Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3996/082013-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
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ISSN | 1944-687X |
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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