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Pleistocene climate change and the formation of regional species pools
Umeå University, Faculty of Science and Technology, Department of Physics. Departamento de Ciencias de la Vida, Universidad de Alcala´, Edificio de Ciencias, Ctra. Madrid-Barcelona km. 33,6, Alcala´ de Henares, 28871 Madrid, Spain; Department of Biogeography and Global Change, Museo Nacional de Ciencias Naturales (MNCN-CSIC), C/Jose´ Gutie´rrez Abascal 2, 28006 Madrid, Spain.
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2019 (English)In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 286, no 1905, article id 20190291Article in journal (Refereed) Published
Abstract [en]

Although the description of bioregions dates back to the origin of biogeography, the processes originating their associated species pools hive been seldom studied. Ancient historical events are thought to play a fundamental role in configuring bioregions, but the effects of more recent events on these regional biotas are largely unknown. We used a network approach to identify regional and sub-regional faunas of European Carabus beetles and developed a method to explore the relative contribution of dispersal barriers, niche similarities and phylogenetic history on their configuration. We identify a transition zone matching the limit of the ice sheets at the Last Glacial Maximum. While southern species pools are mostly separated by dispersal barriers, in the north species are mainly sorted by their environmental niches. Strikingly, most phylogenetic structuration of Carabus faunas occurred during the Pleistocene. Our results show how extreme recent historical events - such as Pleistocene climate cooling, rather than just deep-time evolutionary processes-can profoundly modify the composition and structure of geographical species pools.

Place, publisher, year, edition, pages
Royal Society Publishing , 2019. Vol. 286, no 1905, article id 20190291
Keywords [en]
Pleistocene glaciations, historical biogeography, bioregions, dispersal, niche tracking, Carabus ground beetles
National Category
Evolutionary Biology
Identifiers
URN: urn:nbn:se:umu:diva-161514DOI: 10.1098/rspb.2019.0291ISI: 000472210500001PubMedID: 31213189OAI: oai:DiVA.org:umu-161514DiVA, id: diva2:1337206
Available from: 2019-07-12 Created: 2019-07-12 Last updated: 2019-07-12Bibliographically approved

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Calatayud, Joaquín

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