Contrasting genetic diversity and population structure among three sympatric Madagascan shorebirds: parallels with rarity, endemism, and dispersal

Ecology and Evolution
Luke J Eberhart-PhillipsM W Bruford

Abstract

Understanding the relative contributions of intrinsic and extrinsic factors to population structure and genetic diversity is a central goal of conservation and evolutionary genetics. One way to achieve this is through comparative population genetic analysis of sympatric sister taxa, which allows evaluation of intrinsic factors such as population demography and life history while controlling for phylogenetic relatedness and geography. We used ten conserved microsatellites to explore the population structure and genetic diversity of three sympatric and closely related plover species in southwestern Madagascar: Kittlitz's plover (Charadrius pecuarius), white-fronted plover (C. marginatus), and Madagascar plover (C. thoracicus). Bayesian clustering revealed strong population structure in the rare and endemic Madagascar plover, intermediate population structure in the white-fronted plover, and no detectable population structure in the geographically widespread Kittlitz's plover. In contrast, allelic richness and heterozygosity were highest for the Kittlitz's plover, intermediate for the white-fronted plover and lowest for the Madagascar plover. No evidence was found in support of the "watershed mechanism" proposed to facilitate vica...Continue Reading

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Citations

Feb 25, 2017·Evolution; International Journal of Organic Evolution·Josephine D'Urban JacksonClemens Küpper
Oct 11, 2017·The Ibis·Natalie Dos RemediosPatricia L M Lee
May 18, 2018·Behavioral Ecology : Official Journal of the International Society for Behavioral Ecology·Charles CunninghamTamás Székely
Apr 27, 2018·Nature Communications·Luke J Eberhart-PhillipsOliver Krüger
Sep 23, 2021·Proceedings. Biological Sciences·Andrew J HelmstetterAlexander S T Papadopulos

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Methods Mentioned

BETA
PCR
genotyping

Software Mentioned

R Development Core Team
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WorldClim
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HP
MRMPA
R Pumpkin Helmet

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