Supervisory Research Wildlife Biologist
Fort Collins Science Center
Email:
schoeneckerk@usgs.gov
Office Phone:
970-226-9329
Fax:
970-226-9230
ORCID:
0000-0001-9906-911X
Location
NRRC Bldg C
2150 Centre Avenue
Building C
Fort Collins
, CO
80526-8118
US
Supervisor:
Sharon K Taylor
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We studied the effect of castrating a proportion of the adult males in a feral horse herd to examine any effect on behavior and social associations, particularly in terms of association with mares (i.e., maintenance of a harem group). 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 at Conger HMA.
Categories: Data;
Tags: Conger Mountain,
Ecology,
Feral horse,
Frisco Peak,
Gelding, All tags...
Stallion,
USGS Science Data Catalog (SDC),
USGS-EMA-LOW-SB SMC: Wild horses,
Utah,
Wild horse,
Wildlife Biology,
biota, Fewer tags
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These data represent 2 years of plant clipping data in areas with elk plus bison and areas of elk only in the San Luis Valley of Colorado, USA from 2006-2008. Clipping plots were measured (clipped) in meadow sites, herbaceous riparian sites, and willow communities. We clipped 1/4 m2 (meter-squared) rings inside and outside of 1-m2 grazing cages, as well as within large ungulate exclosures that were 0.04 ha (hectares) in size.
Categories: Data;
Tags: Colorado,
Ecology,
Great Sand Dunes National Park,
Land Use Change,
Rio Grande, All tags...
San Luis Valley,
USGS Science Data Catalog (SDC),
Wildlife Biology,
biota,
grasslands, Fewer tags
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Data represent locations of mares and stallions in Utah. Data were collected using GPS radio collars on mares or tail transmitters braided into the tails of stallions, at a 2-hour fix rate for a period spanning 2016 to 2020. Horses were located at Conger Herd Management Area (HMA) or Frisco HMA in the Great Basin ecosystem of Utah, USA.
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These data are detections of bison in Grand Canyon National Park made during helicopter surveys between 2019 and 2021, and an aerial infrared imagery survey done in February 2020.
Categories: Data;
Tags: Arizona,
Ecology,
North Rim,
Powell Plateau,
USGS Science Data Catalog (SDC), All tags...
USGS-EMA-LOW-PL Grand Canyon,
Wildlife Biology,
abundance estimation,
aerial survey,
biota,
bison,
detection probability,
double-observer,
helicopter,
sightability,
thermal infrared, Fewer tags
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Feral burros (Equus asinus) and horses (E. ferus caballus) inhabiting public land in the western United States are intended to be managed at population levels established to promote a thriving, natural ecological balance. Like many large ungulate populations, management agencies employ aerial surveys to obtain estimates of horse and burro population sizes. Double-observer sightability (MDS) models perform well for estimating feral horse abundances, yet the effectiveness of these models for use in burro populations is less understood and may be different due to the smaller size, stoic behavior, and cryptic pelage of burros. These models help minimize detection bias, yet bias can be further reduced with models that...
Categories: Data;
Tags: Arizona,
California,
Ecology,
Fort Irwin National Training Center,
Lake Pleasant Herd Management Area, All tags...
Sinbad Herd Management Area,
USGS Science Data Catalog (SDC),
USGS-EMA-LOW-MR Rangeland,
USGS-EMA-LOW-SB SMC: Wild horses,
Utah,
Wildlife Biology,
abundance estimation,
aerial survey,
biota,
burro,
detection probability,
double-observer,
helicopter,
residual heterogeneity,
sightability, Fewer tags
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