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Upper respiratory tract disease (URTD) as a threat to desert tortoise populations: A reevaluation The relationships between Mycoplasma agassizii, a causative agent of upper respiratory disease (URTD), and desert tortoise (Gopherus agassizii), generally illustrate the complexities of disease dynamics in wild vertebrate populations. In this review, we summarize current understanding of URTD in Mojave desert tortoise populations, we illustrate how inadequate knowledge of tortoise immune systems may obfuscate assessment of disease, and we suggest approaches to future management of URTD in desert tortoise populations. We challenge the view that M. agassizii causes consistent levels of morbidity and/or mortality across the Mojave desert. Instead, URTD may be described more accurately as a context-dependent disease.... Categories: Publication; Types: Citation, Journal Citation; Tags: Biological Conservation, Conservation, Desert tortoise, Epidemiology, Natural antibody, All tags... Opportunistic, Wildlife disease, Fewer tags Conventional and quantitative PCR assays for detecting Tetracapsuloides bryosalmonae in fish tissue and environmental DNA water samples We developed and validated conventional and quantitative real-time PCR assays for the detection of DNA from the myxozoan parasite Tetracapsuloides bryosalmonae, the causative agent of proliferative kidney disease in fish. Assays were tested on fish tissue and on field-collected water samples to assess diagnostic and environmental DNA capabilities. The specificity, sensitivity, and broad applicability of the present assays surpass previous methods for detecting T. bryosalmonae DNA from fish tissue and water samples. Types: Citation; Tags: Aquatic Biology, California, Genetics, Idaho, Montana, All tags... Tetracapsuloides bryosalmonae, USGS Science Data Catalog (SDC), Wildlife Disease, Wyoming, environmental DNA, molecular biology, parasites, Fewer tags An evaluation of weather and disease as causes of decline in two populations of boreal toads Two populations of boreal toads (Bufo boreas) experienced drastic declines in abundance in the late 1990s. Evidence supported the hypothesis of disease (the chytrid fungus, Batrachochytrium dendrobatidis) as the cause of these declines, but other hypotheses had not been evaluated. We used an 11-year capture-recapture data set to evaluate weather and disease as causes of these declines. We developed sets of mathematical models that reflected hypothesized relationships between several weather variables and annual survival rates of adult males in these populations. In addition, models that reflected the possibility that the declines were caused by an introduced fungus were developed. All models were fit to the data... Categories: Publication; Types: Citation, Journal Citation; Tags: Batrachochytrium dendrobatidis, Bufo boreas, Ecological Applications, amphibian decline, boreal toad, All tags... capture–recapture, chytrid fungus, demographic parameters, marking effect, model selection, weather, wildlife disease, Fewer tags Predicted daily elk abortion events in southern GYE 2010, 2012, 2014 Using data from 288 adult and yearling female elk that were captured on 22 Wyoming winter supplemental elk feedgrounds and monitored with GPS collars, we fit Step Selection Functions (SSFs) during the spring abortion season and then implemented a master equation approach to translate SSFs into predictions of daily elk distribution for 5 plausible winter weather scenarios (from a heavy snow, to an extreme winter drought year). We then predicted abortion events by combining elk distributions with empirical estimates of daily abortion rates, spatially varying elk seroprevalence, and elk population counts. Here we provide the predicted abortion events on a daily basis at a 500m resolution for the 5 different weather... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Brucella abortus, Cervus canadensis, Grand Teton National Park, Jackson, Lincoln, All tags... National Elk Refuge, Sublette, Teton, Wyoming, biota, brucellosis, cattle risk, daily abortion risk, disease transmission, elk, mammals, predictions, space use, step selection function, ungulate, wildlife disease, Fewer tags Prevalence of West Nile virus in migratory birds during spring and fall migration, 2001-2003 To investigate the role of migratory birds in the dissemination of West Nile virus (WNV), we measured the prevalence of infectious WNV and specific WNV neutralizing antibodies in birds, principally Passeriformes, during spring and fall migrations in the Atlantic and Mississippi flyways from 2001-2003. Blood samples were obtained from 13,403 birds, representing 133 species. Specific WNV neutralizing antibody was detected in 254 resident and migratory birds, representing 39 species, and was most commonly detected in northern cardinals ( Cardinalis cardinalis ) (9.8%, N = 762) and gray catbirds ( Dumetella carolinensis ) (3.2%, N = 3188). West Nile virus viremias were detected in 19 birds, including 8 gray catbirds,... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Atlantic migratory bird flyway, Mississippi migratory bird flyway, USGS Science Data Catalog (SDC), United States, birds, All tags... disease vectors, flyways, migration (organisms), viruses, wildlife, wildlife disease, zoonotic disease, Fewer tags Potential contaminant sources and other landscape variables summarized for NHDPlus Version 2.1 catchments within the Chesapeake Bay Watershed (ver. 2.0, June 2021) This dataset consists of 262 variables which describe various known and suspected point and non-point sources of contaminants and endocrine disrupting compounds (EDCs) throughout the Chesapeake Bay Watershed. Contaminant data was summarized to the NHDPlus Version 2.1 catchment level (1:100K). Contaminant data summarized span a time range of 2001 to 2016 and include regulated facilities, pesticides, manure and biosolids application data, mercury deposition, animal feeding applications, septic systems, landfills, and land use and land cover. These data are presented in a comma separated file, which includes all variables summarized and the NHDPlus Version 2.1 FEATUREID field (also known as COMID). The FEATUREID field... Categories: Data, Data Release - Revised; Types: Citation; Tags: Aquatic Biology, Chesapeake Bay, Chesapeake Bay Basin, Delaware, Discharge Monitoring Report (DMR), All tags... District of Columbia, Environmental Health, Facility Registry Service (FRS), Geography, Land Use Change, Maryland, New York, Pennsylvania, Remote Sensing, Toxic Release Inventory (TRI), USGS Science Data Catalog (SDC), Virginia, Water Quality, Water Resources, West Virginia, Wildlife Biology, Wildlife Disease, biosolids application, concentrated animal feeding operations (CAFOs), contamination and pollution, geographic information systems, geography, health and disease, human impacts, industrial pollution, land use and land cover, landfills, manure nitrogen and phosphorus, mercury deposition, natural resources, nonpoint-source pollution, pesticide and herbicide contamination, pharmaceutical contamination, phytoestrogens, septic facilities, water quality, water resources, Fewer tags Elk GPS collar data in southern GYE 2007-2015 288 adult and yearling female elk were captured on 22 Wyoming winter supplemental elk feedgrounds and monitored with GPS collars during the brucellosis risk period (February – July) from 2007 to 2015. There were 4 to 64 individual elk per feedground and each elk was monitored for 1 to 2 years. Here we provide the unique identifier for each individual elk, the GPS location of the elk, the date/time stamp of the GPS location, and the feedground the elk was captured on in Wyoming. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cervus canadensis, GPS data, Grand Teton National Park, Jackson, Lincoln, All tags... National Elk Refuge, Sublette, Teton, Wyoming, biota, cattle risk, elk, location, mammals, movement, space use, ungulate, wildlife disease, Fewer tags Seroprevalence of West Nile virus in feral horses on Sheldon National Wildlife Refuge, Nevada, United States 2004-2006, 2008 and 2009 The authors screened 1,397 feral horses (Equus caballus) on Sheldon National Wildlife Refuge, Nevada, United States, for IgM and IgG against flavivirus during 2004-2006, 2008, and 2009. Positive serum samples were tested for neutralizing antibodies to West Nile virus (WNV) and St. Louis encephalitis virus (SLEV). One animal was positive for antibody against WNV in 2004, but all others tested in 2004-2006 were negative. In 2008 and 2009, the authors found evidence of increasing seropositive horses with age, whereas seroprevalence of WNV decreased from 19% in 2008 to 7.2% in 2009. No horses were positive for antibody against SLEV. Being unvaccinated, feral horses can be useful for WNV surveillance. Categories: Data; Types: Citation; Tags: Sheldon National Wildlife Refuge, Nevada, USA, USGS Science Data Catalog (SDC), West Nile virus, antibody, disease vectors, All tags... feral horse, serology, viruses, wildlife, wildlife disease, zoonotic disease, Fewer tags Effects of local shoreline and subestuary watershed condition on waterbird use influences of geography scale and season in the Chesapeake Bay This dataset is comprised of six files related to waterbird surveys and resulting Index of Waterbird Community Integrity (IWCI) scores in 21 subestuaries of the Chesapeake Bay from 2010-2014. Two .csv files (1 data file: Prosser et al 2017_IWCI Results MS_Bird Survey Raw Data.csv, 1 definitions file: Prosser et al 2017_IWCI Results MS_Bird Survey Raw Data_Definitions.csv) contain data related to raw waterbird survey data from two seasons (summer and fall). Two .csv files (1 data file: Prosser et al 2017_IWCI Results MS_Species List.csv, 1 definitions file: Prosser et al 2017_IWCI Results MS_Species List_Definitions.csv) contain data related to 60+ Chesapeake waterbird species observed in surveys and their species... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Anthropogenic Disturbance, Biological Indicators, Chesapeake Bay, Ecological Integrity, Estuaries, All tags... USGS Science Data Catalog (SDC), Waterbirds, Wildlife Disease, Fewer tags Predicted daily elk distribution in southern GYE 2010, 2012, 2014 Using data from 288 adult and yearling female elk that were captured on 22 Wyoming winter supplemental elk feedgrounds and monitored with GPS collars, we fit Step Selection Functions (SSFs) during the spring abortion season and then implemented a master equation approach to translate SSFs into predictions of daily elk distribution for 5 plausible winter weather scenarios (from a heavy snow, to an extreme winter drought year). Here we provide the predictions of elk space use on a daily basis at a 500m resolution for the 5 different weather scenarios: 1) low snowfall year (2010), 2) average snowfall year (2012), 3) high snowfall year (2014), 4) hypothetical early snowmelt climate change scenario where spring green... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cervus canadensis, Grand Teton National Park, Jackson, Lincoln, National Elk Refuge, All tags... Sublette, Teton, Wyoming, biota, cattle risk, disease transmission, elk, elk density, mammals, predictions, space use, step selection function, ungulate, wildlife disease, Fewer tags Elk abundance and seroprevalence data in southern GYE 1993-2015 We calculated mean adult and yearling female elk abundance for each Wyoming winter supplemental feedground subpopulation for data collected from 2009 to 2015. In addition, the average seroprevalence of brucellosis in elk attending feedgrounds was based on blood samples from adult and yearling female elk from 1993 to 2015. The sample size of disease tests and the number of years over which they were collected on each feedground are also listed. Serological profiles were categorized using the 2003 U.S. Department of Agriculture brucellosis eradication uniform methods and rules for cervids. These serological tests indicate whether or not an individual has been exposed, but not whether they are currently infected. Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Brucella abortus, Cervus canadensis, Grand Teton National Park, Jackson, Lincoln, All tags... National Elk Refuge, Sublette, Teton, Wyoming, biota, brucellosis, cattle risk, disease transmission, elk, mammals, ungulate, wildlife disease, Fewer tags