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BMC Evolutionary Biology

, 16:237

Phylogenetics and phylogeography

Abstract

BackgroundUnderstanding how past climatic oscillations have affected organismic evolution will help predict the impact that current climate change has on living organisms. The European turtle dove, Streptopelia turtur, is a warm-temperature adapted species and a long distance migrant that uses multiple flyways to move between Europe and Africa. Despite being abundant, it is categorized as vulnerable because of a long-term demographic decline. We studied the demographic history and population genetic structure of the European turtle dove using genomic data and mitochondrial DNA sequences from individuals sampled across Europe, and performing paleoclimatic niche modelling simulations.

ResultsOverall our data suggest that this species is panmictic across Europe, and is not genetically structured across flyways. We found the genetic signatures of demographic fluctuations, inferring an effective population size Ne expansion that occurred between the late Pleistocene and early Holocene, followed by a decrease in the Ne that started between the mid Holocene and the present. Our niche modelling analyses suggest that the variations in the Ne are coincident with recent changes in the availability of suitable habitat.

ConclusionsWe argue that the European turtle dove is prone to undergo demographic fluctuations, a trait that makes it sensitive to anthropogenic impacts, especially when its numbers are decreasing. Also, considering the lack of genetic structure, we suggest all populations across Europe are equally relevant for conservation.

KeywordsPopulation genetic structure Demography Migratory birds Genomics Conservation Paleoclimatic niche modelling Climate change Electronic supplementary materialThe online version of this article doi:10.1186-s12862-016-0817-7 contains supplementary material, which is available to authorized users.

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Autor: Luciano Calderón - Leonardo Campagna - Thomas Wilke - Hervé Lormee - Cyril Eraud - Jenny C. Dunn - Gregorio Rocha - Pave

Fuente: https://link.springer.com/







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