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. 2012 Sep-Oct;103(5):703-10.
doi: 10.1093/jhered/ess040. Epub 2012 Aug 9.

The pitcher plant flesh fly exhibits a mixture of patchy and metapopulation attributes

Gordana Rasic  1 , Nusha Keyghobadi
Affiliations

The pitcher plant flesh fly exhibits a mixture of patchy and metapopulation attributes

Gordana Rasic et al. J Hered. 2012 Sep-Oct.

Abstract

We investigated the pattern of spatial genetic structure and the extent of gene flow in the pitcher plant flesh fly Fletcherimyia fletcheri, the largest member of the inquiline community of the purple pitcher plant Sarracenia purpurea. Using microsatellite loci, we tested the theoretical predictions of different hypothesized population models (patchy population, metapopulation, or isolated populations) among 11 bogs in Algonquin Provincial Park (Canada). Our results revealed that the pitcher plant flesh fly exhibits a mixture of patchy and metapopulation characteristics. There is significant differentiation among bogs and limited gene flow at larger spatial scales, but local populations do not experience frequent local extinctions/recolonizations. Our findings suggest a strong dispersal ability and stable population sizes in F. fletcheri, providing novel insights into the ecology of this member of a unique ecological microcosm.

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