Results 21 to 30 of about 2,219 (213)

Clutch size of Caiman latirostris (Crocodylia: Alligatoridae) varies on a latitudinal gradient [PDF]

, 2009
The distribution of the Broad-Snouted Caiman (Caiman latirostris) ranges from 5°S to 32°S. Thus, caiman populations are exposed to different climatic conditions, and this latitudinal gradient could affect aspects of their reproduction.
Piña, Carlos Ignacio, Simoncini, Melina Soledad, Siroski, Pablo Ariel   +2 more
core   +2 more sources

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

J 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, Perrichon G, Hautier L, Rinder N, Amiot R, Raselli I, Adrien J, Lachambre J, Fernandez V, Martin JE.   +9 more
europepmc   +2 more sources

Cloacal mycobiota in wild females of Caiman latirostris (Crocodylia: Alligatoridae)

Revista Mexicana de Biodiversidad, 2013
There are few reports of cloacal mycobiota on wild reptiles, and in particular, fungal presence and functionin Caiman latirostris remains unknown. Our objective was to describe the fungal community present in the cloaca ofwild female broad-snouted caimans during their reproductive season determine whether the number of fungi has somerelationship with ...
Noelia Betiana Nuñez Otaño, Carlos Ignacio Piña, Thiago Portelinha, Angelica Margarita Arambarri   +3 more
doaj   +4 more sources

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

Ecol 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, Dwyer RG, Parsons S, Potvin DA.   +3 more
europepmc   +2 more sources

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

Ecol 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, Santiago DH, Solé M, Lourenço-de-Moraes R.   +3 more
europepmc   +2 more sources

Clustering crocodylian dental morphology: Insights into functional adaptations, diet, and ontogeny. [PDF]

J Anat
Extant crocodylians may be divided into five clusters based on the residuals of four linear dental measurements (y‐axes) and their variation along the jaw (x‐axes). These clusters correlate to snout shape, prey preference, and feeding ecology, particularly prey size and the degree of processing necessary. Multiple families and subfamilies were found in
Testin JJ, D'Amore DC.
europepmc   +2 more sources

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

Check 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., Carlos Cintra, Hélder Silva, Marcio Costa, Claudiano Souza, Antônio Pachêco Jr., Fernanda Gonçalves   +6 more
doaj   +5 more sources

Morphological and Ontogenetic Skin Color Changes in the American Alligator (Alligator mississippiensis)

Animals, 2023
To assess skin color change in alligators, we maintained animals in differently lighted environments and also measured skin colors in an ontogenetic series of wild animals. Juvenile alligators maintained in black enclosures exhibited a gradual lightening
Cadre Francis, Amber Hale, Jennifer Berken, Ted Joanen, Mark Merchant   +4 more
doaj   +1 more source

Selection and trans-species polymorphism of major histocompatibility complex class II genes in the order Crocodylia. [PDF]

PLoS ONE, 2014
Major Histocompatibility Complex (MHC) class II genes encode for molecules that aid in the presentation of antigens to helper T cells. MHC characterisation within and between major vertebrate taxa has shed light on the evolutionary mechanisms shaping the
Weerachai Jaratlerdsiri, Sally R Isberg, Damien P Higgins, Lee G Miles, Jaime Gongora   +4 more
doaj   +1 more source

The pseudosuchian record in paleohistology: A small review. [PDF]

Anat Rec (Hoboken)
Abstract Archosauria originated around the Earth's largest biotic crisis that severely affected all ecosystems globally, the Permotriassic Mass extinction event, and comprises two crown‐group lineages: the bird‐lineage and the crocodylian lineage. The bird lineage includes the iconic pterosaurs, as well as dinosaurs and birds, whereas the crocodylian ...
Scheyer TM.
europepmc   +2 more sources