Results 21 to 30 of about 6,741 (260)

Isotope incorporation in broad-snouted caimans (crocodilians)

open access: yesBiology Open, 2013
Summary The trophic ecology and migration of vertebrate species have been increasingly studied using stable isotope analysis. However, this approach requires knowledge on how dietary isotopic values are reflected in consumers' tissues.
Stephane Caut
doaj   +2 more sources

Science and conservation of Amazonian crocodilians: a historical review

open access: yesAquatic conservation, 2021
Crocodilians represent one of the oldest extant vertebrate lineages. They have co‐existed with humans throughout the Amazon basin for thousands of years, often having a strong cultural and economic influence on people's lives.
Boris Marioni   +7 more
semanticscholar   +1 more source

Ventricular Septation and Outflow Tract Development in Crocodilians Result in Two Aortas with Bicuspid Semilunar Valves

open access: yesJournal of Cardiovascular Development and Disease, 2021
Background: The outflow tract of crocodilians resembles that of birds and mammals as ventricular septation is complete. The arterial anatomy, however, presents with a pulmonary trunk originating from the right ventricular cavum, and two aortas ...
R. Poelmann   +5 more
semanticscholar   +1 more source

Phylogenetic and spatial distribution of evolutionary diversification, isolation, and threat in turtles and crocodilians (non-avian archosauromorphs)

open access: yesBMC Evolutionary Biology, 2020
Background The origin of turtles and crocodiles and their easily recognized body forms dates to the Triassic and Jurassic. Despite their long-term success, extant species diversity is low, and endangerment is extremely high compared to other terrestrial ...
T. Colston   +4 more
semanticscholar   +1 more source

Factors influencing the occurrence of negative interactions between people and crocodilians in Mexico

open access: yesOryx, 2021
Negative interactions between people and crocodilians have increased worldwide, but in Mexico there have been few systematic reports and no rigorous evaluation of this problem.
G. A. González-Desales   +6 more
semanticscholar   +1 more source

Welfare of Farmed Crocodilians: Identification of Potential Animal-Based Measures Using Elicitation of Expert Opinion

open access: yesAnimals, 2021
Simple Summary This study focuses on an elicitation of expert opinion to identify a toolbox of animal-based measures that can be used to assess the welfare of farmed crocodilians.
L. Hewitt, A. Small
semanticscholar   +1 more source

Pancuronium Bromide for Chemical Immobilization of Adult Nile Crocodiles (Crocodylus niloticus): A Field Study

open access: yesAnimals, 2023
(1) Background: Pancuronium bromide is a neuromuscular blocker used for immobilizing crocodiles that can be reversed with neostigmine. A recommended drug dose has only been established for saltwater crocodiles (Crocodylus porosus), mostly based on trials
Lionel Schilliger   +6 more
doaj   +1 more source

Can Xenobiotics Alter the Sex Ratio of Crocodilians in the Wild?

open access: yesSexual Development, 2021
All crocodilians exhibit temperature-dependent sex determination without sex chromosomes. This temperature dependency can be overridden by exposure to estrogen via estrogen receptor 1.
S. Kohno
semanticscholar   +1 more source

The evolution of crocodilian nesting ecology and behavior

open access: yesEcology and Evolution, 2020
Crocodilians comprise an ancient and successful lineage of archosaurs that repeatedly raises questions on how they survived a mass extinction and remained relatively unchanged for ~100 million years.
Christopher M. Murray   +2 more
doaj   +1 more source

Blood cell morphology and leukocyte differential of Morelet’s crocodile (Crocodylus moreletii) (Crocodylidae)

open access: yesActa Biológica Colombiana, 2021
The objective of the study was to determine the morphological characteristics of peripheral blood cells (erythrocytes, leukocytes, thrombocytes) and the leukocyte differential count (heterophils, eosinophils, basophils, lymphocytes, monocytes ...
Adrián Gutiérrez-Cervantes   +3 more
doaj   +1 more source

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