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
Energetic cost of feeding on different kinds of prey for the lizard Chalcides ocellatus
TL;DR: Differences in handling times are probably more important than differences in energetic costs in determining the desirability of different types of prey.
Journal ArticleDOI
Foraging Ecology and Prey Preference of Pond-form Larval Small-mouthed Salamanders, Ambystoma texanum
TL;DR: The behavior of Bufo americanus tadpoles in response to high densities of micro-organisms has been studied in this paper, where they associate preferentially w th siblings.
Journal ArticleDOI
Plant consumption in coastal populations of the lizard Tropidurus torquatus (Reptilia: Squamata: Tropiduridae): how do herbivory rates vary along their geographic range?
TL;DR: The data obtained indicate that the observed interpopulational variation in plant consumption by T. torquatus results from local environmental factors, mainly the availability of plant matter.
Journal ArticleDOI
Morphometric variation in island and mainland populations of two lizard species from the Pacific Coast of Mexico
Uriel Hernández-Salinas,Uriel Hernández-Salinas,Aurelio Ramírez-Bautista,Numa P. Pavón,Luis F. Rosas Pacheco +4 more
TL;DR: This study supports the hypothesis (island rule) that vertebrates on islands are larger than those of conspecifics on the mainland and examines sexual dimorphism observed between males and females of both species and populations.
Tropidurus (=uracentron) flaviceps (tropiduridae) in lowland rain forest of ecuador
Laurie J. Vitt,Peter A. Zani +1 more
TL;DR: Observations on the composition of social groups within single trees suggests that the breeding system is a resource-based polygyny and sexual dimorphism in limb length does not translate into differences in performance.
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)