Pusch, Katja and Seifert, Bernhard and Foitzik, Susanne and Heinze, Jürgen (2006) Distribution and genetic divergence of two parapatric sibling ant species in Central Europe. Biological Journal of the Linnean Society 88 (2), pp. 223-234.
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The two sibling ant species Temnothorax nylanderi and Temnothorax crassispinus are widely distributed throughout deciduous forests in Europe. Their resemblance in morphology and similar ecological requirements suggest that they evolved from the same ancestral species in different glacial refugia and re-immigrated into Central Europe after the last ice age. Here, we show that the two species are parapatrically distributed in south-eastern Germany and hybridize along a narrow contact zone close to the continental divide. Phylogeographical data based on the mitochondrial genes cytochrome oxidase subunit I and cytochrome b suggest that the dominant haplotypes for T. nylanderi and T. crassispinus might have diverged already 1.5–2 Mya. Intraspecific variability is extremely low in both species, which might be explained by severe bottlenecks during rapid postglacial expansion into Central Europe.
|Institutions:||Biology, Preclinical Medicine > Institut für Zoologie|
|Keywords:||allozymes; colony odour; glacial refugium; hybridization; morphometry; mtDNA; phylogeography; sibling species; Temnothorax crassispinus; Temnothorax nylanderi|
|Subjects:||500 Science > 570 Life sciences|
500 Science > 590 Zoological sciences
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||07 Jul 2006|
|Last Modified:||20 Jul 2011 20:47|