Results 61 to 70 of about 269 (143)

Avaliação de padrão irregular dos escudos do casco em Podocnemis expansa e Podocnemis unifilis (Testudines, Podocnemididae) Evaluation of irregular pattern of the shell scutes in Podocnemis expansa and Podocnemis unifilis (Testudines, Podocnemididae)

Acta Amazonica, 2009
O casco de Podocnemis expansa (tartaruga-da-amazônia) e Podocnemis unifilis (tracajá), os maiores quelônios de água doce da América do Sul, é uma estrutura única que diferencia esse grupo dos vertebrados atuais e está associado a alguns padrões ...
Giovanni Salera-Junior, Adriana Malvasio, Thiago Costa Gonçalves Portelinha   +2 more
doaj   +1 more source

Evidence of multiple paternal contribution in Podocnemis sextuberculata (Testudines: Podocnemididae) detected by microsatellite markers.

Phyllomedusa: Journal of Herpetology, 2015
Evidence of multiple paternity in Podocnemis sextuberculata (Testudines: Podocnemididae) detected by microsatellite markers. We found evidence of multiple paternity in a sample of 12 Podocnemis sextuberculata nests including seven nests (80 hatchlings ...
Cleiton Fantin, Dorothy Ivila Melo Pereira, Jorge Frank Ferreira, Paulo Cesar Andrade Machado, Tomas Hrbek, Luiz Alberto Santos Monjeló, Izeni Pires Farias   +6 more
doaj  

Morphological aspects of the liver of the Podocnemis expansa (Testudines, podocnemididae)

, 2014
The liver of P. expansa was characterized morphohistologically. To this end, twenty livers from clinically healthy male and female Podocnemis expansa, weighing from 2.0 to 4,5 kg, supplied by the commercial breeder Fazenda Moenda da Serra, in Araguapaz, state of Goiás, Brazil, were analyzed macro-and microscopically.
Moura, L. R., Santos, A. L Q, Beletti, M. E., Vieira, L. G., Orpinelli, S. R., Alves Júnior, J. R.   +5 more
openaire   +1 more source

Avaliação da predação de Podocnemis expansa e Podocnemis unifilis (Testudines, Podocnemididae) no rio Javaés, Tocantins Evaluation of predation in Podocnemis expansa and Podocnemis unifilis (Testudines, Podocnemididae) in the Javaés River, Tocantins

Acta Amazonica, 2009
Podocnemis expansa e P. unifilis são animais de vida longa, com uma demorada maturação sexual, o que influencia uma baixa taxa de substituição de indivíduos.
Giovanni Salera Junior, Adriana Malvasio, Thiago Costa Gonçalves Portelinha   +2 more
doaj   +1 more source

Population structure, sex ratio and abundance of Podocnemis sextuberculata (Testudines, Podocnemididae) in the Reserva de Desenvolvimento Sustentável Mamirauá, Amazonas, Brazil

Phyllomedusa: Journal of Herpetology, 2003
Population structure, sex ratio and abundance of Podocnemis sextuberculata (Testudines, Podocnemididae) in the Reserva de Desenvolvimento Sustentável Mamirauá, Amazonas, Brazil.
Augusto Fachín-Terán, Richard C. Vogt, John B. Thorbjarnarson   +2 more
doaj  

Pivotal temperature and sexual dimorphism of Podocnemis expansa hatchlings (Testudines: Podocnemididae) from Bananal Island, Brazil

Zoologia (Curitiba), 2009
A common problem when trying to identify the sex of hatchling turtles is that juveniles are not obviously externally dimorphic and current techniques to identify sex are often invasive.
Adélio Lubiana, Paulo Dias Ferreira Júnior   +1 more
doaj   +1 more source

A new species of Orientatractis (Nematoda: Cosmocercoidea: Atractidae) parasite of Yellow-Spotted Amazon River Turtle, Podocnemis unifilis Troschel, 1848 (Testudines: Podocnemididae) in Brazilian Amazon. [PDF]

Int J Parasitol Parasites Wildl, 2023
Jesus RF, Oliveira SCG, Ramos IMC, Melo FTV.   +3 more
europepmc   +1 more source

Description of behavioral patterns of Podocnemis erythrocephala (Spix, 1824) (Testudines: Podocnemididae) (Red-headed river turtle) in captivity, Manaus, Amazonas, Brazil Descrição de padrões comportamentais de Podocnemis erythrocephala (Spix, 1824) (Testudines: Podocnemididae) (Irapuca) em cativeiro, Manaus, Amazonas, Brasil

Acta Amazonica, 2010
The biology and ecology of South American turtles is still poorly known, particularly, for the Brazilian species. Laboratory studies are essential to understand the life cycles of aquatic turtles species and to help in formulating management plans for ...
Larissa Schineider, Camila Ferrara, Richard C Vogt   +2 more
doaj   +1 more source

Anthropogenic impacts on yellow-spotted river turtle Podocnemis unifilis (Reptilia: Podocnemididae) from the Brazilian Amazon

Acta Biológica Colombiana, 2016
We investigated the influence of anthropogenic impacts on Podocnemis unifilis nesting on a stretch from Falsino river, with two forest reserves, and one urban area on the Araguari river, state of Amapá, eastern Amazon (Brazil).
Débora Regina Santos Arraes, Helenilza Ferreira Albuquerque Cunha, Marcos Tavares-Dias   +2 more
doaj   +1 more source

Estrutura populacional, razão sexual e abundância de Podocnemis sextuberculata (Testudines, Podocnemididae) na Reserva de Desenvolvimento Sustentável Mamirauá, Amazonas, Brasil [PDF]

Phyllomedusa: Journal of Herpetology, 2003
We studied turtles in the focal area of the Reserva de Desenvolvimento Sustentável Mamirauá from September 1996 through August 1998. The reserve is located in the western part of the Brazilian Amazon, between the Japurá, Solimões, and Auti-Paraná rivers,
Augusto Fachín-Terán, Richard C. Vogt, John B. Thorbjarnarson   +2 more
doaj