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Blog Climate Change Conservation Drinking water Educational Outreach Global Change Research Water

Virginia Water Center recognized as a national leader in water education and outreach

[vc_row][vc_column][vc_column_text]From VT News | February 24, 2020

For the first time, the Virginia Water Resources Research Center, housed at Virginia Tech, received a status of “outstanding” from the U.S. Department of the Interior. Virginia’s Water Center was one of 12 such centers in the nation to receive this designation.

“The water center operates as something of a clearinghouse and a focal point for water education, outreach, and research at Virginia Tech,” explained Professor Stephen Schoenholtz, director of the Virginia Water Center and a faculty member in the Department of Forest Resources and Environmental Conservation. “We’re an independent, nonsiloed place to foster and promote research on water issues across a wide range of areas.”

The Virginia Water Resources Research Center traces its origins to the federal Water Resources Research Act of 1964, which sought to establish research centers on matters related to water supply, water quality protection, and water resource management in all 50 states as well as the District of Columbia, Puerto Rico, the U.S. Virgin Islands, and Guam. Virginia Tech was selected to house the commonwealth’s center in 1965. The Virginia Water Resources Research Center was written into the Code of Virginia by the General Assembly in 1982 and is currently housed within Virginia Tech’s College of Natural Resources and Environment.

U.S. water centers and institutes that are part of the 1964 act receive funding in five-year cycles, and their output is evaluated by an independent panel of scientists from the U.S. Geological Survey. The most recent review, for the years 2011 through 2015, credited the program as having done an exemplary job of communicating water news and information to the broader public. The Virginia Water Resources Research Center was further praised for its focus on research aimed at solving state water issues.

“Engagement and outreach have been a big focus for our center over the last decade,” Schoenholtz said. “We aim to provide unbiased information for water resource management decisions that are being made at the state, regional, and national level.”

Among the center’s outreach efforts is a database of breaking water news stories, water-related legislation decisions and documents, and links to information about water-related subjects pertaining to the state. The center produces Virginia Water Radio, a weekly program focusing on a specific water issue or topic of interest in Virginia. The broadcasts are tied to the Virginia Standards of Learning and can be used in K-12 classrooms throughout the state.

The center provides seed grants for undergraduate and graduate students studying water resources and funds an internship program for undergraduate students at Virginia Tech. This spring, two interns traveled with Schoenholtz to Washington, D.C., to meet with federal policymakers to discuss water issues affecting Virginia. The center also led Virginia Tech in developing a unique undergraduate degree program in water: resources, policy, and management, which takes an interdisciplinary approach to water science, management, and policy.

Looking ahead, Schoenholtz would like to increase student training and expand grant opportunities for undergraduate and graduate students. Discussions are also underway about offering master’s and doctoral degrees in water science.

“Water issues range from very local, affecting individual households, to global scales that affect everyone, and those challenges are only going to increase in the face of climate change and growing population,” Schoenholtz noted. “With the Virginia Water Center, we have a wide range of possibilities to address these challenges while working to keep the public aware of the numerous resources available to them.”

Written by David Fleming

CONTACT:

Krista Timney
540-231-6157

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Categories
Blog Climate Change Conservation Global Change Research Water

Researchers seek to impact New Zealand water quality by understanding forest-water interactions

[vc_row][vc_column][vc_column_text]From VT News | February 7, 2020

Forest systems, a crucial resource for fresh water around the world, are under increasing pressure from global change factors like climate change, population growth, and land management decisions. To meet future demands for clean water, scientists need a clear understanding of the dynamics of water and nutrients in forest systems.

To broaden understanding of those systems, two faculty members in Virginia Tech’s College of Natural Resources and Environment are partnering with the New Zealand government-owned research entity Scion. They are undertaking an ambitious collaborative project that will utilize remote sensing technology, isotopic tracing, and manipulative field studies to develop a comprehensive model of water and nutrient flow through forested watersheds and streams.

“One of the big questions facing New Zealand is how climate change drivers and land use changes are going to affect ecosystem services,” explained Associate Professor Brian Strahm, of the Department of Forest Resources and Environmental Conservation. “There is a lot of uncertainty about what the future will look like. The broad purpose of this grant is to try to reduce some of that uncertainty and give the people of New Zealand confidence in their land use choices going forward.”

The five-year research project, called Forest Flows, will develop forest hydrology models to measure and predict the storage and release of water in forest catchments while simultaneously allowing scientists to collect data on nutrient cycling, with a particular emphasis on the export, utilization, and cycling of nitrogen.

“A major goal is to disentangle the soil and hydrologic processes controlling nutrient cycling and export from forested watersheds,” said Associate Professor Kevin McGuire, also of the Department of Forest Resources and Environmental Conservation and associate director of the Virginia Water Resources Research Center. “You can’t really look at the cycling of nitrogen at the watershed level without understanding how it’s transported and reacts within soil.”

To explore that question, researchers will use isotopic “tracers” in the water and in nitrogen to measure the movement of water and nutrients through a forest system.

“We’ll be using stable isotopes to track the movement of water and nitrogen through these systems,” Strahm said. “It’s a little like putting a flag or a tracker on a molecule of water or an atom of nitrogen and seeing where it goes through the environment.”

This research will build on their recent study published in the journal Water Resources Researchthat modeled hillslope water flow to estimate how natural systems behave in response to land use or climate changes. The research was carried out at the U.S. Forest Service’s Coweeta Hydrological Lab in North Carolina.

“The hillslope study is what got us in the ballgame with Scion,” Strahm said. “Our experimental hillslope is tightly controlled, which allows us to do very specific manipulations of precipitation. We can basically make our own rain or alter nitrogen availability in that system. Scion would like us to build on that kind of work, adjusting those experimental variables so that they are relevant to the future of New Zealand.”

Recognized as a global leader in forest hydrological research in the 1970s and 1980s, New Zealand has experienced a significant land use shift from forestry to cattle and dairy. As a result of that shift, and as climate change threatens more periods of flooding and drought, there is increasing attention on the ways that land management decisions will impact water quality in the future.

“New Zealand wants to understand this challenge at the scale of their nation, so that they can better understand how independent land management decisions will scale up to impact water quality moving ahead,” Strahm said. “They want to be prepared to deal with future climate change drivers and make sure that their land use decisions are compatible with their social and cultural values.”

While the project is focused on the unique challenges of New Zealand forest watersheds, both professors, who are affiliated faculty members of the Global Change Center housed under Virginia Tech’s Fralin Life Sciences Institute, noted that this research has both local and global implications.

“The issues we’re looking at in New Zealand are applicable anywhere,” McGuire said. “Here in Virginia, most of our drinking water originates in forested watersheds. What happens in those forests and how water is used has huge implications for water quality and availability.”

The project’s total grant amount of approximately $9 million (NZ$13,736,775) is funded to Scion by the New Zealand Ministry of Business, Innovation, and Employment. Virginia Tech’s subcontract from Scion will include support for a student researcher to participate in the project.

-Written by David Fleming

 

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Biodiversity Blog Climate Change Conservation Global Change Habitat Loss Pollution Research Water

Bye-bye mayfly: Can the burrowing mayfly’s decline serve as a warning system for the health of our environment?

[vc_row][vc_column][vc_column_text]From VT News | February 6, 2020

Sally Entrekin Field
Sally Entrekin samples a stream in search of aquatic insects, including mayfly nymphs.

 

Mayflies have long been indicators of the ecological health of the lakes, rivers, and streams. The more mayflies present in water, the better the water quality.

But scientists from Virginia Tech and the University of Notre Dame recently discovered that a particular species — the burrowing mayfly — had a population decrease of nearly 84 percent from 2015 to 2019. The measurements, using radar, took place during the annual insect emergence events at Lake Erie, when the transition of almost 88 billion insects moving from the waterways to the air marks one of world’s largest annual insect emergence events.

Although it was previously impossible to analyze the emergence of the burrowing mayfly, researchers were finally able to do so by using meteorological radar data and new methods in tracking the presence of airborne creatures. By observing the swarms on a year-to-year basis, the data showed a shockingly simple trend: over the same timeframe and time of year, the mayfly swarms are growing smaller.

“This refined radar technology that allows for tracking and quantifying aquatic insect populations at such a large scale is instrumental in understanding land-water connections,” explained Sally Entrekin, an associate professor in the Department of Entomology in the Virginia Tech College of Agriculture and Life Sciences.

The finding speaks to more than just the mayfly’s decline: It highlights the growing problem of insect decline and the cascading effects that has on ecosystems around the world.

“Radar technology — coupled with traditional field sampling — can start to address the scope and magnitude of insect declines from global change in aquatic ecosystems,” said Entrekin.

Entrekin and her colleagues, Phil Stepanian, Charlotte Wainwright, Djordje Mirkovic, Jennifer Tank, and Jeffrey Kelly, recently published their findings in the Proceedings in the National Academy of Sciences.

The emergence is visually spectacular (where the skies are darkened by the shear mass of flying insects), but this event also represents a new availability of food for many creatures throughout the food chain, providing more than 3,000 tons of insects for consumption by birds and other land-based plants and animals.

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An adult burrowing mayfly. Image credit (also header image): Whitney Cranshaw, Colorado State University, Bugwood.org

 

Fish, birds, bats, and other animals consume the mayflies as a source of food and nutrients. Some insect-eating birds in these areas have synchronized breeding habits that coincide with mayfly emergence, and they rely on them as a high-quality food source for their young. These bird populations have also taken a downturn, which has been partially attributed to the lack of insects to eat, particularly aquatic insects.

Historically, negative human impacts on mayfly habitat has led to reductions and disappearances of the mayfly swarms. While conservation and habitat rehabilitation have helped to clean up the waterways and bring back the mayflies, in the Mississippi, Ohio, and Illinois rivers, as well as Lake Erie, efforts to bring back the mayfly swarms took nearly 20 years to reach their previous levels. As the research shows, it appears the swarms are once again declining.

Multiple stressors in these waterways attributed to human activity could be a reason for the reduction in mayfly populations. A warming climate puts more stress on certain aquatic environments, leading to decreased oxygen levels, which can result in fewer mayflies coming out of the water. Runoff from rivers into the warmer surface waters of Lake Erie, for instance, can cause algae blooms, which release toxins that these mayflies are especially susceptible to.

Another type of runoff from agricultural land carries commonly applied pesticides, particularly neonicotinoids, which can kill mayflies as immatures in the water. Even when these pesticides are present in nondeadly levels, they can negatively affect mayfly young by stunting their ability to reach adult stage. Many of these factors likely contribute to the decreasing mayfly populations, and policy and conservation efforts will be needed in order to change this trend.

Global insect population decline is an emerging topic that has sparked public awareness, however there are logistical challenges to analyzing these trends. Monitoring the life-cycle of the burrowing mayfly and other aquatic insects offers an early warning system for changes in our ecosystems.

This monitoring system is also applicable in other parts of the world where large aquatic emergence events occur, and it can be useful in pinpointing regions that would benefit from waterway conservation efforts or ecological rehabilitation efforts. With the impact the climate crisis is having on ecosystems, tracking the emergence of certain aquatic insects could serve to motivate and inform the public as to the effect humans are having on their local waterways.

 

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Sally Entrekin and her lab on a collecting trip

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Categories
Biodiversity Blog Conservation Food & Agriculture Global Change Research Sustainable Agriculture

VT testing bee-friendly forage for cattle

[vc_row][vc_column][vc_column_text]From VT News | February 5, 2020

The “fescue belt” stretches 1,000 miles across the southeastern United States, from Virginia and the Carolinas in the east to Kansas and Oklahoma in the west. It’s named for its predominant grass, tall fescue, which feeds millions of beef cattle over of thousands of farms and ranches.

Tall fescue was planted widely in the southeast in the mid-20th century because it’s a hardy grass, resistant to drought and cold, which makes it perfect to feed cattle during the winter and spring. But it harbors a fungus that can cause health problems in cattle, especially during the hot summer. And it’s an invasive species, native to Europe, that can crowd out wildflowers and other native plants, which could be contributing to the decline in the population of bees and other pollinating insects.

A new study led by Megan O’Rourke, an associate professor in the School of Plant and Environmental Sciences in the College of Agriculture and Life Sciences at Virginia Tech, will address both of these problems. The research team will plant native prairie grasses and wildflowers in pastures at research stations in Virginia and Tennessee, and on six on-farm sites in Northern Virginia, including on Thomas Jefferson Foundation farmland.

“We’re trying to transform the landscape to support both cattle and pollinators by planting more native wildflowers on farmland,” said O’Rourke, an affiliate of the Global Change Center.

The $1.8 million project is funded half by a federal grant and half by contributions of time, land, cattle and money by Virginia Tech, the University of Tennessee, farmers working with the researchers, and a nonprofit called Virginia Working Landscapes. The team will test 20 different wildflowers native to Virginia and Tennessee and will measure which ones attract the most bees and, when planted alongside native grasses, produce the healthiest cattle. The grant was awarded in December, and the work is getting underway in early 2020.

In December, the National Resources Conservation Service of the U.S. Department of Agriculture awarded $12.5 million to 19 different research projects studying various aspects of conservation on agricultural lands; the bees-and-beef study is one of four studies that will be conducted partly or wholly in Virginia, under grants totaling $2.3 million. The bees-and-beef grant is part of a broad effort by the federal government to study and combat the ongoing decline in bee populations.

O’Rourke is one of five Virginia Tech faculty members working on the study. Another is Ben Tracy, a Virginia Tech professor of grassland ecology and Virginia Cooperative Extension specialist who has been studying native prairie grasses and the effects of tall fescue on cattle for the past 15 years or so.

“The main health problem that fescue causes for cattle, fescue toxicosis, is not fatal, but it probably costs the cattle industry millions of dollars a year,” Tracy said. Affected cattle have trouble regulating their body temperatures in hot weather and they don’t eat as much and gain as much weight as healthy cattle. “Hopefully, adding native grasses and wildflowers to pastures will reduce fescue toxicosis.”

If this study succeeds, adding native wildflowers to pastures in the fescue belt will become a new conservation practice that USDA’s National Resource Conservation Service will cost share.

“If we can find a way, we can improve resources for pollinators and also improve livestock performance,” Tracy said. “It would be a win-win for the environment and for beef cattle producers.”

—Written by Tony Biasotti

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Categories
Blog Conservation Global Change Research Sustainable Agriculture

GCC affiliate Luis Escobar contributes to international report on health and climate change

[vc_row][vc_column][vc_column_text]From VT News | January 30, 2020

A child born today will experience a world 4 degrees warmer than the pre-industrial average. This seemingly small variable will have significant impacts on global health outcomes in the future.

To understand the scale and breadth of those outcomes and to offer solutions for countries most affected by climate change, The Lancet medical journal has recently published the 2019 Lancet Countdown. This report presents the findings and provides a collaborative perspective from 35 universities, institutions, and agencies on how climate change will influence human health.

Luis Escobar, assistant professor of disease ecology in the College of Natural Resources and Environment and an affiliate of the Global Change Center housed under Virginia Tech’s Fralin Life Sciences Institute, was a contributor to the report.

“The goal of the Lancet Countdown is to have a consortium of universities and institutions tackle a specific problem,” said Escobar, a faculty member in the Department of Fish and Wildlife Conservation. “We want to demonstrate not only the linkages between climate change and human health, but also provide some guidance about what can be done to limit those impacts.”

Escobar’s research focuses on infectious diseases, a human health challenge that is projected to be significantly impacted by climate change. Escobar said that there is a direct correlation between temperature rise and an increase in infectious disease outbreaks. He noted that this year’s Lancet report was able to take a unique approach to considering that correlation for several diseases.

“In previous studies, we’ve worked to see how climate change is going to impact water-borne diseases going forward,” he said. “This time, we looked to the past. We’ve been studying how environmental conditions have changed over the last two decades and how temperature increase is leading to more adverse outcomes.”

The 2019 Lancet Countdown made five key policy recommendations for countries: the reduction of greenhouse gas emissions, a commitment to ending reliance on fossil fuels, investments in infrastructure to support active lifestyles for people, investment in better monitoring of how climate change is impacting health outcomes, and a strengthening of health care systems.

While those solutions represent a global view of the challenges of climate change, Escobar said that it is easy to find local examples of these impacts.

“Virginia is the oyster capital of the Mid-Atlantic region,” he explained. “Oysters filter the water, which makes them potential carriers of water-borne diseases in the food chain. As climate change threatens aquatic ecosystems, there is a risk of an increase in water-borne pathogens that could contaminate oysters, and, in turn, infect people that consume them, which will result in tremendous damage for the oyster industry.”

Escobar said that the Lancet Countdown report reflects the necessity of having a broad vision when it comes to considering the challenges that a warming planet will bring. He also indicated that a goal of the Lancet Countdown is to change the narrative about climate change.

“We should stop talking about whether or not climate change is happening,” he said. “There is overwhelming evidence of climate change and climate change impacts around the world, and it is time to focus our efforts on demanding action from local and federal governments.”

Escobar noted that the Global Change Center plays a crucial role in helping Virginia Tech researchers and students connect local concerns with broader challenges taking place around the world.

“The Global Change Center allows us to develop local research and thinking on a global scale,” he said. “Questions of how climate change can impact the population of salamanders in the Appalachian Mountains, or how rising sea temperatures could affect coastal areas in Virginia can help researchers see the broader picture of climate change. The center, and my department at Virginia Tech, have both been catalysts in helping me position my science on climate change and health in the international discussion.”

— Written by David Fleming

 

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Categories
Blog Climate Change Conservation Disease Drinking water Evolution Faculty Spotlight Food & Agriculture Global Change Research

The GCC welcomes seven new faculty affiliates

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Meet our newest faculty affiliates:

 

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Dr. Cully Hession

Professor, Department of Biological Systems Engineering

Research focus: His lab focuses stream channel structure and sediment dynamics, influence of human activities on streams, techniques for measuring and improving in-stream habitat, and development of technologies and strategies for successful stream restoration.  Current research focuses on using drones and drone-based lidar to map riverscapes and tracer studies to better understand sediment transport and fate. Dr. Hession is also PI/co-Director of an interdisciplinary research and extension training program called “Training Future Leaders to Solve Resource Challenges at the Confluence of Water and Society.”[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_separator style=”shadow”][/vc_column][/vc_row][vc_row][vc_column width=”1/2″][vc_single_image image=”47579″ img_size=”275×355″ style=”vc_box_border”][/vc_column][vc_column width=”1/2″][vc_column_text]

Dr. Florian Zach

Assistant Professor, Deparment of Hospitality & Tourism Management

Research interests:  Dr. Zach is interested in strategic issues that support the sustainable development of tourism destinations. He has investigated the inter-organizational collaboration and networks to understand how destination stakeholders collectively develop tourism innovations. Additionally, he works with colleagues to understand human-computer interaction issues stemming from the use of cutting-edge technologies in the context of tourism. Current projects include exploring the effects of summer adventure parks built by ski resorts in the Austrian Alps as a response to shorter winter and longer summer seasons and also the impacts of the 2018 Florida Red Tide on hotel & short-term rentals (Airbnb & similar).[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_separator style=”shadow”][/vc_column][/vc_row][vc_row][vc_column width=”1/2″][vc_single_image image=”47688″ img_size=”275×355″ style=”vc_box_border”][/vc_column][vc_column width=”1/2″][vc_column_text]

Dr. J. Leighton Reid

Assistant Professor, School of Plant & Environmental Sciences

Research interests: Dr. Reid’s research interests encompass tropical forest restoration in Latin America and Madagascar as well as temperate forest, woodland, and grassland restoration in the eastern United States. Specifically, he investigates how local restoration interventions interact with their surrounding landscape to affect biodiversity recovery, how keystone plant species can be used to catalyze ecological succession, why some restored ecosystems persist much longer than others, and what soil and environmental factors limit the recolonization of rare plants in regenerating ecosystems.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_separator style=”shadow”][/vc_column][/vc_row][vc_row][vc_column width=”1/2″][vc_single_image image=”47595″ img_size=”275×355″ style=”vc_box_border”][/vc_column][vc_column width=”1/2″][vc_column_text]

Dr. Rachel Reid

Research Scientist, Department of Geosciences

Research interests: Dr. Reid is a paleoecologist interested in how disturbances, such as climate and environmental change, impact species, ecosystems, and their interactions over a range of timescales. As a Research Scientist at Virginia Tech, Dr. Reid runs the Stable Isotope Laboratory.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_separator style=”shadow”][/vc_column][/vc_row][vc_row][vc_column width=”1/2″][vc_single_image image=”47396″ img_size=”275×355″ style=”vc_box_border”][/vc_column][vc_column width=”1/2″][vc_column_text]

Dr. Theo Lim

Assistant Professor, Department of Urban Affairs & Environmental Planning

Research interests: Dr. Lim’s research focuses on the environmental planning of linked land, water, infrastructure, and social systems. His interests include urban hydrology, distributed stormwater practices, community green infrastructure, energy planning in agricultural and rural settings, land development impacts on the hydrological cycle, and applications of data science in urban & environmental planning.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_separator style=”shadow”][/vc_column][/vc_row][vc_row][vc_column width=”1/2″][vc_single_image image=”47637″ img_size=”275×355″ style=”vc_box_border”][/vc_column][vc_column width=”1/2″][vc_column_text]

Dr. Ben Gill

Associate Professor, Department of Geosciences

Research interests: Dr. Gill specializes in reconstructing the present and past chemical cycles on our planet. He leads the Biogeochemistry Laboratory Group at Virginia Tech. The main research focus of his group concerns understanding the connections between major changes in the environment (oxygenation/deoxygenation oceans, climatic warming and cooling, etc.) and major events in the history of life (originations, diversifications and mass extinctions).[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_separator style=”shadow”][/vc_column][/vc_row][vc_row][vc_column width=”1/2″][vc_single_image image=”47465″ img_size=”275×355″ style=”vc_box_border”][/vc_column][vc_column width=”1/2″][vc_column_text]

Dr. James Weger-Lucarelli

Research Assistant Professor, Department of Biomedical Sciences & Pathology

Research interests: Dr. Weger-Lucarelli’s research focuses on understanding viral and host determinants that mediate disease severity, transmission, evolution, and protection against mosquito-borne viruses. The Weger-Lucarelli lab uses molecular, virological, and computational methods to study these interactions, with the goal to recognize and study emerging viral threats before they product massive outbreaks.  He is also working to produce innovative vaccines to prevent mosquito-borne viral disease.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_separator style=”shadow” border_width=”5″][/vc_column][/vc_row]

Categories
Blog Conservation Faculty Spotlight Global Change Invasive Species News Research

Scott Salom’s research on biological control of the hemlock wooly adelgid highlighted in Science

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January 20, 2020

GCC affiliate Dr. Scott Salom is a professor in the department of Entomology at Virginia Tech whose research focuses on forest entomology and biological control. For more than two decades, he has studied tactics and strategies to manage the damaging hemlock wooly adelgid.  These tiny insects, native to Japan, suck the sugars from hemlock needles, eventually killing the trees.  Salom has been testing whether a predatory beetle might aid in controlling the wooly adelgid population; his research on this was recently highlighted by Science. 

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Categories
Blog Conservation Global Change Research Sustainable Agriculture

New research finds ranchers consider diverse factors in managing their land

[vc_row][vc_column][vc_column_text]From VT News | January 14, 2020

Wetlands in the Intermountain West, a region nestled between the Rocky Mountains, the Cascade Range, and the Sierra Nevada, are home to a diverse range of flora and fauna. Wetlands may only make up two percent of the region, but 80 percent of wildlife rely on the rich habitat they provide. The majority of these wetlands are located on private ranchlands. While the persistence of these “working wetlands” depends on the management decisions of ranchers, their perspectives are often missing from conservation and policy-making discussions.

In a new study published in Rangeland Ecology and Management, Ashley Dayer, an assistant professor in the Department of Fish and Wildlife Conservation in the College of Natural Resources and Environment at Virginia Tech, explores the diverse factors that influence how ranchers manage their land.

In collaboration with the Intermountain West Joint Venture, an organization committed to bird habitat conservation by fostering public-private partnerships, and the University of Montana, Dayer and her graduate student Mary Sketch (M.S. ’18)  hosted two landowner-listening workshops, one in southern Oregon and another in southwestern Wyoming, and invited various landowners and conservation professionals to encourage dialogue between the two parties. Partners for Conservation, a landowner-led conservation organization, played a key role in successful implementation of the workshops.

“In order to have effective conservation in the west, where ranchers own huge tracts of land, the conservation community is keen to work together with them. Ranchers can make choices to manage their land for the benefits of wildlife or they can make choices that don’t prioritize wildlife,” said Dayer, an affiliated faculty member of the Global Change Center, housed within the Fralin Life Sciences Institute. “We aimed to facilitate a better understanding of how conservation professionals could work with ranchers toward conservation and wildlife management goals.”

The relationships between conservationists and ranchers can be complicated. People are quick to assume that ranchers are solely concerned with profit, but Virginia Tech researchers find that ranchers’ decisions are more complex than that. This complexity needs to be taken into consideration when developing programs and policies to foster private lands conservation.

“The workshops created an open, trusting space where there was social learning and social exchange happening. It was important for ranchers to know the researchers and the conservation professionals alike were there to hear them,” said Mary Sketch, who was the lead author on this paper and another previously published in Society and Natural Resources on the method itself.

Dayer and Sketch evaluated the complex decision-making process of how ranchers choose to manage their land, more specifically how they choose to irrigate their land and why. They found that various reasons go into deciding how land is managed — not just money.

“Our project was able to add nuance to that understanding; there is a lot more to it,” said co-author Alex Metcalf, a social scientist and assistant professor in the W.A. Franke College of Forestry and Conservation at the University of Montana. “Yes, ranchers have to meet the bottom line because they have to make sure they have food on the table, but other concerns and considerations are at play in the choices that they make for their lands.”

This study specifically focused on choices about flood irrigation — a traditional method involving complex ditch systems that spread water across a field, recharging areas once sustained by natural flooding. When the water flows from the ditches, saturates the field, and seeps into the groundwater, it provides forage for cattle to graze on while providing rich habitat for migrating and breeding waterbirds, like ducks and cranes, as well as sage-grouse, an iconic ground-dwelling bird in decline.

“Flood irrigation is often vilified for not being water efficient. The numbers don’t always add up when it comes to saving water because there’s so much more in the game of land management and conservation, like creating wildlife habitat. This traditional definition of efficiency doesn’t grasp that social-ecological complexity,” Sketch said. “Our work suggests an expanded definition that considers how flood irrigation provides bird habitat on working wet meadows, recharges the groundwater for communities downstream, creates in-stream flow for fish, and keeps ranchers ranching.”

Local ranchers speak with partners
Local ranchers speak with partners. Photo courtesy of Intermountain West Joint Venture.

Ranchers described the factors that either help or hinder the use of flood irrigation on private lands. The study identified cultural considerations as a key enabler for continuing flood irrigation. “Ranchers have strong ties with the ranching lifestyle, so many choose to continue flood irrigation because of its history and their personal connection to it,” explained Sketch. “It’s something they do every year, the generation of ranchers before them did it, and want to maintain that tradition.”

“What stands out to me in this work is that there are a group of ranchers committed to the future of their land. They rely on that land for their livelihood; they’re closely tied to it; they spend every day outside. It’s something that they’re very passionate about,” Dayer said. “I think that’s just a critical thing for the majority of the U.S. public living far from ranches to keep in mind — our food isn’t just coming from grocery stores. It’s coming from people who are making choices about how land is used and whether to contribute to conservation.”

Despite the commitment of ranchers to their land, nearly half of all U.S. ranches are sold every decade and recruitment of younger generations into the ranching lifestyle has declined. Most of these once-open spaces have been lost to subdivisions and other development. Land conversion not only erodes the sense of community and cultural identity among ranchers, it also eliminates important wildlife habitat.

To keep ranches both environmentally and economically sustainable, both workshops highlighted key areas where conservation professionals can increase rancher engagement and ensure working wetlands continue to benefit both landowners and wildlife. Ranchers identified partnerships and open communications with conservation professionals and policymakers as critical to maintaining successful operations in addition to effective, long-lasting conservation practices. Central to strong partnerships is building trust and “honest people sitting around, getting over their biases, their agendas, and listening to one another,” said one rancher.

The Intermountain West Joint Venture has a long history of working alongside landowners and conservationists and has become trusted in the region. Their connections, experiences, and on-the-ground work proved valuable in executing the research. As a result, Dayer and Sketch were better able to understand ranchers’ experiences and perspectives. The joint venture is also now playing a critical role in ensuring the results of this study are used.

“This research is ground-breaking in that it helps conservation professionals understand the social context of agricultural irrigation decision-making in the West,” said Dave Smith, Intermountain West Joint Venture coordinator. “The findings will enable the conservation community to increasingly support agricultural irrigators in continuing to provide vital habitat for wetland-dependent birds on working lands.”

Listening turned out to be an effective conservation tool, and Dayer and Sketch hope that this work continues to change how conservation professionals and ranchers work together.

—   Written by Rasha Aridi

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Blog Climate Change Conservation Faculty Spotlight Global Change Grants Habitat Loss

Scientists using collaborative NSF grant to understand hydrologic controls on carbon processes in wetlands

[vc_row][vc_column][vc_column_text]From VT News | November 22, 2019

Wetlands play an important role in the carbon cycle, aiding in the storage and distribution of this crucial energy resource. Now a collaborative grant from the National Science Foundation will allow scientists to research the linkages between hydrological and carbon dynamics taking place in forested wetlands to better understand the role that these ecosystems plays in the export, storage, and emission of carbon.

“Wetlands are productive ecosystems, generating large amounts of vegetation biomass; at the same time, they also receive leaf fall and other carbon inputs from adjacent upland areas,” explained Daniel McLaughlin, assistant professor in Virginia Tech’s College of Natural Resources and Environment and principal investigator for the grant.

“They can then store that carbon in organic soil, emit it as carbon dioxide or methane, or export it as dissolved organic carbon to downstream waters, where it will contribute to aquatic food webs,” he continued. “While these wetland carbon processes are well recognized, less is known regarding how they are regulated by water storage and exchange within networks of multiple, interacting wetlands.”

With wetlands under threat from land use changes, it is crucial for scientists to understand how hydrology influences wetland carbon export and emissions in order to strengthen efforts to conserve and restore wetland ecosystems.

To that end, Virginia Tech scientists will be working in collaboration with researchers from the University of Maryland and the University of Alabama to study isolated wetlands in the Delmarva Peninsula area of Maryland.

“We’re focused on a particular type of wetland in the Delmarva Peninsula called Delmarva bays,” said McLaughlin, a faculty member in the Department of Forest Resources and Environmental Conservation and an affiliate of the Virginia Water Resources Research Center. “These depressional wetlands are small and geographically isolated, dotting the Delmarva landscape.”

“This particular wetland-rich landscape is a good representation of other regions where small wetlands dominate, interact, and have a cumulative effect on landscape-scale water and carbon cycling. Our work hopes to broadly inform wetland management in Delmarva and in other wetland-rich regions,” he added.

Co-principal investigator Erin Hotchkiss, assistant professor in the Department of Biological Sciences in Virginia Tech’s College of Science, said that the project will use methods and knowledge from multiple disciplines to provide a comprehensive understanding of wetland dynamics.

“I’m excited this project includes collaborators whose strengths are in hydrology, ecology, and biogeochemistry,” said Hotchkiss, an affiliate of the Global Change Center housed in the Fralin Life Sciences Institute. “These fields have great potential to inform one another, but we don’t often collaborate across disciplines. This project is an exciting opportunity to understand how water and carbon move through wetland landscapes through multiple research angles.”

The project will use state-of-the-art sensors to collect data, making simultaneous measurements of water storage and water exchange, dissolved organic carbon, and CO2 and CH4 emissions. These sensors will allow researchers to gather high-frequency measurements that will capture the relationship between carbon processes and wetland hydrology in real time.

Co-principal investigator Durelle Scott, associate professor in Virginia Tech’s Department of Biological Systems Engineering, which is in both the College of Agriculture and Life Sciences and the College of Engineering, said that this effort has broader ramifications for reducing the amount of carbon in the atmosphere.

“When we restore wetlands, we’re often focused on restoring the hydrology and the habitat, but it’s important to also consider wetlands as a place for carbon sequestration,” said Scott, also an affiliate of the Global Change Center. “Our work will help inform the practice of restoration so these efforts can be strategic and holistic in terms of taking into account all of the variables we have to consider for successful outcomes.”

Grant funding from the National Science Foundation’s Division of Environmental Biology totaling almost $1 million is split between Virginia Tech and the University of Maryland.

— Written by David Fleming

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Blog Climate Change Conservation Faculty Spotlight Global Change Habitat Loss

Using data to predict the future of ecosystems

[vc_row][vc_column][vc_column_text]From VT News | November 13, 2019

Through its Data + Decisions Destination Area, Virginia Tech inventively interweaves data science into its curriculum. Meet a faculty member using data in novel and world-changing ways.

During the 21st century, citizens around the world will continue to face grand environmental challenges, including climate change, land use, and invasive species. How we deal with and adapt to these ecological challenges will have global implications.

Associate Professor Quinn Thomas of the College of Natural Resources and Environment is a quantitative ecosystem ecologist using data to tackle these issues. His research focuses on understanding how forests and other ecosystems will respond to global environmental change. By harnessing the power of supercomputers, he is able to combine decades of field observations with mathematical models to forecast how forests will grow in the future.

He’s also leading a team of researchers who will be creating a new Ecological Forecasting Initiative Research Coordination Network, funded by a grant from the National Science Foundation, which will bring together scientists, government officials, and stakeholders working on environmental issues.

“The end goal is to think about ecological forecasting like weather forecasting. It’s a tool used in decision-making and we want people to be able to rely on it,” said Thomas, a faculty member in the Department of Forest Resources and Environmental Conservation and a Global Change Center affiliate. “Unlike a long-range climate change model, ecological forecasting models are deliberately built on shorter time scales — daily to decadal, for instance — to help people understand changes and act now.”


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