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DOI	10.1006/jema.1999.0287
	Using resistance and resilience measurements for ’fitness’ tests in ecosystem health
	Whitford, WG; Rapport, DJ; deSoyza, AG
通讯作者	Whitford, WG
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	1999
卷号	57 期号:1 页码:21-29
英文摘要	The resistance and resilience of perennial grasses and a small shrub to a natural disturbance (drought) were measured on stress gradients that were produced by domestic livestock in desert grassland ecosystems in the northern Chihuahuan Desert of New Mexico, USA. Both survivorship of grasses and a sub-shrub (Gutierrezia sarothrae) during a drought (a measure of resistance) and re-establishment of plant cover following a drought (a measure of resilience) were reduced in the intensely stressed ecosystems in comparison to the lightly stressed ecosystems. The compromise of the resistance and resilience characteristics of an ecosystem can be used as a ’fitness’ test for the health of ecosystems. Fitness tests can provide early warning of ecosystem degeneration and allow intervention to reduce or eliminate anthropogenic stress on the ecosystems. (C) 1999 Academic Press.
英文关键词	disturbance ecosystem health grazing fitness test resilience resistance survivorship stress
类型	Article
语种	英语
国家	USA ; Canada
收录类别	SCI-E
WOS记录号	WOS:000082742700003
WOS关键词	VEGETATION ; DESERT ; STRESS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	New Mexico State University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/137661
作者单位	(1)New Mexico State Univ, USDA ARS Jornada, US EPA, Off Res & Dev, Las Cruces, NM 88003 USA;(2)Univ Guelph, Fac Environm Sci, Ecosyst Hlth Program, Guelph, ON N1G 2W1, Canada;(3)Univ Western Ontario, Fac Med, Dept Pharmacol & Toxicol, London, ON, Canada
推荐引用方式 GB/T 7714	Whitford, WG,Rapport, DJ,deSoyza, AG. Using resistance and resilience measurements for ’fitness’ tests in ecosystem health[J]. New Mexico State University,1999,57(1):21-29.
APA	Whitford, WG,Rapport, DJ,&deSoyza, AG.(1999).Using resistance and resilience measurements for ’fitness’ tests in ecosystem health.JOURNAL OF ENVIRONMENTAL MANAGEMENT,57(1),21-29.
MLA	Whitford, WG,et al."Using resistance and resilience measurements for ’fitness’ tests in ecosystem health".JOURNAL OF ENVIRONMENTAL MANAGEMENT 57.1(1999):21-29.