Journal of Heredity Advance Access originally published online on February 24, 2005
Journal of Heredity 2005 96(4):381-387; doi:10.1093/jhered/esi040
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Genetic Differentiation Among Populations of the Salt Marsh Beetle Pogonus littoralis (Coleoptera: Carabidae): A Comparison Between Atlantic and Mediterranean Populations
From the Department of Entomology, Royal Belgian Institute of Natural Sciences, Vautierstreet 29, B-1000 Brussels, Belgium (Dhuyvetter, Gaublomme, Verdyck, and Desender); and University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium (Verdyck)
Address correspondence to Hilde Dhuyvetter at the address above, or e-mail: hildedhuyvetter{at}yahoo.com.
Genetic differentiation was studied among populations of the salt marsh beetle Pogonus littoralis (Coleoptera: Carabidae), comparing Atlantic and Mediterranean populations over a large part of its range. The genetic structure of this highly mobile beetle was investigated by studying allozyme polymorphism at nine enzyme loci in 13 populations. Mediterranean P. littoralis were highly significantly differentiated from Atlantic populations. Moreover, more isolated Atlantic populations showed increased differentiation and decreased genetic diversity compared to less fragmented Mediterranean populations.