Results 181 to 190 of about 1,866 (199)

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

NESTS CHARACTERIZATION AND SEXUAL IDENTIFICATION OF PODOCNEMIS EXPANSA, AMAZON TURTLE

2022
As alterações climáticas e os impactos que o planeta vem sofrendo com as ações humanas, tornam os monitoramentos ecológicos e da biodiversidade imprescindíveis. Estudos sobre determinação sexual dependente da temperatura de incubação dos ovos, em quelônios, apresentam vários desafios, sendo um deles relacionado à identificação sexual dos filhotes.
Gonçalves Kagueiama, Ana Karla, Malvasio, Adriana, Campos de Sousa, Heitor, de Jesus Castro, Fábio, Gomes de Ataídes, Adson, Leandro da Silva, Roberto   +5 more
openaire   +1 more source

Haematological values of post-laying Arrau turtle (Podocnemis expansa) in the Orinoco River, Venezuela

Research in Veterinary Science, 2012
The Arrau turtle (Podocnemis expansa) is an endangered species, as a result of long-lasting, unsustainable exploitation. To obtain reference haematological values from the wild Podocnemis expansa during post-laying, 20 turtles were captured in the Orinoco River. Blood was obtained from the dorsal cervical sinus in lithium heparin tubes. Red blood cells
M, Rossini, P A, Blanco, E, Marín, S, Comerma-Steffensen, H, Zerpa   +4 more
openaire   +2 more sources

Chondrogenesis of the limbs and mesopodial ossification of Podocnemis expansa Schweigger, 1812 (Testudines: Podocnemidae)

Journal of Morphology, 2011
AbstractWe address the chondrogenic formation of the limbs and the mesopodial ossification pattern of the Pleurodira Podocnemis expansa, to resolve the homology of these elements as well as the pattern of connection of the autopodial elements and the origin of the digital arch. Embryos and juveniles of P.
Lucélia Gonçalves, Vieira, André L Q, Santos, Fabiano Campos, Lima, Lea Resende, Moura   +3 more
openaire   +2 more sources

Temperature-Dependent Sex Determination in Podocnemis expansa (Testudinata: Pelomedusidae)

Biotropica, 1985
Cleber J. R. Alho, Tania M. S. Danni, Luiz F. M. Padua   +2 more
openaire   +1 more source

Biodiversity Record: A giant Amazon river turtle, Podocnemis expansa, at Punggol

Nature in Singapore, 17, 1 ...
openaire   +1 more source

Developmental heart morphology in the Amazon turtle Podocnemis expansa (Testudines: Podocnemidae)

Zoomorphology, 2023
Emanuel Lucas Bezerra Rocha, Marcela dos Santos Magalhães, Layla Ianca Queiroz Rocha, Vilessa Lílian de Araújo Gomes, Zacarias Jacinto de Souza Junior, Luã Barbalho de Macêdo, Janine Karla França da Silva Braz, Moacir Franco de Oliveira, Carlos Eduardo Bezerra de Moura   +8 more
openaire   +1 more source

Effects of Human Settlements on Abundance of Podocnemis unifilis and P. expansa Turtles in Northeastern Bolivia

Chelonian Conservation and Biology, 2007
Kristen Conway-Gómez
exaly  

A trophic study of the sympatric Amazonian freshwater turtles Podocnemis unifilis and Podocnemis expansa (Testudines, Podocnemidae) using carbon and nitrogen stable isotope analyses

Canadian Journal of Zoology, 2012
Plinio Barbosa de Camargo
exaly  

Multiple paternity in side-neck turtles Podocnemis expansa: evidence from microsatellite DNA data

Molecular Ecology, 2000
Nicole Valenzuela
exaly