Results 11 to 20 of about 663 (179)

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   +3 more sources

Transplantation of nest of amazonian turtle Podocnemis expansa (Schweigger, 1812) [PDF]

open access: yesBioscience Journal, 2020
The main objective of this study is to analyze the effectiveness of the Podocnemis expansa nest transplantation technique used to aid in the conservation of the species, aiming to increase the number of individuals in nature.
Thays Nogueira Lobo Ribeiro   +1 more
doaj   +7 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   +5 more sources

Association of acepromazine with propofol in giant amazon turtles Podocnemis expansa reared in captivity Associação da acepromazina com propofol em tartarugas-da-amazônia Podocnemis expansa criadas em cativeiro [PDF]

open access: yesActa Cirúrgica Brasileira, 2012
PURPOSE: To evaluate the effects of different concentrations of an anesthetic association in giant amazon turtles (Podocnemis expansa). METHODS: Twenty healthy P.
José Roberto Ferreira Alves-Júnior   +5 more
doaj   +7 more sources

Chemical characteristics and thickness of Podocnemis expansa post-hatching eggshells (Testudines, Podocnemididae) [PDF]

open access: yesActa Scientiarum: Biological Sciences, 2016
Knowledge on chemical components of the post-hatching eggshell of reptiles may provide indicators of the quality of the diet offered to females kept in captivity.
Caio Henrique Ferreira   +5 more
doaj   +4 more sources

Podocnemis expansa

open access: yes, 2022
Published as part of Iverson, John B., 2022, A review of Chelonian type specimens (order Testudines), pp.
Iverson, John B.
openaire   +3 more sources

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

open access: yesIheringia. 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   +3 more
openaire   +5 more sources

Transferrin polymorphism in Amazon turtle (Podocnemis expansa) stocks [PDF]

open access: yesBrazilian Journal of Genetics, 1996
The transferrin gene locus (Tf) was investigated in five populations of the Amazon turtle (Podocnemis expansa) sampled from five geographical areas in the Amazon region. This locus was polymorphic, showing three genotypes (Tfa Tfa, Tfa Tfb and Tfb Tfb), presumably encoded by two co-dominant alleles, Tfa and Tfb.
Teixeira, Aylton Saturnino   +3 more
openaire   +5 more sources

Allometry of reproduction of Podocnemis expansa in Southern Amazon basin [PDF]

open access: yesAmphibia-Reptilia, 2006
Abstract Podocnemis expansa (giant Amazon freshwater turtle) is the biggest freshwater turtle of South America. Like in other reptiles, the nest of P. expansa is a hole in the sand deep enough to avoid predators and extremes of temperature and humidity.
Bonach, K.   +2 more
core   +7 more sources

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

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   +2 more sources

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