Multivariate phenotypes and the potential for alternative phenotypic optima in wall lizard (Podarcis muralis) ventral colour morphs
- 13 May 2010
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Evolutionary Biology
- Vol. 23 (6), 1138-1147
- https://doi.org/10.1111/j.1420-9101.2010.01978.x
Abstract
A major goal in evolutionary biology is to determine how phenotypic variation arises and is maintained in natural populations. Recent studies examining the morphological, physiological and behavioural differences among discrete colour morphotypes (morphs) have revealed several mechanisms that maintain discrete variation within populations, including frequency-dependence, density-dependence and correlational selection. For example, trade-offs over resource allocation to morphological, physiological and behavioural traits can drive correlational selection for morph-specific phenotypic optima. Here, we describe a ventral colour polymorphism in the wall lizard (Podarcis muralis) and test the hypothesis that morphs differ along multivariate axes defined by trade-offs in morphological, physiological, and immunological traits. We show that ventral colour is a discrete trait and that morphs differ in body size, prevalence of infection by parasites and infection intensity. We also find that morphs differ along multivariate phenotypic axes and experience different multivariate selection pressures. Our results suggest that multivariate selection pressures may favour alternative optimal morph-specific phenotypes in P. muralis.Keywords
This publication has 47 references indexed in Scilit:
- Frequency-dependent reproductive success in female common lizards: a real-life hawk–dove–bully game?Oecologia, 2009
- Colour variation in female common lizards: why we should speak of morphs, a reply to Cote et al.Journal of Evolutionary Biology, 2008
- Red dominates black: agonistic signalling among head morphs in the colour polymorphic Gouldian finchProceedings Of The Royal Society B-Biological Sciences, 2005
- COUNTERACTING SELECTIVE REGIMES AND HOST PREFERENCE EVOLUTION IN ECOTYPES OF TWO SPECIES OF WALKING-STICKSEvolution, 2005
- Characterization of microsatellite loci in the wall lizard Podarcis muralis (Sauria: Lacertidae)Molecular Ecology Notes, 2003
- SOCIAL CAUSES OF CORRELATIONAL SELECTION AND THE RESOLUTION OF A HERITABLE THROAT COLOR POLYMORPHISM IN A LIZARDEvolution, 2001
- Reduced tail regeneration in the Common Lizard, Lacerta vivipara, parasitized by blood parasitesFunctional Ecology, 1997
- On the measurement and classification of colour in studies of animal colour patternsBiological Journal of the Linnean Society, 1990
- Prevalence and Virulence of a Haemogregarine Parasite of the Aruban Whiptail Lizard, Cnemidophorus arubensisJournal of Herpetology, 1986