Results 121 to 130 of about 143,816 (390)

Sex, Age, and Population Density Affect Aggressive Behaviors in Island Lizards Promoting Cannibalism

open access: yes, 2015
Island populations may evolve distinct behavioral repertoires as a response to the conditions of insular life. Strong intraspecific competition is typical in insular lizards and may include cannibalism.
W. Cooper, I. Dimopoulos, P. Pafilis
semanticscholar   +1 more source

Population Variation in Steroid Hormone‐Related Gene Expression and Sexually Dimorphic Communication in the Electric Fish Apteronotus albifrons

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT The development and maintenance of sexually dimorphic behavior often depends on gonadal steroids. Interspecific variation in the magnitude of behavioral sex differences may be mediated by differences in steroid action on neural circuits controlling behavior.
Melissa R. Proffitt, G. Troy Smith
wiley   +1 more source

Potential distribution of the endangered endemic lizard Liolaemus lutzae Mertens, 1938 (Liolaemidae): are there other suitable areas for a geographically restricted species?

open access: yesBrazilian Journal of Biology
In this study we attempted to access further information on the geographical distribution of the endangered lizard Liolaemus lutzae, estimating its potential distribution through the maximum entropy algorithm.
GR. Winck, P. Almeida-Santos, CFD. Rocha
doaj   +1 more source

Plasmodium kentropyxi n.sp. (Apicomplexa: Haemosporina: Plasmodiidae) and a Plasmodium tropiduri-like parasite in the lizard Kentropyx calcarata (Lacertilia: Teiidae) in North Brazil

open access: yesParasite, 2001
Plasmodium kentropyxi n.sp. is described in the teiid lizard Kentropyx calcarata from north Brazil. Young asexual stages and gametocytes are at first polar in the erythrocyte but with elongation, move to a lateral position. Largest meronts seen contained
Lainson R., Landau I., Paperna I.
doaj   +1 more source

Captive reptile mortality rates in the home and implications for the wildlife trade [PDF]

open access: yes, 2015
The trade in wildlife and keeping of exotic pets is subject to varying levels of national and international regulation and is a topic often attracting controversy.
A Hailey   +47 more
core   +3 more sources

The Interplay of Ontogeny and Phylogeny at the Transcriptome Level of the Tetrapod Heart

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
The main stages of development during which species‐specific heart anatomy is determined in the ontogeny of representative tetrapods. Transcriptomic similarity is expected earlier in development before heart anatomy diverges. ABSTRACT The tetrapod heart is characterized by three chambers in amphibians and non‐avian reptiles, as opposed to four in birds,
G. A. Cordero   +10 more
wiley   +1 more source

Abiotic constraints on the activity of tropical lizards

open access: yes, 2015
Summary 1. Many tropical ectotherms are considered vulnerable to anthropogenic climate change because they have evolved to become thermal specialists. Indeed, several recent studies have suggested that even small increases in mean operative temperature ...
Michael L. Logan   +2 more
semanticscholar   +1 more source

The impact of gigafire on vegetation structure, terrestrial vertebrate abundance and diel activity

open access: yesOikos, EarlyView.
Fire regimes are shifting around the world due to climate and land‐use change, resulting in an increased frequency of large and severe wildfires. However, the impact of extreme wildfire events on animal species remains poorly understood. Particularly lacking is an understanding of how fire affects animal behaviour.
Grant D. Linley   +6 more
wiley   +1 more source

Anolis oculatus [PDF]

open access: yes, 1992
Number of Pages: 4Integrative BiologyGeological ...
Malhotra, Anita, Thorpe, Roger S.
core   +1 more source

Lizard's tail

open access: yes, 2018
Elan annotation file for the audio file with the same name.
openaire   +1 more source

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