Polymorphism, parallel evolution, and purpose of dewlap hue in Lesser Antillean Dactyloa anoles
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DOI
Against a background of conservative dewlap hue among Lesser Antillean Dactyloa anoles, within-population polymorphism is present in a Martinique habitat where UV/grey dewlaps are markedly different to the widespread yellow/orange dewlaps. Moreover, parallel evolution on Martinique and St. Vincent of 1) UV/grey dewlaps in similar habitats, and 2) small but consistent differences between dewlap hue in xeric versus montane habitats, imply natural selection. Anole dewlaps are widely thought to have a role in species recognition and potentially act as a pre-mating isolating mechanism, and this is compatible with the degree of genetic isolation in an “ecological speciation” paradigm, but not in an “allopatric speciation” paradigm
Keywords
- anole, Dactyloa, Lesser Antilles, dewlap, spectrometry, ultraviolet markings, parallel evolution, speciation, isolating mechanisms.
| Original language | English |
|---|---|
| Article number | 96 |
| Pages (from-to) | 1-13 |
| Number of pages | 13 |
| Journal | Caribbean Herpetology |
| Volume | 96 |
| Issue number | 96 |
| DOIs | |
| Publication status | Published - 26 Sept 2024 |