Filters: Tags: occupancy (X) > Types: Citation (X)
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Concern over the decline of grassland birds has spurred efforts to increase understanding of grassland bird-habitat relationships. Previous studies have suggested that black-tailed prairie dogs (Cynomys ludovicianus) provide important habitat for shortgrass prairie avifauna, such as mountain plover (Charadrius montanus) and western burrowing owl (Athene cunicularia hypugaea), although such studies are lacking in Colorado (USA). We used methods to estimate occupancy (psi) of mountain plover and burrowing owl on prairie dog colonies and other shortgrass prairie habitats in eastern Colorado. Mountain plover occupancy was higher on prairie dog colonies (psi = 0.50, 95% CI = 0.36-0.64) than on grassland (psi = 0.07,...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Athene cunicularia,
Charadrius montanus,
Colorado,
Cynomys ludovicianus,
Journal of Wildlife Management,
The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 1980-1989. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation. The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone ecosystem during 1980 to1989.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Beaverhead-Deerlodge,
Bridger-Teton,
Caribou-Targhee,
Gallatin-Custer,
Grand Teton,
These data indicate whether a premetamorphic or any life stage of each amphibian species (sierran treefrog Pseudacris sierra, California red-legged frog Rana draytonii, and rough-skinned newt Taricha granulosa) was detected in a survey. These data, combined with the survey data, are necessary for modeling occupancy while accounting for imperfect detection. Surveys for which no detections occurred do not appear in this file, but are in the survey data file (Survey_Data_for_Occupancy_of_Amphibians_in_Northern_California_Coastal_Dune_Drainages_2014_2016).
Categories: Data;
Types: Citation;
Tags: California,
Great Beach,
Point Reyes National Seashore,
amphibian,
coastal dune,
These data describe the maximum water depth in each studied coastal dune drainage in each study year. Water depth is used as a proxy for hydroperiod, and is a good indicator of the relative persistence of surface water among sites that can be collected in a single visit.
Categories: Data;
Types: Citation;
Tags: California,
Great Beach,
Point Reyes National Seashore,
amphibian,
coastal dune,
These data describe the date, time (night vs. day), observer, and air temperature of each amphibian occupancy survey conducted in coastal dune drainages from 2014 through 2016. Survey-specific covariates explain patterns in detection probabilities among surveys, thereby reducing bias in occupancy models and improving future surveys.
Categories: Data;
Types: Citation;
Tags: California,
Great Beach,
Point Reyes National Seashore,
amphibian,
coastal dune,
The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 2000-2014. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation. The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone ecosystem during 2000 to 2014.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Beaverhead-Deerlodge,
Bridger-Teton,
Caribou-Targhee,
Gallatin-Custer,
Grand Teton,
The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 2002-2016. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation. The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone ecosystem during 2002 to 2016.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Beaverhead-Deerlodge,
Bridger-Teton,
Caribou-Targhee,
Custer-Gallatin,
Grand Teton,
The Latitude is the average latitude of all 0.5 degree cells covering the eastern United States and southeastern Canada between longitude 60W and 102 W and latitude 24N and 49N, weighted by the unconditional probability of occupancy of Louisiana Waterthrush. Values given for the years 1997 to 2013. The Latitude_SE is the estimated standard error for the Latitude. Description of the data and analysis used to generate these values is given in: Clement, M.J., J.E. Hines, J.D. Nichols, K.L. Pardieck, D.J. Ziolkowski Jr. 2016. Estimating indices of range shifts in birds using dynamic models when detection is imperfect. Global Change Biology 22:3273-3285. doi: 10.1111/gcb.13283.
Categories: Data;
Types: Citation;
Tags: Birds,
Breeding Bird Survey,
Louisiana Waterthrush,
Northeast CASC,
Wildlife and Plants,
The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 1990-2000. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation. The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone ecosystem during 1990 to 2000.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Beaverhead-Deerlodge,
Bridger-Teton,
Caribou-Targhee,
Gallatin-Custer,
Grand Teton,
The grizzly bear distribution boundary represents the estimated geographic extent of occupied range of the Yellowstone grizzly bear population for the period 1973-1979. The distribution boundary was delineated to provide reliable estimations of grizzly bear occupancy throughout time and for use as a monitoring tool in grizzly bear management and conservation. The boundary was delineated by the Interagency Grizzly Bear Study Team (IGBST) using an interpolation method based on grizzly bear telemetry and GPS locations as well as verified observations and signs of grizzly bears inside the Greater Yellowstone ecosystem during 1973 to1979.
Categories: Data;
Types: Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Beaverhead-Deerlodge,
Bridger-Teton,
Caribou-Targhee,
Gallatin-Custer,
Grand Teton,
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