Temporal variation in genetic structure within the threatened spectacled eider

Conservation Genetics
By: , and 

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Abstract

We examined the genetic structure of the threatened spectacled eider 14–18 years after the initial assessment to evaluate the influence of population recovery on diversity. Concordant with the initial assessment, spectacled eiders were highly structured at mitochondrial (mt) DNA and lacked differentiation at microsatellite loci. The degree and spatial pattern of structure has changed at mtDNA; a 33.0–40.3% reduction in overall FST and ΦST, respectively, and a marked reduction in pairwise FST (-83.1 to -91.4%) among Alaska sites. Reduction in genetic structure is suggestive of increased female dispersal within Alaska. These findings highlight the importance of reevaluating genetic diversity as species recover from declines as microevolutionary and demographic processes are dynamic and continually shape associations among populations.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Temporal variation in genetic structure within the threatened spectacled eider
Series title Conservation Genetics
DOI 10.1007/s10592-019-01234-9
Edition Online First
Year Published 2019
Language English
Publisher Taylor & Francis
Contributing office(s) Alaska Science Center Biology WTEB
Country United States
State Alaska