Rapid divergence of social signal coloration across the White Sands ecotone for three lizard species under strong natural selection Export

@article{citeulike:5806992, abstract = {Animal social signals are important for population recognition, communication, and mate choice. Although natural selection often favours cryptic coloration, sexual selection can underlie patterns of coloration that function in inter- or intrasexual communication. We compared social signal coloration of three lizard species across a substrate colour ecotone in New Mexico. These species exhibit cryptic blanched dorsal coloration on the gypsum dunes of White Sands and dark coloration on the surrounding desert soils. We detected corresponding population divergence in colour used for intra- (Aspidoscelis inornata, Sceloporus undulatus) or inter- (Holbrookia maculata) sexual signalling. Although the magnitude and direction of change in coloration varied among taxa, differences in hue and chroma accounted for more variation in social coloration than for dorsal coloration. The relative conspicuousness of social signals also varied across the ecotone. We discuss the possibilities that divergent signalling colours in this system are the result of: (1) stochastic processes, (2) direct selection, and/or (3) a correlated response to natural selection on dorsal coloration.\&\#8195;\&\#169; 2009 The Linnean Society of London, Biological Journal of the Linnean Society, 2009, 98, 243-255.}, author = {Robertson, Jeanne M. A. R. I. E. and Rosenblum, Erica B. R. E. E.}, citeulike-article-id = {5806992}, citeulike-linkout-0 = {http://dx.doi.org/10.1111/j.1095-8312.2009.01291.x}, citeulike-linkout-1 = {http://www.ingentaconnect.com/content/bsc/bij/2009/00000098/00000002/art00001}, doi = {10.1111/j.1095-8312.2009.01291.x}, issn = {0024-4066}, journal = {Biological Journal of the Linnean Society}, keywords = {camouflage, color, lizard}, month = {October}, number = {2}, pages = {243--255}, posted-at = {2009-09-24 22:03:20}, priority = {5}, publisher = {Blackwell Publishing}, title = {Rapid divergence of social signal coloration across the White Sands ecotone for three lizard species under strong natural selection}, url = {http://dx.doi.org/10.1111/j.1095-8312.2009.01291.x}, volume = {98}, year = {2009} }

TY - JOUR ID - citeulike:5806992 L3 - citeulike-article-id:5806992 N2 - Animal social signals are important for population recognition, communication, and mate choice. Although natural selection often favours cryptic coloration, sexual selection can underlie patterns of coloration that function in inter- or intrasexual communication. We compared social signal coloration of three lizard species across a substrate colour ecotone in New Mexico. These species exhibit cryptic blanched dorsal coloration on the gypsum dunes of White Sands and dark coloration on the surrounding desert soils. We detected corresponding population divergence in colour used for intra- (Aspidoscelis inornata, Sceloporus undulatus) or inter- (Holbrookia maculata) sexual signalling. Although the magnitude and direction of change in coloration varied among taxa, differences in hue and chroma accounted for more variation in social coloration than for dorsal coloration. The relative conspicuousness of social signals also varied across the ecotone. We discuss the possibilities that divergent signalling colours in this system are the result of: (1) stochastic processes, (2) direct selection, and/or (3) a correlated response to natural selection on dorsal coloration. © 2009 The Linnean Society of London, Biological Journal of the Linnean Society, 2009, 98, 243-255. IS - 2 JF - Biological Journal of the Linnean Society SN - 0024-4066 EP - 255 TI - Rapid divergence of social signal coloration across the White Sands ecotone for three lizard species under strong natural selection PB - Blackwell Publishing VL - 98 SP - 243 KW - camouflage KW - color KW - lizard AU - Robertson, Jeanne AU - Rosenblum, Erica PY - 2009/10// UR - http://dx.doi.org/10.1111/j.1095-8312.2009.01291.x ER -