Evolution of blind beetles in isolated aquifers: a test of alternative modes of speciation

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dc.contributor.authorLeijs, R.
dc.contributor.authorvan Nes, E.
dc.contributor.authorWatts, C.
dc.contributor.authorCooper, S.
dc.contributor.authorHumphreys, W.
dc.contributor.authorHogendoorn, K.
dc.contributor.editorHansson, B.
dc.date.issued2012
dc.description.abstractEvidence is growing that not only allopatric but also sympatric speciation can be important in the evolution of species. Sympatric speciation has most convincingly been demonstrated in laboratory experiments with bacteria, but field-based evidence is limited to a few cases. The recently discovered plethora of subterranean diving beetle species in isolated aquifers in the arid interior of Australia offers a unique opportunity to evaluate alternative modes of speciation. This naturally replicated evolutionary experiment started 10-5 million years ago, when climate change forced the surface species to occupy geographically isolated subterranean aquifers. Using phylogenetic analysis, we determine the frequency of aquifers containing closely related sister species. By comparing observed frequencies with predictions from different statistical models, we show that it is very unlikely that the high number of sympatrically occurring sister species can be explained by a combination of allopatric evolution and repeated colonisations alone. Thus, diversification has occurred within the aquifers and likely involved sympatric, parapatric and/or microallopatric speciation.
dc.description.statementofresponsibilityRemko Leijs, Egbert H. van Nes, Chris H. Watts, Steven J.B. Cooper, William F. Humphreys and Katja Hogendoorn
dc.identifier.citationPLoS One, 2012; 7(3):1-8
dc.identifier.doi10.1371/journal.pone.0034260
dc.identifier.issn1932-6203
dc.identifier.issn1932-6203
dc.identifier.orcidCooper, S. [0000-0002-7843-8438]
dc.identifier.orcidHogendoorn, K. [0000-0002-4942-8062]
dc.identifier.urihttp://hdl.handle.net/2440/72976
dc.language.isoen
dc.publisherPublic Library of Science
dc.relation.granthttp://purl.org/au-research/grants/arc/A00106441
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0663675
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0346583
dc.rightsCopyright: © 2012 Leijs et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dc.source.urihttps://doi.org/10.1371/journal.pone.0034260
dc.subjectAnimals
dc.subjectModels, Statistical
dc.subjectBayes Theorem
dc.subjectReproducibility of Results
dc.subjectAnimal Migration
dc.subjectEcosystem
dc.subjectPhylogeny
dc.subjectSpecies Specificity
dc.subjectGeography
dc.subjectModels, Genetic
dc.subjectAustralia
dc.subjectGenetic Speciation
dc.subjectBiological Evolution
dc.subjectColeoptera
dc.titleEvolution of blind beetles in isolated aquifers: a test of alternative modes of speciation
dc.typeJournal article
pubs.publication-statusPublished

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