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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Comparison of Diets of Two Syntopic Lizards, Aspidoscelis marmorata and Aspidoscelis tesselata (Teiidae), from the Northern Chihuahuan Desert of Texas
TL;DR: The hypothesis that syntopic A. tesselata and A. marmorata were partitioning food resources on the study area was not supported; both species are opportunistic feeders that consume similar food types.
Journal ArticleDOI
Reproduction, diet and sexual dimorphism of Gymnodactylus geckoides Spix, 1825 (Sauria: Squamata) from a Restinga area in northeastern Brazil
TL;DR: Analysis of Gymnodactylus geckoides’ reproduction, diet and sexual dimorphism concluded that environment seasonality did not influence reproduction and phylogenetic inertia is proposed as one possible force explaining clutch size patterns found.
Journal ArticleDOI
Geographic variation in morphology of Dark-eyed Juncos and implications for population divergence
TL;DR: Museum specimens are used to examine tail white and body size, as measured by wing and tail length, of males and females within and among 13 geographically distinct Dark-eyed Junco subspecies to indicate about the generation and maintenance of divergence among the subspecies.
Journal Article
A review of sexual dimorphism of eye size in Colubroidea snakes
Faiman Roy,Abergil Daniel,Babocsay Gergely,Edoardo Razzetti,Seligmann Hervé,Yehudah L. Werner +5 more
TL;DR: Overall generally the SMD of eye size was smaller than body SMD, which accords with a hypothesis that eye size affects the evolution of head size and itsSMD, both reflecting and emphasizing that absolute eye size is functionally important.
Journal ArticleDOI
Sexual Dimorphism and Reproductive Characteristics in Five Species of Leiocephalus Lizards from the Dominican Republic
Matthew E. Gifford,Robert Powell +1 more
TL;DR: Sexual dimorphism in size and head shape and reproductive life-history characteristics for five species of Leiocephalus from the Dominican Republic suggest that sexual selection may be operative and suggestive of an optimal reproductive strategy for LeIOcephalus lizards.
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)