Arid
DOI10.3996/082013-JFWM-055
Desert Bighorn Sheep: Changes in Genetic Variation Over Time and the Impact of Merging Populations
Hedrick, Philip W.1; Wehausen, John D.2
通讯作者Hedrick, Philip W.
来源期刊JOURNAL OF FISH AND WILDLIFE MANAGEMENT
ISSN1944-687X
出版年2014
卷号5期号:1页码:3-13
英文摘要

Founder effects, genetic bottlenecks, and genetic drift in general can lead to low levels of genetic diversity, which can influence the persistence of populations. We examine genetic variation in two populations of desert bighorn sheep Ovis canadensis from New Mexico and Mexico to measure change over time and evaluate the impact of introducing individuals from one population into the other. Over about three generations, the amount of genetic variation in the New Mexico population increased. In contrast, over about two generations the amount of genetic variation in the Mexican population decreased by a great extent compared with an estimate from another Mexican population from which it is primarily descended. The potential reasons for these changes are discussed. In addition, although both populations have low genetic variation, introduction of Mexican rams into the New Mexico population might increase the amount of genetic variation in the New Mexico population. Overall, it appears that management to increase genetic variation might require substantial detailed monitoring and evaluation of ancestry from the different sources and fitness components.


英文关键词effective population size genetic drift genetic rescue heterozygosity
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000338436900001
WOS关键词INBREEDING DEPRESSION ; INSULAR POPULATION ; FLORIDA PANTHERS ; OVIS-CANADENSIS ; MOUNTAIN SHEEP ; MEXICAN WOLVES ; RESCUE ; RESTORATION ; MAMMALS
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构Arizona State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/183294
作者单位1.Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA;
2.Univ Calif, White Mt Res Ctr, Bishop, CA 93514 USA
推荐引用方式
GB/T 7714
Hedrick, Philip W.,Wehausen, John D.. Desert Bighorn Sheep: Changes in Genetic Variation Over Time and the Impact of Merging Populations[J]. Arizona State University,2014,5(1):3-13.
APA Hedrick, Philip W.,&Wehausen, John D..(2014).Desert Bighorn Sheep: Changes in Genetic Variation Over Time and the Impact of Merging Populations.JOURNAL OF FISH AND WILDLIFE MANAGEMENT,5(1),3-13.
MLA Hedrick, Philip W.,et al."Desert Bighorn Sheep: Changes in Genetic Variation Over Time and the Impact of Merging Populations".JOURNAL OF FISH AND WILDLIFE MANAGEMENT 5.1(2014):3-13.
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