Results 31 to 40 of about 1,990 (190)

First record of predation on Rhinella diptycha (Anura, Bufonidae) by Caiman latirostris (Crocodylia, Alligatoridae)

Actualidades Biológicas, 2020
Caimans of the species Caiman latirostris, which are widely distributed in South America, are opportunistic predators. They show ontogenetic variation in diet, with young individuals initially feeding on invertebrates and then gradually adding ...
Rodney Murillo Peixoto-Couto, Maiara Cabrera-Miguel, Zaida Ortega   +2 more
doaj   +1 more source

Trifold origin of the reptilian ear ossicle and its relation to the evolutionary modification of the temporal skull region. [PDF]

J Anat
The columella‐complex in reptile middle ears involves the footplate, columella shaft, and extracolumella. The latter is partly of quadrate developmental origin, whereas the footplate derives from the mesodermal otic capsule, the shaft and another part of the extracolumella from the hyoid arch.
Werneburg I, Bronzati M.
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

Distribution of populations of broad-snouted caiman (Caiman latirostris, Daudin 1802, Alligatoridae) in the São Francisco River basin, Brazil Distribuição das populações de jacaré-do-papo-amarelo (Caiman latirostris, Daudin 1802, Alligatoridae) na bacia do Rio São Francisco, Brasil

Brazilian Journal of Biology, 2010
We surveyed populations of the broad-snouted caiman, Caiman latirostris, throughout the São Francisco River basin, from Três Marias reservoir, State of Minas Gerais, to the river delta, at the boarder of Sergipe and Alagoas states.
R. Filogonio, VB. Assis, LF. Passos, ME. Coutinho   +3 more
doaj   +1 more source

Winter survivorship of hatchling broad-snouted caimans (Caiman latirostris) in Argentina

Ethnobiology and Conservation, 2022
The first life stage of crocodilians is considered the most critical in terms of survival, particularly in regions that have well-defined cold seasons. To estimate this parameter for hatchling broad-snouted caimans, Class I (CI = snout-vent length < 25 cm), we released 36 caimans (18 in 2018, and 18 in 2019) born in captivity that were equipped ...
Evangelina V Viotto, Melina Soledad Simoncini, Luciano M Verdade, Joaquin L Navarro, Carlos Piña   +4 more
openaire   +2 more sources

Macrogeographic genetic variation in broad‐snouted caiman (Caiman latirostris)

Journal of Experimental Zoology Part A: Ecological Genetics and Physiology, 2008
AbstractBroad‐snouted caiman's (Caiman latirostris) geographic distribution comprises one of the widest latitudinal ranges among all crocodilians. In this study we analyzed the relationship between geographic distance (along the species latitudinal range) and genetic differentiation using DNA microsatellite loci developed for C.
Schmidt Villela, Priscilla Marqui, Coutinho, Luiz Lehmann, Piña, Carlos Ignacio, Verdade, Luciano Martins   +3 more
openaire   +3 more sources

Widespread latitudinal asymmetry in the performance of marginal populations: A meta‐analysis

Global Ecology and Biogeography, Volume 32, Issue 6, Page 842-854, June 2023., 2023
Abstract Aim Range shifts are expected to occur when populations at one range margin perform better than those at the other margin, yet no global trend in population performances at range margins has been demonstrated empirically across a wide range of taxa and biomes.
Fernando Pulido, Bastien Castagneyrol, Francisco Rodríguez‐Sánchez, Yónatan Cáceres, Adara Pardo, Eva Moracho, Johannes Kollmann, Fernando Valladares, Johan Ehrlén, Alistair S. Jump, Jens‐Christian Svenning, Arndt Hampe   +11 more
wiley   +1 more source

Nest-sharing behavior of captive Broad-snouted caimans (Caiman latirostris): cooperation or exploitation?

Amphibia-Reptilia, 2022
Abstract Communal egg-laying is not frequently observed in crocodilians that exhibit nest attendance. However, it has been reported for both wild and captive Caiman latirostris. To understand the proximate causes of communal nesting, we aim to describe the nesting behavior of caimans during communal egg-laying in a captive population.
Sofía Evelyn Pierini, Alba Imhof, Alejandro Larriera, Melina Soledad Simoncini, Guillermo Príncipe, Carlos Ignacio Piña   +5 more
openaire   +3 more sources

Bone histology of Broad-snouted Caiman Caiman latirostris (Crocodylia: Alligatoridae) as tool for morphophysiological inferences in Crocodylia

Acta Herpetologica, 2021
Bone histology is an important tool for the interpretation of life patterns in animals of the past and extant fauna. The crocodylians have been studied as important inferential models for morphophysiological characteristics.
Paulo Mascarenhas-Junior, Luis Antonio Bassetti, Juliana Manso Sayão   +2 more
doaj   +1 more source

Contractile function of fasting and digesting broad-snouted caiman (Caiman latirostris)

Canadian Journal of Zoology, 2023
Feeding regimes are a critical process to ensure survival and reproduction, which modulate several behavioral and physiological patterns of ectotherms, especially cardiovascular adjustments. However, crocodilian myocardial contractile function after food intake remains understudied.
André Guelli Lopes, Diana Amaral Monteiro, Eliton da Silva Vasconcelos, Ana Lúcia Kalinin   +3 more
openaire   +1 more source