Molecular and ecological evidence for small-scale isolation by distance in an endangered damselfly, Coenagrion mercuriale

Molecular Ecology
Phillip C WattsD J Thompson

Abstract

Coenagrion mercuriale (Charpentier) (Odonata: Zygoptera) is one of Europe's most threatened damselflies and is listed in the European Habitats directive. We combined an intensive mark-release-recapture (MRR) study with a microsatellite-based genetic analysis for C. mercuriale from the Itchen Valley, UK, as part of an effort to understand the dispersal characteristics of this protected species. MRR data indicate that adult damselflies are highly sedentary, with only a low frequency of interpatch movement that is predominantly to neighbouring sites. This restricted dispersal leads to significant genetic differentiation throughout most of the Itchen Valley, except between areas of continuous habitat, and isolation by distance (IBD), even though the core populations are separated by less than 10 km. An urban area separating some sites had a strong effect on the spatial genetic structure. Average pairwise relatedness between individual damselflies is positive at short distances, reflecting fine-scale genetic clustering and IBD both within- and between-habitat patches. Damselflies from a fragmented habitat have higher average kinship than those from a large continuous population, probably because of poorer dispersal and localized bre...Continue Reading

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Citations

Aug 19, 2011·Conservation Biology : the Journal of the Society for Conservation Biology·Allison K Leidner, Nick M Haddad
Sep 16, 2011·BMC Evolutionary Biology·Yuma TakahashiMamoru Watanabe
Dec 26, 2015·Parasites & Vectors·Maria G OnyangoJean-Bernard Duchemin
Mar 12, 2008·Molecular Ecology·Emilie LeclercLouis Bernatchez
Jun 20, 2013·Annals of the New York Academy of Sciences·Timothy G Howard, Matthew D Schlesinger
Aug 21, 2010·Molecular Ecology·Andrew StorferLisette P Waits
Mar 19, 2013·Molecular Ecology·Shalene Jha, C Kremen
Aug 6, 2013·Global Change Biology·Christopher HassallPhillip C Watts
Mar 16, 2018·Molecular Ecology·Amy E LeedaleBen J Hatchwell

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