Global realized niche divergence in the African clawed frog Xenopus laevis

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dc.contributor.authorRodder, Dennisen_ZA
dc.contributor.authorIhlow, Floraen_ZA
dc.contributor.authorCourant, Julienen_ZA
dc.contributor.authorSecondi, Jeanen_ZA
dc.contributor.authorHerrel, Anthonyen_ZA
dc.contributor.authorRebelo, Ruien_ZA
dc.contributor.authorMeasey, G. J.en_ZA
dc.contributor.authorLillo, Francescoen_ZA
dc.contributor.authorDe Villiers, F. A.en_ZA
dc.contributor.authorDe Busschere, Charlotteen_ZA
dc.contributor.authorBackeljau, Thierryen_ZA
dc.date.accessioned2018-08-23T09:44:33Z
dc.date.available2018-08-23T09:44:33Z
dc.date.issued2017
dc.descriptionCICATION: Rodder, D. et al. 2017. How beta diversity and the underlying causes vary with sampling scales in the Changbai mountain forests. Ecology & Evolution, 7(23):10116-10123. doi:10.1002/ece3.3010.en_ZA
dc.descriptionThe original publication is available at https://onlinelibrary.wiley.comen_ZA
dc.description.abstractAlthough of crucial importance for invasion biology and impact assessments of climate change, it remains widely unknown how species cope with and adapt to environmental conditions beyond their currently realized climatic niches (i.e., those climatic conditions existing populations are exposed to). The African clawed frog Xenopus laevis, native to southern Africa, has established numerous invasive populations on multiple continents making it a pertinent model organism to study environmental niche dynamics. In this study, we assess whether the realized niches of the invasive populations in Europe, South, and North America represent subsets of the species’ realized niche in its native distributional range or if niche shifts are traceable. If shifts are traceable, we ask whether the realized niches of invasive populations still contain signatures of the niche of source populations what could indicate local adaptations. Univariate comparisons among bioclimatic conditions at native and invaded ranges revealed the invasive populations to be nested within the variable range of the native population. However, at the same time, invasive populations are well differentiated in multidimensional niche space as quantified via n-dimensional hypervolumes. The most deviant invasive population are those from Europe. Our results suggest varying degrees of realized niche shifts, which are mainly driven by temperature related variables. The crosswise projection of the hypervolumes that were trained in invaded ranges revealed the south-western Cape region as likely area of origin for all invasive populations, which is largely congruent with DNA sequence data and suggests a gradual exploration of novel climate space in invasive populations.en_ZA
dc.description.sponsorshipBiodivERsA; Deutsche Forschungsgemeinschaft, Grant/Award Number: DFG RO 4520/3-1en_ZA
dc.description.versionPublishers versionen_ZA
dc.identifier.citationRodder, D. et al. 2017. How beta diversity and the underlying causes vary with sampling scales in the Changbai mountain forests. Ecology & Evolution, 7(23):10116-10123. doi:10.1002/ece3.3010.en_ZA
dc.identifier.issn2045-7758 (online)
dc.identifier.issndoi:10.1002/ece3.3010
dc.identifier.urihttp://hdl.handle.net/10019.1/104332
dc.language.isoen_ZAen_ZA
dc.publisherJohn Wiley & Sons Ltden_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectSpecies niche dynamicsen_ZA
dc.subjectAfrican clawed frog (Xenopus laevis)en_ZA
dc.subjectInvasive speciesen_ZA
dc.subjectEnvironmental niche dynamicsen_ZA
dc.subjectNiche evolutionen_ZA
dc.subjectNiche shiften_ZA
dc.titleGlobal realized niche divergence in the African clawed frog Xenopus laevisen_ZA
dc.typeArticleen_ZA
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