Data
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Effects of estrogens and atrazine on functional immune responses of largemouth bass (Micropterus salmoides)
Disease outbreaks, skin lesions, fish kill events, and reproductive abnormalities have been observed in wild populations of bass in the Chesapeake Bay watershed. Occurrence of synthetic and natural hormones from wastewater treatment plants and livestock operations, pesticides from agricultural lands, and phytoestrogens from cover crops have been implicated as potential causes of these adverse effe
Pesticide persistence in weathered avian droppings
Dataset includes: Bird body weight, Number of seeds dosed per day per bird,amount of pesticide dosed, pesticide residues on seeds, weight of treated seed dosed per day, weight of fecal sample for each sample, residue analyses of fecal samples, the weather conditions during the two weathering periods
Data to support an updated range map for Plethodon shenandoah and evaluating support for multiple models of species occurrence
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 addi
Waterfowl (Anatidae) Brood Data, Maine, 1977 – 1994
Our data include detailed information about 12 species of Anatidae broods encountered on four study areas in Maine during 1977–1994 as one dataset. The second dataset provides the characteristics of the wetlands which were monitored during the studies. The third dataset enumerates the effort (such as numbers of visits to each wetland) to determine numbers of broods and the number of young that rea
Range-wide salamander densities reveal a key component of terrestrial vertebrate biomass in eastern North American forests
These data have been collected by a collaborative and coordinated research network, SPARCnet (Salamander Population and Adaptation Research Collaboration network). We collected these data to examine patterns in seasonal and latitudinal variation in population density. This data can be used to estimate local salamander biomass, correcting for imperfect detection, and then compare these to estimates
Data for examining thermal equilibration rates of brook trout implanted with temperature recording tags and subjected to rapid and slow temperature changes
This dataset contains records from implanted and not implanted temperature logging tags, body sizes of fish implanted with temperature logging tags, times the fish/tags were transferred from one temperature to another, and the time the temperature recorded by the tag equilibrated with ambient water conditions. Data were collected to compare thermal equilibration rate of temperature recording tags
Water Chemistry and Smallmouth Bass Biological Data from Pine Creek and West Branch Mahantango Creek, Pennsylvania, 2015-2019
Monitoring wild fish health and associated exposure effects in regions where agriculture and development have impacted rivers and streams has become a valuable research tool. Smallmouth bass (Micropterus dolomieu) are a sensitive, indicator species that exhibit symptoms of immunosupression and endocrine disruption in response to water quality changes and contaminant exposure. In the Susquehanna Ri
Survey of potential viral pathogens in the ceca of pen-raised mallards
The threat posed by infectious diseases are a major concern for global public health and the role of migratory birds in pathogen transmission is increasingly under scrutiny. Enteric viral pathogen surveillance in migratory birds is a critical component of outbreak preparedness. The shedding of such pathogens through excrement into bodies of water located at migratory stop-over sites and breeding a
Database collating previous laboratory investigations into the pathogenesis of avian influenza viruses in wild avifauna of North America
A compilation of previously published results exploring the pathogenesis of avian influenza viruses in wild avian species in North America.
Brodifacoum isomer formulation study
Body weight and weight change during course of study, estimates of food and brodifacoum consumption, observations of test birds during feeding trial and at necropsy, hematocrit, and prothrombin time
Attribution of stream habitat assessment data to NHDPlus V2 and NHDPlus HR catchments within the Chesapeake Bay Watershed
This data release links habitat assessment sites to both the NHDPlus Version 2 and NHDPlus High Resolution Region 02 networks using the hydrolink methodology. Linked habitat sites are those compiled by the Interstate Commission on the Potomac River Basin (ICPRB) during creation of the Chesapeake Bay Basin-wide Index of Biotic Integrity (Chessie BIBI) for benthic macroinvertebrates (https://datahub
Data describing the use of retention ponds on commercial poultry facilities on Delmarva by wild waterfowl
These data support a paired USGS publication and document the use of retention ponds on commercial poultry farms by wild waterfowl.