Results 171 to 180 of about 1,866 (199)

Management and relocation of nests of Podocnemis expansa (Schweigger, 1812) (Testudines, Podocnemididae) on the Crixás-Açu river, Brazil [PDF]

ALHO CJR., ALHO CJR., AS. Gomes, BATISTELLA AM., BJORDNAL KA., BRODERICK AC., BULL JJ., CORREA JCH., FERREIRA JÚNIOR PD., FERREIRA JÚNIOR PD., FERREIRA JÚNIOR PD., FERREIRA JÚNIOR PD., FERREIRA JÚNIOR PD., FERREIRA JÚNIOR PD., FOLK RK., GEORGES A., GIRONDOT M., GODLEY BJ., GODLEY BJ., HOSMER D.W., LUBIANA A., MALVASIO A., MALVASIO A., MALVASIO A., MARCOVALDI MA., MILTON SL., MITCHELL C., MORREALE SJ., MROSOVSKY N., MROSOVSKY N., MROSOVSKY N., MROSOVSKY N., NARO-MACIEL E., PD. Ferreira Júnior, PEZZUTI JCB., PIEAU C., PRITCHARD PCH., RUEDA-ALMONACID JV., SALERA JÚNIOR G., TUTTLE J., VALENZUELA N., VALENZUELA N., VALENZUELA N., VALENZUELA N., YNTEMA CL.   +44 more
core   +1 more source

Farming non-typical sentient species: ethical framework requires passing a high bar. [PDF]

J Agric Environ Ethics
Mullan S, Nogueira SSC, Nogueira-Filho S, Zanella A, Rooney N, Held SDE, Mendl M.   +6 more
europepmc   +1 more source

Cold-blooded culture? Assessing cultural behaviour in reptiles and its potential conservation implications. [PDF]

Philos Trans R Soc Lond B Biol Sci
Wilkinson A, Reber SA, Root-Gutteridge H, Dassow A, Whiting MJ.   +4 more
europepmc   +1 more source

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Characterization of the complete mitochondrial genome of Podocnemis expansa (Pleurodira: Podocnemididae)

Conservation Genetics Resources, 2017
The Arrau River turtle (Podocnemis expansa) is one of the largest side-neck turtles which listed as an endangered species in IUCN red list. In this study, the complete mitochondrial genome of P. expansa was determined by the sequencing of PCR fragments. The complete mitochondrial genome of P.
Kangyu Wang, Shaokun Li, Guiqi Bi
exaly   +2 more sources

THE IMPORTANCE OF NIDIFICATION ENVIRONMENT IN THE PODOCNEMIS EXPANSA AND PODOCNEMIS UNIFILIS PHENOTYPES (TESTUDINES: PODOCNEMIDIDAE)

South American Journal of Herpetology, 2007
Abstract This work analyses the influence that nest site characteristics have over natural incubation in freshwater turtles Podocnemis expansa and Podocnemis unifilis. Results indicate that neither carapace size nor weight of P. expansa hatchlings depends on environmental characteristics.
Darlan Tavares Feitosa, Paulo P. Passos, Ana Lúcia da Costa Prudente   +2 more
exaly   +2 more sources

Thermal Environment Characteristics of Podocnemis expansa and Podocnemis unifilis Nesting Areas on the Javaés River, Tocantins, Brazil

Chelonian Conservation and Biology, 2006
ABSTRACT Subsurface temperature variation suggests that the thermal environment of giant Amazon river turtle (Podocnemis expansa) nests is influenced by the proximity of the water table and by the nest depth. The difference between vertical temperature gradients along fluvial beaches indicates that nest placement can exert a significant influence on ...
Paulo Dias Ferreira Júnior, Paulo de Tarso Amorim Castro   +1 more
exaly   +2 more sources

Enterobacteriaceae Associated with Eggs of Podocnemis expansa and Podocnemis unifilis (Testudines: Chelonia) in Nonpolluted Sites of National Park of Araguaia Plains, Brazil

Journal of Zoo and Wildlife Medicine, 2010
Fertile eggs of Podocnemis expansa and Podocnemis unifilis were investigated for the presence of enterobacteria, as these two endangered species have the potential for conservation measures that include egg transfer. Knowledge of normal microflora associated with turtles and turtle eggs would help effectively manage the transfer of these eggs among ...
Paula B Morais, Adriana Malvasio, Raphaël Sanzio Pimenta   +2 more
exaly   +3 more sources

A Demographic Study of the Arrau Turtle (Podocnemis expansa) in the Middle Orinoco River, Venezuela

Chelonian Conservation and Biology, 2010
Abstract Podocnemis expansa (the giant South American or arrau turtle) is a freshwater turtle in critical risk of extinction, distributed along the Orinoco, Amazon, and Esequibo river basins. Protection of nesting beaches and headstarting of hatchlings has been in progress since 1989 on the Arrau Turtle Wildlife Refuge located in the Middle Orinoco ...
Guillermo R Barreto
exaly   +2 more sources

CONSTANT, SHIFT, AND NATURAL TEMPERATURE EFFECTS ON SEX DETERMINATION INPODOCNEMIS EXPANSATURTLES

Ecology, 2001
Environmental sex determination may yield biased sex ratios, as is the case in many reptilian species with temperature-dependent sex determination (TSD). Determin- ing TSD thermal ecology is important to understanding sex ratio evolution in those species, as TSD systems may pose a challenge to Fisherian models that predict the production of 1:1 sex ...
Nicole Valenzuela
exaly   +2 more sources

Effects of the exposure to atrazine on bone development of Podocnemis expansa (Testudines, Podocnemididae)

Ecotoxicology, 2016
The use of pesticides is a widely spread practice in Brazilian agriculture, and dispersion of these substances is an important factor for the fauna and flora. Atrazine is an endocrine disruptor in the xenoestrogen class that is used worldwide in agricultural practices. In Brazil, its use is permitted in several crops.
Juliana dos Santos, Mendonça, Lucélia Gonçalves, Vieira, Sady Alexis Chavauty, Valdes, Franz Zirena, Vilca, Valdemar Luiz, Tornisielo, André Luiz Quagliatto, Santos   +5 more
openaire   +2 more sources