Results 191 to 200 of about 4,340 (218)
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Neotropical Hydrobiology and Aquatic Conservation
The South American river turtle or tataruga (Podocnemis expansa), distributed throughout the Amazon basin, is one of the largest turtle species in the world. It faces several threats that could put its populations at risk.
Reinaldo Cholima +3 more
semanticscholar +1 more source
The South American river turtle or tataruga (Podocnemis expansa), distributed throughout the Amazon basin, is one of the largest turtle species in the world. It faces several threats that could put its populations at risk.
Reinaldo Cholima +3 more
semanticscholar +1 more source
South American Journal of Herpetology, 2007
Abstract This work analyses the influence that nest site characteristics have over natural incubation in freshwater turtles Podocnemis expansa and Podocnemis unifilis. Results indicate that neither carapace size nor weight of P. expansa hatchlings depends on environmental characteristics.
Paulo D. Ferreira Júnior +2 more
openaire +1 more source
Abstract This work analyses the influence that nest site characteristics have over natural incubation in freshwater turtles Podocnemis expansa and Podocnemis unifilis. Results indicate that neither carapace size nor weight of P. expansa hatchlings depends on environmental characteristics.
Paulo D. Ferreira Júnior +2 more
openaire +1 more source
Veterinary clinical pathology, 2020
BACKGROUND Turtles are a major source of protein for riverside human populations in Brazil. The encouragement of commercial breeding meets conservation efforts for these animals, and it is, therefore, crucial to understand the physiologic and behavioral ...
F. Camargo +5 more
semanticscholar +1 more source
BACKGROUND Turtles are a major source of protein for riverside human populations in Brazil. The encouragement of commercial breeding meets conservation efforts for these animals, and it is, therefore, crucial to understand the physiologic and behavioral ...
F. Camargo +5 more
semanticscholar +1 more source
Chelonian Conservation and Biology, 2006
ABSTRACT Subsurface temperature variation suggests that the thermal environment of giant Amazon river turtle (Podocnemis expansa) nests is influenced by the proximity of the water table and by the nest depth. The difference between vertical temperature gradients along fluvial beaches indicates that nest placement can exert a significant influence on ...
Paulo Dias Ferreira Júnior +1 more
openaire +1 more source
ABSTRACT Subsurface temperature variation suggests that the thermal environment of giant Amazon river turtle (Podocnemis expansa) nests is influenced by the proximity of the water table and by the nest depth. The difference between vertical temperature gradients along fluvial beaches indicates that nest placement can exert a significant influence on ...
Paulo Dias Ferreira Júnior +1 more
openaire +1 more source
Brazil'sPodocnemis expansaConservation Program: Retrospective and Future Directions
Chelonian Conservation and Biology, 2014Abstract Between 1975 and 2004 the giant South American river turtle (Podocnemis expansa) as well as Podocnemis unifilis and Podocnemis sextuberculata had part of their nesting beaches protected. This resulted in the release of approximately 46 million hatchlings and the apparent recovery of these species in some areas; however, this ranching program ...
Vitor Hugo Cantarelli +2 more
openaire +1 more source
Brazilian Journal of Animal and Environmental Research
Testudines are among the most popular reptiles chosen as exotic pets and, as a result, are referred more frequently for veterinary evaluation. However, it is difficult to investigate pathologies in these individuals due to their body conformation, which ...
J. V. Portela +3 more
semanticscholar +1 more source
Testudines are among the most popular reptiles chosen as exotic pets and, as a result, are referred more frequently for veterinary evaluation. However, it is difficult to investigate pathologies in these individuals due to their body conformation, which ...
J. V. Portela +3 more
semanticscholar +1 more source
Conservation Genetics Resources, 2017
The Arrau River turtle (Podocnemis expansa) is one of the largest side-neck turtles which listed as an endangered species in IUCN red list. In this study, the complete mitochondrial genome of P. expansa was determined by the sequencing of PCR fragments. The complete mitochondrial genome of P.
Kangyu Wang +4 more
openaire +1 more source
The Arrau River turtle (Podocnemis expansa) is one of the largest side-neck turtles which listed as an endangered species in IUCN red list. In this study, the complete mitochondrial genome of P. expansa was determined by the sequencing of PCR fragments. The complete mitochondrial genome of P.
Kangyu Wang +4 more
openaire +1 more source
Ecotoxicology, 2016
The use of pesticides is a widely spread practice in Brazilian agriculture, and dispersion of these substances is an important factor for the fauna and flora. Atrazine is an endocrine disruptor in the xenoestrogen class that is used worldwide in agricultural practices. In Brazil, its use is permitted in several crops.
Juliana dos Santos, Mendonça +5 more
openaire +2 more sources
The use of pesticides is a widely spread practice in Brazilian agriculture, and dispersion of these substances is an important factor for the fauna and flora. Atrazine is an endocrine disruptor in the xenoestrogen class that is used worldwide in agricultural practices. In Brazil, its use is permitted in several crops.
Juliana dos Santos, Mendonça +5 more
openaire +2 more sources
Journal of zoo and wildlife medicine, 2019
Giant South American turtles (Podocnemis expansa) are at a risk of extinction because of the rapid decline in their population over the last few decades.
Géssica Araújo +5 more
semanticscholar +1 more source
Giant South American turtles (Podocnemis expansa) are at a risk of extinction because of the rapid decline in their population over the last few decades.
Géssica Araújo +5 more
semanticscholar +1 more source
Journal of Zoo and Wildlife Medicine, 2010
Fertile eggs of Podocnemis expansa and Podocnemis unifilis were investigated for the presence of enterobacteria, as these two endangered species have the potential for conservation measures that include egg transfer. Knowledge of normal microflora associated with turtles and turtle eggs would help effectively manage the transfer of these eggs among ...
Paula Benevides, de Morais +4 more
openaire +2 more sources
Fertile eggs of Podocnemis expansa and Podocnemis unifilis were investigated for the presence of enterobacteria, as these two endangered species have the potential for conservation measures that include egg transfer. Knowledge of normal microflora associated with turtles and turtle eggs would help effectively manage the transfer of these eggs among ...
Paula Benevides, de Morais +4 more
openaire +2 more sources