干旱区生态环境知识资源中心(Arid): Effects of elk and bison herbivory on narrowleaf cottonwood

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	Effects of elk and bison herbivory on narrowleaf cottonwood
	Zeigenfuss, Linda C.; Schoenecker, Kathryn A.
通讯作者	Schoenecker, KA (corresponding author), US Geol Survey, Ft Collins Sci Ctr, 2150 Ctr Ave,Bldg C, Ft Collins, CO 80526 USA. ; Schoenecker, KA (corresponding author), Colorado State Univ, Ecosyst Sci & Sustainabil, Ft Collins, CO 80523 USA.
来源期刊	WESTERN NORTH AMERICAN NATURALIST
ISSN	1527-0904
EISSN	1944-8341
出版年	2021
卷号	81 期号:1 页码:97-112
英文摘要	Ungulate browsing influences the structure and composition of woody plant communities, including species composition and biomass production as well as age distribution, recruitment, and mortality. We evaluated effects of elk and bison herbivory on narrowleaf cottonwood (Populus angustifolia) communities in a semiarid ecosystem in southern Colorado. Cottonwoods in this ecosystem have been aged at >= 300 years old and are among the oldest cottonwood trees in North America. We compared browsing intensity and structural and productivity responses of cottonwood to ungulate herbivory. We compared responses in sites with elk and bison, sites with elk but no bison, and sites where both ungulates were excluded. We found that the majority of browsing on cottonwood occurred during summer in this high desert ecosystem. Areas with both elk and bison had higher browse utilization than areas with only elk, but diet data indicated that elk consumed a much greater proportion of cottonwood than bison. Overall, browse utilization observed in this study was low to moderate compared to other studies, and our results may not be representative of sites experiencing intense year-round herbivory. Removal of all ungulate herbivory led to taller and denser cottonwood suckers; however, other environmental factors, in addition to herbivory, still strongly limit cottonwood growth and recruitment in this ecosystem.
类型	Review
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000659319200009
WOS关键词	RIPARIAN VEGETATION ; POPULUS-ANGUSTIFOLIA ; CERVUS-ELAPHUS ; HABITAT USE ; CATTLE ; ECOLOGY ; WILLOWS ; WATER ; SELECTION ; GROWTH
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	United States Geological Survey ; Colorado State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352000
作者单位	[Zeigenfuss, Linda C.; Schoenecker, Kathryn A.] US Geol Survey, Ft Collins Sci Ctr, 2150 Ctr Ave,Bldg C, Ft Collins, CO 80526 USA; [Schoenecker, Kathryn A.] Colorado State Univ, Ecosyst Sci & Sustainabil, Ft Collins, CO 80523 USA
推荐引用方式 GB/T 7714	Zeigenfuss, Linda C.,Schoenecker, Kathryn A.. Effects of elk and bison herbivory on narrowleaf cottonwood[J]. United States Geological Survey, Colorado State University,2021,81(1):97-112.
APA	Zeigenfuss, Linda C.,&Schoenecker, Kathryn A..(2021).Effects of elk and bison herbivory on narrowleaf cottonwood.WESTERN NORTH AMERICAN NATURALIST,81(1),97-112.
MLA	Zeigenfuss, Linda C.,et al."Effects of elk and bison herbivory on narrowleaf cottonwood".WESTERN NORTH AMERICAN NATURALIST 81.1(2021):97-112.