Habitat Use by Feral Horses in the Northern Sagebrush Steppe. Ganskopp, D. & Vavra, M. Journal of Range Management, 39:207-211, 1986.
abstract   bibtex   
Distribution patterns of feral horses ( Equus caballus ) relative\nto plant communities, herbaceous production, and perennial water\nsources were studied from April 1979 to March 1981 in Oregon's Owyhee\nBreaks. Repcatcd observations of radio-collared and easily identified\nhorses allowed estimation of home range sizes and documentation of\nthe plant communities utilized. A map of plant communities was constructed,\nand composition and herbaceous production of key communities sampled.\nTime-lapse cameras monitored the daylight watering patterns of horses.\nOne hundred thirty-three horses were initially censused and identified\non the study area with the total population subsequently increasing\nat an annual rate of 13%. Home ranges averaged 12 km* with the minimum\nconvex polygon procedure and 27 km2 with the 90% confidence ellipse\nmethod. No seasonal shifts in home ranges occurred, and no correlations\nwere detected between home range size and numhcr of horses per band,\ndensities of perennial water sources, or levels of forage production\nwithin home ranges. Six distinct herds were identified on the area.\nOnly one band of horses moved from one herd to another during the\n2-year study. Animals in each herd made greatest use of the most\nprevalent plant conununity, with no community being universally preferred\nto over another. Watering activities were most intense during the\nfirst and last periods of daylight. Horses rapidly vacated the watering\nareas after drinking. A seasonal trend was observed in which horses\nremained slightly closer to uerennial water sources durina warm.\ndrv summer ccs were available. Seasonal diferences were not statistically\nsig nificant, however.
@article{
 title = {Habitat Use by Feral Horses in the Northern Sagebrush Steppe},
 type = {article},
 year = {1986},
 keywords = {activity animals communities Community composition},
 pages = {207-211},
 volume = {39},
 id = {92e9abd1-fb06-3691-a53b-20dfbaac9dcd},
 created = {2014-11-12T15:37:08.000Z},
 file_attached = {false},
 profile_id = {e77fd8b5-61ed-3cb6-9a8d-ead8c87a9123},
 group_id = {886a50df-fbf3-30e6-9d6b-6771e376eacf},
 last_modified = {2015-08-21T02:37:29.000Z},
 tags = {Equus caballus},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 abstract = {Distribution patterns of feral horses ( Equus caballus ) relative\nto plant communities, herbaceous production, and perennial water\nsources were studied from April 1979 to March 1981 in Oregon's Owyhee\nBreaks. Repcatcd observations of radio-collared and easily identified\nhorses allowed estimation of home range sizes and documentation of\nthe plant communities utilized. A map of plant communities was constructed,\nand composition and herbaceous production of key communities sampled.\nTime-lapse cameras monitored the daylight watering patterns of horses.\nOne hundred thirty-three horses were initially censused and identified\non the study area with the total population subsequently increasing\nat an annual rate of 13%. Home ranges averaged 12 km* with the minimum\nconvex polygon procedure and 27 km2 with the 90% confidence ellipse\nmethod. No seasonal shifts in home ranges occurred, and no correlations\nwere detected between home range size and numhcr of horses per band,\ndensities of perennial water sources, or levels of forage production\nwithin home ranges. Six distinct herds were identified on the area.\nOnly one band of horses moved from one herd to another during the\n2-year study. Animals in each herd made greatest use of the most\nprevalent plant conununity, with no community being universally preferred\nto over another. Watering activities were most intense during the\nfirst and last periods of daylight. Horses rapidly vacated the watering\nareas after drinking. A seasonal trend was observed in which horses\nremained slightly closer to uerennial water sources durina warm.\ndrv summer ccs were available. Seasonal diferences were not statistically\nsig nificant, however.},
 bibtype = {article},
 author = {Ganskopp, D. and Vavra, M},
 journal = {Journal of Range Management}
}

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