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Data describing the effect of transmitter attachment on the return rate of adult and juvenile Common Terns to a breeding colony Data describing the effect of transmitter attachment on the return rate of adult and juvenile Common Terns to a breeding colony
Previous efforts conducted during the breeding season of 2021 affixed two types of light-weight transmitters to adult and pre-fledgling juvenile Common Terns with leg-loop harnesses made of elastic cord. Subsequent observations of marked birds detected minimal differences in the behavior and nesting success of marked adults, nor were any notable impacts on the growth rate or behavior of...
The North American Breeding Bird Survey, Analysis Results 1966 - 2025 The North American Breeding Bird Survey, Analysis Results 1966 - 2025
This data product consists of a database of population change and abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data. Data are presented for 545 species (or groups of species) of birds in five spreadsheets containing trend estimates for three time periods and annual indices for two time periods. Estimates are derived for each...
Data describing the pH of soil prior to and following establishment of a mixed species wading bird rookery Data describing the pH of soil prior to and following establishment of a mixed species wading bird rookery
During the 2020 breeding season, Double-crested Cormorants invaded the historic breeding colony of a mixed species wading bird rookery in the Chesapeake Bay, resulting in the destruction of suitable nesting habitat and subsequent relocation of the rookery the following breeding season. This new rookery was established at a site where soil pH was being measured for an unrelated study...
Final report on range-wide relative abundance of Appalachian Grizzled Skipper Final report on range-wide relative abundance of Appalachian Grizzled Skipper
The dataset contains information on where the Appalachia Grizzled Skippers (AGS) were found, by state and date (2021-2024). Dataset also provides weather information at time of survey, and duration of survey.
Range-Wide Appalachian Grizzled Skipper Population Status Range-Wide Appalachian Grizzled Skipper Population Status
U.S. Fish and Wildlife Service (USFWS) has designated Pyrgus wyandot (W. H. Edwards) (Appalachian Grizzled Skipper, AGS) as a Species of Concern based on its declining populations and the paucity of information on its current status. Our objective was to conduct range-wide surveys to locate extant AGS colonies and to quantify the number of AGS observed at each location. From 2021 – 2024...
Expert judgment data for Bayesian Decision Networks to support habitat management for Eastern Black Rails along the Atlantic coast Expert judgment data for Bayesian Decision Networks to support habitat management for Eastern Black Rails along the Atlantic coast
This data set was collected as part of structured decision-making workshops designed to build Bayesian Decision Networks of habitat management actions in wetlands of the Atlantic Coast Joint Venture region. The models were created as part of an adaptive management framework to reduce uncertainty about management actions. We used formal elicitation process for expert judgment where...
2026 Release - North American Breeding Bird Survey Dataset (1966 - 2025) 2026 Release - North American Breeding Bird Survey Dataset (1966 - 2025)
The 1966-2025 North American Breeding Bird Survey (BBS) dataset contains avian point count data for more than 700 North American bird taxa (species, races, and unidentified species groupings). These data are collected annually during the breeding season, primarily in June, along thousands of randomly established roadside survey routes in the United States and Canada. Routes are roughly...
Northern mockingbird ileal microbiota activity and expression of antimicrobial resistance genes, virulence factors, and metabolic pathways in Texas cotton producing and uncultivated areas Northern mockingbird ileal microbiota activity and expression of antimicrobial resistance genes, virulence factors, and metabolic pathways in Texas cotton producing and uncultivated areas
The increased use of agrochemicals to enhance crop production has had detrimental environmental effects. Indeed, pesticides and their deleterious environmental effects have been implicated in the sharp decline in North American farmland-breeding birds. Here, using a combination of deep shotgun metatranscriptomics and pesticide exposure data, we sought to assess whether exposure to cotton
Outputs supporting the exploration of zero-inflated integrated species distribution models Outputs supporting the exploration of zero-inflated integrated species distribution models
These data are model outputs demonstrating species abundance estimates derived from a integrated species distribution model
Biological and Chemical Findings Associated with Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus from Selected Northeast United States and Quebec Waterbodies Biological and Chemical Findings Associated with Melanoma and Other Melanistic Lesions in Brown Bullhead Ameiurus nebulosus from Selected Northeast United States and Quebec Waterbodies
Brown bullhead were collected from seven sites in Lake Memphremagog in Vermont and Quebec, Hermon Pond in Maine and Village Pond in New Hampshire. Both visibly normal and lesioned adult bullhead were collected at each site. Biological data collected included length, weight, sex, age, condition factor and presence or absence of non-raised and raised black lesions. Plasma from five sites...
Texas Black Bass Observations and Blotchy Bass Syndrome Measurements Collected by the Texas Parks and Wildlife Department, 2011–2023 Texas Black Bass Observations and Blotchy Bass Syndrome Measurements Collected by the Texas Parks and Wildlife Department, 2011–2023
This data release contains quality controlled records of citizen submitted observations of black bass (Micropterus spp.) provided to the Texas Parks and Wildlife Department (TPWD) through public angler reporting programs. TPWD biologists reviewed, standardized, and anonymized these submissions before sharing the dataset with the U.S. Geological Survey for regional analysis of Blotchy...
Blotchy Bass Syndrome (BBS) Citizen Science Surveillance Data, North America, 2022–2024 Blotchy Bass Syndrome (BBS) Citizen Science Surveillance Data, North America, 2022–2024
This data release contains quality-controlled records of angler-submitted observations of black bass (Micropterus spp.) collected through a two-year citizen science initiative using the MyCatch mobile application. The dataset includes verified catch records for largemouth bass and smallmouth bass, with each entry providing information on catch date, time, location (latitude/longitude)...