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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]

open access: yesActa 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

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]

open access: yesActa 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

Nesting ecology of Podocnemis expansa (Schweigger, 1812) and Podocnemis unifilis (Troschel, 1848) (Testudines, Podocnemididae) in the Javaés River, Brazil [PDF]

open access: yesBrazilian 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

Uso histórico y actual de las tortugas charapa (Podocnemis expansa) y terecay (Podocnemis unifilis) en la Orinoquia y la Amazonia

open access: yesBiota 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   +3 more sources

Cytogenetic comparison of Podocnemis expansa and Podocnemis unifilis: a case of inversion and duplication involving constitutive heterochromatin [PDF]

open access: yesGenetics and Molecular Biology, 2013
Podocnemis expansa and P. unifilis present 2n = 28 chromosomes, a diploid number similar to those observed in other species of the genus. The aim of this study was to characterize these two species using conventional staining and differential CBG-, GTG ...
Ricardo José Gunski   +4 more
doaj   +4 more sources

Podocnemis sextuberculata Cornalia 1849 [PDF]

open access: yesCaryologia, 2022
Podocnemis sextuberculata Cornalia 1849:13 Holotype: Not located (illustrated in the original description; Pl. XII, Fig. 3), although originally in the MSNM, according to Roger Bour (Iverson et al. 2017:1). Podocnemis pitiu Silva Coutinho 1868: 150 Holotype: Not located. Bartlettia pitipii Gray 1870:720 Syntypes (originally 4, but only three locatable):
Cleiton Fantin   +1 more
  +6 more sources

Total Mercury Content in the Tissues of Freshwater Chelonium (Podocnemis expansa) and a Human Health Risk Assessment for the Amazon Population in Brazil. [PDF]

open access: yesInt J Environ Res Public Health, 2023
Researchers recognize the silent, negative and deleterious effects caused by mercury pollution in gold mining areas. Freshwater turtles are culturally part of the diet of riverside populations in the Amazon region and this area presents mercury (Hg ...
Targino FJ   +8 more
europepmc   +2 more sources

La situación de Podocnemis erythrocephala (spix, 1824) (Testudinata: Pelomedusidae), en Colombia

open access: yesCaldasia, 1997
The presence of Podocnemís erythrocephala in the blackwater strems of the departament of Guainía, Colombia, in the Orinoco basin is confirmed. The dimensions of 179 individuals and the basic statistical data according to the sex is presented. The maximum
Castaño Mora Olga Victoria
doaj   +2 more sources

Socioeconomic drivers of wild meat consumption in the city of Iquitos, Peru. [PDF]

open access: yesConserv Biol
Abstract Wild meat represents a vital source of micro‐ and macronutrients for forest‐dwelling people; however, city dwellers with access to animal protein from different animals may also consume large amounts of wild meat as part of their customs and traditions, to diversify their diets, to maintain connections to their rural kin, and to access meat ...
Huerta FB   +3 more
europepmc   +2 more sources

Acanthoatractis xinguensis n. gen., n. sp. (Nematoda: Cosmocercoidea: Atractidae) parasite of yellow-spotted Amazon river turtle, Podocnemis unifilis Troschel (Testudines: Podocnemididae) in Brazilian Amazon. [PDF]

open access: yesInt J Parasitol Parasites Wildl
Nematodes collected from the stomach of the yellow-spotted turtle Podocnemis unifilis Troschel, 1848 (Testudinidae) in the Brazilian state of Pará are assigned to a new genus, allocated to the family Atractidae (Cosmocerdoidea). Acanthoatractis n.
Jesus RF   +3 more
europepmc   +2 more sources

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