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Environmental Sciences

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2020

Climate change

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Articles 1 - 30 of 42

Full-Text Articles in Physical Sciences and Mathematics

The Spatial And Temporal Impact Of Agricultural Crop Residual Burning On Local Land Surface Temperature In Three Provinces Across China From 2015 To 2017, Wenting Zhang, Mengmeng Yu, Qingqing He, Tianwei Wang, Lu Lin, Kai Cao, Wei Huang, Peihong Fu, Jiaxin Chen Dec 2020

The Spatial And Temporal Impact Of Agricultural Crop Residual Burning On Local Land Surface Temperature In Three Provinces Across China From 2015 To 2017, Wenting Zhang, Mengmeng Yu, Qingqing He, Tianwei Wang, Lu Lin, Kai Cao, Wei Huang, Peihong Fu, Jiaxin Chen

Research Collection School Of Computing and Information Systems

China has suffered from severe crop residue burning (CRB) for a long time. As a type of biomass burning, CRB leads to a huge alteration in climate due to the emission of greenhouse gases and particulates in the atmosphere and damages to surface characteristics on land. At present, a growing body of research focuses on the impact of biomass burning (BB) (e.g., forest fire, grass fire, and CRB) on climate change from the aspect of atmospheric process. Meanwhile, a small number of research studies have started to pay attention on the damage caused by BB (e.g. forest fire) on land …


Impacts Of Climate Change On Multiple Use Management Of Bureau Of Land Management Land In The Intermountain West, Usa, Elaine M. Brice, Brett A. Miller, Hongchao Zhang, Kirsten Goldstein, Scott N. Zimmer, Guenchik J. Grosklos, Patrick Belmont, Courtney G. Flint, Jennifer E. Givens, Peter B. Adler, Mark W. Brunson, Jordan W. Smith Nov 2020

Impacts Of Climate Change On Multiple Use Management Of Bureau Of Land Management Land In The Intermountain West, Usa, Elaine M. Brice, Brett A. Miller, Hongchao Zhang, Kirsten Goldstein, Scott N. Zimmer, Guenchik J. Grosklos, Patrick Belmont, Courtney G. Flint, Jennifer E. Givens, Peter B. Adler, Mark W. Brunson, Jordan W. Smith

Watershed Sciences Faculty Publications

Although natural resource managers are concerned about climate change, many are unable to adequately incorporate climate change science into their adaptation strategies or management plans, and are not always aware of or do not employ the most current scientific knowledge. One of the most prominent natural resource management agencies in the United States is the Bureau of Land Management (BLM), which is tasked with managing over 248 million acres (>1 million km2) of public lands for multiple, often conflicting, uses. Climate change will affect the sustainability of many of these land uses and could further increase conflicts …


The Year The West Was Burning: How The 2020 Wildfire Season Got So Extreme, Mojtaba Sadegh, Ata Akbari Asanjan, Mohammad Reza Alizadeh Oct 2020

The Year The West Was Burning: How The 2020 Wildfire Season Got So Extreme, Mojtaba Sadegh, Ata Akbari Asanjan, Mohammad Reza Alizadeh

Civil Engineering Faculty Publications and Presentations

More than 4 million acres of California went up in flames in 2020 – about 4% of the state’s land area and more than double its previous wildfire record. Five of the state’s six largest fires on record were burning this year.

In Colorado, the Pine Gulch fire broke the record for that state’s largest wildfire, only to be surpassed by two larger blazes, the Cameron Peak and East Troublesome fires.

Oregon saw one of the most destructive fire seasons in its recorded history, with more than 4,000 homes destroyed.

What caused the 2020 fire season to become so extreme?


Non-Conventional Vehicles As A Way Towards Carbon Neutrality In Iceland, Julia Sokolowska Oct 2020

Non-Conventional Vehicles As A Way Towards Carbon Neutrality In Iceland, Julia Sokolowska

Independent Study Project (ISP) Collection

Paris Agreement’s chief objective is to protect the Earth and its inhabitants from a point of no return, when the effects of climate change will be so intense that they will shift the equilibrium of ecosystems. The distinctiveness of this international environmental treaty is that it does not impose climate change mitigation measures, but rather allows nation states to create their own set of measures, the NDCs, to reach the global warming of ‘well below 2oC’ by the end of the century. Thus, Iceland has submitted its own NDC, the Climate Action Plan 2018-2030, which has an ambitious goal of …


On Environmental, Climate Change & National Security Law, Mark P. Nevitt Oct 2020

On Environmental, Climate Change & National Security Law, Mark P. Nevitt

All Faculty Scholarship

This Article offers a new way to think about climate change. Two new climate change assessments — the 2018 Fourth National Climate Assessment (NCA) and the United Nations Intergovernmental Panel’s Special Report on Climate Change — prominently highlight climate change’s multifaceted national security risks. Indeed, not only is climate change a “super wicked” environmental problem, it also accelerates existing national security threats, acting as both a “threat accelerant” and “catalyst for conflict.” Further, climate change increases the intensity and frequency of extreme weather events while threatening nations’ territorial integrity and sovereignty through rising sea levels. It causes both internal displacement …


Applying Renewable Energies Against Climate Change: Solar Photovoltaic (Pv) Energy, Juan Jose Estribi Aug 2020

Applying Renewable Energies Against Climate Change: Solar Photovoltaic (Pv) Energy, Juan Jose Estribi

English Language Institute

In recent years, more efforts towards fighting climate change have been done. As a direct response, research and technology have offered several insights regarding the specific causes, effects, and even possible solutions for resolving this global issue. Among these solutions, renewable energies and their potential contributions as clean energy sources can be assessed as feasible options for the energy transformation through the decarbonization process of the energy industry. This poster is mainly focused on solar photovoltaic (PV) energy and its great potential as a renewable energy by making a brief assessment of some important aspects such as resource availability, its …


Scientific Assessment Of Climate Change And Its Effects In Maine, Maine Climate Council Scientific And Technical Subcommittee, Ivan Fernandez, Robert Marvinney, Susie Arnold, Linda Bacon, Andrew Barton, Brian Beal, Sean Birkel, Russell Black, Alix Contosta, Amanda Cross, Adam Daigneault, Thomas Danielson, Stephen Dickson, Jeanne Difranco, Susan Elias, Glenn Hodgkins, Brian Hubbell, Joe Kelley, Rick Kersbergen, Glen Koehler, Rebecca Lincoln, William Livingston, Pamela Lombard, Bradfield Lyon, Andrew Pershing, Nichole Price, Jonathan Rubin, Joseph Salisbury, Erin Simons-Legaard, Peter Slovinsky, Robert Steneck, Sally Stockwell, Richard Wahle, Jay Wason, Aaron Weiskittel, Carl Wilson Aug 2020

Scientific Assessment Of Climate Change And Its Effects In Maine, Maine Climate Council Scientific And Technical Subcommittee, Ivan Fernandez, Robert Marvinney, Susie Arnold, Linda Bacon, Andrew Barton, Brian Beal, Sean Birkel, Russell Black, Alix Contosta, Amanda Cross, Adam Daigneault, Thomas Danielson, Stephen Dickson, Jeanne Difranco, Susan Elias, Glenn Hodgkins, Brian Hubbell, Joe Kelley, Rick Kersbergen, Glen Koehler, Rebecca Lincoln, William Livingston, Pamela Lombard, Bradfield Lyon, Andrew Pershing, Nichole Price, Jonathan Rubin, Joseph Salisbury, Erin Simons-Legaard, Peter Slovinsky, Robert Steneck, Sally Stockwell, Richard Wahle, Jay Wason, Aaron Weiskittel, Carl Wilson

Climate Change

Climate change has already made its presence known in Maine, from shorter winters and warmer summers with ocean heat waves, to stronger storms, new species showing up in our backyards and the Gulf of Maine, aquatic algal blooms, acidic ocean waters that affect shellfish, and new pests and diseases that harm our iconic forests and fisheries.

The health of Maine people is also being affected by climate change, from high heat index days driving increased emergency room visits to the ravages of Lyme and other vector-borne diseases. And our economy is feeling the effects, too — with farmers trying to …


Statement Of World Aquatic Scientific Societies On The Need To Take Urgent Action Against Human-Caused Climate Change, Based On Scientific Evidence [Dear Colleague Letter], Scott A. Bonar, Brian R. Murphy, Leanne H. Roulson, Jesse T. Trushenski, Douglas J. Austen, Michael Edward Douglas Jul 2020

Statement Of World Aquatic Scientific Societies On The Need To Take Urgent Action Against Human-Caused Climate Change, Based On Scientific Evidence [Dear Colleague Letter], Scott A. Bonar, Brian R. Murphy, Leanne H. Roulson, Jesse T. Trushenski, Douglas J. Austen, Michael Edward Douglas

United States Fish and Wildlife: Staff Publications

Dear Colleague Letter from the American Fisheries Society to fellow scientific societies, July 25, 2020, about the urgent need for responsive collective action to mitigate impending radical climate change. Includes the Statement of World Aquatic Scientific Societies on the Need to Take Urgent Action Against Human-Caused Climate Change, Based on Scientific Evidence, emphasizing the importance of aquatic ecosystems. Includes extensive citations and notes.

"Water is the most important natural resource on Earth as it is vital for life. Aquatic ecosystems, freshwater or marine, provide multiple benefits to human society, such as provisioning of oxygen, food, drinking water, genetic resources; regulation …


Projected Surface Water For Fruit And Vegetable Irrigation Under A Changing Climate In The Us, Marty Matlock, Greg Thoma, Kieu Ngoc Le, Eric Cummings, Zach Morgan, Andrew Shaw Jun 2020

Projected Surface Water For Fruit And Vegetable Irrigation Under A Changing Climate In The Us, Marty Matlock, Greg Thoma, Kieu Ngoc Le, Eric Cummings, Zach Morgan, Andrew Shaw

Water Systems

Increasing greenhouse gas concentrations in the atmosphere, resulting in climate impacts, are raising concerns over the hydrologic cycle and its effects upon agricultural productivity. If rainfall patterns change, meeting an increased demand for fruits and vegetables will pose a challenge for domestic production regions in the United States (U.S.). Information on potential water supply scarcity in the current production regions provides decision makers with critical information for risk mitigation for future production. We used a hydrologic balance-based model of historic and future water availability to evaluate risk of available irrigation water to support major fruit and vegetable production the US. …


Gather, Educate, Prepare: Libraries As Champions To Build Informed And Climate-Resilient Communities, Adrian K. Ho, René Tanner, Monika Antonelli Jun 2020

Gather, Educate, Prepare: Libraries As Champions To Build Informed And Climate-Resilient Communities, Adrian K. Ho, René Tanner, Monika Antonelli

Library Presentations

The past few years have witnessed increasing numbers of discussions and programs about the impacts of climate change, addressing topics from the devastating wildfires in California, relentless heat waves in Europe, to the accelerating thaw of the ice sheet in Greenland. The media has described the social atmosphere using such terms as climate angst, ecological grief, and existential crisis. Weighed down by a steady stream of climate news, some people have sought professional help for guidance on tackling emotional responses to natural disasters and climate trauma. Meanwhile, many of us are wondering what can be done. As a central player …


Climate Change Impacts The Subsurface Transport Of Atrazine And Estrone Originating From Agricultural Production Activities, Renys Enrique Barrios, Simin Akbariyeh, Chuyang Liu, Khalid Muzamil Gani, Margarita T. Kovalchuk, Xu Li, Yusong Li, Daniel D. Snow, Zhenghong Tang, John Gates, Shannon L. Bartelt-Hunt Jun 2020

Climate Change Impacts The Subsurface Transport Of Atrazine And Estrone Originating From Agricultural Production Activities, Renys Enrique Barrios, Simin Akbariyeh, Chuyang Liu, Khalid Muzamil Gani, Margarita T. Kovalchuk, Xu Li, Yusong Li, Daniel D. Snow, Zhenghong Tang, John Gates, Shannon L. Bartelt-Hunt

Nebraska Water Center: Faculty Publications

Climate change will impact soil properties such as soil moisture, organic carbon and temperature and changes in these properties will influence the sorption, biodegradation and leaching of trace organic contaminants to groundwater. In this study, we conducted a modeling case study to evaluate atrazine and estrone transport in the subsurface under current and future climate conditions at a field site in central Nebraska. According to the modeling results, in the future, enhanced evapotranspiration and increased average air temperature may cause drier soil conditions, which consequently reduces the biodegradation of atrazine and estrone in the water phase. On the other hand, …


Examining The Impact Of Climate Change Film As An Educational Tool, Brittany Bondi, Salma Monani, Sarah M. Principato, Christopher P. Barlett Jun 2020

Examining The Impact Of Climate Change Film As An Educational Tool, Brittany Bondi, Salma Monani, Sarah M. Principato, Christopher P. Barlett

Student Publications

Purpose: The aim of this paper is to evaluate the effectiveness of film in communicating issues related to climate change. While previous studies demonstrate an immediate effect of a film post-screening, this study also considered if a film can inspire long-term effects, and if supplemental educational information plays a role on participant understanding.

Design/methodology/approach: Using surveys, we assessed undergraduate students’ climate change responses pre-, immediately-post, and 9-weeks post watching the climate change documentary The Human Element (Prod. Earth Vision Institute, 2018). In the 9-week interim before the final survey, half of the participants received weekly information on climate change via …


Influences Of The Timing Of Extreme Precipitation On Floods In Poyang Lake, China, Xianghu Li, Qi Hu, Rong Wang, Dan Zhang, Qi Zhang Jun 2020

Influences Of The Timing Of Extreme Precipitation On Floods In Poyang Lake, China, Xianghu Li, Qi Hu, Rong Wang, Dan Zhang, Qi Zhang

School of Natural Resources: Faculty Publications

Changes in the timing of extreme precipitation have important ramifications for public safety and storm water management, but it has not received much attention in relation to flooding. This study analyzed the changes in the timing of extreme precipitation in the Poyang Lake basin and projected its future changes for the period 2020–2099. The study also quantified the influences of changes in the timing of peak flows on lake floods based on a hydrodynamic model. The results showed that peak rainfall in the Poyang Lake basin had occurred on later dates during the period 1960–2012, and it is this change …


Developing And Implementing A 100% Renewable Electricity Resolution: A Research-Based Framework, Emily E. Skill, Roslynn Brain Mccann, Sarah C. Klain Jun 2020

Developing And Implementing A 100% Renewable Electricity Resolution: A Research-Based Framework, Emily E. Skill, Roslynn Brain Mccann, Sarah C. Klain

All Current Publications

While it may seem that the efforts of local governments have only a marginal impact on the global issue of climate change, local action can spread to generate large-scale change. Local action can inspire other communities to adopt policies, creating the potential to expand and form regional action on climate change. Furthermore, local policies can influence state and federal policies. This guide will walk you through a five-step framework that was developed from the results of a qualitative research study that explored how three Utah cities, Salt Lake City, Park City, and Moab, successfully adopted 100% renewable electricity resolutions.


Singapore's Climate Action: It Is Time To Be More Ambitious, Winston T. L. Chow Jun 2020

Singapore's Climate Action: It Is Time To Be More Ambitious, Winston T. L. Chow

Research Collection School of Social Sciences

Some nations have declared net-zero carbon emission targets by 2050. Businesses and the people here know Singapore can punch above its weight. The government should lend its support.


An Assessment Of Renewable Energy Technology Implementation In Storrs, Connecticut: Emissions Reduction And Feasibility Of A Microgrid System At Uconn, Sophie Macdonald May 2020

An Assessment Of Renewable Energy Technology Implementation In Storrs, Connecticut: Emissions Reduction And Feasibility Of A Microgrid System At Uconn, Sophie Macdonald

Honors Scholar Theses

The purpose of this project is to design a clean energy-sourced microgrid for UConn’s main campus that would reduce the university’s energy emissions while remaining within the geographic boundaries of viable UConn-owned land. Economic cost was not considered in this analysis; instead, emissions and space constraints were the optimized measures of value and feasibility. Sources of energy that were considered include photovoltaics (PV), wind turbines, hydrokinetic systems, and fuel cells. Energy storage capacity was included in the analysis as well. The overall system was optimized first by ignoring space constraints and for a minimum of 10% reduction from the current …


What’S Going To Happen To My Pancakes? The Impacts Of Climate Change Upon Blueberries And Sugar Maple, Ashley Kayser May 2020

What’S Going To Happen To My Pancakes? The Impacts Of Climate Change Upon Blueberries And Sugar Maple, Ashley Kayser

Honors College

The United Nations believes that the foremost challenge of the future will be climate change. Because of human use of fossil fuels, greenhouse gases have been released into the atmosphere at unsustainable rates, which have resulted in an altered climate that will impact weather patterns around the globe. There have already been measurable shifts in precipitation and temperature in many regions; in the state of Maine the general trend has been toward higher temperatures and increased precipitation. This is resulting in impacts to agriculture throughout the state. Blueberries and sugar maple are two culturally and economically valuable crops which will …


Solve Climate By 2030, Jessica L. Schedlbauer, Paul Morgan Apr 2020

Solve Climate By 2030, Jessica L. Schedlbauer, Paul Morgan

Sustainability Research & Practice Seminar Presentations

No abstract provided.


Covid-19_Umaine News_Carbon Emission Drop Amid Covid-19, University Of Maine Division Of Marketing And Communications Apr 2020

Covid-19_Umaine News_Carbon Emission Drop Amid Covid-19, University Of Maine Division Of Marketing And Communications

Division of Marketing & Communications

Screenshot of Maine News release regarding Maine Public interview with Paul Mayewski, director of the University of Maine Climate Change Institute, and Andrew Pershing, chief scientific officer and climate change ecologist for the Gulf of Maine Research Institute, for the Maine Calling piece "Climate Change & COVID-1 9: How Pandemic-Driven Changes in Behavior Might Affect Our Environment."


Predicting The Influence Of Climate On Grassland Area Burned In Xilingol, China With Dynamic Simulations Of Autoregressive Distributed Lag Models, Ali Hassan Shabbir, Jiquan Zhang, James D. Johnston, Samuel Asumadu Sarkodie, James A. Lutz, Xingpeng Liu Apr 2020

Predicting The Influence Of Climate On Grassland Area Burned In Xilingol, China With Dynamic Simulations Of Autoregressive Distributed Lag Models, Ali Hassan Shabbir, Jiquan Zhang, James D. Johnston, Samuel Asumadu Sarkodie, James A. Lutz, Xingpeng Liu

Wildland Resources Faculty Publications

The influence of climate change on wildland fire has received considerable attention, but few studies have examined the potential effects of climate variability on grassland area burned within the extensive steppe land of Eurasia. We used a novel statistical approach borrowed from the social science literature—dynamic simulations of autoregressive distributed lag (ARDL) models—to explore the relationship between temperature, relative humidity, precipitation, wind speed, sunlight, and carbon emissions on grassland area burned in Xilingol, a large grassland-dominated landscape of Inner Mongolia in northern China. We used an ARDL model to describe the influence of these variables on observed area burned between …


Global Pattern And Change Of Cropland Soil Organic Carbon During 1901-2010: Roles Of Climate, Atmospheric Chemistry, Land Use And Management, Wei Ren, Kamaljit Banger, Bo Tao, Jia Yang, Yawen Huang, Hanqin Tian Mar 2020

Global Pattern And Change Of Cropland Soil Organic Carbon During 1901-2010: Roles Of Climate, Atmospheric Chemistry, Land Use And Management, Wei Ren, Kamaljit Banger, Bo Tao, Jia Yang, Yawen Huang, Hanqin Tian

Plant and Soil Sciences Faculty Publications

Soil organic carbon (SOC) in croplands is a key property of soil quality for ensuring food security and agricultural sustainability, and also plays a central role in the global carbon (C) budget. When managed sustainably, soils may play a critical role in mitigating climate change by sequestering C and decreasing greenhouse gas emissions into the atmosphere. However, the magnitude and spatio-temporal patterns of global cropland SOC are far from well constrained due to high land surface heterogeneity, complicated mechanisms, and multiple influencing factors. Here, we use a process-based agroecosystem model (DLEM-Ag) in combination with diverse spatially-explicit gridded environmental data to …


Tackling Regional Climate Change Impacts And Food Security Issues: A Critical Analysis Across Asean, Pif, And Saarc, Md. Saidul Islam, Edson Kieu Mar 2020

Tackling Regional Climate Change Impacts And Food Security Issues: A Critical Analysis Across Asean, Pif, And Saarc, Md. Saidul Islam, Edson Kieu

Research Collection Lee Kong Chian School Of Business

Climate change and food security issues are multi-faceted and transcend across national boundaries. Therefore, this paper begins with the premise that regional organizations are optimally positioned to address climate change and food security issues while actively engaging global partners to slow down or reverse current trajectories. However, the potential of regional organizations to play a central role in mitigating these vital concerns has not been realized. In this paper, we focus on three regional organizations—the Association of Southeast Asian Nations (ASEAN), the Pacific Islands Forum (PIF), and the South Asian Association for Regional Cooperation (SAARC) and set out to investigate …


Climate Change Perceptions, Data, And Adaptation In The Garhwal Himalayas Of India, Rutherford V. Platt, Monica V. Ogra, Natalie A. Kisak, Upma Manral, Ruchi Badola Feb 2020

Climate Change Perceptions, Data, And Adaptation In The Garhwal Himalayas Of India, Rutherford V. Platt, Monica V. Ogra, Natalie A. Kisak, Upma Manral, Ruchi Badola

Environmental Studies Faculty Publications

Himalayan communities that depend on rain-fed agriculture are disproportionately vulnerable to climate change. In this study, we compare local perceptions of climate change from a household survey (n = 251) to climate data obtained from the Global Land Data Assimilation System (GLDAS 2.1) and MODIS Terra Snow Cover data product datasets. The study is situated in and around the Kedarnath Wildlife Sanctuary, which is located within the Garhwal Himalayas in the Indian state of Uttarakhand. We found that a large majority of respondents perceive that rainfall is increasing and that snowfall is decreasing, while a smaller majority perceives an …


Projected Increase Of The East Asian Summer Monsoon (Meiyu) In Taiwan By Climate Models With Variable Performance, Yu-Shiang Tung, Shih-Yu (Simon) Wang, Jung-Lien Chu, Chi-Hua Wu, Yung-Ming Chen, Chao-Tzuen Cheng, Lee-Yaw Lin Feb 2020

Projected Increase Of The East Asian Summer Monsoon (Meiyu) In Taiwan By Climate Models With Variable Performance, Yu-Shiang Tung, Shih-Yu (Simon) Wang, Jung-Lien Chu, Chi-Hua Wu, Yung-Ming Chen, Chao-Tzuen Cheng, Lee-Yaw Lin

Plants, Soils, and Climate Faculty Publications

The active phase of the East Asian summer monsoon (EASM) in Taiwan during May and June, known as Meiyu, produces substantial precipitation for water uses in all sectors of society. Following a companion study that analysed the historical increase in the Meiyu precipitation, the present study conducted model evaluation and diagnosis based on the EASM lifecycle over Taiwan. Higher and lower skill groups were identified from 17 Couple Model Intercomparison Project Phase 5 (CMIP5) models, with five models in each group. Despite the difference in model performance, both groups projected a substantial increase in the Meiyu precipitation over Taiwan. …


Cooperative Extension And Sustainability Outreach: Programmatic Successes, Administrative Support, And Areas For Improvement, Roslynn Brain Mccann, Mark Apel, Clark Dove, Ramona Madhosingh-Hector, Jennison Kipp Searcy, David Kay Feb 2020

Cooperative Extension And Sustainability Outreach: Programmatic Successes, Administrative Support, And Areas For Improvement, Roslynn Brain Mccann, Mark Apel, Clark Dove, Ramona Madhosingh-Hector, Jennison Kipp Searcy, David Kay

Extension Research

According to the 2018 Intergovernmental Panel on Climate Change, without urgent global changes, climate catastrophe caused by warming of greater than 1.5°C will occur by 2030, endangering the planet's capacity to sustain human populations and livelihoods. The National Network for Sustainable Living Education administered a national survey in January 2017 to assess how well-positioned Extension is to address sustainability in the communities the organization serves. Educators from 40 states responded, and 1,395 usable surveys were received. Survey results will help Extension employees discover opportunities for innovation and relevancy in their programming.


Perspectives Of Global Warming, Diomaris Padilla Dr. Jan 2020

Perspectives Of Global Warming, Diomaris Padilla Dr.

Open Educational Resources

This course is designed to foster an interest in global environmental issues by informing the student of both the anthropogenic and natural causes for climate change. While focusing on the scientific aspects of climate change, a broader study will include issues pertaining to global policy and economics in order to engage the student in public policy debates.


Local Adaptation Constrains Drought Tolerance In A Tropical Foundation Tree, Kasey E. Barton, Casey Jones, Kyle F. Edwards, Aaron B. Shiels, Tiffany Knight Jan 2020

Local Adaptation Constrains Drought Tolerance In A Tropical Foundation Tree, Kasey E. Barton, Casey Jones, Kyle F. Edwards, Aaron B. Shiels, Tiffany Knight

USDA Wildlife Services: Staff Publications

  1. Plant species with broad climatic ranges might be more vulnerable to climate change than previously appreciated due to intraspecific variation in climatic stress tolerance. In tropical forests, drought is increasingly frequent and severe, causing widespread declines and altering community dynamics. Yet, little is known about whether foundation tropical trees vary in drought tolerance throughout their distributions, and how intraspecific variation in drought tolerance might contribute to their vulnerability to climate changE.
  2. We tested for local adaptation in seedling emergence and establishment with a full-factorial reciprocal transplant experiment including 27 populations and 109,350 seeds along a 3,500 mm precipitation gradient for …


Assessing The Hierarchy Of Long-Term Environmental Controls On Diatom Communities Of Yellowstone National Park Using Lacustrine Sediment Records, Victoria Chraibi, Sherilyn C. Fritz Jan 2020

Assessing The Hierarchy Of Long-Term Environmental Controls On Diatom Communities Of Yellowstone National Park Using Lacustrine Sediment Records, Victoria Chraibi, Sherilyn C. Fritz

Department of Earth and Atmospheric Sciences: Faculty Publications

An ecosystem’s ability to maintain structure and function following disturbance, defined as resilience, is influenced by a hierarchy of environmental controls, including climate, surface cover, and ecological relationships that shape biological community composition and productivity. This study examined lacustrine sediment records of naturally fishless lakes in Yellowstone National Park to reconstruct the response of aquatic communities to climate and trophic cascades from fish stocking. Sediment records of diatom algae did not exhibit a distinct response to fish stocking in terms of assemblage or algal productivity. Instead, 3 of 4 lakes underwent a shift to dominance by benthic diatom species from …


No Evidence Of Fine Scale Thermal Adaption In Green Turtles, Taylor Apter Jan 2020

No Evidence Of Fine Scale Thermal Adaption In Green Turtles, Taylor Apter

Scientific Communication News

No abstract provided.


Bridging The Food Gap: Founding And Sustaining A Food Recovery Network Chapter At Wku, Elaine Losekamp Jan 2020

Bridging The Food Gap: Founding And Sustaining A Food Recovery Network Chapter At Wku, Elaine Losekamp

Mahurin Honors College Capstone Experience/Thesis Projects

Food waste is a pervasive global issue with many environmental and social repercussions. While about one-third of all food produced for human consumption goes to waste, many people in the United States and the world are affected by food insecurity. Food recovery, the process of rescuing edible food that would otherwise go to waste and delivering to hungry people, is an effective solution for both food waste and food insecurity. The author of this capstone created a food recovery program at Western Kentucky University (WKU) in January 2019 and has grown the program’s scope and impact since that time. This …