Results 31 to 40 of about 1,619 (185)
Ecología Aplicada, 2022 In the Amazon floodplains, hydrological variability plays a crucial role by shaping the habitat, offering shelter and feeding or breeding areas. During the dry season, some fresh water turtles such as the yellow-spotted turtle (Podocnemis unifilis Troschel, 1848) use the sand banks at point bar areas as breeding sites, which must be available in time ...
Véliz Rosas, Claudia +4 more
openaire +2 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 +1 more source
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
Biota Colombiana, 2013 The Arrau river turtle or giant South American turtle (Podocnemis expansa) and the yellow-spotted river turtle (Podocnemis unifilis) have wide distributions within the Orinoco and Amazon River basins.
Antonio Castro Casal +4 more
doaj +9 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 +2 more
doaj +1 more source
Uso de subprodutos e resíduos na elaboração de ração artesanal para filhotes de tartarugas (Podocnemis expansa) e tracajás (Podocnemis unifilis) em sistemas de criação comunitária no médio Juruá [PDF]
, 2022 The breeding of turtles has been stimulated in the Amazon state as a conservation strategy and, in 2017, the State Enviromental Council regulated the community rearing of hatchlings of the Giant South American river turtle (Podocnemis expansa) and Yellow-
Andrade, Paulo César Machado +4 more
core +3 more sources
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 +1 more source
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 +10 more
openaire +5 more sources
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 +4 more
doaj +3 more sources
Modeling neck mobility in fossil turtles [PDF]
, 2014 Turtles have the unparalleled ability to retract their heads and necks within their shell but little is known about the evolution of this trait. Extensive analysis of neck mobility in turtles using radiographs, CT scans, and morphometry reveals that ...
Anquentin +54 more
core +1 more source