干旱区生态环境知识资源中心(Arid): Genetic and Environmental Indicators of Climate Change Vulnerability for Desert Bighorn Sheep

Arid

DOI	10.3389/fevo.2020.00279
	Genetic and Environmental Indicators of Climate Change Vulnerability for Desert Bighorn Sheep
	Creech, Tyler G.; Epps, Clinton W.; Wehausen, John D.; Crowhurst, Rachel S.; Jaeger, Jef R.; Longshore, Kathleen; Holton, Brandon; Sloan, William B.; Monello, Ryan J.
通讯作者	Creech, TG
来源期刊	FRONTIERS IN ECOLOGY AND EVOLUTION
ISSN	2296-701X
出版年	2020
卷号	8
英文摘要	Assessments of organisms' vulnerability to potential climatic shifts are increasingly common. Such assessments are often conducted at the species level and focused primarily on the magnitude of anticipated climate change (i.e., climate exposure). However, wildlife management would benefit from population-level assessments that also incorporate measures of local or regional potential for organismal adaptation to change. Estimates of genetic diversity, gene flow, and landscape connectivity can address this need and complement climate exposure estimates to establish management priorities at broad to local scales. We provide an example of this holistic approach for desert bighorn sheep (Ovis canadensis nelsoni) within and surrounding lands administered by the U.S. National Park Service. We used genetic and environmental data from 62 populations across the southwestern U.S. to delineate genetic structure, evaluate relationships between genetic diversity and isolation, and estimate relative climate vulnerability for populations as a function of five variables associated with species' responses to climate change: genetic diversity, genetic isolation, geographic isolation, forward climate velocity within a population's habitat patch (a measure of geographic movement rate required for an organism to maintain constant climate conditions), and maximum elevation within the habitat patch (a measure of current climate stress, as lower maximum elevation is associated with higher temperature, lower precipitation, and lower population persistence). Genetic structure analyses revealed a high-level division between populations in southeastern Utah and populations in the remainder of the study area, which were further differentiated into four lower-level genetic clusters. Genetic diversity decreased with population isolation, whereas genetic differentiation increased, but these patterns were stronger for native populations than for translocated populations. Populations exhibited large variation in predicted vulnerability across the study area with respect to all variables, but native populations occupying relatively intact landscapes, such as Death Valley and Grand Canyon national parks, had the lowest overall vulnerability. These results provide local and regional context for conservation and management decisions regarding bighorn populations in a changing climate. Our study further demonstrates how assessments combining multiple factors could allow a more integrated response, such as increasing efforts to maintain connectivity and thus potential for adaptation in areas experiencing rapid climate change.
英文关键词	connectivity genetic diversity genetic structure Ovis canadensis vulnerability
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	SCI-E
WOS记录号	WOS:000570579100001
WOS关键词	MOUNTAIN LION PREDATION ; ASSESSING POPULATION-STRUCTURE ; EXTINCTION RISK ; INTEGRATED FRAMEWORK ; NICHE MODELS ; F-STATISTICS ; R-PACKAGE ; CONSERVATION ; LANDSCAPE ; IMPACTS
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326358
作者单位	[Creech, Tyler G.; Epps, Clinton W.; Crowhurst, Rachel S.] Oregon State Univ, Dept Fisheries & Wildlife, Corvallis, OR 97331 USA; [Wehausen, John D.] Univ Calif, White Mt Res Ctr, Bishop, CA USA; [Jaeger, Jef R.] Univ Nevada, Sch Life Sci, Las Vegas, NV 89154 USA; [Longshore, Kathleen] US Geol Survey, Western Ecol Res Ctr, Henderson, NV USA; [Holton, Brandon] Grand Canyon Natl Pk, Natl Pk Serv, Grand Canyon, AZ USA; [Sloan, William B.] Natl Pk Serv, Southeast Utah Grp, Moab, UT USA; [Monello, Ryan J.] Hawaii Natl Pk, Natl Pk Serv, Inventory & Monitoring Program, Pacific Isl Network, Hilo, HI USA; [Creech, Tyler G.] Ctr Large Landscape Conservat, Bozeman, MT 59715 USA
推荐引用方式 GB/T 7714	Creech, Tyler G.,Epps, Clinton W.,Wehausen, John D.,et al. Genetic and Environmental Indicators of Climate Change Vulnerability for Desert Bighorn Sheep[J]. United States Geological Survey,2020,8.
APA	Creech, Tyler G..,Epps, Clinton W..,Wehausen, John D..,Crowhurst, Rachel S..,Jaeger, Jef R..,...&Monello, Ryan J..(2020).Genetic and Environmental Indicators of Climate Change Vulnerability for Desert Bighorn Sheep.FRONTIERS IN ECOLOGY AND EVOLUTION,8.
MLA	Creech, Tyler G.,et al."Genetic and Environmental Indicators of Climate Change Vulnerability for Desert Bighorn Sheep".FRONTIERS IN ECOLOGY AND EVOLUTION 8(2020).