Filters: Tags: mortality (X) > partyWithName: U.S. Geological Survey (X)
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Data collected from a comprehensive set of hydrodynamic experiments conducted with live grass carp eggs and larvae, to evaluate drifting and swimming patterns with 3 different in-stream obstructions: (1) a gravel bump, (2) a single cylinder, and (3) submerged vegetation. The hydrodynamic behavior of eggs and larvae with each obstruction was continuously monitored for about 85 consecutive hours. Transient spatial distributions of the locations of eggs and larvae across the water column were generated for each flow scenario.
Bird Behavior and Mortality in Relation to Power Lines in Prairie Habitats, North Dakota, 1981to1982
A biologist and field crew from Northern Prairie Wildlife Research Center observed bird flights at 7 study sites, twice weekly during two spring and two fall migration periods between April 3, 1981 and May 20, 1982. Study sites were located in south-central North Dakota in Barnes, Kidder, and Stutsman counties. The database includes flight observation's of bird species in the vicinity of power lines and transmission towers, number of birds in each flock, their reactions to power lines and transmission towers, weather conditions, and number of collisions.
Avian morbidity and mortality events reported in WHISPers that began in calendar year 2023. Events reported in WHISPers represent only those events that are reported to the USGS National Wildlife Health Center or the Southeastern Cooperative Wildlife Disease Studies at the University of Georgia, or that State, Federal, and Tribal partners voluntarily report into WHISPers, not legal, and marked as “Visible to the Public”.
Categories: Data;
Tags: USGS Science Data Catalog (SDC),
United States,
avian,
cause of death,
morbidity,
These data were compiled to help understand how climate change may impact dryland pinyon-juniper ecosystems in coming decades, and how resource management might be able to minimize those impacts. Objective(s) of our study were to model the demographic rates of PJ woodlands to estimate the areas that may decline in the future vs. those that will be stable. We quantified populations growth rates across broad geographic areas, and identified the relative roles of recruitment and mortality in driving potential future changes in population viability in 5 tree species that are major components of these dry forests. We used this demographic model to project pinyon-juniper population stability under future climate conditions,...
We studied factors affecting separation of feral horse foals from their mothers and foal mortality, including variables such as group changes by the mother and behavior of the foal. We include data on feral horse foals that died or were separated, and their siblings. We conducted this study between 2017 and 2020 at two Herd Management Areas (HMAs) in western Utah, USA: Conger and Frisco. We conducted demographic observations year round at both HMAs to record group composition and foaling rate. We additionally recorded behavioral observations for a subset of foals at Conger HMA annually between March and September. This dataset includes 2 .csv files: Data_foals_dead_separated_siblings.csv - These data contain 52...
Categories: Data;
Tags: Conger Mountain,
Ecology,
Equus,
Frisco Peak,
USGS Science Data Catalog (SDC),
Detailed data collected from the field and generated during diagnostic evaluation of whooping crane carcasses from the Eastern Migratory Population.
These data consist of environmental covariates and estimated plot-level mortality of ponderosa pine trees. Environmental covariates include growing season temperature and soil moisture, and values are summarized into long-term mean conditions, and anomalies observed between forest inventory sampling events for each plot. Data also include plot locations (with uncertainty introduced by the US Forest Service to maintain private property rights), plot basal area, and several variables related to estimated mortality rate of ponderosa pine trees under various assumptions about basal area conditions.
Necropsy data collected from naturally-occurring white-tailed deer mortalities in southwestern Wisconsin from 2017-2021. Hunter-harvest mortalities are not included.
Categories: Data;
Tags: USGS Science Data Catalog (SDC),
Wildlife Disease,
Wisconsin,
biota,
chronic wasting disease,
We investigated the cultureable bacterial communities in the native freshwater mussel faunal in the Clinch River, VA/TN during mussel mortality events in 2018, 2019 and 2020 and examine the spatial and temporal distribution of bacterial genera among Pheasantshells and six other unionid species.
Categories: Data;
Tags: Aquatic Biology,
Clinch River,
Tennessee,
USGS Science Data Catalog (SDC),
Virginia,
Morbillivirus epidemics in marine mammals first gained prominence in 1988 when an outbreak of phocine distemper virus (PDV) occurred in European harbor seals (Phoca vitulina vitulina). Prior to 2001, all serosurveys for morbilliviruses in sea otters (Enhydra lutris) in California, Washington and Alaska documented a 0% seroprevalence. The first published serodetections of morbillivirus in sea otters occurred in 2001–2002 in live-captured Washington sea otters with a documented 80% seroprevalence. We conducted a retrospective study of sea otter cases from 1989–2010 compiled at the U.S. Geological Survey’s National Wildlife Health Center to identify cases of morbilliviral disease in Washington sea otters, and to characterize...
Categories: Data;
Tags: USGS Science Data Catalog (SDC),
Washington,
Washington sea otter,
Wildlife Disease,
biota,
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