Results 151 to 160 of about 3,459 (187)

Genetic and morphological evidence of a geographically widespread hybrid zone between two crocodile species, Crocodylus acutus and Crocodylus moreletii

Molecular Ecology, 2016
AbstractHybrid zones represent natural laboratories to study gene flow, divergence and the nature of species boundaries between closely related taxa. We evaluated the level and extent of hybridization betweenCrocodylus moreletiiandCrocodylus acutususing genetic and morphological data on 300 crocodiles from 65 localities.
G. Pacheco-Sierra, Z. Gompert, Jerónimo Domínguez-Laso, E. Vázquez‐Domínguez   +3 more
semanticscholar   +3 more sources

Metals and Metallothioneins in Morelet’s Crocodile (Crocodylus moreletii) from a Transboundary River Between Mexico and Belize

Archives of Environmental Contamination and Toxicology, 2015
The aim of this study was to determine concentrations of heavy metals (cadmium [Cd] and mercury [Hg]) and metallothioneins (MTs) in blood plasma and caudal scutes of Morelet's crocodile (Crocodylus moreletii) from Rio Hondo, a river and natural border between Mexico and Belize.
A. M. Buenfil-Rojas, T. Alvarez-Legorreta, J. R. Cedeño-Vázquez   +2 more
semanticscholar   +3 more sources

Population dynamics of Morelet’s crocodile (Crocodylus moreletii) using data of national monitoring in Mexico

Studies on Neotropical Fauna and Environment, 2023
Morelet’s crocodile populations have limited distribution along the coast of Mexico, Belize, and Guatemala, and have been greatly affected by human activities. Morelet’s crocodile is a species with high ecological and economic value.
A. Villegas, J. J. Flores-Martínez, Sol de Mayo Mejenes-López, Kathleen Ann Babb-Stanley   +3 more
semanticscholar   +1 more source

EVALUATION OF A TRANSLOCATION OF CROCODYLUS MORELETII INDIVIDUALS TO ÁREA DE PROTECCIÓN DE FLORA Y FAUNA YUM BALAM, QUINTANA ROO, MEXICO

The Southwestern naturalist, 2022
We rescued 22 Crocodylus moreletii adult individuals from an area designated to become a theme park in the Riviera Maya tourist corridor in Quintana Roo, Mexico.
Julio César Gutiérrez-Ramírez, M. González-Jáuregui, Benjamín Morales-Vela, J. R. Cedeño-Vázquez   +3 more
semanticscholar   +1 more source

Organochlorine contaminants in Morelet’s crocodile (Crocodylus moreletii) eggs from Belize

Chemosphere, 2000
Non-viable eggs of Morelet's crocodile (Crocodylus moreletii) were collected from Gold Button (GBL) and New River lagoons (NRL) in northern Belize and screened for organochlorine (OC) compounds using gas chromatography (GC) with electron capture detection (ECD). All egg samples from both lagoons (n = 24) tested positive for one or more OCs.
T H, Wu, T R, Rainwater, S G, Platt, S T, McMurry, T A, Anderson   +4 more
openaire   +2 more sources

Hybridization between Crocodylus acutus and Crocodylus moreletii in the Yucatan Peninsula: II. evidence from microsatellites

Journal of Experimental Zoology Part A: Ecological Genetics and Physiology, 2008
AbstractDetecting and quantifying hybridization between endangered or threatened taxa can provide valuable information with regards to conservation and management strategies. Hybridization between members of the genus Crocodylus has been known to occur in captivity and in some wild populations.
David, Rodriguez, José Rogelio, Cedeño-Vázquez, Michael R J, Forstner, Llewellyn D, Densmore   +3 more
openaire   +2 more sources

Organochlorine contaminants in complete clutches of Morelet's crocodile (Crocodylus moreletii) eggs from Belize

Environmental Pollution, 2006
Seven complete clutches of Morelet's crocodile (Crocodylus moreletii) eggs were collected in northern Belize and examined for organochlorine (OC) pesticide residues. The primary OC detected, p,p-DDE, was found in every egg analyzed (n=175). Other OCs detected included p,p-DDT, p,p-DDD, methoxychlor, aldrin, and endosulfan I.
Ted H, Wu, Jaclyn E, Cañas, Thomas R, Rainwater, Steven G, Platt, Scott T, McMurry, Todd A, Anderson   +5 more
openaire   +2 more sources

Population status and conservation of Morelet's crocodile, Crocodylus moreletii, in northern Belize

Biological Conservation, 2000
Spotlight surveys were conducted from 1992 to 1997 to determine the population status of Morelet's crocodile, Crocodylus moreletii, in northern Belize. A total of 754 crocodiles were observed and 481.9 km surveyed (1.55/km). Encounter rates were highest in non-alluvial (8.20/km) and alluvial (6.11/km) lagoons, and considerably lower in most rivers and ...
Steven G. Platt, John B. Thorbjarnarson
openaire   +1 more source

Hybridization betweenCrocodylus acutusandCrocodylus moreletiiin the Yucatan Peninsula: I. evidence from mitochondrial DNA and morphology

Journal of Experimental Zoology Part A: Ecological Genetics and Physiology, 2008
AbstractThe American crocodile (Crocodylus acutus) and the Morelet's crocodile (C. moreletii) are broadly sympatric in Belize and Mexico. The presence of morphologically anomalous individuals in the overlapping range area suggests possible hybridization between these species.
José Rogelio, Cedeño-Vázquez, David, Rodriguez, Sophie, Calmé, James Perran, Ross, Llewellyn D, Densmore, John B, Thorbjarnarson   +5 more
openaire   +2 more sources

Crocodylus moreletii in captivity

2017
This study documents results of the husbandry of Crocodylus moreletii in captivity, in cooperation with the Tiergarten Schönbrunn in Vienna. The first chapter reveals the incubation methods and proves that temperatures above 34°C in the first third of the incubation period will lead to abnormalities and even to the death of crocodile embryos, while ...
openaire   +1 more source