A Practical Guide for Genetic Management of Fragmented Animal and Plant Populations

A Practical Guide for Genetic Management of Fragmented Animal and Plant Populations
Author :
Publisher : Oxford University Press
Total Pages : 197
Release :
ISBN-10 : 9780191086083
ISBN-13 : 0191086088
Rating : 4/5 (088 Downloads)

Book Synopsis A Practical Guide for Genetic Management of Fragmented Animal and Plant Populations by : Richard Frankham

Download or read book A Practical Guide for Genetic Management of Fragmented Animal and Plant Populations written by Richard Frankham and published by Oxford University Press. This book was released on 2019-10-23 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: The habitats of most species have been fragmented by human actions, isolating small populations that consequently develop genetic problems. Millions of small, isolated, fragmented populations are likely suffering from inbreeding depression and loss of genetic diversity, greatly increasing their risk of extinction. Crossing between populations is required to reverse these effects, but managers rarely do so. A key reason for such inaction is that managers are often advised to manage populations in isolation whenever molecular genetic methods indicate genetic differences among them. Following this advice will often doom small populations to extinction when the habitat fragmentation and genetic differences were caused by human activities. A paradigm shift is required whereby evidence of genetic differentiation among populations is a trigger to ask whether any populations are suffering genetic problems, and if so, whether they can be rescued by augmenting gene flow. Consequently, there is now an urgent need for an authoritative practical guide to facilitate this paradigm shift in genetic management of fragmented populations.


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