Journal ArticleDOI
The Ecological Significance of Sexual Dimorphism in Size in the Lizard Anolis conspersus.
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TLDR
Anolis conspersus selects prey from a wide range of taxa and shows no obvious intraspecific specialization not connected to differences in microhabitat and prey size.Abstract:
Adult males of Anolis conspersus capture prey of significantly larger size and occupy perches of significantly greater diameter and height than do adult females; similarly, these three dimensions of the niche are significantly larger for adult females than for juveniles. Adult males on the average eat a smaller number of prey, and the range in size of prey is larger. The relationship between the average length of the prey and that of the predator is linear when the predator size is above 36 millimeters, but becomes asymptotic when it is below that value. Subadult males as long as adult females eat significantly larger food than do the latter, but only in the larger lizards is this correlated with a relatively larger head. Anolis conspersus selects prey from a wide range of taxa and shows no obvious intraspecific specialization not connected to differences in microhabitat and prey size. The efficiency of this system for solitary species is pointed out.read more
Citations
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Journal ArticleDOI
Geographic Variation of Sexual Dimorphism in the Raccoon Procyon lotor
Mark E. Ritke,Michael L. Kennedy +1 more
TL;DR: It appears that selection pressures responsible for sexual dimorphism in raccoons are acting uniformly throughout much of the range of the species.
Journal ArticleDOI
Dimorphism and divergence in island and mainland Anoles
Hugo H. Siliceo-Cantero,Andrés García,R. Graham Reynolds,Gualberto Pacheco,Bradford C. Lister +4 more
TL;DR: It is concluded that convergence on a generalist morphology is widespread among solitary anoles in the West Indies, probably due to similar adaptive landscapes shaped by selective forces common to small island environments.
Journal ArticleDOI
Community invasion by complex life cycles
James W. Haefner,Judith L. Edson +1 more
TL;DR: A simulation model based on life table calculations was used to describe the ecological conditions under which a CLC can increase when rare in the presence of one and two competitors having simple life cycles (SLCs).
Journal ArticleDOI
Sexual differences in behavioral thermoregulation of the lizard Scelarcis perspicillata
TL;DR: The effect of sex and reproductive condition on the thermoregulation of an introduced population of Scelarcis perspicillata during the summer in Menorca is studied, with observed results attributable to sexual differences in behaviour, probably in relation with the reproductive season.
Journal ArticleDOI
Reproductive biology and sexual dimorphism in Cnemidophorus vacariensis (Sauria, Teiidae) in the grasslands of the Araucaria Plateau, southern Brazil
TL;DR: The reproductive cycle and sexual dimorphism of the lizard Cnemidophorus vacariensis Feltrim & Lema, 2000 were studied and suggestions for conservation measures are presented, due to the observed degradation of this species' environment.
References
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Journal ArticleDOI
Ecological Distribution in Anoline Lizards of Puerto Rico
TL;DR: The eight species of the genus Anolis in Puerto Rico can be divided into four morphological similarities as discussed by the authors : perch height, perch diameter, high-shade preference and low-shading preference.
Journal ArticleDOI
Correlations between ecology and morphology in anoline lizards from Havana, Cuba, and southern Florida
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The Life of the Rainbow Lizard
Robert F. Inger,Vernon A. Harris +1 more
TL;DR: The life of the rainbow lizard , The life of a rainbow lizard, مرکز فناوری اطلاعات £1,000,000 ($2,000; £1,500,000)