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Erratum: Upcyclingphosphorus Recovered From Anaerobically Digesteddairy Manure To Support Production Of Vegetables And Flowers (Sustainability 2020, 12, 1139), Katherine K. Porterfield, Robert Joblin, Deborah A. Neher, Michael Curtis, Steve Dvorak, Donna M. Rizzo, Joshua W. Faulkner, Eric D. Roy Dec 2020

Erratum: Upcyclingphosphorus Recovered From Anaerobically Digesteddairy Manure To Support Production Of Vegetables And Flowers (Sustainability 2020, 12, 1139), Katherine K. Porterfield, Robert Joblin, Deborah A. Neher, Michael Curtis, Steve Dvorak, Donna M. Rizzo, Joshua W. Faulkner, Eric D. Roy

Rubenstein School of Environment and Natural Resources Faculty Publications

The authors would like to make the following correction for the published paper [1]. The changes are as follows: (1) Replacing Figure 4 (Figure presented).


Healthy Diets Can Create Environmental Trade-Offs, Depending On How Diet Quality Is Measured, Zach Conrad, Nicole Tichenor Blackstone, Eric D. Roy Dec 2020

Healthy Diets Can Create Environmental Trade-Offs, Depending On How Diet Quality Is Measured, Zach Conrad, Nicole Tichenor Blackstone, Eric D. Roy

Rubenstein School of Environment and Natural Resources Faculty Publications

Background: There is an urgent need to assess the linkages between diet patterns and environmental sustainability in order to meet global targets for reducing premature mortality and improving sustainable management of natural resources. This study fills an important research gap by evaluating the relationship between incremental differences in diet quality and multiple environmental burdens, while also accounting for the separate contributions of retail losses, inedible portions, and consumer waste. Methods: Cross sectional, nationally-representative data on food intake in the United States were acquired from the National Health and Nutrition Examination Survey (2005–2016), and were linked with nationally-representative data on food …


Covid-19 Impacts On Food Security And Systems: A Third Survey Of Vermonters, Meredith T. Niles, Emily H. Belarmino, Farryl Bertmann Nov 2020

Covid-19 Impacts On Food Security And Systems: A Third Survey Of Vermonters, Meredith T. Niles, Emily H. Belarmino, Farryl Bertmann

College of Agriculture and Life Sciences Faculty Publications

This brief report highlights the findings from a third survey of Vermonters since COVID-19. We surveyed 600 Vermonters, representative on Vermont demographics on race, ethnicity and income in August and September 2020. We find that nearly 30% of Vermont respondent households were food insecure between March and September, with households experiencing a job disruption, households with children, and respondents without a college degree at greater odds for food insecurity. One-third of respondents used some type of food assistance program since the onset of the COVID-19 pandemic. Concerns about food access and challenges had largely gone down, on average since March …


Mobilizing Crop Biodiversity, Susan Mccouch, Zahra Katy Navabi, Michael Abberton, Noelle L. Anglin, Rosa Lia Barbieri, Michael Baum, Kirstin Bett, Helen Booker, Gerald L. Brown, Glenn J. Bryan, Luigi Cattivelli, David Charest, Kellye Eversole, Marcelo Freitas, Kioumars Ghamkhar, Dario Grattipaglia, Robert Henry, Maria Cleria Valadares Inglis, Tofazzal Islam, Zakaria Kehel, Paul J. Kersey, Graham J. King, Stephen Kresovich, Emily Marden, Sean Mayes, Marie Noelle Ndjiondjiop, Henry T. Nguyen, Samuel Rezende Paiva, Roberto Papa, Peter W.B. Phillips, Awais Rasheed Oct 2020

Mobilizing Crop Biodiversity, Susan Mccouch, Zahra Katy Navabi, Michael Abberton, Noelle L. Anglin, Rosa Lia Barbieri, Michael Baum, Kirstin Bett, Helen Booker, Gerald L. Brown, Glenn J. Bryan, Luigi Cattivelli, David Charest, Kellye Eversole, Marcelo Freitas, Kioumars Ghamkhar, Dario Grattipaglia, Robert Henry, Maria Cleria Valadares Inglis, Tofazzal Islam, Zakaria Kehel, Paul J. Kersey, Graham J. King, Stephen Kresovich, Emily Marden, Sean Mayes, Marie Noelle Ndjiondjiop, Henry T. Nguyen, Samuel Rezende Paiva, Roberto Papa, Peter W.B. Phillips, Awais Rasheed

College of Agriculture and Life Sciences Faculty Publications

No abstract provided.


Modeling The Influence Of Public Risk Perceptions On The Adoption Of Green Stormwater Infrastructure: An Application Of Bayesian Belief Networks Versus Logistic Regressions On A Statewide Survey Of Households In Vermont, Qing Ren, Asim Zia, Donna M. Rizzo, Nancy Mathews Oct 2020

Modeling The Influence Of Public Risk Perceptions On The Adoption Of Green Stormwater Infrastructure: An Application Of Bayesian Belief Networks Versus Logistic Regressions On A Statewide Survey Of Households In Vermont, Qing Ren, Asim Zia, Donna M. Rizzo, Nancy Mathews

College of Engineering and Mathematical Sciences Faculty Publications

There is growing environmental psychology and behavior literature with mixed empirical evidence about the influence of public risk perceptions on the adoption of environmentally friendly “green behaviors”. Adoption of stormwater green infrastructure on residential properties, while costlier in the short term compared to conventional greywater infrastructure, plays an important role in the reduction of nutrient loading from non-point sources into freshwater rivers and lakes. In this study, we use Bayesian Belief Networks (BBNs) to analyze a 2015 survey dataset (sample size = 472 respondents) about the adoption of green infrastructure (GSI) in Vermont’s residential areas, most of which are located …


Genome-Wide Association Study In Accessions Of The Mini-Core Collection Of Mungbean (Vigna Radiata) From The World Vegetable Gene Bank (Taiwan), Alena Sokolkova, Marina Burlyaeva, Tatjana Valiannikova, Margarita Vishnyakova, Roland Schafleitner, Cheng Ruei Lee, Chau Ti Ting, Ramakrishnan Madhavan Nair, Sergey Nuzhdin, Maria Samsonova, Eric Von Wettberg Oct 2020

Genome-Wide Association Study In Accessions Of The Mini-Core Collection Of Mungbean (Vigna Radiata) From The World Vegetable Gene Bank (Taiwan), Alena Sokolkova, Marina Burlyaeva, Tatjana Valiannikova, Margarita Vishnyakova, Roland Schafleitner, Cheng Ruei Lee, Chau Ti Ting, Ramakrishnan Madhavan Nair, Sergey Nuzhdin, Maria Samsonova, Eric Von Wettberg

College of Agriculture and Life Sciences Faculty Publications

Background: Mungbean (Vigna radiata (L.) R. Wilczek, or green gram) is important tropical and sub-tropical legume and a rich source of dietary protein and micronutrients. In this study we employ GWAS to examine the genetic basis of variation in several important traits in mungbean, using the mini-core collection established by the World Vegetable Center, which includes 296 accessions that represent the major market classes. This collection has been grown in a common field plot in southern European part of Russia in 2018. Results: We used 5041 SNPs in 293 accessions that passed strict filtering for genetic diversity, linkage disequilibrium, population …


Dynamical Climatic Model For Time To Flowering In Vigna Radiata, Konstantin Kozlov, Alena Sokolkova, Cheng Ruei Lee, Chau Ti Ting, Roland Schafleitner, Eric Bishop-Von Wettberg, Sergey Nuzhdin, Maria Samsonova Oct 2020

Dynamical Climatic Model For Time To Flowering In Vigna Radiata, Konstantin Kozlov, Alena Sokolkova, Cheng Ruei Lee, Chau Ti Ting, Roland Schafleitner, Eric Bishop-Von Wettberg, Sergey Nuzhdin, Maria Samsonova

College of Agriculture and Life Sciences Faculty Publications

Background: Phenology data collected recently for about 300 accessions of Vigna radiata (mungbean) is an invaluable resource for investigation of impacts of climatic factors on plant development. Results: We developed a new mathematical model that describes the dynamic control of time to flowering by daily values of maximal and minimal temperature, precipitation, day length and solar radiation. We obtained model parameters by adaptation to the available experimental data. The models were validated by cross-validation and used to demonstrate that the phenology of adaptive traits, like flowering time, is strongly predicted not only by local environmental factors but also by plant …


Modeling Alternative Collaborative Governance Network Designs: An Agent-Based Model Of Water Governance In The Lake Champlain Basin, Vermont, Patrick Bitterman, Christopher J. Koliba Oct 2020

Modeling Alternative Collaborative Governance Network Designs: An Agent-Based Model Of Water Governance In The Lake Champlain Basin, Vermont, Patrick Bitterman, Christopher J. Koliba

College of Agriculture and Life Sciences Faculty Publications

Published by Oxford University Press on behalf of the Public Management Research Association. With the widespread use of collaborative governance mechanisms for mitigating water pollution, an opportunity exists to test alternative institutional designs based on collaborative governance theory using computer simulation models, particularly when there is a clear relationship between governance networks, observable resource allocation decisions, and measurable outcomes. This is especially the case for wicked problems like nonpoint source water pollution where there are compelling questions regarding how best to design policies, allocate funds, and build administrative capacity to meet water quality standards. We present an agent-based model (ABM) …


Editorial: Wild Plants As Source Of New Crops, Eric Von Wettberg, Thomas M. Davis, Petr Smýkal Sep 2020

Editorial: Wild Plants As Source Of New Crops, Eric Von Wettberg, Thomas M. Davis, Petr Smýkal

College of Agriculture and Life Sciences Faculty Publications

No abstract provided.


Perspective Article: Actions To Reconfigure Food Systems, Ana Maria Loboguerrero, Philip Thornton, Jonathan Wadsworth, Bruce M. Campbell, Mario Herrero, Daniel Mason-D'Croz, Dhanush Dinesh, Sophia Huyer, Andy Jarvis, Alberto Millan, Eva Wollenberg, Stephen Zebiak Sep 2020

Perspective Article: Actions To Reconfigure Food Systems, Ana Maria Loboguerrero, Philip Thornton, Jonathan Wadsworth, Bruce M. Campbell, Mario Herrero, Daniel Mason-D'Croz, Dhanush Dinesh, Sophia Huyer, Andy Jarvis, Alberto Millan, Eva Wollenberg, Stephen Zebiak

Rubenstein School of Environment and Natural Resources Faculty Publications

There is broad agreement that current food systems are not on a sustainable trajectory that will enable us to reach the Sustainable Development Goals by 2030, particularly in the face of anthropogenic climate change. Guided by a consideration of some food system reconfigurations in the past, we outline an agenda of work around four action areas: rerouting old systems into new trajectories; reducing risks; minimising the environmental footprint of food systems; and realigning the enablers of change needed to make new food systems function. Here we highlight food systems levers that, along with activities within these four action areas, may …


Characterizing Heterogeneous Behavior Of Non-Point-Source Polluters In A Spatial Game Under Alternate Sensing And Incentive Designs, Asim Zia, Shanshan Ding, Kent D. Messer, Haoran Miao, Jordan F. Suter, Jacob R. Fooks, Todd Guilfoos, Simona Trandafir, Emi Uchida, Yushiou Tsai, Scott Merrill, Scott Turnbull, Christopher Koliba Aug 2020

Characterizing Heterogeneous Behavior Of Non-Point-Source Polluters In A Spatial Game Under Alternate Sensing And Incentive Designs, Asim Zia, Shanshan Ding, Kent D. Messer, Haoran Miao, Jordan F. Suter, Jacob R. Fooks, Todd Guilfoos, Simona Trandafir, Emi Uchida, Yushiou Tsai, Scott Merrill, Scott Turnbull, Christopher Koliba

College of Agriculture and Life Sciences Faculty Publications

Behavioral research on natural resource management has revealed a number of variables that can impact collective action. This research builds upon an interactive decision game using experimental economics methods with a focus on production decisions and the corresponding impact they have on ambient water quality. Using hierarchical clustering algorithms, four primary types of behavior are identified: competitive, hypercompetitive, cooperative, and hypercooperative. The results from the experiment are used to test the following three hypotheses: (1) financial incentives increase cooperative behavior, (2) increasing the number and frequency of water quality sensors increases cooperative behavior, and (3) the spatial location of the …


Food And Job Insecurity In Vermont During Covid-19 Infographic, Meredith T. Niles, Anna L. Josephson, Farryl Bertmann, Emily H. Belarmino, Roni Neff Aug 2020

Food And Job Insecurity In Vermont During Covid-19 Infographic, Meredith T. Niles, Anna L. Josephson, Farryl Bertmann, Emily H. Belarmino, Roni Neff

College of Agriculture and Life Sciences Faculty Publications

This infographic details the summary results from a second Vermont survey on food and job insecurity in Vermont during COVID-19 in March and June 2020. Key results include: 1) Nearly 1 in 4 Vermonters experience food insecurity in June 2020; 2) People of color, those without a college degree, with job disruption, with children, and women were more likely to be food insecure; 3) More than 50% of Vermonters experienced job loss or disruption, and 20% received unemployment in June 2020; 4) Use of food assistance programs rose significantly between March 2020 and June 2020.


First Authorship Gender Gap In The Geosciences, T. Pico, P. Bierman, K. Doyle, S. Richardson Aug 2020

First Authorship Gender Gap In The Geosciences, T. Pico, P. Bierman, K. Doyle, S. Richardson

College of Arts and Sciences Faculty Publications

Although gender parity has been reached at the graduate level in the geosciences, women remain a minority in faculty positions. First authorship of peer-reviewed scholarship is a measure of academic success and is often used to project potential in the hiring process. Given the importance of first author publications for hiring and advancement, we sought to quantify whether women are underrepresented as first authors relative to their representation in the field of geoscience. We compiled first author names across 13 leading geoscience journals from January 2013 to April 2019 (n = 35,183). Using a database of 216,286 names from 79 …


Covid-19 And Food Insecurity Impacts: A Follow Up Vermont Study, Meredith T. Niles, Anna L. Josephson, Farryl Bertmann, Emily H. Belarmino, Roni Neff Aug 2020

Covid-19 And Food Insecurity Impacts: A Follow Up Vermont Study, Meredith T. Niles, Anna L. Josephson, Farryl Bertmann, Emily H. Belarmino, Roni Neff

College of Agriculture and Life Sciences Faculty Publications

This brief report details the results from a follow-up survey of 1,236 Vermonters in June 2020, after an initial survey in March/April 2020 focused on the impact of COVID-19 on food access and security. The key results include: 1) Nearly 1 in 4 respondents (23%) were classified as food insecure in June, a reported 22% decrease since March, but higher than before COVID-19. 2) People of color, those without a college degree, those with a job loss, households with children, women, and younger people had greater odds of experiencing food insecurity. 3) The majority of respondent households had experienced some …


Food Access Through School Meals And Food Pantries During Covid-19: Early Findings From Vermont, Farryl Bertmann, Emily H. Belarmino, Thomas Wentworth, Erin Biehl, Roni Neff, Meredith T. Niles Jun 2020

Food Access Through School Meals And Food Pantries During Covid-19: Early Findings From Vermont, Farryl Bertmann, Emily H. Belarmino, Thomas Wentworth, Erin Biehl, Roni Neff, Meredith T. Niles

College of Agriculture and Life Sciences Faculty Publications

The novel coronavirus (COVID-19) pandemic has affected people worldwide, disrupting food access, and security. To understand how food systems and security are impacted during this pandemic, an online survey was launched in Vermont from March 29 - April 12, 2020 (less than a week after the “Stay Home/Stay Safe” order). A total of 3,219 Vermonters responded with 182 providing a written answer specifically about food pantries and 828 of the respondents providing written comments to the open-ended question at the end of the survey. This brief summarizes survey findings and respondent comments about experiences with two programs during the early …


Environment And Global Health: Investments In Natural Capital Can Improve Human Health, Stephen Posner, Taylor Ricketts May 2020

Environment And Global Health: Investments In Natural Capital Can Improve Human Health, Stephen Posner, Taylor Ricketts

Reports and Policy Briefs

Gund Fellows led several key “big data” studies on how investments in nature can benefit people’s health and economic prosperity in developing countries. This policy brief summarized research evidence on links between health and the environment for stakeholders and partners, including the Biodiversity Results and Integrated Development Gains Enhanced Project (BRIDGE) managed by USAID’s Forestry and Biodiversity Office.


Growing Specialty Coffee: Economic Security And Environmental Sustainability In Global Coffee Systems, Stephen Posner, Janica Anderzen, Alejandra Guzman Luna, Ernesto Mendez Apr 2020

Growing Specialty Coffee: Economic Security And Environmental Sustainability In Global Coffee Systems, Stephen Posner, Janica Anderzen, Alejandra Guzman Luna, Ernesto Mendez

Reports and Policy Briefs

The Gund Institute has partnered with the Agroecology & Livelihoods Collaborative to create a more sustainable and just global coffee sector. Gund Fellows used this research brief to leverage our networks and engage NGOs such as The Specialty Coffee Association, funders, and companies in early discussions about how to address systemic inequity across the coffee value chain.


Building Resilience Through Culturally Grounded Practices In Clinical Psychology And Higher Education, Catarina Campbell, Phyu Pannu Khin Apr 2020

Building Resilience Through Culturally Grounded Practices In Clinical Psychology And Higher Education, Catarina Campbell, Phyu Pannu Khin

The Vermont Connection

There is no “one size fits all” approach when it comes to the process of healing, particularly for individuals who are continuously affected by the many barriers and impacts of systemic oppres- sion. This reality demands the sustained development of a praxis rooted in trauma-informed and culturally grounded care so that we may better serve our most-impacted communities (such as Black, Indigenous and People of Color [BIPOC], disability, queer, and survivor communities). As practitioners in the fields of Clinical Psychology and Higher Education, we engage in cross-disciplinary analysis so that we may amplify and share our tools for collective healing. …


The Impact Of Coronavirus On Vermonters Experiencing Food Insecurity, Meredith T. Niles, Farryl Bertmann, Emily H. Morgan, Thomas Wentworth, Erin Biehl, Roni Neff Apr 2020

The Impact Of Coronavirus On Vermonters Experiencing Food Insecurity, Meredith T. Niles, Farryl Bertmann, Emily H. Morgan, Thomas Wentworth, Erin Biehl, Roni Neff

College of Agriculture and Life Sciences Faculty Publications

Key Findings

1. Respondents experiencing food insecurity were more likely to be people of color, female, live in households with children, and live in larger households.

2. 84.2% of respondents who experienced food insecurity at some point in the year before the coronavirus pandemic remained food insecure during the early days of the outbreak.

3. The majority of respondents experiencing food insecurity are not utilizing food assistance programs.

4. ⅔ of respondents experiencing food insecurity are already buying different, cheaper foods or eating less to make their food last.

5. ⅔ of respondents experiencing food insecurity with a job had …


Food Access And Security During Coronavirus: A Vermont Study, Meredith T. Niles, Farryl Bertmann, Emily H. Morgan, Thomas Wentworth, Erin Biehl, Roni Neff Apr 2020

Food Access And Security During Coronavirus: A Vermont Study, Meredith T. Niles, Farryl Bertmann, Emily H. Morgan, Thomas Wentworth, Erin Biehl, Roni Neff

College of Agriculture and Life Sciences Faculty Publications

Key Findings

1. Respondents reported a 33% increase in food insecurity since the coronavirus outbreak began in Vermont (from 18% to 24%).

2. 45% of respondents with jobs experienced a job disruption or loss.

3. Respondents said the most helpful actions for meeting their food needs would be increased trust in the safety of going to stores and more food in stores.

4. Respondents worried most about food becoming unaffordable and running out of food if they were unable to go out.

5. Vermonters are using a variety of strategies to adapt: a majority of respondents are at least somewhat …


Employment And Food During Coronavirus, Meredith T. Niles, Farryl Bertmann, Emily H. Morgan, Thomas Wentworth, Erin Biehl, Roni Neff Apr 2020

Employment And Food During Coronavirus, Meredith T. Niles, Farryl Bertmann, Emily H. Morgan, Thomas Wentworth, Erin Biehl, Roni Neff

College of Agriculture and Life Sciences Faculty Publications

Key Findings

1. 45% of respondents with jobs experienced some type of job disruption or loss. 19.7% had a reduction in hours or income, 9.3% had been furloughed, and 15.5% had lost their job since the coronavirus outbreak.

2. 38.5% of respondents experiencing job loss or disruption since the outbreak were classified as food insecure.

3. Respondents experiencing job disruption or loss were significantly more likely to be already implementing food purchasing or eating changes and concerned about food access compared to those who did not experience a change in employment.

4. Respondents with job disruption or loss were significantly …


Effects Of Social Cues On Biosecurity Compliance In Livestock Facilities: Evidence From Experimental Simulations, Luke Trinity, Scott C. Merrill, Eric M. Clark, Christopher J. Koliba, Asim Zia, Gabriela Bucini, Julia M. Smith Mar 2020

Effects Of Social Cues On Biosecurity Compliance In Livestock Facilities: Evidence From Experimental Simulations, Luke Trinity, Scott C. Merrill, Eric M. Clark, Christopher J. Koliba, Asim Zia, Gabriela Bucini, Julia M. Smith

College of Agriculture and Life Sciences Faculty Publications

Disease outbreaks in U.S. animal livestock industries have economic impacts measured in hundreds of millions of dollars per year. Biosecurity, or procedures intended to protect animals against disease, is known to be effective at reducing infection risk at facilities. Yet, to the detriment of animal health, humans do not always follow biosecurity protocols. Human behavioral factors have been shown to influence willingness to follow biosecurity protocols. Here we show how social cues may affect cooperation with a biosecurity practice. Participants were immersed in a simulated swine production facility through a graphical user interface and prompted to make a decision that …


Barriers And Facilitators To Use Of A Clinical Evidence Technology In The Management Of Skin Problems In Primary Care: Insights From Mixed Methods, Marianne D. Burke Ph.D., Liliane Savard Dpt, Alan Rubin Md, Benjamin Littenberg Md Mar 2020

Barriers And Facilitators To Use Of A Clinical Evidence Technology In The Management Of Skin Problems In Primary Care: Insights From Mixed Methods, Marianne D. Burke Ph.D., Liliane Savard Dpt, Alan Rubin Md, Benjamin Littenberg Md

University Libraries Faculty and Staff Publications

Objective: Few studies have examined the impact of a single clinical evidence technology (CET) on provider practice or patient outcomes from the provider’s perspective. A previous cluster-randomized controlled trial with patient-reported data tested the effectiveness of a CET (i.e., VisualDx) in improving skin problem outcomes but found no significant effect. The objectives of this follow-up study were to identify barriers and facilitators to the use of the CET from the perspective of primary care providers (PCPs) and to identify reasons why the CET did not affect outcomes in the trial.

Methods: Using a convergent mixed methods design, PCPs completed a …


Mediterranean Marine Protected Areas Have Higher Biodiversity Via Increased Evenness, Not Abundance, Shane A. Blowes, Jonathan M. Chase, Antonio Di Franco, Ori Frid, Nicholas J. Gotelli, Paolo Guidetti, Tiffany M. Knight, Felix May, Daniel J. Mcglinn, Fiorenza Micheli, Enric Sala, Jonathan Belmaker Mar 2020

Mediterranean Marine Protected Areas Have Higher Biodiversity Via Increased Evenness, Not Abundance, Shane A. Blowes, Jonathan M. Chase, Antonio Di Franco, Ori Frid, Nicholas J. Gotelli, Paolo Guidetti, Tiffany M. Knight, Felix May, Daniel J. Mcglinn, Fiorenza Micheli, Enric Sala, Jonathan Belmaker

College of Arts and Sciences Faculty Publications

Journal of Applied Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society. Protected areas are central to biodiversity conservation. For marine fish, marine protected areas (MPAs) often harbour more individuals, especially of species targeted by fisheries. But precise pathways of biodiversity change remain unclear. For example, how local-scale responses combine to affect regional biodiversity, important for managing spatial networks of MPAs, is not well known. Protection potentially influences three components of fish assemblages that determine how species accumulate with sampling effort and spatial scale: the total number of individuals, the relative abundance of species and …


Temperature Controls Production But Hydrology Regulates Export Of Dissolved Organic Carbon At The Catchment Scale, Hang Wen, Julia Perdrial, Benjamin W. Abbott, Susana Bernal, Remi Dupas, Sarah E. Godsey, Adrian Harpold, Donna Rizzo, Kristen Underwood, Thomas Adler, Gary Sterle, Li Li Feb 2020

Temperature Controls Production But Hydrology Regulates Export Of Dissolved Organic Carbon At The Catchment Scale, Hang Wen, Julia Perdrial, Benjamin W. Abbott, Susana Bernal, Remi Dupas, Sarah E. Godsey, Adrian Harpold, Donna Rizzo, Kristen Underwood, Thomas Adler, Gary Sterle, Li Li

College of Engineering and Mathematical Sciences Faculty Publications

Lateral carbon flux through river networks is an important and poorly understood component of the global carbon budget. This work investigates how temperature and hydrology control the production and export of dissolved organic carbon (DOC) in the Susquehanna Shale Hills Critical Zone Observatory in Pennsylvania, USA. Using field measurements of daily stream discharge, evapotranspiration, and stream DOC concentration, we calibrated the catchment-scale biogeochemical reactive transport model BioRT-Flux-PIHM (Biogeochemical Reactive Transport-Flux-Penn State Integrated Hydrologic Model, BFP), which met the satisfactory standard of a Nash-Sutcliffe efficiency (NSE) value greater than 0.5. We used the calibrated model to estimate and compare the daily …


Noncooperative Dynamics In Election Interference, David Rushing Dewhurst, Christopher M. Danforth, Peter Sheridan Dodds Feb 2020

Noncooperative Dynamics In Election Interference, David Rushing Dewhurst, Christopher M. Danforth, Peter Sheridan Dodds

College of Engineering and Mathematical Sciences Faculty Publications

Foreign power interference in domestic elections is an existential threat to societies. Manifested through myriad methods from war to words, such interference is a timely example of strategic interaction between economic and political agents. We model this interaction between rational game players as a continuous-time differential game, constructing an analytical model of this competition with a variety of payoff structures. All-or-nothing attitudes by only one player regarding the outcome of the game lead to an arms race in which both countries spend increasing amounts on interference and counterinterference operations. We then confront our model with data pertaining to the Russian …


Upcycling Phosphorus Recovered From Anaerobically Digested Dairy Manure To Support Production Of Vegetables And Flowers, Katherine K. Porterfield, Robert Joblin, Deborah A. Neher, Michael Curtis, Steve Dvorak, Donna M. Rizzo, Joshua W. Faulkner, Eric D. Roy Feb 2020

Upcycling Phosphorus Recovered From Anaerobically Digested Dairy Manure To Support Production Of Vegetables And Flowers, Katherine K. Porterfield, Robert Joblin, Deborah A. Neher, Michael Curtis, Steve Dvorak, Donna M. Rizzo, Joshua W. Faulkner, Eric D. Roy

Rubenstein School of Environment and Natural Resources Faculty Publications

Dissolved air flotation (DAF) separates phosphorus (P)-rich fine solids from anaerobically digested dairy manure, creating opportunities to export surplus P to the marketplace as a bagged plant food product. Seedlings of tomato and marigold were amended at various volume per volume (v/v) ratios with plant foods consisting of fine solids upcycled (i.e., transformed into a higher quality product) by drying and blending with other organic residuals. A plate competition assay was conducted to assess the fine solids' potential to suppress the plant pathogen Rhizoctonia solani. Plant foods were comprised of 2.0-2.1% N, 0.8-0.9% P and 0.6-0.8% K. Extractions indicated that …


Majority Of Rural Residents Compost Food Waste: Policy And Waste Management Implications For Rural Regions, Meredith T. Niles Jan 2020

Majority Of Rural Residents Compost Food Waste: Policy And Waste Management Implications For Rural Regions, Meredith T. Niles

College of Agriculture and Life Sciences Faculty Publications

A growing number of municipalities and states are implementing household food waste diversion efforts such as curbside compost programs, though these programs present challenges for participation and implementation. While many food waste diversion programs are occurring in densely populated regions, understanding food waste management in rural regions is less studied. This research examines the food waste perceptions and current and future food waste management behaviors of residents in Vermont, one of the most rural U.S. states, through a representative telephone survey of Vermont residents (n = 583) in 2018. The findings suggest 55% of residents support banning food waste from …


Agricultural Development Addresses Food Loss And Waste While Reducing Greenhouse Gas Emissions, Gillian L. Galford, Olivia Peña, Amanda K. Sullivan, Julie Nash, Noel Gurwick, Gillian Pirolli, Meryl Richards, Julianna White, Eva Wollenberg Jan 2020

Agricultural Development Addresses Food Loss And Waste While Reducing Greenhouse Gas Emissions, Gillian L. Galford, Olivia Peña, Amanda K. Sullivan, Julie Nash, Noel Gurwick, Gillian Pirolli, Meryl Richards, Julianna White, Eva Wollenberg

Rubenstein School of Environment and Natural Resources Faculty Publications

Food loss and waste (FLW) reduce food available for consumption and increase the environmental burden of production. Reducing FLW increases agricultural and value-chain productivity and may reduce greenhouse gas emissions associated with feeding the global population. Although studies of interventions that reduce FLW exist, almost no research systematically investigates FLW interventions across multiple value chains or countries, most likely due to challenges in collecting and synthesizing data and estimates, let alone estimating greenhouse gas emissions. Our research team investigated changes in FLW in projects supported by the United States Agency for International Development's (USAID) global hunger and food security initiative, …


Are Wolves Welcome? Hunters' Attitudes Towards Wolves In Vermont, Usa, Nelson Grima, John Brainard, Brendan Fisher Jan 2020

Are Wolves Welcome? Hunters' Attitudes Towards Wolves In Vermont, Usa, Nelson Grima, John Brainard, Brendan Fisher

Rubenstein School of Environment and Natural Resources Faculty Publications

Published by Cambridge University Press on behalf of Fauna & Flora International. The forests of the north-east USA were once home to the Wolf Canis lupus, a species that played an important role in the ecology of this region. However, wolves were eradicated from the region more than a century ago, altering the species composition of the landscape and driving cascading changes in this ecosystem. Outdoor recreation is a major component of the economy of this region, and outdoor recreationists, including the hunting community, have a strong influence over decision-making related to policies on natural resources. Given their powerful position, …