Abstract：
:Emerging Bayesian analytical approaches offer increasingly sophisticated means of reconstructing historical population dynamics from genetic data, but have been little applied to scenarios involving demographic bottlenecks. Consequently, we analysed a large mitochondrial and microsatellite dataset from the Antarctic fur seal Arctocephalus gazella, a species subjected to one of the most extreme examples of uncontrolled exploitation in history when it was reduced to the brink of extinction by the sealing industry during the late eighteenth and nineteenth centuries. Classical bottleneck tests, which exploit the fact that rare alleles are rapidly lost during demographic reduction, yielded ambiguous results. In contrast, a strong signal of recent demographic decline was detected using both Bayesian skyline plots and Approximate Bayesian Computation, the latter also allowing derivation of posterior parameter estimates that were remarkably consistent with historical observations. This was achieved using only contemporary samples, further emphasizing the potential of Bayesian approaches to address important problems in conservation and evolutionary biology.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Hoffman JI,Grant SM,Forcada J,Phillips CDdoi
10.1111/j.1365-294X.2011.05248.xsubject
Has Abstractpub_date
2011-10-01 00:00:00pages
3989-4008issue
19eissn
0962-1083issn
1365-294Xjournal_volume
20pub_type
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