Results 31 to 40 of about 1,036 (219)

Evolution of ancient satellite DNAs in extant alligators and caimans (Crocodylia, Reptilia) [PDF]

open access: yesBMC Biology
Background Crocodilians are one of the oldest extant vertebrate lineages, exhibiting a combination of evolutionary success and morphological resilience that has persisted throughout the history of life on Earth.
Vanessa C. Sales-Oliveira   +10 more
doaj   +2 more sources

Geographic distribution and conservation status of Caiman latirostris (Crocodylia, Alligatoridae) in Uruguay [PDF]

open access: yesPhyllomedusa: Journal of Herpetology, 2006
Populations of Caiman latirostris are known to occur in Uruguay but their geographic distribution remains uncertain. This work presents anupdate of the species distribution and conservation status in Uruguay.
Claudio Borteiro   +5 more
doaj   +5 more sources

Predation attempts on large Rhinella toads (Bufonidae) by Paleosuchus caimans (Alligatoridae) in artificial ponds

open access: yesActa Biológica Colombiana
Predation on bufonid toads can be perilous due to the presence of paratoid glands, which can poison and even lead to the death of the predator. Some crocodilians avoid contact with the toad’s poison or are probably tolerant to the venom of the toad ...
Murielly A. Coimbra   +5 more
doaj   +2 more sources

Evaluation of factors associated with predation on Caiman latirostris nests (Crocodylia: Alligatoridae) in Argentina

open access: yesPhyllomedusa: Journal of Herpetology, 2016
Predation is a major cause of crocodilian egg loss. However, at present, the mechanisms by which predators detect nests is unknown. Previous studies have reported that predators are able to detect prey using both visual and olfactory cues.
Melina Soledad Simoncini   +3 more
doaj   +4 more sources

Size, not phylogeny, explains the morphology of the endosseous labyrinth in the crown clade Crocodylia. [PDF]

open access: yesJ Anat
Here, we present the most complete dataset to date on the endosseous labyrinths of extant crocodylians. Using 3D geometric morphometrics, we show that allometry constitutes a major contributor of the shape variation of the crocodylian endosseous labyrinths and that the development of this structure is likely linked to the braincase conformation, in all
Pochat-Cottilloux Y   +9 more
europepmc   +2 more sources

Vocal patterns of adult females and juveniles Caiman yacare (Crocodilia: Alligatoridae) in Brazilian Pantanal wetland

open access: yesRevista de Biología Tropical, 2013
The Paraguayan caiman (Caiman yacare) is the main Caimaninae species occurring in the Brazilian Pantanal Wetland. Despite the relative availability of works focused on biology and conservation of the Paraguayan caiman, almost nothing is known about its ...
Fernando L. Sicuro   +3 more
doaj   +1 more source

SOBRE UN HIBRIDO INTER-ESPECIFICO DEL GENERO PALEOSUCHUS (CROCODYLIA. ALLIGATORIDAE)

open access: yesRevista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales
Se conocen híbridos inter - subespecíficos en Testudines (tortugas), interespecífico en Testudinata, Sauria (lagartos) y Serpentes (serpientes), y aun dos casos de hibridación inter-genérica en Serpentes (Mertens, 1950, 1956, 1964, 1968). El mismo autor recomienda (1950, p. 128; 1956, p. 383; 1964, p. 34; y 1968, p.
Federico Medem
openaire   +2 more sources

Roars, Rumbles, and Resonance: A Systematic Review and Meta-Analysis of Crocodylian Acoustic Signals. [PDF]

open access: yesEcol Evol
Crocodylians are highly vocal reptiles, possessing a complex acoustic signalling system including vocal and non‐vocal signals used for courtship, mating, mediating conflict, and providing maternal care. Despite this, research on crocodylian acoustic signalling remains infrequent, with methodologies and terminology varying widely across studies.
Flores SA   +3 more
europepmc   +2 more sources

Herpetofauna, Ponte de Pedra Hydroelectric Power Plant, states of Mato Grosso and Mato Grosso do Sul, Brazil [PDF]

open access: yesCheck List, 2009
This paper presents a check list of amphibians and reptiles of the area under influence of Ponte de Pedra hydroelectric power plant on Correntes River (municipality of Sonora), between the Brazilian states of Mato Grosso do Sul and Mato Grosso.
Nelson da Silva Jr.   +6 more
doaj   +5 more sources

Amphibians and Reptiles Exhibit Different Ecological and Evolutionary Spatial Patterns in the Amazon Basin. [PDF]

open access: yesEcol Evol
This study investigates the spatial variability of ecological and evolutionary patterns in amphibian and reptile lineages within the Amazon Basin. Our findings highlight distinct diversity patterns across lineages and ecoregions. ABSTRACT Understanding spatial variability in ecological and evolutionary patterns is key to Amazonian biodiversity ...
López-Rojas JJ   +3 more
europepmc   +2 more sources

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