干旱区生态环境知识资源中心(Arid): Variation in sage-grouse habitat quality metrics across a gradient of feral horse use

Arid

DOI	10.1016/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
通讯作者	Hennig, JD (corresponding author), Univ Wyoming, Dept Ecosyst Sci & Management, Laramie, WY 82071 USA.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2021
卷号	192
英文摘要	Feral 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.
英文关键词	Centrocercus urophasianus Habitat alteration Introduced species Herd management Rangeland
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000663808500002
WOS关键词	WILD HORSE ; NESTING HABITAT ; SOIL-EROSION ; VEGETATION ; MANAGEMENT ; SELECTION ; IMPACTS ; CATTLE ; CHEATGRASS ; DESERT
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350723
作者单位	[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
推荐引用方式 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).