Leaps and bounds : geographical and ecological distance constrained the colonisation of the Afrotemperate by Erica

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dc.contributor.authorPirie, Michael D.en_ZA
dc.contributor.authorKandziora, Marthaen_ZA
dc.contributor.authorNürk, Nicolai M.en_ZA
dc.contributor.authorLe Maitre, Nicholas C.en_ZA
dc.contributor.authorMugrabi De Kuppler, Anaen_ZA
dc.contributor.authorGehrke, Beriten_ZA
dc.contributor.authorOliver, Edward G. H.en_ZA
dc.contributor.authorBellstedt, Dirk U.en_ZA
dc.date.accessioned2019-12-09T06:10:50Z
dc.date.available2019-12-09T06:10:50Z
dc.date.issued2019-12-05
dc.date.updated2019-12-08T05:17:45Z
dc.descriptionCITATION: Pirie, M. D., et al. 2019. Leaps and bounds : geographical and ecological distance constrained the colonisation of the Afrotemperate by Erica. BMC Evolutionary Biology, 19:222, doi:10.1186/s12862-019-1545-6.
dc.descriptionThe original publication is available at https://bmcevolbiol.biomedcentral.com
dc.description.abstractBackground: The coincidence of long distance dispersal (LDD) and biome shift is assumed to be the result of a multifaceted interplay between geographical distance and ecological suitability of source and sink areas. Here, we test the influence of these factors on the dispersal history of the flowering plant genus Erica (Ericaceae) across the Afrotemperate. We quantify similarity of Erica climate niches per biogeographic area using direct observations of species, and test various colonisation scenarios while estimating ancestral areas for the Erica clade using parametric biogeographic model testing. Results: We infer that the overall dispersal history of Erica across the Afrotemperate is the result of infrequent colonisation limited by geographic proximity and niche similarity. However, the Drakensberg Mountains represent a colonisation sink, rather than acting as a “stepping stone” between more distant and ecologically dissimilar Cape and Tropical African regions. Strikingly, the most dramatic examples of species radiations in Erica were the result of single unique dispersals over longer distances between ecologically dissimilar areas, contradicting the rule of phylogenetic biome conservatism. Conclusions: These results highlight the roles of geographical and ecological distance in limiting LDD, but also the importance of rare biome shifts, in which a unique dispersal event fuels evolutionary radiation.
dc.description.urihttps://bmcevolbiol.biomedcentral.com/articles/10.1186/s12862-019-1545-6
dc.description.versionPublisher's version
dc.format.extent12 pages : illustrationsen_ZA
dc.identifier.citationPirie, M. D., et al. 2019. Leaps and bounds : geographical and ecological distance constrained the colonisation of the Afrotemperate by Erica. BMC Evolutionary Biology, 19:222, doi:10.1186/s12862-019-1545-6
dc.identifier.issn1471-2148 (online)
dc.identifier.otherdoi:10.1186/s12862-019-1545-6
dc.identifier.urihttp://hdl.handle.net/10019.1/106898
dc.language.isoen_ZAen_ZA
dc.publisherBMC (part of Springer Nature)
dc.rights.holderAuthors retain copyright
dc.subjectAfrotemperateen_ZA
dc.subjectBiogeography -- Effect of climatic changes onen_ZA
dc.subjectEricaceae -- South Africa -- Drakensberg Mountainsen_ZA
dc.subjectPlants -- Phylogenyen_ZA
dc.titleLeaps and bounds : geographical and ecological distance constrained the colonisation of the Afrotemperate by Ericaen_ZA
dc.typeArticleen_ZA
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