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

Richard Frankham, Jonathan D Ballou, Katherine Ralls, Mark D B Eldridge, Michele R Dudash, Charles B Fenster, Robert C Lacy, Paul Sunnucks

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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.

This accessible book is aimed at a global market of conservation practitioners, natural resource managers and their advisors. It will also be a substantial resource for senior undergraduate and graduate level students taking courses in conservation biology, conservation genetics, and wildlife management.
Original languageEnglish
PublisherOxford University Press
Number of pages208
ISBN (Print)9780198783411, 9780198783428
Publication statusPublished - 2019

Cite this

Frankham, R., Ballou, J. D., Ralls, K., Eldridge, M. D. B., Dudash, M. R., Fenster, C. B., ... Sunnucks, P. (2019). A Practical Guide for Genetic Management of Fragmented Animal and Plant Populations. Oxford University Press. https://doi.org/10.1093/oso/9780198783411.001.0001