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Folders: ROOT > ScienceBase Catalog > Eastern Ecological Science Center > Quantitative Methods & Decision Science ( Show all descendants )
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This data set is comprised of 3 files of information collected on amphibians and vernal pool habitats at Canaan Valley National Wildlife Refuge from 2004 - 2016.
Categories: Data;
Tags: Ecology,
Tucker,
USGS Science Data Catalog (SDC),
West Virginia,
Wildlife Biology,
We conducted ground-based surveys at 589 randomly selected 16-ha plots on the Yukon-Kuskokwim Delta, Alaska during 2015-2016. The plots were selected using a stratified random sampling plan in an area of 35,769 square km divided into 8 physiographic strata. The population totals from the stratified random design estimators were adjusted using detection ratios derived with a double sampling protocol (Bart and Earnst 2002) on a subset of plots in Alaska.The subset of plots used for double sampling included 17 study plots on the Yukon Delta National Wildlife Refuge (9 plots in 2001-2002 [McCaffery et al. 2012] and 8 plots in 2016), and 33 plots located on the North Slope of Alaska (Utqiaġvik [6 plots, 2014–2015], the...
This data set is comprised of four files related to the counts of amphibian species in the National Capital Region of the United States. Data was obtained from surveys of both lentic (wetland) and lotic (stream) sites within national parks.
Includes data used to estimate population demographic parameters for an exemplary high-elevation amphibian species, the federally endangered Shenandoah salamander (Plethodon shenandoah). These parameters were entered into a Markov projection model which we used to forecast the future population status of the Shenandoah salamander.
Categories: Data;
Tags: Ecology,
Shenandoah National Park,
USGS Science Data Catalog (SDC),
Wildlife Biology,
Wildlife Biology,
We conducted population and habitat assessments for Mountain Plovers in Texas during winters of 2019 and 2020. We used roadside surveys and distance-sampling to estimate bird density and calculate population totals for the study area, which included parts of five ecoregions (Chihuahuan Deserts, High Plains, Central Great Plains, Southern Texas Plains, Texas Blackland Prairies, and Western Gulf Coastal Plain). In 2019, we surveyed 103 transects along 3,032 km (1,884 mi) and, in 2020, we surveyed 152 transects along 4,985 km (3,098 mi). When driving along transects, we stopped every 3.2 km (2 mi) to assess habitat conditions (vegetation height, vegetation density, etc.) and land cover (National Land Cover Database...
Categories: Data;
Tags: Central Great Plains,
Charadrius montanus,
Chihuahuan Deserts,
Ecology,
High Plains,
Data contain metabolic rates of red-backed salamanders (Plethodon cinereus) exposed to different thermal regimes, and the movements of salamanders marked with PIT tags and exposed to electromagnetic fields.
Categories: Data;
Tags: Ecology,
Massachusetts,
New York,
Pennsylvania,
USGS Science Data Catalog (SDC),
The Ecology Section at the USGS Conte Laboratory has studied fish in the West Brook since 1997. The goal is to understand the strength and direction of drivers on fish growth, movement, reproduction and survival in the wild. We hope to provide a comprehensive understanding of fish population dynamics and ultimately individual fitness (natural selection and evolution) in the study area.
Data and R Code for manuscript titled "Population Dynamics and Harvest Management of Eastern Mallards"
Categories: Data;
Tags: Bayesian model selection,
Mallards,
USGS Science Data Catalog (SDC),
United States,
Wildlife Biology,
The Shenanadoah Salamander (Plethodon shenandoah) is an endangered salamander found only in the mountains of Shenandoah National Park. Field surveys of the salamander were conducted from 2007-2022 using daytime cover object surveys. In order to capture the totality of P. shendandoah’s range we sampled from low to high elevation across a broad geographic range. We created a spatial generalized additive model with aspect, latitude, longitude, and elevation and heat load index (HLI) to predict salamander occupancy and create a new range map based on our extended surveys. All spatial covariates were extracted from a 15m digital elevation model layer of Shenandoah National Park. Temperature and precipitaiton data were...
Categories: Data;
Tags: Shenandoah National Park,
USGS Science Data Catalog (SDC),
amphibian,
none,
range map,
This data set is comprised of 2 files consisting of field observations, morphological measurements, and water quality measurements relevant to a publication on the classification and population status of the WV Spring salamander, Gyrinophilius subterraneus.
Categories: Data;
Tags: Genetics,
Greenbrier,
USGS Science Data Catalog (SDC),
West Virginia,
Wildlife Biology,
This data product consists of a databases of population change and relative abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data and produced yearly. Data are presented for ~548 species of birds in spreadsheets containing trend estimates and annual indices for 2 time periods.
Categories: Data;
Tags: Birds,
Breeding Bird Density,
Canada,
Decision Science and Populations,
North American Breeding Bird Survey,
The Shenanadoah Salamander (Plethodon shenandoah) is an endangered salamander found only in the mountains of Shenandoah National Park. Field surveys of the salamander were conducted from 2007-2022 using daytime cover object surveys. In order to capture the totality of P. shendandoah’s range we sampled from low to high elevation across a broad geographic range. We created a spatial generalized additive model with aspect, latitude, longitude, and elevation and heat load index (HLI) to predict salamander occupancy and create a new range map based on our extended surveys. All spatial covariates were extracted from a 15m digital elevation model layer of Shenandoah National Park. Temperature and precipitaiton data were...
Categories: Data;
Tags: Shenandoah National Park,
USGS Science Data Catalog (SDC),
amphibian,
none,
range map,
The data set consists of capture information on individual box turtles at Patuxent Research Refuge Laurel, MD. Location, date, morphometrics, and other information.
Categories: Data;
Tags: Ecology,
Laurel MD,
Patuxent refuge,
USGS Science Data Catalog (SDC),
population dynamics
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