Show simple item record Giery, Sean T. Layman, Craig A.
dc.coverage.spatial The Bahamas
dc.coverage.spatial Caribbean 2017-03-13T16:39:05Z 2017-03-13T16:39:05Z 2017-04-05
dc.identifier doi:10.5061/dryad.gh225
dc.identifier.citation Giery ST, Layman CA (2017) Dissolved organic carbon and unimodal variation in sexual signal coloration in mosquitofish: a role for light limitation?. Proceedings of the Royal Society B 284(1852): 20170163.
dc.identifier.issn 0962-8452
dc.description Natural selection plays an important role in the evolution of sexual communication systems. Here, we assess the effect of two well-known selection agents, transmission environment and predation, on interpopulation variation in sexual signals. Our model system is a series of 21 populations of Bahamian mosquitofish subjected to independent variation in optical conditions and predation risk. We show that optically diverse environments, caused by locally variable dissolved organic carbon concentrations, rather than spatial variation in predation, drove divergence in fin coloration (fin redness). We found a unimodal pattern of phenotypic variation along the optical gradient indicating a threshold-type response of visual signals to broad variation in optical conditions. We discuss evolutionary and ecological mechanisms that may drive such a pattern as well as the implications of non-monotonic clines for evolutionary differentiation.
dc.relation.haspart doi:10.5061/dryad.gh225/2
dc.relation.haspart doi:10.5061/dryad.gh225/3
dc.relation.haspart doi:10.5061/dryad.gh225/1
dc.relation.isreferencedby doi:10.1098/rspb.2017.0163
dc.subject Gambusia
dc.subject natural selection
dc.subject Poeciliidae
dc.subject sexual selection
dc.subject communication
dc.subject light limitation
dc.title Data from: Dissolved organic carbon and unimodal variation in sexual signal coloration in mosquitofish: a role for light limitation?
dc.type Article
dwc.ScientificName Gambusia hubbsi
dwc.ScientificName Gambusia minimus
dc.contributor.correspondingAuthor Giery, Sean
prism.publicationName Proceedings of the Royal Society B

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Title DOC
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Description Measures of Dissolved organic carbon by fluorometry. Units are RFUs.
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Title Transmission
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Description Light transmission relative to distilled water standard
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Title Gambusia
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Description Morphological measures of Gambusia
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