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Avaliação da predação de Podocnemis expansa e Podocnemis unifilis (Testudines, Podocnemididae) no rio Javaés, Tocantins Evaluation of predation in Podocnemis expansa and Podocnemis unifilis (Testudines, Podocnemididae) in the Javaés River, Tocantins [PDF]

open access: yesActa Amazonica, 2009
Podocnemis expansa e P. unifilis são animais de vida longa, com uma demorada maturação sexual, o que influencia uma baixa taxa de substituição de indivíduos.
Giovanni Salera Junior   +2 more
doaj   +10 more sources

Avaliação de padrão irregular dos escudos do casco em Podocnemis expansa e Podocnemis unifilis (Testudines, Podocnemididae) Evaluation of irregular pattern of the shell scutes in Podocnemis expansa and Podocnemis unifilis (Testudines, Podocnemididae) [PDF]

open access: yesActa Amazonica, 2009
O casco de Podocnemis expansa (tartaruga-da-amazônia) e Podocnemis unifilis (tracajá), os maiores quelônios de água doce da América do Sul, é uma estrutura única que diferencia esse grupo dos vertebrados atuais e está associado a alguns padrões ...
Giovanni Salera-Junior   +2 more
doaj   +10 more sources

A new species of Orientatractis (Nematoda: Cosmocercoidea: Atractidae) parasite of Yellow-Spotted Amazon River Turtle, Podocnemis unifilis Troschel, 1848 (Testudines: Podocnemididae) in Brazilian Amazon [PDF]

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2023
The current study describes a new species of nematode, Orientatractis matosi n. sp. (Atractidae), from the stomach and large intestine of Podocnemis unifilis Troschel, 1848 (Testudinidae), collected in the Tocantins and Xingu rivers in the Brazilian ...
Ronald Ferreira Jesus   +3 more
doaj   +3 more sources

New shell information and new generic attributions for the Egyptian podocnemidid turtles “Podocnemisfajumensis (Oligocene) and “Podocnemisaegyptiaca (Miocene) [PDF]

open access: yesFossil Record, 2021
The early Oligocene “Podocnemis” fajumensis and the early Miocene “Podocnemis” aegyptiaca are two podocnemidid turtles from northern Egypt, defined more than a century ago.
A. Pérez-García
doaj   +3 more sources

Hematological and blood chemistry parameters of a Podocnemis vogli and P. unifilis captive population in Colombia [PDF]

open access: yesFrontiers in Veterinary Science, 2022
The Podocnemididae family is seriously affected by anthropogenic factors, which is why almost all of their family members are threatened, according to the IUCN red list.
Cristian Rodríguez-Almonacid   +4 more
doaj   +2 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]

open access: yesCheck 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   +3 more
doaj   +3 more sources

Phrynops gibbus [PDF]

open access: yes, 1981
Number of Pages: 2Integrative BiologyGeological ...
Ernst, Carl H.
core   +1 more source

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

open access: yesRevista 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

Physical mapping of repetitive DNA suggests 2n reduction in Amazon turtles Podocnemis (Testudines: Podocnemididae). [PDF]

open access: yesPLoS ONE, 2018
Cytogenetic studies show that there is great karyotypic diversity in order Testudines (2n = 26-68), and that this may be mainly attributed to the presence/absence of microchromosomes. Members of the Podocnemididae family have the smallest diploid numbers
Manoella Gemaque Cavalcante   +5 more
doaj   +1 more source

Modeling neck mobility in fossil turtles [PDF]

open access: yes, 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

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