating insectivorous bird abundance—arthropod food resources,” Foster said. “The technology can be deployed at any DoD site where understanding diet or habitat quality is necessary for TES monitoring of vertebrate taxa. Population surveys can assess the current abundance and distribution of TES but determining the specific factors limiting their populations adds additional complexity. This method will not only give DoD natural resource managers the ability to distinguish poor versus high-quality habitat, but will provide critical information about restoration, habitat recovery from disturbance and a baseline of prey availability should arthropod populations decline regionally in the future.”  

    In addition, numerous other bird species are on the list of DoD Priority Species and could benefit from this technology as well as other taxa such as amphibians, reptiles and small mammals. 

    About Northern Arizona University 

    Founded in 1899, Northern Arizona University is a community-engaged, high-research university that delivers an exceptional student-centered experience to its nearly 28,000 students in Flagstaff, at 22 statewide campuses and online. Building on a 123-year history of distinctive excellence, NAU aims to be the nation’s preeminent engine of opportunity, vehicle of economic mobility and driver of social impact by delivering equitable postsecondary value in Arizona and beyond. NAU is committed to meeting talent with access and excellence through its impactful academic programs and enriching experiences, paving the way to a better future for the diverse students it serves and the communities they represent.  

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  • Three Techniques, Three Species, Different Ways to Fight Drought

    Three Techniques, Three Species, Different Ways to Fight Drought

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    The Science

    Rising temperatures and increasing droughts have scientists looking for ways to better predict how plants will react to stress. Every study offers a little more information. Now, scientists have discovered a way to yield a wealth of insights in a single study. Combining three advanced research techniques that are rarely used together, they found they could pinpoint how different types of plants protect themselves from harsh conditions. Even more surprising? Plants try various strategies to assure their survival.

    The Impact

    When used together, the three techniques reveal a surprising amount of information about the chemical processes inside plants. Scientists can also look for patterns across plant communities. The results can help identify when plants require more water or more nutrients to keep growing during times of stress, even in diverse environments. How plants respond to drought can also have profound impacts on the movement of carbon through the environment, which ultimately influences climate. 

    Summary

    Working under the Facilities Integrating Collaborations for User Science (FICUS) program, scientists examined the effects of drought on chemical processes inside the roots of three tropical rainforest species. The team included researchers from the University of Arizona, Pacific Northwest National Laboratory, and the University of Freiburg. To understand the plant’s chemical functioning, including how it utilized carbon, the team combined cutting-edge metabolomic and imaging technologies at the Environmental Molecular Sciences Laboratory (EMSL), a Department of Energy (DOE) user facility. They used powerful nuclear magnetic resonance spectroscopy to identify the type and structure of molecules in the plant roots. They then created detailed images of tissues using mass spectrometry (matrix-assisted laser desorption/ionization mass spectrometry) and took nanoscale measurements of elements and iisotopes (nanoscale secondary ion mass spectrometry).

    This combination of techniques yielded insights into different defense mechanisms plants use to survive drought. One species added woody lignin to thicken its roots. The second secreted antioxidants and fatty acids as a biochemical defense. The third appeared less affected by drought conditions, but the soil around it had a higher level of carbon. This indicates that the plant and the microbes in the soil were working together to protect the plant. Overall, this study demonstrates how multiple techniques can be combined to identify different drought-tolerance strategies and ways to keep plants thriving.

     

    Funding

    A portion of this research was performed under the FICUS exploratory effort and used resources at the DOE Joint Genome Institute and EMSL, both of which are DOE Office of Science user facilities. This research was supported in part by the European Research Council and the DOE Office of Science, Biological and Environmental Research program. The Philecology Foundation and the European Research Council also provided financial support.


    Journal Link: Environmental Science & Technology

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    Department of Energy, Office of Science

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  • Americans Flocking to Fire: National Migration Study

    Americans Flocking to Fire: National Migration Study

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    Newswise — Americans are leaving many of the U.S. counties hit hardest by hurricanes and heatwaves—and moving towards dangerous wildfires and warmer temperatures, finds one of the largest studies of U.S. migration and natural disasters.

    The ten-year national study reveals troubling public health patterns, with Americans flocking to regions with the greatest risk of wildfires and significant summer heat. These environmental hazards are already causing significant damage to people and property each year—and projected to worsen with climate change.

    “These findings are concerning, because people are moving into harm’s way—into regions with wildfires and rising temperatures, which are expected to become more extreme due to climate change,” said the University of Vermont (UVM) study lead author Mahalia Clark, noting that the study was inspired by the increasing number of headlines of record-breaking natural disasters.

    Published by the journal Frontiers in Human Dynamics on December 8, the study—titled “Flocking to Fire”—is the largest investigation yet of how natural disasters, climate change and other factors impacted U.S. migration over the last decade (2010-2020). “Our goal was to understand how extreme weather is influencing migration as it becomes more severe with climate change,” Clark said. 

    The top U.S. migration destinations over the last decade were cities and suburbs in the Pacific Northwest, parts of the Southwest (in Arizona, Colorado, Nevada, Utah), Texas, Florida, and a large swath of the Southeast (from Nashville to Atlanta to Washington, D.C.)—locations that already face significant wildfire risks and relatively warm annual temperatures, the study shows. In contrast, people tended to move away from places in the Midwest, the Great Plains, and along the Mississippi River, including many counties hit hardest by hurricanes or frequent heatwaves, the researchers say. (See maps for migration hotspots.)

    “These findings suggest that, for many Americans, the risks and dangers of living in hurricane zones may be starting to outweigh the benefits of life in those areas,” said UVM co-author Gillian Galford. “That same type of tipping point has yet to happen for wildfires and rising summer heat, our results suggest, probably because they’ve only become problems at the national level more recently.”

    One implication of the study—given how development can exacerbate risks in fire-prone areas—is that city planners may need to consider discouraging new development where fires are most likely or difficult to fight, researchers say. At a minimum, policymakers must consider fire prevention in areas of high risk with large growth in human populations, and work to increase public awareness and preparedness.

    “We hope this study will increase people’s awareness of wildfire risk,” said Clark, noting the study includes several maps highlighting the severity of national hazards across the country. “When you’re looking for a place to live on Zillow or through real-estate agents, most don’t highlight that you’re looking at a fire-prone region, or a place where summer heat is expected to become extreme. You have to do your research,” said Clark, noting the website Redfin recently added risk scores to listings.

    Despite climate change’s underlying role in extreme weather events, the team was surprised by how little the obvious climate impacts of wildfire and heat seemed to impact migration. “If you look where people are going, these are some of the country’s warmest places—which are only expected to get hotter.”

    “Most people still think of wildfires as just a problem in the West, but wildfire now impacts large swaths of the country—the Northwest down to the Southwest, but also parts of the Midwest and the Southeast like Appalachia and Florida,” said Clark, a researcher at UVM’s Gund Institute for Environment and Rubenstein School of Environment and Natural Resources.

    Beyond the aversion to hurricanes and heatwaves, the study identified several other clear preferences—a mix of environmental, social, and economic factors—that also contributed to U.S. migration decisions over the last decade.

    The team’s analysis revealed a set of common qualities shared among the top migration destinations: warmer winters, proximity to water, moderate tree cover, moderate population density, better human development index (HDI) scores—plus wildfire risks. In contrast, for the counties people left, common traits included low employment, higher income inequality, and more summer humidity, heatwaves, and hurricanes.

    Researchers note that Florida remained a top migration destination, despite a history of hurricanes—and increasing wildfire. While nationally, people were less attracted to counties hit by hurricanes, many people—particularly retirees—still moved to Florida, attracted by the warm climate, beaches, and other qualities shared by top migration destinations. Although hurricanes likely factor into people’s choices, the study suggests that, overall, the benefits of Florida’s desirable amenities still outweigh the perceived risks of life there, researchers say.

    “The decision to move is a complicated and personal decision that involves weighing dozens of factors,” said Clark. “Weighing all these factors, we see a general aversion to hurricane risk, but ultimately—as we see in Florida—it’s one factor in a person’s list of pros and cons, which can be outweighed by other preferences.”

    For the study, researchers combined census data with data on natural disasters, weather, temperature, land cover, and demographic and socioeconomic factors. While the study includes data from the first year of the COVID pandemic, the researchers plan to delve deeper into the impacts of remote work, house prices, and the cost of living.

    The study, “Flocking to Fire: How Climate and Natural Hazards Shape Human Migration Across the United States” is the largest investigation yet of how natural disasters and climate change impacted U.S. migration over the last decade.

    As global climate change progresses, the U.S. is expected to experience warmer temperatures, as well as more frequent and severe extreme weather events, including heat waves, hurricanes, wildfires and floods. Each year, these events cost dozens of lives and do billions of dollars worth of damage.

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  • Researchers propose new structures to harvest untapped source of freshwater

    Researchers propose new structures to harvest untapped source of freshwater

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    Newswise — An almost limitless supply of fresh water exists in the form of water vapor above Earth’s oceans, yet remains untapped, researchers said. A new study from the University of Illinois Urbana-Champaign is the first to suggest an investment in new infrastructure capable of harvesting oceanic water vapor as a solution to limited supplies of fresh water in various locations around the world.

    The study, led by civil and environmental engineering professor and Prairie Research Institute executive director Praveen Kumar, evaluated 14 water-stressed locations across the globe for the feasibility of a hypothetical structure capable of capturing water vapor from above the ocean and condensing it into fresh water – and do so in a manner that will remain feasible in the face of continued climate change.

    Kumar, graduate student Afeefa Rahman and atmospheric sciences professor Francina Dominguez published their findings in the journal Nature Scientific Reports.

    “Water scarcity is a global problem and hits close to home here in the U.S. regarding the sinking water levels in the Colorado River basin, which affects the whole Western U.S.,” Kumar said. “However, in subtropical regions, like the Western U.S., nearby oceans are continuously evaporating water because there is enough solar radiation due to the very little cloud coverage throughout the year.”

    Previous wastewater recycling, cloud seeding and desalination techniques have met only limited success, the researchers said. Though deployed in some areas across the globe, desalination plants face sustainability issues because of the brine and heavy metal-laden wastewater produced – so much so that California has recently rejected measures to add new desalination plants.

    “Eventually, we will need to find a way to increase the supply of fresh water as conservation and recycled water from existing sources, albeit essential, will not be sufficient to meet human needs. We think our newly proposed method can do that at large scales,” Kumar said.

    The researchers performed atmospheric and economic analyses of the placement of hypothetical offshore structures 210 meters in width and 100 meters in height.

    Through their analyses, the researchers concluded that capturing moisture over ocean surfaces is feasible for many water-stressed regions worldwide. The estimated water yield of the proposed structures could provide fresh water for large population centers in the subtropics.

    One of the more robust projections of climate change is that dry regions will get drier, and wet areas will get wetter. “The current regions experiencing water scarcity will likely be even drier in the future, exacerbating the problem,” Dominguez said. “And unfortunately, people continue moving to water-limited areas, like the Southwestern U.S.”

    However, this projection of increasingly arid conditions favors the new ocean vapor-harvesting technology.

    “The climate projections show that the oceanic vapor flux will only increase over time, providing even more fresh water supply,” Rahman said. “So, the idea we are proposing will be feasible under climate change. This provides a much needed and effective approach for adaptation to climate change, particularly to vulnerable populations living in arid and semi-arid regions of the world.”

    The researchers said one of the more elegant features of this proposed solution is that it works like the natural water cycle.

     “The difference is that we can guide where the evaporated water from the ocean goes,” Dominguez said. “When Praveen approached me with this idea, we both wondered why nobody had thought about it before because it seemed like such an obvious solution. But it hasn’t been done before, and I think it is because researchers are so focused on land-based solutions – but our study shows other options do, in fact, exist.”  

    The researchers said this study opens the door for novel infrastructure investments that can effectively address the increasing global scarcity of fresh water.

    The University of Illinois Urbana-Champaign, the Lovell Professorship in the department of civil and environmental engineering, The University Scholar Program and the National Science Foundation supported this research.

     

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  • Governments gather in Canada in bid to boost biodiversity

    Governments gather in Canada in bid to boost biodiversity

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    BOSTON — Amid warnings that biodiversity is in freefall, environmental leaders will gather in Montreal to hammer out measures aimed at shoring up the world’s land and marine ecosystems and coming up with tens of billions of dollars to fund these conservation efforts.

    Delegates from about 190 countries will assemble for nearly two weeks, starting Wednesday, at the United Nations Biodiversity Conference, or COP15, to finalize a framework for protecting 30% of global land and marine areas by 2030. Currently, 17% of terrestrial and 10% of marine areas are protected.

    The proposed framework also calls for reducing the rate of invasive species introduction and establishment by 50%, cutting pesticide use in half and eliminating the discharge of plastic waste.

    The goals — more ambitious than earlier ones that have mostly gone unmet — are expected to be at the heart of the meeting debate. But not far behind will be the issue of finance, with developing countries likely to push for significant monetary commitments before signing onto any deal.

    The draft framework calls for raising $200 billion or 1% of the world’s GDP for conservation by 2030. Another $500 billion annually would come from doing away with the politically-sensitive issue of subsidies that make food and fuel cheaper in many places.

    “The world is crying out for change, watching if governments seek to heal our relationship with the nature, with the planet,” Elizabeth Maruma Mrema, the executive secretary of the U.N. Convention on Biological Diversity, said at a November news conference. “The current state of biodiversity is dire with the loss of biodiversity at unprecedented levels in our history.”

    The United Nations conference comes less than a month after countries gathered to tackle climate change, agreeing for the first time to pay poor countries for the damage being caused by a warming planet.

    Climate change coupled with habitat loss, pollution and development have hammered the world’s biodiversity, with one estimate in 2019 warning that a million plant and animal species face extinction within decades — a rate of loss 1,000 times greater than expected. Humans use about 50,000 wild species routinely, and 1 out of 5 people of the world’s 7.9 billion population depend on those species for food and income, the report said.

    “We’re clearly losing biodiversity all around the world. Our ecosystems — that’s our forests, our grasslands, our wetlands, our coral reefs — are all degrading,” said Robert Watson, who has chaired past U.N. science reports on climate change and biodiversity loss. “We’re losing species; some are going extinct and others where the population numbers have even halved. We’re losing genetic diversity within species. So we’re clearly affecting biodiversity badly.”

    Brian O’Donnell, the director of the conservation group Campaign for Nature, noted how he had lived during a time of “climate stability and natural abundance” but fears that won’t be the same for his daughter and her generation.

    “We have to ask, ‘Will they be able to have well-functioning natural areas to sustain them? Will they benefit from what nature has given us — storm protection, pollination, clean water, food, abundant wildlife? Or will they face the remnants of a once thriving natural system?’” O’Donnell said.

    “Will the burden of climate breakdown and nature degradation be placed on the young people of the planet, the vulnerable, and the poor, those least responsible for creating the crises?” he asked.

    The challenge, though, will be convincing governments that they should do more to preserve and protect biodiversity and to follow through on their commitments. It will be especially challenging to make the case for cash-strapped developing countries who often need to spend money on more pressing concerns.

    “It would be a big deal if a lot of nations commit to 30%,” said Duke University ecologist Stuart Pimm, referring to the draft goal to protect 30% of the planet for conservation. President Joe Biden has already laid out a vision to conserve 30% of U.S. land and waters by 2030, and then-United Kingdom prime minister Boris Johnson pledged to protect 30% of its land by 2030.

    The track record of this convention is not great.

    Governments agreed to a set of targets back in 2010 but only six of the 20 were partially met by a 2020 deadline. Some experts argue delegates should be exploring why the world fell short on so many targets rather than setting even more ambitious ones.

    “You can agree inside your environmental bubble … and that’s probably what happened back in 2010,” U.N. Environment Program Executive Director Inger Andersen told The Associated Press. “But we actually need to have agriculture as part of the conversation. We need to have the financing system as part of the conversation.”

    Susan Lieberman, vice president of international policy at Wildlife Conservation Society, said part of the problem is that, so far, there hasn’t been “sufficient accountability and monitoring” of the goals.

    “It’s really important to put in place a monitoring framework,” she said. “Countries need to report. There needs to be accountability … and the targets need to be clear enough that governments can monitor and report on them.”

    Among the goals is to close the estimated $700 billion a year gap in what is spent on biodiversity. Part of the problem, U.S. Assistant Secretary of State Monica Medina said, is that the world not putting a sufficient price on nature.

    “We’re desperately trying to change people’s mindset about nature, and the fact that the things that we take for granted really aren’t free and we need to start actually accounting for their value and for the loss of their value … when development happens,” said Medina, who is leading the U.S. delegation at the conference.

    The funding hopes hinge heavily on whether countries reform their subsidies for industries that pollute or otherwise damage the natural world. Delegates face stiff opposition from parties, such as the fossil fuel sector, that would lose out if the reforms were enacted. Environmental ministers also have little influence over whether their countries take this risky step — one that’s been known to spark unrest and bring down governments.

    Watson, who has chaired past U.N. science reports, said reform is needed. “We need to get rid of subsidies. We need to draw down the subsidies on agriculture, fisheries, mining, energy, transportation, and we need to use that money for sustainable activities,” he said. “There’s probably over a trillion dollars a year in what we call direct subsidy, direct subsidies on fossil fuel, on fisheries, agriculture, etc. There’s also about $4 trillion of indirect subsidies.”

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    Associated Press science writer Christina Larson contributed to this report from Washington, D.C.

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    Follow Michael Casey in Twitter: @mcasey1

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    Associated Press climate and environmental coverage receives support from several private foundations. See more about AP’s climate initiative here. The AP is solely responsible for all content.

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  • Reliable planning tool for the emissions path to achieving the Paris temperature goal

    Reliable planning tool for the emissions path to achieving the Paris temperature goal

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    Newswise — The central aim of the Paris climate agreement is clear: Limiting man-made global warming to well below 2°C. This limit requires a reduction in greenhouse gas emissions to net zero. But what do the intermediate stages look like? How big should the reduction in emissions be within the next five, ten, or fifteen years? And which emissions path is being followed? There is no consensus on these issues between countries, which complicates the active implementation of the Paris Agreement.

    Researchers at the University of Bern have now developed a new method to determine the necessary reduction in emissions on a continuous basis. The main idea: Instead of complex climate models and scenarios, the observed relationship between warming and emissions is applied, and the reduction path is adapted repeatedly according to the latest observations. This new approach has just been published in the journal Nature Climate Change.

    A new calculation method for the emission reduction path

    To date, climate models have been used to calculate possible emissions pathways to the net zero goal. These pathways are based on scenarios including economic and social developments. “These calculations for the emission paths are subject to large uncertainties. This makes the decision-making more difficult and might be one reason why the promised reductions made by the 194 signatory countries to the Paris Agreement remain insufficient,” says lead author Jens Terhaar, explaining the background to the study. Like most of the other authors, Terhaar is a member of the Oeschger Center for Climate Change Research at the University of Bern.

    “Since the climate agreement actually aims at regulating temperature, we thought to specify an optimal emissions reduction path for this purpose which is independent of model-based projections,” continues Terhaar. According to this initial idea, a calculation method has emerged which is based exclusively on observation data: on the one hand, global surface temperatures in the past, and on the other hand, CO2 emissions statistics.

    The Paris Agreement calls for a stocktake of the necessary reductions in global emissions every five years. “The new Bern calculation method is ideally suited to support the stocktake mechanism of the Paris Agreement, as it enables the emission reductions to be recalculated regularly on an adaptive basis,” explains co-author Fortunat Joos of the Oeschger Center. For this purpose, a new algorithm has been developed which is known as the AERA (adaptive emissions reduction approach). In simple terms, the algorithm correlates CO2 emissions with rising temperatures, and is adjusted using a control mechanism. In this way, the current uncertainties in the interaction between these variables can be put aside.

    “Our adaptive approach circumvents the uncertainties, so to speak,” explains Fortunat Joos. “In the same way that a thermostat continuously adjusts the heating to the required room temperature, our algorithm adjusts the emission reductions according to the latest temperature and emissions data. This will allow us to approach a temperature goal, such as the 2°C goal, step-by-step and with specific interim goals.”

    Stronger emissions goals and effective implementation

    “The AERA method already confirms that international climate policy must be far more ambitious,” demands Terhaar. According to the Bern study, to achieve the 2°C goal, global CO2 emissions would have to fall by 7 percent between 2020 and 2025. They actually increased by approximately 1 percent in 2021 in comparison with 2020, though. According to the algorithm, limiting global warming to 1.5°C would require as much as a 27 percent reduction by 2025. “We need far stricter emissions goals than those to which nations have committed,” explains Thomas Frölicher, co-author of the study from the Oeschger Center, “and above all else, effective implementation of the goals.”

    The Researchers in Bern hope that the new calculation method will succeed in finding its way into international climate policy. “The AERA algorithm is already attracting a lot of interest in the climate research community, as it can also be applied to climate modelling,” explains Jens Terhaar. Until now, climate models with prescribed greenhouse gas concentrations have been used. This meant that at the end of the 21st century, the warming for a specific greenhouse gas concentration was very uncertain. When using the climate models with the AERA, however, emissions are continuously adjusted according to the calculated temperature and the intended temperature goal. On this basis, the model temperature is eventually stabilised at the intended level and all the models simulate the same warming, but with different emission pathways. “The AERA enables us to study impacts such as heat waves or ocean acidification for different temperature goals – such as 1.5°C versus 2°C versus 3°C – on a consistent basis and with state-of-the-art models,” explains Terhaar.

    Worldwide, 11 research groups have already started to apply the algorithm under the leadership of the University of Bern in order to study such impacts.

    Information about the publication:

    Jens Terhaar, Thomas L. Frölicher, Mathias T. Aschwanden, Pierre Friedlingstein, Fortunat Joos. Adaptive emission reduction approach to reach any global warming target, Nature Climate Change

    DOI: 10.1038/s41558-022-01537-9

    Oeschger Center for Climate Change Research

    The Oeschger Center for Climate Change Research (OCCR) is one of the strategic centers of the University of Bern. It brings together researchers from 14 institutes and four faculties. The OCCR conducts interdisciplinary research at the cutting edge of climate change research. The Oeschger Center was founded in 2007 and bears the name of Hans Oeschger (1927-1998), a pioneer of modern climate research, who worked in Bern.

    Further information: www.oeschger.unibe.ch

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    University of Bern

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  • Whole Ecosystem Warming Stimulates Methane Production from Plant Metabolites in Peatlands

    Whole Ecosystem Warming Stimulates Methane Production from Plant Metabolites in Peatlands

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    The Science

    Newswise — Scientists working at the ongoing Department of Energy’s (DOE) Spruce and Peatland Responses Under Changing Environments (SPRUCE) experiment use the site’s northern Minnesota bog as a laboratory. SPRUCE allowed scientists to warm the air and soil by zero to 9 degrees C above ambient temperatures to depths more than 2 m below ground. This warming simulates the effects of climate change on the carbon cycle at the whole ecosystem scale over the long term. The research found that the production of the potent greenhouse gas methane increased at a faster rate than carbon dioxide in response to warming. The results indicate that carbon dioxide release and methane production are stimulated by plants‘ release of metabolites, chemicals that plants create for protection and other functions.

    The Impact

    Soil carbon has accumulated over millennia in peatlands. These results demonstrate that peatlands’ vast, deep carbon stores are vulnerable to microbial decomposition in response to warming. This research suggests that as climate change causes peatland vegetation to have a greater proportion of vascular plants relative to mosses, peatlands will produce more methane and amplify their contribution to climate change.

    Summary

    Northern peatlands store approximately one-third of Earth’s terrestrial soil organic carbon due to their cold, water-saturated, acidic conditions, which slow decomposition. To study these soils, researchers leveraged the Spruce and Peatland Responses Under Changing Environments (SPRUCE) experiment, where they combined air and peat warming in a whole ecosystem warming treatment. The team included Georgia Institute of Technology, Florida State University, the University of Arizona, Pacific Northwest National Laboratory, Oak Ridge National Laboratory, Chapman University, the University of Oregon, and the U.S. Department of Agriculture Forest Service.

    The scientists hypothesized that warming would enhance the production of plant-derived metabolites, resulting in increased labile organic matter inputs to the surface peat, thereby enhancing microbial activity and greenhouse gas production. In support of this hypothesis, the researchers observed significant correlations between metabolites and temperature consistent with increased availability of labile substrates, which may stimulate more rapid turnover of microbial proteins. An increase in the abundance of methanogenic genes in response to the increase in the abundance of labile substrates was accompanied by a shift towards acetoclastic- and methylotrophic methanogenesis. The results suggest that peatland vegetation trends towards increasing vascular plant cover with warming will be accompanied by a concomitant shift towards increasingly methanogenic conditions and amplified climate-peatland feedbacks.

     

    Funding

    This material is based upon work supported by the DOE Office of Science, Office of Biological and Environmental Research program. A portion of this research was performed using the Environmental Molecular Sciences Laboratory, a DOE Office of Science User Facility at the Pacific Northwest National Laboratory. Metagenome sequence data were produced by the DOE Joint Genome Institute in collaboration with the user community.


    Journal Link: Proceedings of the National Academy of Sciences of the United States of America

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    Department of Energy, Office of Science

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