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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Mechanisms causing variation in sexual size dimorphism in three sympatric, congeneric lizards
TL;DR: Investigation of three sympatric, congeneric lizard species with different degrees and directions of adult sexual dimorphism compared their growth patterns, survival probabilities, and intersexual trophic niche differences suggests differential selection on adult body size has been responsible for the observed species-specific differences in juvenile growth rates and maturational timing.
Journal ArticleDOI
Ambushing and prey-luring as alternative foraging tactics of the fly-catching rove beetle Leistotrophus versicolor (Coleoptera: Staphylinidae).
Adrian Forsyth,John Alcock +1 more
TL;DR: The tropical forest rove beetle Leistotrophus versicoloris a specialized obligate predator of adult Diptera that exhibits unusual flexibility and complexity in the capture of its prey.
Journal ArticleDOI
Niche Divergence Among Sex and Age Classes in Black-and-White Snub-nosed Monkeys (Rhinopithecus bieti)
TL;DR: It is suggested that the preference for and benefit of the central layer of fir tree crown lies in food availability, but that adult male competitively excluded group members.
Journal ArticleDOI
Sexual Dimorphism in Leposternon microcephalum and L. wuchereri (Squamata: Amphisbaenidae) from Minas Gerais, Southeastern Brazil
Renato Filogonio,Conrado A. B. Galdino,Daniel P. R. Cabral,Alexandre Ferreira Righi,Marcelo F. Lopes,Luciana B. Nascimento +5 more
TL;DR: Both species exhibited sexual dimorphism for different morphometric variables, while males of L. microcephalum have wider heads than conspecific females, males of Leposternon wuchereri have wider, longer and taller heads than females but are smaller in body size.
Analysis of sexual dimorphism in the Persian long-tailed desert lizard, Mesalina watsonana (Stoliczka, 1872; Sauria: Lacertidae)
TL;DR: It is suggested that in Mesalina watsonana, body size could be the product of sexual and natural selection modified by ecological factors and head size parameter has a more pronounced effect on the degree of sexual dimorphism than the length factors.
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)