Polymorphism, parallel evolution, and purpose of dewlap hue in Lesser Antillean Dactyloa anoles
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In: Caribbean Herpetology, Vol. 96, No. 96, 96, 26.09.2024, p. 1-13.
Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Polymorphism, parallel evolution, and purpose of dewlap hue in Lesser Antillean Dactyloa anoles
AU - Thorpe, Roger
AU - Johansson, Helena
AU - Surget-Groba, Yann
AU - Thorpe, Jacqueline
PY - 2024/9/26
Y1 - 2024/9/26
N2 - 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
AB - 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
KW - anole, Dactyloa, Lesser Antilles, dewlap, spectrometry, ultraviolet markings, parallel evolution, speciation, isolating mechanisms.
U2 - 10.31611/ch.96
DO - 10.31611/ch.96
M3 - Article
VL - 96
SP - 1
EP - 13
JO - Caribbean Herpetology
JF - Caribbean Herpetology
IS - 96
M1 - 96
ER -