Results 111 to 120 of about 1,866 (199)

Population demography of an endangered lizard, the Blue Mountains Water Skink. [PDF]

open access: yes, 2013
BACKGROUND: Information on the age structure within populations of an endangered species can facilitate effective management. The Blue Mountains Water Skink (Eulamprus leuraensis) is a viviparous scincid lizard that is restricted to < 40 isolated ...
Chevalley, M.   +4 more
core   +2 more sources

Computed tomography for evaluation of the normal lung in adult male terrapins of five captive species

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia
Data on the tomographic characteristics of lung parenchyma in terrapins are rare. The objective of this study was to describe the tomographic anatomy of the lung parenchyma in five species of terrapins and estimate the normal CT attenuation values of the
I.C.C. Silva   +5 more
doaj   +1 more source

Ontogeny of the cranial bones of the giant amazon river turtle Podocnemis expansa Schweigger, 1812 (Testudines, Podocnemididae) - doi: 10.4025/actascibiolsci.v32i2.5777

open access: yesActa Scientiarum: Biological Sciences, 2010
In order to determine the normal stages of formation in the sequence of ossification of the cranium of Podocnemis expansa in its various stages of development, embryos were collected starting on the 18th day of natural incubation and were subjected to ...
Lucélia Gonçalves Vieira   +2 more
doaj   +1 more source

The global decline of reptiles, deja’ vu amphibians [PDF]

open access: yes, 2000
Reptile species are declining on a global scale. Six significant threats to reptile populations are habitat loss and degradation, introduced invasive species, environmental pollution, disease, unsustainable use, and global climate ...
Buhlmann, Kurt A.   +10 more
core   +1 more source

Prevalence and parasitemia of Haemogregarina sp. in Podocnemis expansa (Testudines: Podocnemididae) from the Brazilian Amazon

open access: yesRevista Brasileira de Parasitologia Veterinária
Seventy-five turtles Podocnemis expansa in the Brazilian Amazon were examined for the presence of ectoparasites and hemoparasites. Samplings were performed in three study areas in the state of Tocantins, Brazil.
Amanda Maria Picelli   +3 more
doaj   +1 more source

Morfometria do trato digestório da tartaruga-da-Amazônia (Podocnemis expansa) criada em sistema comercial

open access: yesRevista Brasileira de Zootecnia, 2003
Estudos de parâmetros morfométricos do trato gastrointestinal (TGI) são necessários para o conhecimento dos processos digestórios dos alimentos no organismo animal e indicar a preferência alimentar de uma espécie.
Vera Lúcia Ferreira Luz   +5 more
doaj  

Enzymes of energy metabolism in hatchlings of amazonian freshwater turtles (Testudines, Podocnemididae)

open access: yesBrazilian Journal of Biology
The metabolic profiles of selected tissues were analyzed in hatchlings of the Amazonian freshwater turtles Podocnemis expansa, P. unifilis and P. sextuberculata.
WP. Duncan, JL. Marcon
doaj   +1 more source

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)

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. Todos os espécimes utilizados neste trabalho foram procedentes do rio Javaés, entorno do Parque Nacional do ...
Adson Gomes de Ataídes   +4 more
openaire   +1 more source

On the diversity and biomass of the reptile fauna in the Central Amazonian rain forest near Manaus

open access: yes, 1976
Auf einer 10 Hektar großen Untersuchungsfläche im Reqenwald des Reserva Florestal Ducke bei Manaus wurden vom 17. bis 30. Dezember 1964 und 11. bis 18. Januar 1965 40 Reptilienarten (13 Familien) gesammelt.
Müller, P.
core  

Enterobacteria in free-living and captive Amazon turtles, Podocnemis expansa (Podocnemididae: Testudines)

open access: yes, 2018
The turtle Podocnemis expansa is an important wildlife species from the Amazon rainforest of Brazil. This also represents an important resource for coastal communities, as it has been historically consumed as food. Nevertheless, besides the sustainability issues, recent concerns have been raised over the health of the animals and possible impacts on ...
Meyer Junior, Julio Cesar   +4 more
openaire   +2 more sources

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