Patterns of throat colour variation in Quedenfeldtia trachyblepharus, a high-altitude gecko endemic to the High Atlas Mountains of Morocco
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
You must be logged in to use this functionality
The persistence of marked phenotypic variation within species is evolutionarily puzzling. We uncovered remarkable variation in throat colouration in a high-altitude gecko (Atlas Day Gecko, Quedenfeldtia trachyblepharus) endemic to the High Atlas Mountains of Morocco. Orange, yellow, and white variants were found in approximately equal proportions in both sexes, and in juveniles and adults. The colour variants did not differ in body size or in body condition, but there was some indication that orange males have relatively longer jaws than white or yellow males. The number of mites harboured by an individual was not a function of its sex or of its throat colouration, but larger lizards did harbour more mites. Our data do not support the hypotheses that throat colour variation is due to selection pressures differing between the sexes or through ontogeny, or signals immunocompetence, but offer some support for the hypothesis that throat colour variation signals dominance. Future investigations on the evolution of throat colour variation in this species should use spectrophotometry to obtain finer colour classification and incorporate measures of fitness.
Full text loading...
Andrés J.A. , Sánchez-Guillén R.A. , Cordero Rivera A. ( 2002): "Evolution of female colour polymorphism in damselflies: testing the hypotheses". An. Behav. Vol 63: 677- 685. http://dx.doi.org/10.1006/anbe.2001.1948
Brodie E.D. III ( 1992): "Correlational selection for color pattern and antipredator behavior in the garter snake Thamnophis ordinoides ". Evolution Vol 46: 1284- 1298. http://dx.doi.org/10.2307/2409937
Côté J. , Le Galliard J.F. , Rossi J.M. , Fitze P.S. ( 2008): "Environmentally induced changes in carotenoid-based coloration of female lizards: a comment on Vercken et al." J. Evol. Biol. Vol 21: 1165- 1172. http://dx.doi.org/10.1111/j.1420-9101.2008.01534.x
Gray S.M. , McKinnon J.S. ( 2007): "Linking color polymorphism maintenance and speciation". TREE Vol 22: 71- 79.
Huyghe K. , Van Oystaeyen A. , Pasmans F. , Tadic Z. , Vanhooydonck B. , Van Damme R. ( 2010): "Seasonal changes in parasite load and a cellular immune response in a colour polymorphic lizard". Oecologia Vol 163: 867- 874. http://dx.doi.org/10.1007/s00442-010-1646-9
Lancaster L. , McAdam A. , Wingfield J. , Sinervo B. ( 2007): "Adaptive social and maternal induction of antipredator dorsal patterns in a lizard with alternative social strategies". Ecol. Let. Vol 10: 798- 808. http://dx.doi.org/10.1111/j.1461-0248.2007.01069.x
Penn D.J. , Potts W.K. ( 1999): "The evolution of mating preferences and major histocompatibility complex genes". Am. Nat. Vol 153: 145- 164. http://dx.doi.org/10.1086/303166
Salvador A. , Diaz J.A. , Veiga J.P. , Bloor P. , Brown R.P. ( 2008): "Correlates of reproductive success in male lizards of the alpine species Iberolacerta cyreni ". Behav. Ecol. Vol 19: 169- 176. http://dx.doi.org/10.1093/beheco/arm118
Sinervo B. , Lively C.M. ( 1996): "The rock-paper-scissors game and the evolution of alternative male strategies". Nature Vol 380: 240- 243. http://dx.doi.org/10.1038/380240a0
Vercken E. , Massot M. , Sinervo B. , Clobert J. ( 2007): "Colour variation and alternative reproductive strategies in females of the common lizard Lacerta vivipara ". J. Evol. Biol. Vol 20: 221- 232. http://dx.doi.org/10.1111/j.1420-9101.2006.01208.x