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Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts Fort Collins Science Center Brian E Reichert U.S. Geological Survey James H Cox III Bethany R Straw More... Categories Data (9) Data Release - Revised (2) Tag Types Theme (17) Place (17) Harvest Set (11) Tag Schemes None (13) USGS Thesaurus (9) Common geographic areas (9) ISO 19115 Topic Category (16) USGS Biocomplexity Thesaurus (1) View Results as: JSON ATOM CSV

Metrics of individual and demographic stress in the invasive Brown treesnake on Guam from 1992-2018 This project contains five datasets which are reported in "Understanding metrics of stress in the context of invasion history: the case of the brown treesnake (Boiga irregularis)". Overall, this dataset describes metrics of individual and demographic stress (baseline and 1 hour post-capture corticosterone, body condition, and bacterial killing ability) in the invasive snake Boiga irregularis on Guam collected in intervals of 10-15 years from 1992 to 2018. It also contains corticosterone values obtained from different methods of measuring hormones ( radioimmunoassay; RIA versus enzyme immunoassay; EIA) for 2018 data. The first dataset is from the file "boiga_18cort_method.csv", which contains baseline and 1 hour-after-capture... Categories: Data; Tags: Guam, USGS Science Data Catalog (SDC), biota, ecology, invasive species, All tags... physiology, Fewer tags Genotypes and cluster definitions for a range-wide greater sage-grouse dataset collected 2005-2017 (ver 1.1, January 2023) Monitoring change in genetic diversity in wildlife populations across multiple scales could facilitate prioritization of conservation efforts. We used microsatellite genotypes from 7,080 previously collected genetic samples from across the greater sage-grouse (Centrocercus urophasianus) range to develop a modelling framework for estimating genetic diversity within a recently developed hierarchically nested monitoring framework (clusters). The majority of these genetic samples (n=6560) were used in previous research (Oyler-McCance et al. 2014; Cross et. al 2018; Row et. al. 2018). Genetic diversity values associated with clusters across multiple scales could facilitate the identification of areas with low genetic... Categories: Data; Tags: California, Canada, Colorado, Idaho, Montana, All tags... Nevada, North Dakota, Oregon, Saskatchewan, South Dakota, USGS Science Data Catalog (SDC), Utah, Washington, Wyoming, biota, birds, genetics, greater sage-grouse, microsatellites, western United States, Fewer tags GPS locations of feral horses in Utah, USA, from 2016-2020 Data represent locations of mares and stallions in Utah. Data were collected using GPS radio collars on mares or tail transmitters braided into the tails of stallions, at a 2-hour fix rate for a period spanning 2016 to 2020. Horses were located at Conger Herd Management Area (HMA) or Frisco HMA in the Great Basin ecosystem of Utah, USA. Categories: Data; Tags: Conger Herd Management Area, Frisco Herd Management Area, North America, USGS Science Data Catalog (SDC), Utah, All tags... biological population management, ecosystem management, health, terrestrial ecosystems, Fewer tags Genetic data and genetic network attributes for rangewide Greater Sage-grouse network constructed in 2018 (ver. 2.0, December 2022) Genetic networks can characterize complex genetic relationships among groups of individuals, which can be used to rank nodes most important to the overall connectivity of the system. Ranking allows scarce resources to be guided towards nodes integral to connectivity. The greater sage-grouse (Centrocercus urophasianus) is a species of conservation concern that breeds on spatially discrete leks that must remain connected by genetic exchange for population persistence. We genotyped 5,950 individuals, from 1,200 greater sage-grouse leks distributed across the entire species’ geographic range. We found a small world network composed of 458 nodes connected by 14,481 edges that are described here. The files associated... Categories: Data, Data Release - Revised; Tags: USGS Science Data Catalog (SDC), Western North America, biological population management, biota, centrality, All tags... genetic diversity, graph theory, multi-scale conservation prioritization, network theory, Fewer tags Field measurements, laboratory, and field experimental data for Sky Pond, Rocky Mountain National Park Colorado, nutrient and warming study, 2015-2017 The data include measurements of chlorophyll a and algal stoichiometry from benthic algae collected from Sky Pond, Rocky Mountain National Park, Colorado, in 2015-2017; results of nutrient diffusion experiments in Sky Pond including chlorophyll a and other pigments to identify chlorophytes, bacillariophytes, and myxomycetes, and results of a laboratory incubation using benthic chlorophytes to identify ecosystem responses (nitrogen uptake, net primary productivity, ecosystem respiration, net ecosystem productivity, and dissolved organic carbon production) under nutrient and temperature treatments. Categories: Data; Tags: Colorado, Rocky Mountain, Rocky Mountain National Park, USGS Science Data Catalog (SDC), algae, All tags... aquatic ecosystems, benthic ecosystems, nitrogen, nutrient content (water), periphyton, Fewer tags Spatial layers generated by the Prioritizing Restoration of Sagebrush Ecosystems Tool (PReSET) applied in Southern Wyoming All data layers included in this data release were created using the Prioritizing Restoration of Sagebrush Ecosystems Tool (PReSET) tool, which relies on spatial inputs on species distributions and likelihood of restoration success to select parcels for sagebrush restoration. The PReSET is a workflow that relies on the prioritizr package in program R to identify parcels for effective and meaningful sagebrush restoration.Inputs into the tool included occupancy data layers for six focal species (Brewer’s sparrow (Spizella breweri), sagebrush sparrow (Artemisiospiza nevadensis), sage thrasher (Oreoscoptes montanus), greater sage-grouse (Centrocercus urophasianus), pronghorn (Antilocapra americana) and greater short-horned... Tags: Southern Wyoming, USGS Science Data Catalog (SDC), USGS-CC Sage Steppe, USGS-EMA-LOW Management and Restoration, USGS-EMA-LOW Priority Landscapes, All tags... USGS-EMA-LOW-FWD Risk Assessment, Decision Science, Forecasting, USGS-EMA-LOW-IS Ecology and/or Impacts, USGS-EMA-LOW-MR Landscape Ecology, USGS-EMA-LOW-PL Wyoming LCI, USGS-EMA-LOW-SB SMC: Greater sage-grouse, USGS-EMA-LOW-SB SMC: Migratory birds, USGS-EMA-LOW-SB SMC: Multi-species, WLCI, Wyoming, Wyoming Landscape Conservation Initiative, biota, multi-species management, restoration, sagebrush, spatial conservation prioritization, Fewer tags North American Grid-Based Offshore Sampling Frame: Mexico This shapefile represents the offshore grid-based sampling frame intended for use with the North American Bat Monitoring Program (NABat). The grid consists of 10 km x 10 km cells spanning the oceanic waters surrounding Mexico. Tags: Mexico, NABat, North America, bats, biota, All tags... grid, sample frame, Fewer tags Hatchling Growth Experiment Dataset from Invasive Burmese Pythons Captured in 2015 in Southern Florida This dataset contains information about 58 hatchling Burmese pythons collected in 2015 from an invasive population in southern Florida. These hatchlings were used in an experiment that assessed the effects of food availability, clutch, and sex on their growth in captivity. The hatchlings were collected as eggs from the nests of two wild pythons, assigned to High or Low feeding treatments, and their growth and meal consumption were monitored for 12 weeks. The dataset includes their hatch dates, feeding treatment groups, clutch designations, sex, weekly morphometric measurements, feeding activity, and feeding behavior. Categories: Data; Tags: Collier County, Florida, Everglades, Southern Florida, biota, herpetology, All tags... invasive species, morphology (biological), organism growth and development, Fewer tags North American Grid-Based Offshore Sampling Frame: Alaska and Canada This shapefile represents the offshore grid-based sampling frame intended for use with the North American Bat Monitoring Program (NABat). The grid consists of 10 km x 10 km cells spanning the oceanic waters surrounding Alaska and Canada. Tags: Alaska, Canada, NABat, North America, bats, All tags... biota, grid, sample frame, Fewer tags North American Grid-Based Offshore Sampling Frame: Hawaii This shapefile represents the offshore grid-based sampling frame intended for use with the North American Bat Monitoring Program (NABat). The grid consists of 10 km x 10 km cells spanning the oceanic waters surrounding Hawaii. Tags: Hawaii, NABat, North America, bats, biota, All tags... grid, sample frame, Fewer tags Genetic and functional connectivity data for greater sage-grouse across the species range generated 2005–2015 (ver. 2.0, December 2022) Functional connectivity, quantified using landscape genetics, can inform conservation through the identification of factors linking genetic structure to landscape mechanisms. We used breeding habitat metrics, landscape attributes, and indices of grouse abundance, to compare fit between structural connectivity and genetic differentiation within five long-established Sage-Grouse Management Zones (MZ) I–V using microsatellite genotypes from 6,009 greater sage-grouse (Centrocercus urophasianus) collected across their range. We estimated structural connectivity using a circuit theory-based approach where we built resistance surfaces using thresholds dividing the landscape into “habitat” and “nonhabitat” and nodes were... Categories: Data, Data Release - Revised; Tags: USGS Science Data Catalog (SDC), Western North America, biota, landscape genetics North American Grid-Based Offshore Sampling Frame: Caribbean This shapefile represents the offshore grid-based sampling frame intended for use with the North American Bat Monitoring Program (NABat). The grid consists of 10 km x 10 km cells spanning the oceanic waters in the Caribbean Sea. Tags: Bahamas, Caribbean Sea, Cuba, Jamaica, NABat, All tags... North America, Puerto Rico, bats, biota, grid, sample frame, Fewer tags Second Iteration of Range Wide Lesser Prairie Chicken Lek Habitat Suitability in 2019, Predicted in Southern Great Plains We developed a second iteration of habitat suitability models for Lesser Prairie Chicken leks, across their range. The first modeling iteration used lek data collected from 2002 to 2012, land cover data ranging from 2001 to 2013, and anthropogenic features from 2011. Our second iteration model used occurrence points from new lek surveys (2015 to 2019) and updated predictor layers to evaluate changes in lek suitability and to quantify current range-wide habitat suitability. We created suitability models from 2 predictor sets: one including all predictors, and the other excluding state as a predictor. All 11 predictors included in the "with state" predictor set were: average Enhanced Vegetation Index (EVI), distance... Tags: Colorado, Kansas, New Mexico, Oklahoma, SAHM, All tags... Software for Assisted Habitat Modeling, Southern Great Plains, Species distribution modeling, Texas, USGS Science Data Catalog (SDC), VisTrails, biota, conservation planning, habitat suitability, prairie grouse, Fewer tags North American Grid-Based Offshore Sampling Frame: Continental United States This shapefile represents the offshore grid-based sampling frame intended for use with the North American Bat Monitoring Program (NABat). The grid consists of 10 km x 10 km cells spanning the oceanic waters surrounding the continental United States. Tags: NABat, North America, United States, bats, biota, All tags... grid, sample frame, Fewer tags Spatial mark-recapture and chew card rat data on Guam and Rota, 2018-2019 We provide four datasets: Mark recapture and trapping effort, Grid layout, Chew cards, and Trail camera validation. Mark recapture and trapping effort has one row for every live-trap night, including the unique grid identification code, date of trap check, cumulative rain amount from the 24-hr period before the trap check, unique trap identification, trap status, unique individual rat identification (ID) and associated morphometrics, and rat fate. Grid layout includes the unique grid identification code, unique trap identification, and GPS coordinates of the traps. Chew cards has one row for every chew-card night, including the unique grid identification code, date of chew-card check, unique chew-card identification,... Categories: Data; Tags: Guam, Rota, USGS Science Data Catalog (SDC), biota, relative abundance analysis, All tags... wildlife population management, Fewer tags Genetic variation in hoary bats (Lasiurus cinereus) assessed from archived samples Hoary bats are among the bat species most commonly killed by turbine strikes in the midwestern United States. The impact of this mortality on species census size is not understood, due in part to the difficulty of estimating population size for this highly migratory and elusive species. Genetic effective population size (Ne) could provide an index of census population size if other factors affecting Ne are stable. In support of this and other population-genetic studies, we analyzed two temporally spaced cohorts: 96 hoary bats collected in 2009-2010 and an additional 96 collected in 2017-2018. Samples consisted of wing clips removed from archived carcasses and were obtained by agreement from the U.S. Fish and Wildlife... Tags: Indiana, USGS Science Data Catalog (SDC), bats, biota, genetics Brown Treesnake Mortality Habitat Management Unit Guam 2019 The dataset contains 16 columns of data collected on invasive Brown Treesnakes (Boiga irregularis) at a study site known as the Habitat Management Unit (HMU) in northern Guam. Snakes were fitted with radio-transmitters and teams of 2-4 biologist listened for signals from transmitters every seven days to determine if snakes were alive or dead. Survival data was then modeled in Program MARK to assess the effect of aerially applied toxic baits on snake mortality, including the effect of snake size covariates. In addition, this dataset contains snake capture information from reference sites on Guam that was used to demonstrate that our sample was representative of the size distribution in limestone forest habitat on... Categories: Data; Tags: Boiga irregularis, Brown Treesnakes, Guam, Known Fate Model, USGS Science Data Catalog (SDC), All tags... boundaries, Fewer tags