A5036903775- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Fish Ecology and Management Studies
- Ecology and Vegetation Dynamics Studies
- Rangeland and Wildlife Management
- Wildlife-Road Interactions and Conservation
- Primate Behavior and Ecology
- Avian ecology and behavior
- Aquatic Invertebrate Ecology and Behavior
- Land Use and Ecosystem Services
- Ecology and biodiversity studies
- Economic and Environmental Valuation
- Forest Management and Policy
- Hydrology and Sediment Transport Processes
- Aquatic Ecosystems and Phytoplankton Dynamics
- Plant and animal studies
- Isotope Analysis in Ecology
- Fire effects on ecosystems
- Coastal wetland ecosystem dynamics
- Soil and Water Nutrient Dynamics
- Marine and fisheries research
- Hydrology and Watershed Management Studies
- Urban Green Space and Health
- Recreation, Leisure, Wilderness Management
- Marine animal studies overview
University of Georgia
2015-2024
Clemson University
2014
Natural Resources Conservation Service
2012
Georgia College & State University
2007
University of Wyoming
1998
University of Wisconsin–Madison
1996
Wisconsin Department of Natural Resources
1995
A 10‐yr record of the thermal characteristics four lakes at North‐Temperate Lakes Long‐Term Ecological Research site was analyzed and used to validate simulations lake physics with dynamic reservoir simulation model. Simulations cool, warm, intermediate years were rerun meteorology from general circulation models a doubling CO 2 . In all doubled there is an earlier onset stratification, increased summer epilimnetic temperature (1–7°C), intensity longer duration stratification. Maximum...
Significant shifts in climate are considered a threat to plants and animals with significant physiological limitations limited dispersal abilities. The southern Appalachian Mountains global hotspot for plethodontid salamander diversity. Plethodontids lungless ectotherms, so their ecology is strongly governed by temperature precipitation. Many species Appalachia exist high elevation habitats that may be at or near thermal maxima, also have abilities across warmer valley bottoms.
Wind energy offers the potential to reduce carbon emissions while increasing independence and bolstering economic development. However, wind has a larger land footprint per Gigawatt (GW) than most other forms of production, making appropriate siting mitigation particularly important. Species that require large unfragmented habitats those known avoid vertical structures are at risk from Developing on disturbed lands rather placing new developments within intact would cumulative impacts...
Summary We tested the hypothesis that wolves are reducing local browse intensity by white‐tailed deer, thus indirectly mitigating biotic impoverishment of understorey plant communities in northern Wisconsin. To assess potential for such a top‐down trophic cascade response, we developed spatially and temporally explicit model wolf territory occupancy based on three decades monitoring data. Using nested multiscale vegetation survey protocol, compared white cedar wetlands found high areas with...
Macrophyte harvesting often has been suggested as a way to improve fish growth and size structure in lakes with high densities of submergent macrophytes stunted populations. However, previous experimental tests have provided no clear consensus on whether the technique works for management. We conducted series whole-lake manipulations test effects macrophyte removal bluegill largemouth bass. selected four southern central Wisconsin manipulation nine others controls. In August 1994, we removed...
Summary Roads are pervasive fixtures on most landscapes but typically among many factors contributing to wildlife population declines. Addressing road mortality as part of larger conservation efforts is challenging because it can be difficult measure per capita from roads and other concurrent threats. We used 4 years mark–recapture–recovery data for diamondback terrapins M alaclemys terrapin a causeway in G eorgia, USA , directly estimate threats adult nest predation, contrast the...
Stream size interacted with mean July air temperature to influence the distribution of brown trout (Salmo trutta) in southeastern Wyoming streams. The geographic range was positively associated temperatures 19-22°C. Within this thermal zone, were more likely occur large streams (>4 m wetted width) than small We used a information system examine spatial patterns anomalous sites (i.e., predicted have but which lacked species). Sites that contained brook (Salvelinus fontinalis) tended be on...
Soil C sequestration is a potential method to reduce increasing atmospheric concentrations of CO 2 , greenhouse gas. represents significant portion total in landscape, although spatial variation can complicate predictions soil contents and its change, particularly for projects. Quantifying variability different landscapes may allow adjustment sampling intensities improve estimation efficiency, thus facilitating change detection. This study used semivariogram analysis quantify autocorrelation...
Climate change has caused shifts in species' ranges and extinctions of high-latitude altitude species. Most cold-tolerant evergreen broadleaved woody plants (shortened to cold-evergreens below) are rare species occurring a few sites the alpine subalpine zones Korean Peninsula. The aim this research is 1) identify climate factors controlling range Peninsula; 2) predict effects on cold-evergreens. We used multimodel inference based combinations variables develop distribution models at...
Summary Road mortality is a major component of human impacts on wildlife populations, and the pervasiveness roads landscape presents substantial challenge for managing those impacts. The feasibility methods to reduce road depends degree which this threat spatially or temporally concentrated, can be based habitat, activities species' ecology. Diamondback terrapins M alaclemys terrapin are species conservation concern across their range, contributing local population declines. We used...
Abstract Climate change is driving shifts in the distribution of plants and animals, prioritizing management actions for such a necessary but technically difficult challenge. We worked with state agencies southeastern United States to identify high-priority amphibian species, model vulnerabilities those species regional climate change, long-term climatic refugia within context existing conservation lands. Directly interfacing natural resource experts ensured that 1) prioritization schemes...
Vercoe, R. A., M. Welch-Devine, D. Hardy, J. A. Demoss, S. N. Bonney, K. Allen, P. Brosius, Charles, B. Crawford, Heisel, Heynen, G. De Jesús-Crespo, Nibbelink, L. Parker, C. Pringle, Shaw, and Van Sant. 2014. Acknowledging trade-offs understanding complexity: exurbanization issues in Macon County, North Carolina. Ecology Society 19(1): 23. https://doi.org/10.5751/ES-05970-190123
Ecosystem specialists are predicted to be more vulnerable global change than generalists, but whether within an ecosystem will respond similarly those changes is often largely unknown. Will track in their habitats as a group, or distributions governed by landscape gradients that make some species sensitive habitat changes? In this study, we forecasted the effects of sea level rise (SLR) on two salt marsh specialist bird species: clapper rails Rallus crepitans and seaside sparrows Ammodramus...
Civil infrastructure will be essential to face the interlinked existential threats of climate change and rising resource demands while ensuring a livable Anthropocene for all. However, conventional planning largely neglects contributions maintenance Earth’s ecological life support systems, which provide irreplaceable services supporting human well-being. The stability performance these depend on biodiversity, but practices, narrowly focused controlling natural capital, have inadvertently...
Accurate estimates of soil carbon (C) contents over large spatial scales require extensive sampling and are susceptible to error associated with landscape variability. Various methods minimize have been posed, including conditioned Latin hypercube (cLHS). The potential advantage cLHS is that it uses existing ancillary data in geographic information systems select stratified random samples. Although the theoretical basis for has demonstrated, few empirical evaluations performed. This study...
Monarch butterflies ( Danaus plexippus ) in eastern North America must make frequent stops to rest and refuel during their annual migration. During these stopovers, monarchs form communal roosts, which are often observed by laypersons. Journey is a citizen science program that compiles roost observations, we examined data an attempt identify habitat characteristics of roosts. From each observation extracted information on the type vegetation used, used GIS national landcover set determine...
Abstract Species distribution models have been applied across a wide range of spatial scales to generate information for conservation planning. Understanding how well transfer through space and time is important promote effective species–habitat conservation. Here, we assess model transferability in coastal tidal marshes the southeastern United States using count data widespread marsh bird: Clapper Rail ( Rallus crepitans ). We developed at state level both South Carolina Georgia, then...
We explored the interacting effects of marine-derived nutrient fertilization and physical disturbance introduced by coastal river otters (Lontra canadensis) on production status pristine shrub tree communities in Prince William Sound, Alaska, USA. compared trees shrubs between latrines non-latrines, while accounting for otter site selection, sampling areas off sites. Nitrogen stable isotope analysis (delta15N) indicated that dominant species assimilated N excreted otters. In association with...