Supv. Research Wildlife Biologist
Western Ecological Research Center
Email:
bhalstead@usgs.gov
Office Phone:
530-669-5076
Fax:
707-678-5039
ORCID:
0000-0002-5535-6528
Location
800 Business Park Dr
800 Business Park Drive
Dixon
, CA
95620
US
Supervisor:
Tom S Kimball
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We conducted a radio telemetry study of adult western spadefoots (Spea hammondii) at 2 sites in southern California to characterize their survival, behavior, and movements from breeding through aestivation to inform conservation and management for the species. These data support the following publication: Halstead, B.J., Baumberger, K.L., Backlin, A.R., Kleeman, P.M., Wong, M.N., Gallegos, E.A., Rose, J.P., and Fisher, R.N., 2021. Conservation implications of spatiotemporal variation in the terrestrial ecology of an ephemeral pool-breeding amphibian. The Journal of Wildlife Management.
Categories: Data;
Tags: California,
Orange County,
Southern California,
Spea hammondii,
USGS Science Data Catalog (SDC), All tags...
Wildlife Biology,
activity,
amphibians,
anuran,
biota,
ecology,
environment,
habitat selection,
home range,
movement,
survival,
western spadefoot, Fewer tags
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These data include egg mass counts and adult capture-mark-recapture histories for Foothill Yellow-legged frogs (Rana boylii) at two streams in northern California. Data were collected from the South Fork Eel River and its tributary, Fox Creek, from 1993-2019. Data from Hurdygurdy Creek were collected from 2002-2008.
Tags: Del Norte County,
Fox Creek,
Hurdygurdy Creek,
Mendocino County,
South Fork Eel River, All tags...
amphibians,
biota,
conservation,
flow regime,
population dynamics, Fewer tags
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These data represent trapping effort and captures of deer mice at Point Reyes National Seashore, Marin County, California. Deer mice were captured and marked with ear tags to allow identification of individuals. The location of captures can be used in a spatially explicit capture recapture model to estimate density of mice and how mouse density varies by site and habitat type.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service,
Shapefile;
Tags: California,
Ecology,
Marin County,
Point Reyes National Seashore,
USGS Science Data Catalog (SDC), All tags...
Wildlife Biology,
biota,
ecology,
mammals,
modeling,
population and community ecology,
restoration, Fewer tags
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The dataset consists of two csv files one for adult snakes and one for captive-reared juvenile snakes. The data contains start times (when snakes entered the study) and end times (when snakes died or were censored from the study) for survival analysis. The data also contains general information about the individual snakes (id, snout-vent length, treatment group, whether or not they were translocated), sex (juveniles only since adults were all female), surface activity (and data needed to calculate surface activity), and average distance moved between telemetry resighting. The above information was used as covariates in the survival models. These data support the following publication: Nguyen, A.M., Todd, B.D....
Categories: Data;
Tags: California,
Ecology,
USGS Science Data Catalog (SDC),
Wildlife Biology,
biota, All tags...
ecology,
habitats,
herpetology,
reptiles,
wildlife, Fewer tags
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This U.S. Geological Survey data release includes tabular data collected to characterize the habitat and movement of Dixie Valley toads. Data were collected in Dixie Valley, Nevada, in autumn 2018 and spring 2019. These data support the following publication: Halstead, B.J., Kleeman, P.M., Rose, J.P. and Fouts, K.J., 2021. Water Temperature and Availability Shape the Spatial Ecology of a Hot Springs Endemic Toad (Anaxyrus williamsi). Herpetologica, 77(1), pp.24-36. https://doi.org/10.1655/HERPETOLOGICA-D-20-00047.
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