Arid
DOI10.1016/j.jaridenv.2021.104550
Variation in sage-grouse habitat quality metrics across a gradient of feral horse use
Hennig, Jacob D.; Beck, Jeffrey L.; Duchardt, Courtney J.; Scasta, J. Derek
Corresponding AuthorHennig, JD (corresponding author), Univ Wyoming, Dept Ecosyst Sci & Management, Laramie, WY 82071 USA.
JournalJOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
EISSN1095-922X
Year Published2021
Volume192
Abstract in EnglishFeral horse (Equus ferus caballus) grazing can alter arid shrubland habitat in the western United States to the detriment of sympatric wildlife species, including the greater sage-grouse (Centrocercus urophasianus). To date, studies of horse-influenced habitat alteration have only occurred in a few locations and have infrequently represented gradients of horse use. We investigated whether greater sage-grouse habitat quality metrics were negatively associated with feral horse use in southcentral Wyoming, USA. We also tested whether utilization distributions generated from feral horses tracked with global position system transmitters were correlated with dung pile density, our index of horse use. Dung pile density did not vary among utilization distribution levels, indicating utilization distributions were a poor predictor of cumulative horse use. Bare ground increased with dung pile density (beta = 0.06, 85% CI = 0.04-0.18), and grass height exhibited a threshold response and began to decline after 638 piles/ha. Other habitat metrics including percent shrub cover, native perennial grass cover, and visual obstruction were better explained by topographic and temporal variation. Our results suggest that herd size reduction may limit soil erosion potential and improve desired herbaceous structure, though additional management actions regarding feral horse use are needed to sustain high-quality greater sage-grouse habitat.
Keyword in EnglishCentrocercus urophasianus Habitat alteration Introduced species Herd management Rangeland
SubtypeArticle
Language英语
Indexed BySCI-E
WOS IDWOS:000663808500002
WOS KeywordWILD HORSE ; NESTING HABITAT ; SOIL-EROSION ; VEGETATION ; MANAGEMENT ; SELECTION ; IMPACTS ; CATTLE ; CHEATGRASS ; DESERT
WOS SubjectEcology ; Environmental Sciences
WOS Research AreaEnvironmental Sciences & Ecology
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/350723
Affiliation[Hennig, Jacob D.; Beck, Jeffrey L.; Duchardt, Courtney J.; Scasta, J. Derek] Univ Wyoming, Dept Ecosyst Sci & Management, Laramie, WY 82071 USA; [Duchardt, Courtney J.] Oklahoma State Univ, Dept Nat Resource Ecol & Management, Stillwater, OK 74078 USA
Recommended Citation
GB/T 7714
Hennig, Jacob D.,Beck, Jeffrey L.,Duchardt, Courtney J.,et al. Variation in sage-grouse habitat quality metrics across a gradient of feral horse use[J],2021,192.
APA Hennig, Jacob D.,Beck, Jeffrey L.,Duchardt, Courtney J.,&Scasta, J. Derek.(2021).Variation in sage-grouse habitat quality metrics across a gradient of feral horse use.JOURNAL OF ARID ENVIRONMENTS,192.
MLA Hennig, Jacob D.,et al."Variation in sage-grouse habitat quality metrics across a gradient of feral horse use".JOURNAL OF ARID ENVIRONMENTS 192(2021).
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