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 [PDF]
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 +1 more
doaj +4 more sources
Morfometria e histologia das gônadas de machos e fêmeas recém-eclodidos de Podocnemis expansa e Podocnemis unifilis (Testudines, Podocnemididae)=Morphometry and histology of the gonads of males and females hatchlings of Podocnemis expansa and Podocnemis. unifilis (Testudines, Podocnemididae) [PDF]
Acta Scientiarum: Biological Sciences, 2012 Considerando a importância da técnica histológica na sexagem de quelônios e os poucos trabalhos direcionados para esta técnica, é proposto neste estudo caracterizar morfometricamente e histologicamente as gônadas de P. expansa e P. unifilis.
Adson Gomes de Ataídes +4 more
doaj +5 more sources
Community-Based Conservation and Management of Chelonians in the Amazon
Frontiers in Ecology and Evolution, 2022 Chelonians represent an important resource in the Amazon, either as a source of protein at the base of the food chain of aquatic and transition ecosystems, or in the dispersion of seeds of plants from floodplains and flooded forests.
Paulo Cesar Machado Andrade +18 more
doaj +4 more sources
Do Local Environmental Factors and Lunar Cycle Influence Timing and Synchrony of Oviposition of a Turtle with Strict Nocturnal Nesting? [PDF]
Diversity, 2019 Timing of nesting affects fitness of oviparous animals living in seasonal environments, and females may cue on environmental factors for their nesting behavior, but these relationships are understudied in tropical turtles.
Tibisay Escalona +2 more
doaj +4 more sources
Nesting ecology of Podocnemis expansa (Schweigger, 1812) and Podocnemis unifilis (Troschel, 1848) (Testudines, Podocnemididae) in the Javaés River, Brazil [PDF]
Brazilian Journal of Biology, 2010 Nest site has influence on incubation duration and hatching success of two Neotropical turtles, the Giant Amazon River Turtle (Podocnemis expansa) and Yellow-Spotted Side-Neck Turtle (Podocnemis unifilis - "Tracajá").
PD. Ferreira Júnior, PTA. Castro
doaj +4 more sources
Ontogenia dos ossos da cintura peitoral e membros torácicos em embriões de Podocnemis unifilis
Revista de Biologia Neotropical, 2017 Os Testudines abrangem um grupo restrito que combinam aspectos primitivos e derivados, por exemplo, no esqueleto de seus membros. Para descrever a ontogenia do esqueleto da cintura peitoral e dos membros torácicos de Podocnemis unifilis, 66 embriões ...
Fabiano Campos Lima +9 more
doaj +3 more sources
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 +2 more
doaj +4 more sources
New insights of karyoevolution in the Amazonian turtles Podocnemis expansa and Podocnemis unifilis (Testudines, Podocnemidae). [PDF]
Mol Cytogenet, 2016 Cytogenetic studies were conducted in the Brazilian Amazon turtles, Podocnemis expansa Schweigger, 1912 (PEX) and Podocnemis unifilis Troschel, 1848 (PUN) to understand their karyoevolution. Their chromosomal complements were compared using banding techniques (C, G-, Ag-NOR and Chromomycin A3) and fluorescence in situ hybridization (FISH), and efforts ...
Noronha RC +6 more
europepmc +6 more sources
Community involvement works where enforcement fails: conservation success through community-based management of Amazon river turtle nests [PDF]
PeerJ, 2018 Law enforcement is widely regarded as a cornerstone to effective natural resource management. Practical guidelines for the optimal use of enforcement measures are lacking particularly in areas protected under sustainable and/or mixed use management ...
Darren Norris +2 more
doaj +3 more sources
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 +5 more
doaj +1 more source