Journal ArticleDOI
The Ecological Significance of Sexual Dimorphism in Size in the Lizard Anolis conspersus.
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
Diet variability among insular populations of Podarcis lizards reveals diverse strategies to face resource-limited environments.
Maxime Taverne,Anne-Claire Fabre,Nina King-Gillies,Maria Krajnović,Duje Lisičić,Louise Martin,Leslie Michal,Donat Petricioli,Anamaria Štambuk,Zoran Tadić,Chloé Vigliotti,Beck A. Wehrle,Anthony Herrel +12 more
TL;DR: It is suggested that an increase in intraspecific competition for access to resources may induce shifts in functional components of the diet, and sexual dimorphism in diet and head dimensions is not greater on smaller islands, in contrast to the predictions.
Journal ArticleDOI
Facultative Specialization in the Diet of the Twelve-lined Whiptail, Aspidoscelis lineatissima
TL;DR: Dietary differences among lizard size classes and seasons were found, indicating opportunistic use of temporally abundant arthropods, and dietary composition was similar between the sexes.
Journal ArticleDOI
Sexual Shape Dimorphism in Tuatara
TL;DR: Data based on preserved specimens from museum collections show a previously undocumented dimorphism in head and limb shape in Sphenodon, with males having bigger heads and longer limbs for a given body size than females.
Journal ArticleDOI
Development of prey-specific predatory behavior in a jumping spider (Araneae: Salticidae)
Maciej Bartos,Katarzyna Szczepko +1 more
TL;DR: Checking the influence of age and experience on pre-programmed predatory behavior and predatory success of Yllenus arenarius Menge 1868 found age-dependent changes occurred in four aspects of predation: direction of approach, mode of approach and distance of attack.
Body size, sexual dimorphism, and clutch size in two
TL;DR: Sceloporus ochoteranae from the Cañón del Zopilote were smaller, had narrower heads and longer femurs, and had smaller clutches than those from Acatlan (elevation 1,250 m).
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
Book
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)