Results 171 to 180 of about 1,023 (192)
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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 +3 more
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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 +3 more
openaire +2 more sources
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 +5 more
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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 +5 more
openaire +2 more sources
Population status and conservation of Morelet's crocodile, Crocodylus moreletii, in northern Belize
Biological Conservation, 2000Spotlight 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
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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 +5 more
openaire +2 more sources
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 +5 more
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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.
Gualberto, Pacheco-Sierra +3 more
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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.
Gualberto, Pacheco-Sierra +3 more
openaire +2 more sources
Growth of morelet's crocodile (crocodylus moreletii) during the first three years of life
Zoo Biology, 1995AbstractGrowth of Crocodylus moreletii, an endangered species, was observed under protected conditions in the native range, from hatching through the third year of life. The goal of this project was to provide baseline growth data for eventual comparison with data from specimens reared in thermally controlled zoo facilities.
Gonzalo Pérez‐Higareda +3 more
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Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2006
The purpose of this study was to develop an immunoassay for vitellogenin in Morelet's crocodile (Crocodylus moreletii). Blood was collected from wild-caught crocodiles in Belize. Plasma samples from adult females taken during the breeding season were used for vitellogenin purification and samples from adult males were used for comparison.
Kyle W, Selcer +8 more
openaire +2 more sources
The purpose of this study was to develop an immunoassay for vitellogenin in Morelet's crocodile (Crocodylus moreletii). Blood was collected from wild-caught crocodiles in Belize. Plasma samples from adult females taken during the breeding season were used for vitellogenin purification and samples from adult males were used for comparison.
Kyle W, Selcer +8 more
openaire +2 more sources
Archives of Environmental Contamination and Toxicology, 2014
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 +2 more
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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 +2 more
openaire +2 more sources
The Southwestern Naturalist, 2007
Abstract The consumption of large (>15 kg) mammals by Morelet's crocodile (Crocodylus moreletii) is poorly documented. We present field observations of necrophagy and interspecific kleptoparasitism (defined as the stealing of food from an individual by another individual) involving the consumption of domestic cattle (Bos taurus) and Baird's tapir ...
Steven G. Platt +5 more
openaire +1 more source
Abstract The consumption of large (>15 kg) mammals by Morelet's crocodile (Crocodylus moreletii) is poorly documented. We present field observations of necrophagy and interspecific kleptoparasitism (defined as the stealing of food from an individual by another individual) involving the consumption of domestic cattle (Bos taurus) and Baird's tapir ...
Steven G. Platt +5 more
openaire +1 more source
Growth Pattern of Farmed Morelet's Crocodiles (Crocodylus moreletii) from Hatchlings to Juveniles
South American Journal of Herpetology, 2022Sergio Viveros-Peredo +3 more
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