Results 201 to 210 of about 4,111 (235)

Genetic Structure and Loss of Genetic Diversity in the Savannah Side-Necked Turtle Podocnemis vogli (Testudines: Podocnemididae)

Chelonian Conservation and Biology
. The savannah side-necked turtle Podocnemis vogli is a species restricted to the savannas of the Orinoco basin in Colombia and Venezuela. Because of its apparent abundance, it is currently categorized as Least Concern (LC) by the IUCN Red List. However,
Marcela Cárdenas-Barrantes, N. Matta, O. Rodríguez-Fandíño, U. Fritz, Mario Vargas-Ramírez   +4 more
semanticscholar   +1 more source

Riverscape features determining the genetic structure of the Yellow‐Spotted Amazon River Turtle (Podocnemis unifilis) in Brazilian Amazonia

Biotropica
Landscape characteristics can influence gene flow depending on the species ability to disperse. This imposes different levels of resistance to movement, determining the genetic structure and diversity of populations.
Maria Augusta Paes Agostini, A. F. Machado, C. Ritter, Daniely Félix-Silva, J. Pezzuti, P. C. M. Andrade, J. Pantoja-Lima, Maria das Neves da Silva Viana, Luiz Alberto dos Santos Monjeló, Richard C. Vogt, Waldesse Piragé de Oliveira Junior, I. Farias   +11 more
semanticscholar   +1 more source

An Approximation of the Sex Determination Parameters in the Savanna Side-Necked Turtle Podocnemis vogli (Podocnemididae)

Chelonian Conservation and Biology
. With the exception of the savanna side-necked turtle (Podocnemis vogli) and the redheaded river turtle (Podocnemis erythrocephala), the species within the pleurodire genus Podocnemis have been relatively well-characterized in terms of their temperature-
Vivian P. Páez, J. Pérez, F. Parra, Brian C. Bock   +3 more
semanticscholar   +1 more source

Entre o sucesso e o risco: padrões de ninhos e biometria de Podocnemis unifilis, uma espécie introduzida no Rio Paraguai

Cuadernos de Educación y Desarrollo
Investigamos as condições reprodutivas da tartaruga Podocnemis unifilis no alto curso do rio Paraguai, início do Pantanal, onde a espécie foi introduzida.
Alexandre Fernandes Veloso, O. Silva, Tatiane Dias Santana, M. Santos, Letícia Carina Pinheiro Camilo, Dionei José Silva   +5 more
semanticscholar   +1 more source

Physical Characteristics of Giant Amazon Turtle (Podocnemis expansa) Nests

Chelonian Conservation and Biology, 2007
ABSTRACT We determined the relationship between incubation success and physical characteristics of Podocnemis expansa nests on 4 sand beaches of the Araguaia River in the southern Amazon basin, Brazil. Sand samples measuring grain size, humidity, and density were collected during the first 7 days after egg laying.
Kelly Bonach, José F. Lewinger, Álvaro P. da Silva, Luciano M. Verdade   +3 more
openaire   +1 more source

Analysis of the influence of tourism on nesting beaches for the Amazon turtle (Podocnemis expansa) on the Crixás-Açu river

Acta Scientiarum : Biological Sciences
Freshwater turtles play an important ecological and social role, with Podocnemis expansa (arrau turtle) being the largest freshwater Testudine in Latin America. The overexploitation of this species for the meat and egg by-products trade has significantly
L. S. M. Paiva, T. P. Leão, Paulo Ribeiro, L. Silva, Mariana Pastori Lara, Rodrigo Diana Navarro   +5 more
semanticscholar   +1 more source

Nesting of Podocnemis unifilis in the Capanaparo River, Venezuela

Journal of Herpetology, 1993
(Pritchard and Trebbau, 1984). Although still abundant in many lowland riverine habitats in Venezuela, including the Capanaparo River, numbers appear to be declining because the terecay is a principal human food staple during the dry season, with both eggs and turtles being consumed or sold in large quantities throughout the species range (Mittermeier,
John B. Thorbjarnarson, Nayibe Perez, Tibisay Escalona   +2 more
openaire   +1 more source

Carcass yield, meat and fat color of yellow-spotted river turtles (Podocnemis unifilis) fed with Mauritia flexuosa fruit-based supplement

Cuadernos de Educación y Desarrollo
One way to increase the profitability of turtle farming is to provide even more differentiated products, for example, by adding value to the products and making them healthier for consumers. Moreover, M.
Jamile da Costa Araújo, V. Bezerra, E. T. Yoshioka, V. Ramos, L. F. Damasceno, Larissa de Cássia Moreira Coutinho, Eucicleide Barros da Costa   +6 more
semanticscholar   +1 more source

Risk assessment for the consumption of the freshwater turtle Podocnemis unifilis with Hg in an indigenous population living close to mining area in the brazilian Amazon

Revista Internacional de Contaminación Ambiental
Podocnemis unifilis is an important source of protein for indigenous communities in the Brazilian Amazon. However, contaminants associated to the mining activities can be affecting this species and, in turn, its consumers. The objective of this study was
Luciano Vieira Dias da Silva, Simone de Fátima Pinheiro Pereira, Cristiane Costa Carneiro, Ronaldo Magno Rocha, Hemilton Cardoso da Costa, Cleber Silva e Silva, Alan Marcel Fernandes de Souza, Thiago de Melo e Silva   +7 more
semanticscholar   +1 more source

Simple radiography of the coelomic cavity in Podocnemis expansa and Podocnemis unifilis: proposal for an illustrative atlas as a diagnostic tool

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, Leandro Nassar Coutinho, E. Mesquita, Bármela da Silva   +3 more
semanticscholar   +1 more source