期刊
BIOESSAYS
卷 33, 期 7, 页码 508-518出版社
WILEY
DOI: 10.1002/bies.201000154
关键词
biodiversity; climate change; dispersal; hybridization; reproductive isolation
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Fond Quebecois de Recherche sur la Nature et les Technologies
- NSERC Canada
- The Pacific Century Graduate Scholarship
- University of British Columbia
- NSERC
- National Science Foundation
We identify two processes by which humans increase genetic exchange among groups of individuals: by affecting the distribution of groups and dispersal patterns across a landscape, and by affecting interbreeding among sympatric or parapatric groups. Each of these processes might then have two different effects on biodiversity: changes in the number of taxa through merging or splitting of groups, and the extinction/extirpation of taxa through effects on fitness. We review the various ways in which humans are affecting genetic exchange, and highlight the difficulties in predicting the impacts on biodiversity. Gene flow and hybridization are crucially important evolutionary forces influencing biodiversity. Humans alter natural patterns of genetic exchange in myriad ways, and these anthropogenic effects are likely to influence the genetic integrity of populations and species. We argue that taking a gene-centric view towards conservation will help resolve issues pertaining to conservation and management.
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