Results 21 to 30 of about 722 (199)

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

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

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

open access: yesJ 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

The velar chord and dynamic integration of the gular valve in crocodylians. [PDF]

open access: yesAnat Rec (Hoboken)
Crocodilians have a unique gular valve that forms a seal between the oral cavity and the pharynx. The gular valve has traditionally been treated as two parts: a mobile ventral flap associated with the tongue and a fixed dorsal velum palatini. This work describes a connective tissue band, the velar chord, which functionally integrates the two parts of ...
Young BA, Cramberg M, Young OG.
europepmc   +2 more sources

Enfermedades en caimanes del Orinoco (Crocodylus intermedius) y caimanes de la costa (Crocodylus acutus) mantenidos en zoocriaderos venezolanos

open access: yesRevista Científica, 2010
El caimán del Orinoco Crocodylus intermedius habitaba en la cuenca del Río Orinoco de Venezuela y Colombia, el caimán de la costa Crocodylus acutus a lo largo de la costa, lagos, lagunas y ríos afluentes del Mar Caribe.
Ernesto Otto Boede, Elías Sogbe
doaj   +1 more source

Integrating molecular, phenotypic and environmental data to elucidate patterns of crocodile hybridization in Belize [PDF]

open access: yesRoyal Society Open Science, 2015
The genus Crocodylus comprises 12 currently recognized species, many of which can be difficult to differentiate phenotypically. Interspecific hybridization among crocodiles is known to occur in captivity and has been documented between some species in ...
Evon R. Hekkala   +7 more
doaj   +1 more source

Cave-dwelling crocodiles of Central Belize

open access: yesInternational Journal of Speleology, 2023
We provide the results on the first systematic effort to study cave-dwelling crocodiles in central Belize. For nearly three decades, managers at Runaway Creek Nature Reserve have frequently observed crocodile tracks and trackways in caves, while ...
Jut Wynne   +9 more
doaj   +1 more source

Ancestral Hybridization Yields Evolutionary Distinct Hybrids Lineages and Species Boundaries in Crocodiles, Posing Unique Conservation Conundrums

open access: yesFrontiers in Ecology and Evolution, 2018
Interspecific hybridization can lead to adaptation and speciation, especially in the context of recent radiations. The emblematic Crocodylus (true crocodiles) is the most broadly distributed, ecologically diverse, and species-rich crocodylian genus ...
Gualberto Pacheco-Sierra   +6 more
doaj   +1 more source

The American Crocodile: An Indicator Species for Everglades Restoration

open access: yesEDIS, 2016
The American crocodile (Crocodylus acutus) is a top predator that lives along the southern tip of peninsular Florida, inhabiting saltwater, brackish water, or freshwater near coastal areas in mangrove-lined ponds, creeks, coves, man-made ponds, and ...
Rebecca G. Harvey   +4 more
doaj   +5 more sources

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