Testing for selection on color and pattern in a mimetic radiation |
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| Affiliation: | 1.Department of Biology, East Carolina University, Greenville, NC, 27858;Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, LA 70118;2.Department of Biology, East Carolina University, Greenville, NC, 27858;Department of Biology, Duke University, Durham, NC 27708;3.Universidad de Ricardo Palma, Lima, Peru;4.Department of Integrative Biology, University of Texas, Austin, Texas 78712;5.Department of Biology, East Carolina University, Greenville, NC, 27858 |
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| Abstract: | In this paper,we analyze variation in spectral reflectance and color pattern among populations to demonstrate dramatic divergence between four distinct morphs of the mimic poison frog Ranitomeya imitator.We also analyze genetic divergence in d-loop mtDNA sequences between populations.We then use coalescent-based simulations to demonstrate that the high levels of observed phenotypic divergence are not consistent with levels of genetic divergence expected under neutral drift among populations,implying an important role for selection in driving divergence between these populations. |
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| Keywords: | Mullerian Mimicry Natural Selection Population Divergence Coalescent |
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