Results 41 to 50 of about 600 (191)

Oligoquetofagia por Anolis sagrei y nectarivoría por Anolis porcatus (Squamata: Dactyloidae): nuevas observaciones

Novitates Caribaea, 2021
Nuevas observaciones de campo confirman que la ingestión de lombrices de tierra (Oligochaeta) por Anolis sagrei no es un evento tan raro como se creía. De igual modo, las observaciones realizadas en tres inviernos consecutivos (2019, 2020, 2021), durante
Luis F. de Armas
doaj   +1 more source

Riparian buffers provide refugia during secondary forest succession

Diversity and Distributions, Volume 28, Issue 9, Page 2008-2019, September 2022., 2022
Abstract Aim Secondary forests regenerating from human disturbance are increasingly becoming a predominant forest type in many regions, and they play a significant role in forest community dynamics. Understanding the factors that underlie the variation in species responses during secondary succession is important for understanding community assembly ...
Michelle E. Thompson, Brian J. Halstead, Maureen A. Donnelly   +2 more
wiley   +1 more source

Hemipenial morphology and diversity in South American anoles (Squamata: Dactyloidae) [PDF]

Canadian Journal of Zoology, 2016
Hemipenial morphology has provided useful characters to improve species identification and phylogenetic relationships in squamates. Here we provide hemipenial description and illustration of 13 South American anoles. At generic and specific levels, differences are mainly related to shape and ornamentation; intraspecific variation is low.
D'Angiolella, Annelise Batista, Klaczko, Julia, Rodrigues, Miguel Trefaut Urbano, Avila Pires, Teresa Cristina Sauer   +3 more
openaire   +1 more source

Herpetofauna from two municipalities of southwestern Colombia

Biota Colombiana, 2020
We present a preliminary list of the herpetofauna of Tumaco and Francisco Pizarro municipalities, department of Nariño, Colombia, located in the south of the Chocó biogeographic region, based on field data and on museum collection databases and ...
María Alejandra Pinto-Erazo, Martha Lucía Calderón Espinosa, Guido Fabian Medina Rangel, Miguel Ángel Méndez Galeano   +3 more
doaj   +1 more source

A most unusual tail: Scoliosis in a wild Australian skink, and reported incidences and suggested causes of similar malformations amongst squamates

Austral Ecology, Volume 47, Issue 3, Page 723-728, May 2022., 2022
AbstractMalformations of vertebrae potentially occur across many taxa, particularly in Testudines, which are susceptible to kyphosis (dorsoventral curvature of the spine). Such malformations may stem from either genetic or environmental origins, and their prevalence and associated impacts on survival remain poorly understood.
Philip W. Bateman, Robyn Benken, Ryan Glowacki, Robert A. Davis   +3 more
wiley   +1 more source

FIGURE 2 in Two new species of semiaquatic Anolis (Squamata: Dactyloidae) from Costa Rica

, 2023
FIGURE 2. Principal component analysis showing as Anolis aquaticus populations segregate in three different groups based on morphology.Published as part of Chaves, Gerardo, Ryan, Mason J., Bolaños, Federico, Márquez, Cruz, Köhler, Gunther & Poe, Steven ...
Köhler, Gunther, Chaves, Gerardo, Ryan, Mason J., Márquez, Cruz, Bolaños, Federico, Poe, Steven   +5 more
core   +1 more source

Dewlap colour variation in Anolis sagrei is maintained among habitats within islands of the West Indies

Journal of Evolutionary Biology, Volume 35, Issue 5, Page 680-692, May 2022., 2022
Animal signals evolve in an ecological context. Here, we show how coloration (as measured by reflectance profiles) of the dewlap in the neotropical lizard Anolis sagrei varies among habitats and islands throughout the Bahamas and Cayman Islands. Abstract Animal signals evolve in an ecological context.
Raphaël Scherrer, Colin M. Donihue, Robert Graham Reynolds, Jonathan B. Losos, Anthony J. Geneva   +4 more
wiley   +1 more source

Genetic structure and landscape effects on gene flow in the Neotropical lizard Norops brasiliensis (Squamata: Dactyloidae). [PDF]

Heredity (Edinb)
AbstractOne key research goal of evolutionary biology is to understand the origin and maintenance of genetic variation. In the Cerrado, the South American savanna located primarily in the Central Brazilian Plateau, many hypotheses have been proposed to explain how landscape features (e.g., geographic distance, river barriers, topographic ...
Fonseca EM, Pope NS, Peterman WE, Werneck FP, Colli GR, Carstens BC.   +5 more
europepmc   +3 more sources

Are evolutionary transitions in sexual size dimorphism related to sex determination in reptiles?

Journal of Evolutionary Biology, Volume 34, Issue 4, Page 594-603, April 2021., 2021
The phylogenetic distribution of sex determination systems (outer ring) and sexual size dimorphism (inner ring) in reptiles. Abstract Sex determination systems are highly variable in vertebrates, although neither the causes nor the implications of this diversity are fully understood.
Gergely Katona, Balázs Vági, Zsolt Végvári, András Liker, Robert P. Freckleton, Veronika Bókony, Tamás Székely   +6 more
wiley   +1 more source

Movement Rates of the LizardAnolis carolinensis(Squamata: Dactyloidae) in the Presence and Absence ofAnolis sagrei(Squamata: Dactyloidae)

Breviora, 2015
Abstract Shifts in a species' habitat can be precipitated by co-occurring with a closely related, ecologically similar species, to avoid negative interspecific interactions. Such shifts in habitat may also cause a change in movement behavior in sympatric populations compared with allopatric populations.
Kamath, Ambika, Stuart, Yoel E
openaire   +1 more source