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Phenotypic and genetic divergence in reed frogs across a mosaic hybrid zone on Sao Tome Island

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dc.contributor.author Bell, Rayna C. en
dc.contributor.author Irian, Christian G. en
dc.date.accessioned 2019-11-15T15:26:41Z
dc.date.available 2019-11-15T15:26:41Z
dc.date.issued 2019
dc.identifier.citation Bell, Rayna C. and Irian, Christian G. 2019. "Phenotypic and genetic divergence in reed frogs across a mosaic hybrid zone on Sao Tome Island." <em>Biological Journal of the Linnean Society</em>. 128 (3):672&ndash;680. <a href="https://doi.org/10.1093/biolinnean/blz131">https://doi.org/10.1093/biolinnean/blz131</a> en
dc.identifier.issn 0024-4066
dc.identifier.uri https://hdl.handle.net/10088/99474
dc.description.abstract Although naturally heterogeneous environments can lead to mosaic hybrid zones, human-induced habitat fragmentation can also lead to environmental heterogeneity and hybridization. Here we quantify phenotypic and molecular divergence across a reed frog mosaic hybrid zone on SAo Tome Island as a first step towards understanding the consequences of hybridization across this heterogeneous landscape. The SAo Tome giant reed frog (Hyperolius thomensis) is strongly tied to cool, wet, forest habitats whereas the distribution of Moller&#39;s reed frog (H. molleri) spans cool, wet, forests to warm, dry, disturbed habitats. Correspondingly, hybridization is concentrated in the more forested, cool, wet sites relative to non-forested, warmer, drier habitats. Four of six sites with hybrid frogs are artificial water bodies near the forest edge, indicating that both breeding habitat and broader scale environmental variation are probably important for understanding interspecific interactions and the extent of hybridization in this system. Phenotypic variation (body size and ventral coloration) largely tracks genetic and environmental variation across the hybrid zone with larger and more pigmented frogs occurring in forested, cool, wet habitats. Understanding whether human-induced changes in habitat break down reproductive barriers will be essential for conservation management of the less abundant, forest-associated H. thomensis in the face of rampant hybridization. en
dc.relation.ispartof Biological Journal of the Linnean Society en
dc.title Phenotypic and genetic divergence in reed frogs across a mosaic hybrid zone on Sao Tome Island en
dc.type Journal Article en
dc.identifier.srbnumber 153116
dc.identifier.doi 10.1093/biolinnean/blz131
rft.jtitle Biological Journal of the Linnean Society
rft.volume 128
rft.issue 3
rft.spage 672
rft.epage 680
dc.description.SIUnit NMNH en
dc.description.SIUnit NH-Vertebrate Zoology en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 672
dc.citation.epage 680

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