Results 31 to 40 of about 286 (141)

Mercury concentration in different tissues of Podocnemis unifilis (Troschel, 1848) (Podocnemididae: Testudines) from the lower Xingu River – Amazonian, Brazil [PDF]

Brazilian Journal of Biology, 2015
Studies using chelonians as biosentinels of environment quality or health risks associated with turtle consumption are very rare, especially in the Amazon basin. This study aims to measure Mercury levels (Hg) in muscle, liver, fat and blood of Podocnemis
J. Souza-Araujo, T. Giarrizzo, MO. Lima
doaj   +3 more sources

New records of digeneans from Podocnemis spp. (Testudines, Podocnemididae) from Iquitos, Peru

Revista Peruana de Biología, 2011
We obtained 8 digestive tract of the turtle Podocnemis expansa and 18 of P. unifilis from the Belen market (Iquitos, Peru). Only digeneans were studied and identified.
Manuel Tantaleán, Nofre Sánchez, Oscar Pineda Catalan   +2 more
doaj   +1 more source

Geological control of Podocnemis expansa and Podocnemis unifilis nesting areas in Rio Javaés, Bananal Island, Brazil Controle geológico das áreas de nidificação de Podocnemis expansa e Podocnemis unifilis no Rio Javaés, Ilha do Bananal, Brasil

Acta Amazonica, 2003
The distribution of the nests of Podocnemis expansa (Amazon turtle) and Podocnemis unifilis (yellow-spotted side neck turtle) along the point bars of the Javaés River in Bananal Island, demonstrates a clear preference of these chelonians for ...
Paulo Dias Ferreira Júnior, Paulo de Tarso Amorim Castro   +1 more
doaj   +1 more source

ESPÉCIES VEGETAIS UTILIZADAS NA ALIMENTAÇÃO DE Podocnemis unifilis, Troschel 1948 (REPTILIA, TESTUDINAE, PELOMEDUSIDAE) NA REGIÃO DO PRACUÚBA -AMAPÁ-BRASIL

Ciência Animal Brasileira, 2006
Foram obtidas, junto às comunidades que vivem às margens dos rios e lagos da região do Pracuúba, Estado do Amapá, informações sobre 35 espécies vegetais que fazem parte da alimentação natural de Podocnemis unifilis (tracajá).
Yeda Soares de Lucena Bataus, Vera Lúcia Ferreira Luz, Maria Auxiliadora S. Lima, Rubens da Rocha Portal, Isaías José dos Reis   +4 more
doaj   +3 more sources

Abiotic modulators of Podocnemis unifilis (Testudines: Podocnemididae) abundances in the Peruvian Amazon [PDF]

Zoologia (Curitiba, Impresso), 2011
Previous studies have demonstrated that river-based surveys can provide an inexpensive source of information for neotropical zoologists, yet little information is available to inform the application of this technique for the long term monitoring of neotropical turtle species.
Norris, Darren, Pitman, Nigel C.A., Martínez Gonzalez, Jerry, Torres, Eriberto, Pinto, Fernando, Collado, Hernán, Concha, Wilberth, Thupa, Raúl, Quispe, Edwin, Pérez, Jorge, Flores del Castillo, Juan Carlos   +10 more
openaire   +5 more sources

Socio-economic and spatial determinants of anthropogenic predation on Yellow-spotted River Turtle, Podocnemis unifilis (Testudines: Pelomedusidae), nests in the Brazilian Amazon: Implications for sustainable conservation and management

Zoologia (Curitiba), 2013
Human expansion has drastically affected wildlife species across Amazonian waterways and the continued increase in rural populations across Amazonia is likely to increase pressure on widely exploited chelonian species.
Darren Norris, Fernanda Michalski
doaj   +1 more source

Anatomia vascular das artérias renais e gonadais de Podocnemis unifilis Schweigger, 1812 (Testudines, Pelomedusidae) - DOI: 10.4025/actascibiolsci.v31i2.680

Acta Scientiarum: Biological Sciences, 2009
Este trabalho foi desenvolvido com o intuito de enriquecer o conhecimento sobre a morfologia vascular das artérias renais e gonadais de Podocnemis unifilis, facilitando o entendimento da fisiologia clínica e cirúrgica destes animais.
Líria Queiroz Luz Hirano, André Luiz Quagliatto Santos, Patrícia Calixto Pereira, Juliana Macedo Magnino Silva, Árthur Paulino Sanzo Kaminishi, Carlos Gomes Ferreira   +5 more
doaj   +1 more source

Ontogeny of the Shell Bones of Embryos of Podocnemis unifilis (Troschel, 1848) (Testudines, Podocnemididae) [PDF]

The Anatomical Record, 2011
AbstractThe aim of the present study was to investigate the sequence of shell bone formation in the embryos of the Pleurodira, Podocnemis unifilis. Their bones and cartilage were collected and cleared before staining. The shell was also examined by obtaining a series of histological slices.
Fabiano Campos, Lima, André Luiz Quagliatto, Santos, Lucélia Gonçalves, Vieira, Luiz Martins, Da Silva-Junior, Mariluce Ferreira, Romão, Simone Borges Salgueiro, De Simone, Líria Queiroz Luz, Hirano, Juliana Macedo Magnino, Silva, Kennedy Mota, Montelo, Adriana, Malvásio   +9 more
openaire   +2 more sources

Ventilation and gas exchange in two turtles: Podocnemis unifilis and Phrynops geoffroanus (Testudines: Pleurodira) [PDF]

Respiratory Physiology & Neurobiology, 2016
Turtles (Testudines) have two major taxa, Pleurodira and Cryptodira. To date, only limited data are available regarding the respiratory physiology of pleurodirans. To begin to address this, we studied ventilation and gas exchange in Podocnemis unifilis and Phrynops geoffroanus.
Cordeiro, Tabata E. F., Abe, Augusto S., Klein, Wilfried   +2 more
openaire   +3 more sources

Checklist of chelonians from the upper Madeira River and the lower Madeira-Purus interfluvium (Brazilian Amazon), including a range expansion for Podocnemis sextuberculata Cornalia, 1849 [PDF]

Check List, 2016
We present data on occurrence of chelonians for the Madeira River (southwestern Amazon, Brazil). Sampling was undertaken along the BR-319 Highway in the Madeira-Purus interfluvium and along a 125‑km stretch of the upper Madeira River.
Claudia Keller, Francisco Villamarín, Rafael Bernhard, Daniely Félix da Silva   +3 more
doaj   +3 more sources