Results 21 to 30 of about 1,102 (186)

Ancient Introgression Explains Mitochondrial Genome Capture and Mitonuclear Discordance Among South American Collared Tropidurus Lizards. [PDF]

Mol Ecol
ABSTRACT Mitonuclear discordance—evolutionary discrepancies between mitochondrial and nuclear DNA phylogenies—can arise from various factors, including introgression, incomplete lineage sorting, recent or ancient demographic fluctuations, sex‐biased dispersal asymmetries, among others.
Salles MMA, Carvalho ALG, Leaché AD, Martinez N, Bauer F, Motte M, Espínola V, Rodrigues MT, Piantoni C, Pie MR, Olivotto A, Colli GR, Choueri EL, Werneck FP, Domingos FMCB.   +14 more
europepmc   +2 more sources

Urban-Wild Interface Diversity: A Comprehensive Checklist of Herpetofauna of Guayaquil, Ecuador. [PDF]

Ecol Evol
Amphibians and reptiles in Guayaquil comprise multiple taxonomic orders and occur across conservation areas, forest remnants, and urban parks, including several endemic species and numerous taxa with type localities in the city. Although most species are globally classified as Least Concern, discrepancies between global and national threat assessments ...
Cruz-García K, Zapata-Salvatierra N, Narváez AE, Pérez-Correa J.   +3 more
europepmc   +2 more sources

Closer to the Heart: Cardiac Muscle Aerobic Capacity Correlates With Intraspecific Variation in Sprint Performance Rather Than Androgen Levels in the Neotropical Lizard Tropidurus catalanensis. [PDF]

J Exp Zool A Ecol Integr Physiol
In male lizards Tropidurus catalanensis, sprint locomotor performance correlates with cardiac aerobic capacity. ABSTRACT Assessments of the interplay between physiology and whole‐organism performance are fundamental to understand how individuals function in different ecological contexts.
Lima WS, Giacometti D, Schaeffer PJ, de Carvalho JE.   +3 more
europepmc   +2 more sources

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

Geometric morphometric analysis of the head of Microlophus atacamensis (Tropiduridae) in a latitudinal gradient. [PDF]

Zool Stud, 2015
Clinal variation is defined as gradual variation in a character associated with geographic distance among sites. Microlophus atacamensis is a medium large lizard species which inhabits the intertidal zone of northern Chile, distributed from Antofagasta (23° 39' S) to Arrayán, La Serena (29° 41' S) in a gradient which could show clinal variation ...
Ibáñez S, Vidal MA, Ortiz JC, Torres-Pérez F.   +3 more
europepmc   +4 more sources

Morphological study of the integument and corporal skeletal muscles of two psammophilous members of Scincidae (Scincus scincus and Eumeces schneideri)

Journal of Morphology, Volume 282, Issue 2, Page 230-246, February 2021., 2021
Photograph of holocrine glands between the folds of the skin of Scincus scincus. Compound osteoderms are located on both sides. The skin surface is visible on the upper right side. Abstract Sand deserts are common biotopes on the earth's surface. Numerous morphological and physiological adaptations have appeared to cope with the peculiar conditions ...
Jérôme Canei, Denis Nonclercq
wiley   +1 more source

Four new species of polychromatic spiny-tailed iguanian lizards, genus Stenocercus (Iguania: Tropiduridae), from Peru

, 2022
Venegas, Pablo J., García-Ayachi, Luis A., Chávez-Arribasplata, Juan C., García-Bravo, Antonio (2022): Four new species of polychromatic spiny-tailed iguanian lizards, genus Stenocercus (Iguania: Tropiduridae), from Peru.
Chávez-Arribasplata, Juan C., Venegas, Pablo J., García-Bravo, Antonio, García-Ayachi, Luis A.   +3 more
core   +2 more sources

A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)

, 2001
The lizard genus Liolaemus includes over 160 species of which almost h lf are in the chiliensis group. Although some researchers have attempted to define smaller species groups within this large clade, the relationships among the taxa within the group as
Lobo Gaviola, Fernando Jose
core   +2 more sources

First record of tail bifurcation in Tropidurus hygomi Reinhardt & Lütken, 1862 (Squamata: Tropiduridae) in northeast Brazil

, 2022
First record of tail bifurcation in Tropidurus hygomi Reinhardt & Lütken, 1862 (Squamata: Tropiduridae) in northeast ...
Silva, T. L., Almeida, R. P. S., Fernandes, B. F., Chagas, V. H. G., Dias, E. J. R.   +4 more
core   +1 more source

Lizard predation by spiders: A review from the Neotropical and Andean regions

Ecology and Evolution, Volume 10, Issue 20, Page 10953-10964, October 2020., 2020
In this study, we analyze for the first time the lizard consumption by spiders in the Neotropical and Andean regions, showing that the families Ctenidae and Theraphosidae may be relevant lizard predators in these areas. In addition, we provide the first report on spider predation upon a vertebrate taxon in the Andean region.
Claudio Reyes‐Olivares, Andrés Guajardo‐Santibáñez, Bernardo Segura, Nicolás Zañartu, Mario Penna, Antonieta Labra   +5 more
wiley   +1 more source