Data

Counts and measurements were made on specimens of the Halloween darter (Percina crypta) and of the Blackbanded darter (Percina nigrofasciata, sensu lato). Data used in the original description of Percina crypta are included, in addition to counts (and in some cases measurements) for 66 additional Percina nigrofasciata from the Savannah, Altamaha, and upper Chattahoohee river systems, and 1 additio

These data describe avian influenza sampling efforts for eastern wild turkeys (Meleagris gallopavo silvestris) across the Maryland portion of the Delmarva Peninsula, USA in the winter of 2023-2024

This data release supports a paired USGS publication that explores how road watering on an active construction site impacts dust accumulation and monarch distribution.

These data describe the demographic composition of Common Terns at a newly identified staging area on the Patuxent River Naval Air Station and evaluates the importance of this location to the local breeding population. Specifically, we sought to identify the number of individuals using this potential staging area, the origins of those individuals, and the relative importance of this location to lo

This metadata record describes a series of data sets of climate and land-use/land-cover features (provided in parquet file format) linked to NHDPlus Version 2.1’s (NHDPlusV2) stream segments, their associated catchments and their upstream watersheds within selected regions in the conterminous United States. All data can be linked to NHDPlusV2 using the COMID field in these tables and the ComID in

This study examined effects of the brominated flame retardant hexabromocyclododecane (HBCD) on the avian endocrine system. Japanese quail (Coturnix japonica) were exposed to multiple doses of HBCD over multiple generations through feed and by maternal deposition into the egg. Liver transcriptomes were examined to identify genes and pathways directly affected by HBCD to better understand the mechan

Natural resource managers worldwide grapple with protecting aquatic environments and species in the face of intensifying land use and climatic changes. The hierarchical landscape theory suggests that a species distribution is impacted by multiple series of environmental factors affecting the species at multiple spatial resolutions. For a species to inhabit an area, it must pass through these envir

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 for this stream network and ultimately individual fitness (natural selection and evolution) in the

Mark-recapture records of salamanders in the genus Desmognathus within stream habitat at Shenandoah National Park, Virginia from 2007-2013

The Grand Calumet River flows through northwestern Indiana and was designated an EPA Area of Concern (AOC) in 1987. There are multiple legacy pollutants in the river including but not limited to heavy metals and PCBs. To investigate potential causes and patterns of eutrophication in the river, water samples were collected for 16S rRNA microbial and eukaryotic 18S rRNA amplicon sequencing during Ap

These data were collected using distance sampling methods (point counts) and visual assessment of land cover and habitat at randomly selected locations in the Western Gulf Coastal Plain ecoregion of Texas and Louisiana in April-May 2017-2019.

Plasma from adult smallmouth bass was analyzed for 13 per- and polyfluoroalkyl compounds at 11 sites for a spatial comparison. At four sites a temporal comparison was made over a three year period (2017-2019). At two sites tissue comparisons were made using plasma, whole blood, liver, gonad and muscle. Compounds detected at least once are included in the dataset. For all fish collection site, date