40 results match your criteria: "Aiken Center[Affiliation]"

Conservationists spend considerable resources to create and enhance wildlife habitat. Monitoring how species respond to these efforts helps managers allocate limited resources. However, monitoring efforts often encounter logistical challenges that are exacerbated as geographic extent increases.

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A simple method for estimating the coarse lateral root biomass of shrubs using ground-penetrating radar: Validation by Caragana microphylla Lam. in Inner Mongolia.

Sci Total Environ

April 2024

State Key Laboratory of Remote Sensing Science, Faculty of Geographical Science, Institute of Remote Sensing Science and Engineering, Beijing Normal University, Beijing 100875, China.

The potential increases in carbon stocks in arid regions due to recent shrub encroachment have attracted extensive interest among both ecologists and carbon policy analysts. Quantifying the shrub root biomass amount in these ecosystems is essential to understanding the ecological changes occurring. In this paper, we proposed a simple nondestructive method for estimating the coarse lateral root biomass of shrubs based on the root counts obtained from ground-penetrating radar (GPR) radargrams.

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Black men experience high rates of adverse health that can be prevented or mitigated by the regular use of preventive health services. Efforts are urgently needed to promote this type of health service use among Black men. The U.

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In this study, we examine cases of food insecurity and food justice issues in Vermont's environmentally vulnerable communities. Using a structured door-to-door survey (n = 569), semi-structured interviews (n = 32), and focus groups (n = 5), we demonstrate that: (1) food insecurity in Vermont's environmentally vulnerable communities is prominent and intersects with socioeconomic factors such as race and income, (2) food and social assistance programs need to be more accessible and address vicious cycles of multiple injustices, (3) an intersectional approach beyond distribution is required to address food justice issues in environmentally vulnerable communities, and (4) paying attention to broader contextual and environmental factors may provide a more nuanced approach to understanding food justice.

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Large carnivores are experiencing range contraction and population declines globally. Prey depletion due to illegal offtake is considered a major contributor, but the effects of prey depletion on large carnivore demography are rarely tested. We measured African lion density and tested the factors that affect survival using mark-recapture models fit to six years of data from known individuals in Kafue National Park (KNP), Zambia.

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Forest density intensifies the importance of snowpack to growth in water-limited pine forests.

Ecol Appl

January 2021

USDA Forest Service, Rocky Mountain Research Station, 240 West Prospect Road, Fort Collins, Colorado, 80526, USA.

Warming climate and resulting declines in seasonal snowpack have been associated with drought stress and tree mortality in seasonally snow-covered watersheds worldwide. Meanwhile, increasing forest density has further exacerbated drought stress due to intensified tree-tree competition. Using a uniquely detailed data set of population-level forest growth (n = 2,495 sampled trees), we examined how inter-annual variability in growth relates to snow volume across a range of forest densities (e.

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What's in Your Body of Water? A Pilot Study Using Metaphoric Framing to Reduce the Psychological Distance in Pharmaceutical Pollution Risk Communication.

Environ Manage

May 2020

Professor of Environmental Thought and Culture, Rubenstein School of Environment and Natural Resources, University of Vermont, 211 Bittersweet House, 153 South Prospect St., Burlington, VT, 05401, USA.

Aquatic pharmaceutical pollution poses ecotoxicological risks to the environment and human health. Consumer pharmaceutical use and disposal behaviors represent a significant source of pharmaceutical compounds in surface waters, and communication strategies are needed to promote pro-environmental behaviors to reduce pharmaceutical pollution. Designing effective risk communication campaigns requires an understanding of public perceptions of aquatic pharmaceutical pollution.

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Central American (CA) and Breeding Stock-G (BSG) humpback whales are known to winter off Caño Island, Costa Rica at different times of the year. To study their singing behavior, autonomous underwater recorders were used to record the whales. Song detection for BSG whales was higher than CA whales, and song structure was distinct for each population.

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Residential household yard care practices along urban-exurban gradients in six climatically-diverse U.S. metropolitan areas.

PLoS One

March 2020

University of Vermont, Spatial Analysis Lab, Rubenstein School of Environment and Natural Resources, Aiken Center, Burlington, VT, United States of America.

Residential land is expanding in the United States, and lawn now covers more area than the country's leading irrigated crop by area. Given that lawns are widespread across diverse climatic regions and there is rising concern about the environmental impacts associated with their management, there is a clear need to understand the geographic variation, drivers, and outcomes of common yard care practices. We hypothesized that 1) income, age, and the number of neighbors known by name will be positively associated with the odds of having irrigated, fertilized, or applied pesticides in the last year, 2) irrigation, fertilization, and pesticide application will vary quadratically with population density, with the highest odds in suburban areas, and 3) the odds of irrigating will vary by climate, but fertilization and pesticide application will not.

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Breathing the same air? Socioeconomic disparities in PM exposure and the potential benefits from air filtration.

Sci Total Environ

March 2019

Gund Institute/Rubenstein School of Environment and Natural Resources, University of Vermont, Aiken Center, 81 Carrigan Drive, Burlington, VT 05405, USA.

Air pollution caused by particulate matter <2.5 μm in diameter (PM) imposes a severe health burden to people worldwide. Across the globe, and even within cities, the health burden of air pollution is not equally shared by citizens.

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Dynamic wildlife occupancy models using automated acoustic monitoring data.

Ecol Appl

April 2019

U.S. Geological Survey, Vermont Cooperative Fish and Wildlife Research Unit, Rubenstein School of Environment and Natural Resources, University of Vermont, Burlington, VT 05405, USA.

Automated acoustic monitoring of wildlife has been used to characterize populations of sound-producing species across large spatial scales. However, false negatives and false positives produced by automated detection systems can compromise the utility of these data for researchers and land managers, particularly for research programs endeavoring to describe colonization and extinction dynamics that inform land use decision-making. To investigate the suitability of automated acoustic monitoring for dynamic occurrence models, we simulated underlying occurrence dynamics, calling patterns, and the automated acoustic detection process for a hypothetical species under a range of scenarios.

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Patterns and drivers of recent disturbances across the temperate forest biome.

Nat Commun

October 2018

University of Natural Resources and Life Sciences (BOKU) Vienna, Institute of Silviculture, Peter Jordan Straße 82, 1190, Wien, Austria.

Increasing evidence indicates that forest disturbances are changing in response to global change, yet local variability in disturbance remains high. We quantified this considerable variability and analyzed whether recent disturbance episodes around the globe were consistently driven by climate, and if human influence modulates patterns of forest disturbance. We combined remote sensing data on recent (2001-2014) disturbances with in-depth local information for 50 protected landscapes and their surroundings across the temperate biome.

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Micronutrient deficiency affects about a third of the world's population. Children in developing countries are particularly vulnerable. Consequences include impaired cognitive and physical development and increased childhood morbidity and mortality.

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The field of cultural ecosystem services (CES) explores the non-material benefits that ecosystems provide to people. Human perceptions and valuations change, for many reasons and in many ways; research on CES, however, rarely accounts for this dynamism. In an almost entirely separate academic world, research on environmental education (EE) explores how EE programming affects peoples' attitudes and values toward the natural world.

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Diarrheal disease (DD) due to contaminated water is a major cause of child mortality globally. Forests and wetlands can provide ecosystem services that help maintain water quality. To understand the connections between land cover and childhood DD, we compiled a database of 293,362 children in 35 countries with information on health, socioeconomic factors, climate, and watershed condition.

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Social-ecological innovation in remote mountain areas: Adaptive responses of forest-dependent communities to the challenges of a changing world.

Sci Total Environ

February 2018

University of Vermont, Rubenstein School of Environment and Natural Resources, 312C Aiken Center, 81 Carrigan Drive, Burlington, VT 05405, United States; The Pennsylvania State University, College of Agricultural Sciences, 106 Ag. Admin Building, University Park PA16802-2600, United States. Electronic address:

To better understand how constantly changing human-environment interactions could be better organized to respond to current challenges, we examined the Ukrainian Carpathians as an example case of complex forest social-ecological systems (FSES). We did it by interviewing diverse and relevant local stakeholder (N=450). In particular, we strived to: i) outline how people and nature are linked and interact in coupled FSES; ii) examine the preferences of stakeholders on the forests and associated ecosystem services (ES); iii) map key drivers threatening well-being of FSES and iv) identify potential responses to address the challenges at a local scale.

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Studies of trophic-level material and energy transfers are central to ecology. The use of isotopic tracers has now made it possible to measure trophic transfer efficiencies of important nutrients and to better understand how these materials move through food webs. We analyzed data from thirteen N-ammonium tracer addition experiments to quantify N transfer from basal resources to animals in headwater streams with varying physical, chemical, and biological features.

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Changes in the frequency, duration, and severity of climate extremes are forecast to occur under global climate change. The impacts of climate extremes on forest productivity and health remain difficult to predict due to potential interactions with disturbance events and forest dynamics-changes in forest stand composition, density, size and age structure over time. Such interactions may lead to non-linear forest growth responses to climate involving thresholds and lag effects.

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Ecosystem carbon density and allocation across a chronosequence of longleaf pine forests.

Ecol Appl

January 2017

Center for Longleaf Pine Ecosystems, School of Forestry and Wildlife Sciences, Auburn University, Auburn, Alabama, 36849, USA.

Forests can partially offset greenhouse gas emissions and contribute to climate change mitigation, mainly through increases in live biomass. We quantified carbon (C) density in 20 managed longleaf pine (Pinus palustris Mill.) forests ranging in age from 5 to 118 years located across the southeastern United States and estimated above- and belowground C trajectories.

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Desert pastoralists' negative and positive effects on rare wildlife in the Gobi.

Conserv Biol

April 2017

Wildlife Conservation Society, 2300 Southern Boulevard, Bronx, NY, 10460, U.S.A.

In arid regions of the developing world, pastoralists and livestock commonly inhabit protected areas, resulting in human-wildlife conflict. Conflict is inextricably linked to the ecological processes shaping relationships between pastoralists and native herbivores and carnivores. To elucidate relationships underpinning human-wildlife conflict, we synthesized 15 years of ecological and ethnographic data from Ikh Nart Nature Reserve in Mongolia's Gobi steppe.

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The purpose of this study was to enhance the understanding of the health-promoting potential of trees in an urbanized region of the United States. This was done using high-resolution LiDAR and imagery data to quantify tree cover within 250m of the residence of 7910 adult participants in the California Health Interview Survey, then testing for main and mediating associations between tree cover and multiple health measures. The results indicated that more neighborhood tree cover, independent from green space access, was related to better overall health, primarily mediated by lower overweight/obesity and better social cohesion, and to a lesser extent by less type 2 diabetes, high blood pressure, and asthma.

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Comparative assessment of methods for estimating tree canopy cover across a rural-to-urban gradient in the mid-Atlantic region of the USA.

Environ Monit Assess

May 2016

Forest Inventory and Analysis, USDA Forest Service, Northern Research Station, 11 Campus Blvd, Suite 200, Newtown Square, PA, 19073, USA.

Tree canopy cover significantly affects human and wildlife habitats, local hydrology, carbon cycles, fire behavior, and ecosystem services of all types. In addition, changes in tree canopy cover are both indicators and consequences of a wide variety of disturbances from urban development to climate change. There is growing demand for this information nationwide and across all land uses.

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The Geography of Gender Inequality.

PLoS One

July 2016

World Wildlife Fund, Washington, DC, United States of America.

Reducing gender inequality is a major policy concern worldwide, and one of the Sustainable Development Goals. However, our understanding of the magnitude and spatial distribution of gender inequality results either from limited-scale case studies or from national-level statistics. Here, we produce the first high resolution map of gender inequality by analyzing over 689,000 households in 47 countries.

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We synthesize insights from current understanding of drought impacts at stand-to-biogeographic scales, including management options, and we identify challenges to be addressed with new research. Large stand-level shifts underway in western forests already are showing the importance of interactions involving drought, insects, and fire. Diebacks, changes in composition and structure, and shifting range limits are widely observed.

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As global temperatures rise, variation in annual climate is also changing, with unknown consequences for forest biomes. Growing forests have the ability to capture atmospheric CO2 and thereby slow rising CO2 concentrations. Forests' ongoing ability to sequester C depends on how tree communities respond to changes in climate variation.

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