Legacy lost: genetic variability and population size of extirpated US grey wolves ( Canis lupus )
作者： JENNIFER A. LEONARD , CARLES VILÀ , ROBERT K. WAYNE
DOI: 10.1111/J.1365-294X.2004.02389.X
关键词:
摘要: By the mid 20th century, grey wolf ( Canis lupus ) was exterminated from most of conterminous United States (cUS) and Mexico. However, because wolves disperse over long distances, extant populations in Canada Alaska might have retained a substantial proportion genetic diversity once found cUS. We analysed mitochondrial DNA sequences 34 pre-extermination that they had more than twice their modern conspecifics, implying historic population size several hundred thousand western cUS Further, two-thirds haplotypes sample are unique. Sequences Mexican C. l. baileyi some defined unique southern clade supporting much wider geographical mandate for reintroduction currently planned. Our results highlight consequences extinction within Ice Age refugia imply restoration goals include far less area target vastly lower sizes existed historically.
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