期刊
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
卷 98, 期 2, 页码 243-255出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1095-8312.2009.01291.x
关键词
Aspidoscelis; ecological speciation; Holbrookia; Sceloporus; sensory drive; sexual selection
资金
- White Sands National Monument
- Jornada Long-term Ecological Research Station
- New Mexico Department of Game and Fish
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. (C) 2009 The Linnean Society of London, Biological Journal of the Linnean Society, 2009, 98, 243-255.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据