Title: Distributional and demographic consequences of Pleistocene glaciations for a marine demersal fish
Authors: Larmuseau, Maarten
Van Houdt, Jeroen
Hellemans, Bart
Guelinckx, Jef
Volckaert, Filip #
Issue Date: Nov-2008
Conference: World Conference on Marine Biodiversity location:Valencia, Spain date:11-15 November 2008
Abstract: The Pleistocene glaciations were the most significant historical event during the evolutionary lifespan of most
extant species. However, little is known about the consequences of the ice ages on the distribution and
demography of marine animals of the Northeastern Atlantic. Because of reduced levels of contemporary gene
flow, a marine demersal fish, the sand goby (Pomatoschistus minutus; Gobiidae, Teleostei) has been chosen for a
phylogeographic study using cytochrome b sequences and eight microsatellites. Because of the absence of a fossil
record, only ecological and taxonomical information could be used to calibrate the for gobies typically high
evolutionary clock. Reciprocal monophyly occurred between the Mediterranean and Atlantic populations with a
divergence dated in the Middle-Pleistocene. The Atlantic Clade contains an Iberian and North Atlantic (NA)
Group, from which only the latter did contribute to the most recent postglacial distribution expansion. The
historical demography of the Mediterranean Clade was mainly influenced by Middle Pleistocene glaciations in
contrast to the two Atlantic ESUs who show for the first time evidence for a recent, most likely post-LGM,
Publication status: published
KU Leuven publication type: IMa
Appears in Collections:Laboratory for Aquatic Ecology and Evolutionary Biology (-)
Ecology, Evolution and Biodiversity Conservation Section
Department of Imaging & Pathology - miscellaneous
Forensic Biomedical Sciences
# (joint) last author

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