Results 161 to 170 of about 1,293 (171)

Heart morphology during the embryonic development of Podocnemis unifilis Trosquel 1948 (Testudines: Podocnemididae)

The Anatomical Record, 2022
AbstractCardiogenesis is similar in all vertebrates, but differences in the valvuloseptal morphogenesis among non‐crocodilian reptiles, birds, and mammals are noted. The origin of mesenchymal structures such as valves that regulate the passage of blood and the formation of partial septa that prevent the complete mixing of oxygen‐rich and low‐oxygen ...
Layla Ianca Queiroz Rocha, Maria Fabiele da Silva Oliveira, Lucas Castanhola Dias, Moacir Franco de Oliveira, Carlos Eduardo Bezerra de Moura, Marcela dos Santos Magalhães   +5 more
openaire   +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

Morphology of the Digestive Tube of the Podocnemididae in the Brazilian Amazon

Herpetologica, 2014
Abstract:  We describe the morphology of the digestive tube of Podocnemis expansa, Podocnemis unifilis, Podocnemis sextuberculata, Podocnemis erythrocephala, and Peltocephalus dumerilianus. The esophagus in these species has two distinct regions: the anterior region has esophageal papillae and the posterior has longitudinal folds. Esophageal glands are
Magalhães, M. S., Vogt, Richard Carl, Barcellos, José Fernando Marques, Moura, Carlos Eduardo Bezerra, Silveira, Ronis da   +4 more
openaire   +2 more sources

Embryonic development of Podocnemis unifilis (Testudines: Podocnemididae)

Zoomorphology, 2022
Maria Fabiele S. Oliveira, Layla Ianca Q. Rocha, Lucas C. Dias, Carlos Eduardo B. de Moura, Richard C. Vogt, Marcela S. Magalhães   +5 more
openaire   +1 more source

Polyandry in Podocnemis unifilis (Pleurodira; Podocnemididae), the vulnerable yellow-spotted Amazon River turtle

Amphibia-Reptilia, 2008
Abstract We used eight microsatellite loci to investigate the mating system in P. unifilis. DNA samples were collected from 66 hatchlings sampled from six nests on a central Amazon River beach near Barreirinha, Amazonas, Brazil. We found that P.
Cleiton Fantin, Luciana Santos Viana, Luiz Alberto dos Santos Monjeló, Izeni Pires Farias   +3 more
openaire   +1 more source

Nesting Ecology of Podocnemis erythrocephala (Testudines, Podocnemididae) of the Rio Negro, Amazonas, Brazil

Chelonian Conservation and Biology, 2008
ABSTRACT We studied reproductive ecology and egg survivorship of Podocnemis erythrocephala (Spix 1824) in 4 campina habitats on the Ayuana River, Santa Isabel do Rio Negro, Amazonas, Brazil. There were 2 nesting periods, the first in early October and the other in the beginning of December, separated by a period of flash floods.
Batistella, Alexandre Milaré, Vogt, Richard Carl   +1 more
openaire   +2 more sources

PODOCNEMIDIDAE AND PELOMEDUSIDAE, FRESHWATER TURTLES

2022
G. Kuchling, J. Velosoa, G. García
openaire   +1 more source

Repertorio Vocal de la tortuga sabanera, Podocnemis vogli (Podocnemididae)

2021
openaire   +1 more source

OBSTIPAÇÃO EM Podocnemis erythrocephala (Testudines: Podocnemididae)

Anais do XXXIII Congresso de Iniciação Científica
RENAN MORI ROCHA, Odette Gonçalves de Araújo, LUDIGAR APOLINÁRIO DE ALBUQUERQUE, Iúre Alberto Da Silva Brilhante   +3 more
openaire   +1 more source

Efeitos da exposição ao Roundup® no desenvolvimento embrionário de Podocnemis expansa (testudines: podocnemididae)

Apesar dos estudos e evidências científicas demonstrarem as consequências nocivas e impactos socioambientais negativos de sua utilização, o consumo de agrotóxicos segue em crescimento no Brasil. O glifosato é um dos agrotóxicos mais utilizados no Brasil e no mundo, sendo a fórmula comercial conhecida como Roundup® um dos principais produtos ...
openaire   +1 more source