Results 181 to 190 of about 4,340 (218)

Eggshell composition of Amazon turtle (Podocnemis expansa) is altered after incubation in substrates containing glyphosate and fipronil formulations.

Science of the Total Environment, 2023
Besides its crucial role during embryo development, eggshells are an essential bioindicator of environmental contaminants. However, the effects of contaminant exposure during incubation on the eggshell composition remain poorly known for freshwater ...
Juliana dos Santos Mendonça, L. G. Vieira, L. Hirano, G. Qualhato, J. C. D. de Almeida, A. L. Santos, Evandro de Abreu Fernandes, G. Malafaia, D. Andrade   +8 more
semanticscholar   +1 more source

The exposure in ovo of embryos belonging to Amazonian turtle species Podocnemis expansa (testudines) to commercial glyphosate and fipronil formulations impairs their growth and changes their skeletal development.

Science of the Total Environment, 2022
Pesticides are widely used in agricultural production; moreover, they can have direct and indirect effect on both flora and fauna. Aquatic organisms, among other animals, including reptiles, are mainly susceptible to contamination effects.
Juliana dos Santos Mendonça, L. Hirano, A. L. Santos, Daniela de Melo e Silva, Carolina de Castro Pereira, Matheus Santos Costa, Phâmella Neres de Lima, Amanda Pereira da Costa Araújo, G. Malafaia, I. Ambrosio, Lais de Moura Bife Castilho, A. L. R. dos Santos, A. M. de Faria, Denis Vieira de Andrade, L. G. Vieira   +14 more
semanticscholar   +1 more source

Hydrological Effects on the Reproduction of the Giant South American River Turtle Podocnemis expansa (Testudines: Podocnemididae)

Ichthyology & Herpetology, 2022
Understanding the relationship between species and the environment is crucial to predicting their responses to human-induced global changes, i.e., habitat conversion, biological invasions, and global warming.
M. Simoncini, Heitor Campos de Sousa, Thiago Costa Gonçalves Portelinha, Guth Berger Falcon, E. Collicchio, R. A. Machado Balestra, Vera L. Ferreira Luz, G. Colli, Adriana Malvasio   +8 more
semanticscholar   +1 more source

Efeitos da ingestão de microplásticos de polietileno nas gônadas de Podocnemis expansa.

Anais do XXXIII Congresso de Iniciação Científica
Gabriel Cândido da Silva, M. S. Magalhães   +1 more
semanticscholar   +2 more sources

Pronephros and mesonephros characterization during the embryonic development of the giant South American river turtle, Podocnemis expansa (Podocnemididae: Testudines)

The Anatomical Record, 2022
This study aimed to describe pronephros and mesonephros morphology during the embryonic development of Podocnemis expansa. Eggs were collected on an artificial beach at Balbina, Amazonas, Brazil, during the entire incubation period (mean of 59 days). The
M. S. Magalhães, L. C. Dias, M. F. Oliveira, A. Sebben, C. E. Moura   +4 more
semanticscholar   +1 more source

Hematologic variables of the Arrau turtle (Podocnemis expansa) under the effects of different anticoagulants and cytologic stains.

Veterinary clinical pathology, 2021
BACKGROUND The hematology of turtles of the Amazon, such as the Arrau turtle (Podocnemis expansa), has not been well described in the literature. Referencing how to collect and analyze blood samples is fundamental for the medical practice of these exotic
Guilherme C Garcia, J. Alves-Júnior, A. Santana, C. Stas, C. C. da Silva, C. Kanayama, E. R. Bittar, J. F. Bittar   +7 more
semanticscholar   +1 more source

Podocnemis expansa

2022
Published as part of Iverson, John B., 2022, A review of Chelonian type specimens (order Testudines), pp.
openaire   +1 more source

Podocnemis expansa

2011
Published as part of Gaffney, Eugene S., Meylan, Peter A., Wood, Roger C., Simons, Elwyn & De Almeida Campos, Diogenes, 2011, Evolution Of The Side-Necked Turtles: The Family Podocnemididae, pp. 1-237 in Bulletin of the American Museum of Natural History 2011 (350) on page 29, DOI: 10.1206/350.1, http://zenodo.org/record ...
Gaffney, Eugene S., Meylan, Peter A., Wood, Roger C., Simons, Elwyn, De Almeida Campos, Diogenes   +4 more
openaire   +1 more source

Mutagenic, genotoxic and morphotoxic potential of different pesticides in the erythrocytes of Podocnemis expansa neonates.

Science of the Total Environment, 2020
Despite the damaging effects of pesticides glyphosate (Gly), atrazine (Atra) and fipronil (Fip) on different organisms, the mutagenic, genotoxic and morphotoxic potential of testudine erythrocytes in freshwater remains unknown.
J. C. D. de Oliveira, L. G. Vieira, W. F. Carvalho, Marcelino Benvindo de Souza, Aline Sueli de Lima Rodrigues, Karina Simões, Daniela de Melo De Silva, Juliana dos Santos Mendonça, L. Hirano, A. L. Santos, G. Malafaia   +10 more
semanticscholar   +1 more source

Physical Characteristics of Giant Amazon Turtle (Podocnemis expansa) Nests

Chelonian Conservation and Biology, 2007
ABSTRACT We determined the relationship between incubation success and physical characteristics of Podocnemis expansa nests on 4 sand beaches of the Araguaia River in the southern Amazon basin, Brazil. Sand samples measuring grain size, humidity, and density were collected during the first 7 days after egg laying.
Kelly Bonach, José F. Lewinger, Álvaro P. da Silva, Luciano M. Verdade   +3 more
openaire   +1 more source