Results 41 to 50 of about 502 (160)

Estrutura populacional, tamanho e razão sexual de Podocnemis unifilis (Testudines, Podocnemididae) no rio Guaporé (RO), norte do Brasil [PDF]

Phyllomedusa: Journal of Herpetology, 2004
Population structure, size and sex ratio in Podocnemis unifilis (Testudines, Podocnemididae) in the Guaporé river (RO), northern Brazil.Population structure and sex ratio of Podocnemis unifilis was studied from June to November 1989 and from March to ...
Augusto Fachín-Terán, Richard C. Vogt
doaj  

Mosaic morphology in Podocnemididae revealed by a new turtle from the Middle Miocene La Venta Biome, Colombia

Papers in Palaeontology, Volume 11, Issue 6, November/December 2025.
Abstract A new genus and species of podocnemidid turtle, Shakiremys colombiana, is described here from the Middle Miocene La Venta Biome, located in south‐central Colombia. The new taxon is represented by two specimens: one consisting of a complete skull and articulated shell, and the other of an articulated shell only.
Edwin‐Alberto Cadena, David E. Leal‐Amaya, Andrés Vanegas‐Vanegas, Rubén D. Vanegas‐Vanegas, Lino J. E. Guevara‐Serrano   +4 more
wiley   +1 more source

Morfologia externa, topografia do coração e comportamento da arteria coronaria de Podocnemis expansa (Schweigger, 1812)

Bioscience Journal, 2006
Foram estudadas cinco Podocnemis expansa, fêmeas, jovens, procedentes do rio Araguaia município de Cocalinho-MT sob Licença do IBAMA No 013/97-DIFAS. Os animais tiveram seu sistema arterial injetado com solução de látex corada com pigmento específico e ...
Andre Luiz Quagliatto Santos, Gisele Junqueira Ribeiro de Alvarenga, Flavio Machado de Moraes, Raul Henderson Avila Junior, Saulo Fernandes Mano de Carvalho, Livia Monteiro Magalhaes, Mariana Batista Andrade, Fernanda Kindler Marques   +7 more
doaj  

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

Computed tomography for evaluation of the normal lung in adult male terrapins of five captive species

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Data on the tomographic characteristics of lung parenchyma in terrapins are rare. The objective of this study was to describe the tomographic anatomy of the lung parenchyma in five species of terrapins and estimate the normal CT attenuation values of the
I.C.C. Silva, L.C. R. Albuquerque, A.S. Oliveira, W.A. Silva, T.H.T. Fernandes, F.S. Costa   +5 more
doaj   +1 more source

Temperature-sex determination in Podocnemis expansa (Testudines, Podocnemididae) [PDF]

Iheringia. Série Zoologia, 2011
This study has been carried out at the central region of the Araguaia river on the border between the states of Goiás and Mato Grosso in the Brazilian Amazon Basin from September to December 2000. We recorded temperature fluctuation, clutch-size, incubation period and hatching success rate and hatchlings' sex ratio of five nests of Podocnemis expansa ...
Bonach, Kelly, Malvasio, Adriana, Matushima, Eliana R., Verdade, Luciano M.   +3 more
openaire   +4 more sources

Breaking down silos: Conservation areas for Amazonian flagship terrestrial and freshwater species

Conservation Science and Practice, Volume 7, Issue 9, September 2025.
This study shows that 17% of the Amazon River Basin is covered by areas of high jaguar density and freshwater migratory species richness, 83% of which are found in Brazil and Peru. A third of these areas are located outside of formal protected areas or Indigenous territories.
Natalie Shahbol, Melissa Arias, Valeria Boron, Helga Correa Wiederhecker, Bernardo Caldas De Oliveira, Fabiola La Rosa, Robin Naidoo, Marcelo Oliveira‐Da‐Costa, Jessica Pacheco, Mariana Paschoalini Frias, Sandra Petrone, Lila Sainz, David Tickner, Fernando Trujillo, José Saulo Usma Oviedo, Paul Andre Van Damme, Michele Thieme   +16 more
wiley   +1 more source

Estimating abundance of aggregated populations with drones while accounting for multiple sources of errors: A case study on the mass nesting of Giant South American River Turtles

Journal of Applied Ecology, Volume 62, Issue 8, Page 2036-2047, August 2025.
The developed approach can be applied to several contexts to efficiently survey spatially aggregated populations using drone‐derived orthomosaics, and to understand phenology at these aggregation sites. We provide general recommendations for planning surveys and discuss implementations of our approach using other types of marking methods and model ...
Ismael V. Brack, Denis Valle, Camila Ferrara, Omar Torrico, Enrique Domic‐Rivadeneira, German Forero‐Medina   +5 more
wiley   +1 more source

Pharmacological restraint of captivity giant Amazonian turtle Podocnemis expansa (Testudines, Podocnemididae) with xylazine and propofol Contenção farmacológica de tartaruga da Amazônia Podocnemis expansa (Testudines, Podocnemididae) de cativeiro com xilazina e propofol

Acta Cirúrgica Brasileira, 2008
PURPOSE: Identify a technique to induce brief sedation and hypnosis in Podocnemis expansa. METHODS: Twenty commercially bred P. expansa, weighing on average 1.2 ± 0.24 kg, were subjected to two protocols: G1 was given 1.5 mg/kg IM of xylazine and ...
André Luiz Quagliatto Santos, Andréa Cristina Scarpa Bosso, José Roberto Ferreira Alves Júnior, Fernando Moraes Machado Brito, José Ricardo Pachally, Raul Henderson Ávila Junior   +5 more
doaj   +1 more source

Using life history to predict outcomes of conservation translocations of herpetofauna

Animal Conservation, Volume 28, Issue 4, Page 592-606, August 2025.
We collected data on key life history traits for all herpetofauna profiled in the IUCN Global Conservation Translocation Perspectives series to examine how life history can predict outcomes and difficulties of conservation translocations. The relationships we found provide important insights for conservation practitioners that can be used in the ...
M.R. Parker, L.A. Fitzgerald
wiley   +1 more source