Results 11 to 20 of about 532 (174)

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]

International Journal for Parasitology: Parasites and Wildlife
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.
Ronald Ferreira Jesus, Bianca Nandyara, Jeannie Nascimento dos Santos, Francisco Tiago de Vasconcelos Melo   +3 more
doaj   +3 more sources

New insights of karyoevolution in the Amazonian turtles Podocnemis expansa and Podocnemis unifilis (Testudines, Podocnemidae) [PDF]

Molecular Cytogenetics, 2016
Cytogenetic studies were conducted in the Brazilian Amazon turtles, Podocnemis expansa Schweigger, 1912 (PEX) and Podocnemis unifilis Troschel, 1848 (PUN) to understand their karyoevolution. Their chromosomal complements were compared using banding techniques (C, G-, Ag-NOR and Chromomycin A3) and fluorescence in situ hybridization (FISH), and efforts ...
Noronha, R. C. R., Barros, L. M. R., Araujo, R. E. F., Marques, D. F., Nagamachi, C. Y., Martins, C., Pieczarka, J. C.   +6 more
openaire   +5 more sources

Assessment of Mercury Concentration in Turtles (Podocnemis unifilis) in the Xingu River Basin, Brazil [PDF]

International Journal of Environmental Research and Public Health, 2018
Many studies on mercury contamination in aquatic biota deal with the effect of consuming metal-contaminated organisms on human health. In this study, we examined the factors that cause mercury contamination in Podocnemis unifilis in the Xingu River Basin of Mato Grosso and Pará States, Brazil.
Pignati, Marina Teófilo, Pezzuti, Juarez Carlos Brito, Souza, Larissa Costa de, Lima, Marcelo de Oliveira, Pignati, Wanderlei Antonio, Mendes, Rosivaldo de Alcântara   +5 more
openaire   +3 more sources

Simple radiography of the coelomic cavity in Podocnemis expansa and Podocnemis unifilis: proposal for an illustrative atlas as a diagnostic tool

Brazilian Journal of Animal and Environmental Research
Testudines are among the most popular reptiles chosen as exotic pets and, as a result, are referred more frequently for veterinary evaluation. However, it is difficult to investigate pathologies in these individuals due to their body conformation, which prevents a detailed physical examination.
Juliana Valentin Portela, Leandro Nassar Coutinho, Ellen Yasmin Eguchi Mesquita, Bármela da Silva   +3 more
openalex   +3 more sources

Crescimento e eficiência alimentar de tracajás (Podocnemis unifilis) juvenis em cativeiro

DELOS: DESARROLLO LOCAL SOSTENIBLE, 2023
Dentre os quelônios da Amazônia, o tracajá, Podocnemis unifilis (Troschel, 1848), é uma das espécies mais capturadas para consumo na Amazônia brasileira, integrando a lista de animais vulneráveis à extinção. A espécie apresenta boa condição para criação em cativeiro, adaptando-se facilmente às condições impostas no manejo de criação, além de boa ...
Jamile da Costa Araújo, Yuri Ian Carvalho Furtado, Deybson dos Santos Oliveira, Willian Marques Ribamar, Paula Tais Cantuária Dos Santos   +4 more
openalex   +3 more sources

Parasitic Fauna of Free‐Living Chelonoidis denticulatus From the Rio Acre Ecological Station and the Municipality of Cruzeiro do Sul, Western Amazon, Brazil [PDF]

Veterinary Medicine International, Volume 2026, Issue 1, 2026.
Tortoises, such as Chelonoidis denticulatus, are described as hosts of many parasites, such as helminths and ticks of the genus Amblyomma, which are important vectors of rickettsial infection in Brazil. Additionally, the high consumption of meat from these animals in Acre results in a high risk of zoonotic outbreaks due to contact with the hosts and ...
Ester Nascimento da Costa, Caio Bonfanti Gomes, Rayná Girard Madeira, João José de Souza Moura, Muriele Furtado de Assis, Ana Paula Carvalho Gomes, Victória Luiza de Barros Silva, Iago de Sá Moraes, Reiner Silveira de Moraes, Richard de Campos Pacheco, Dirceu Guilherme de Souza Ramos, Francisco Glauco de Araújo Santos, Nora Mestorino   +12 more
wiley   +2 more sources

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

Brazilian 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"). The 2000 and 2001 nesting seasons have been monitored at the Javaés River in Bananal Island, Brazil.
Ferreira Júnior, PD., Castro, PTA.
exaly   +6 more sources

Community-Based Conservation and Management of Chelonians in the Amazon

Frontiers in Ecology and Evolution, 2022
Chelonians represent an important resource in the Amazon, either as a source of protein at the base of the food chain of aquatic and transition ecosystems, or in the dispersion of seeds of plants from floodplains and flooded forests.
Paulo Cesar Machado Andrade, Paulo Henrique Guimarães de Oliveira, Aldeniza Cardoso de Lima, João Alfredo da Mota Duarte, Sandra Helena da Silva Azevedo, Anndson Brelaz de Oliveira, Carlos Dias de Almeida, Eleyson Barboza da Silva, Jânderson Rocha Garcez, José Ribamar da Silva Pinto, Liriann Chrisley Nascimento da Silva, Midian Salgado Monteiro, Wander da Silva Rodrigues, Thiago Luiz Ferreira Anízio, Alfredo Luiz Belém Pontes, Ruth Lima Teixeira, Jefferson Moreira da Silva, Wallice Luiz Paxiúba Duncan, Richard Carl Vogt   +18 more
doaj   +4 more sources

Avaliação da predação de Podocnemis expansa e Podocnemis unifilis (Testudines, Podocnemididae) no rio Javaés, Tocantins [PDF]

Acta 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. Suas populações são caracterizadas por uma pequena mortalidade dos animais adultos, mas alta taxa de mortalidade de filhotes e embriões.
Adriana Malvasio
exaly   +5 more sources

Neuroanatomical study of the podocnemidid turtle Neochelys arenarum (Pleurodira), from the early Eocene of France [PDF]

The Anatomical Record, Volume 308, Issue 6, Page 1646-1658, June 2025.
Abstract Neochelys is an exclusively European Eocene podocnemidid genus belonging to a linage that reached this continent at the early Eocene. The so far available anatomical information about it is relatively abundant, especially considering that of its shell, at least partially preserved for the eight valid species currently considered.
Marcos Martín‐Jiménez, Adán Pérez‐García   +1 more
wiley   +2 more sources