Results 21 to 30 of about 2,075 (189)

Interdependencies between Indigenous peoples, local communities, and freshwater systems in a changing Amazon. [PDF]

Conserv Biol
Abstract Globally, Indigenous peoples and local communities (IPs and LCs) are fighting for the recognition of their knowledge and decision‐making authority in freshwater conservation. In the Amazon, decision‐making around freshwater management and conservation has often overlooked Indigenous and local knowledge (ILK) and the connections between ...
Athayde S, Utsunomiya R, Victoria-Lacy L, Beveridge C, Jenkins CN, Laufer J, Heilpern S, Olivas P, Anderson EP.   +8 more
europepmc   +2 more sources

Total Mercury Content in the Tissues of Freshwater Chelonium (Podocnemis expansa) and a Human Health Risk Assessment for the Amazon Population in Brazil. [PDF]

Int J Environ Res Public Health, 2023
Targino FJ, Ribeiro JDN, Simões JS, Carneiro CS, Lazzarini SM, Souza AR, Ferreira MDS, Mano SB, Mársico ET.   +8 more
europepmc   +3 more sources

Population Structure ofPodocnemis expansa(Testudines: Podocnemididae) in Southern Brazilian Amazon

Copeia, 2014
Detailed studies of the population structure of most species of turtles in the Amazon Basin are lacking throughout their range. We estimated sex ratio, size structure, relative abundance, and recapture index for the Giant South American River Turtle (Podocnemis expansa) in Javaes River, southern Brazilian Amazon.
Thiago Costa Gonçalves Portelinha, Adriana Malvásio, Carlos I. Piña, Jaime Bertoluci   +3 more
openalex   +4 more sources

Multiple paternity in side‐neck turtlesPodocnemis expansa: evidence from microsatellite DNA data [PDF]

Molecular Ecology, 2000
AbstractMultiple paternity was found in two clutches ofPodocnemis expansausing eight microsatellite loci. When loci were analysed separately a minimum of two males was estimated for nest N23, and three for nest C17. When all loci were combined, three patrilines were detected in N23, and six in C17. The distribution of full‐sib cluster sizes indicated a
Nicole Valenzuela
openalex   +3 more sources

ALIMENTAÇÃO DE TRACAJÁ (Podocnemis unifilis), IAÇÁ (Podocnemis sextuberculata) E TARTARUGA-DA-AMAZÔNIA (Podocnemis expansa) NO RIO JURUÁ, AMAZONAS

, 2012
Jânderson Rocha Garcez, Andrade, Paulo Cesar Machado, Soares, Maria Gercília Mota   +2 more
openalex   +3 more sources

Temperature-sex determination in Podocnemis expansa (Testudines, Podocnemididae) [PDF]

Iheringia. Série Zoologia, 2011
This study has been carried out at the central region of the Araguaia river on the border between the states of Goiás and Mato Grosso in the Brazilian Amazon Basin from September to December 2000. We recorded temperature fluctuation, clutch-size, incubation period and hatching success rate and hatchlings' sex ratio of five nests of Podocnemis expansa ...
Bonach, Kelly, Malvasio, Adriana, Matushima, Eliana R., Verdade, Luciano M.   +3 more
openaire   +4 more sources

Transferrin polymorphism in Amazon turtle (Podocnemis expansa) stocks [PDF]

Brazilian Journal of Genetics, 1996
The transferrin gene locus (Tf) was investigated in five populations of the Amazon turtle (Podocnemis expansa) sampled from five geographical areas in the Amazon region. This locus was polymorphic, showing three genotypes (Tfa Tfa, Tfa Tfb and Tfb Tfb), presumably encoded by two co-dominant alleles, Tfa and Tfb.
Teixeira, Aylton Saturnino, Jamieson, Alan, Raposo, José Carlos Paula, Vieira, Alvaro Alves   +3 more
openaire   +4 more sources

A systematic compendium of turtle mandibular anatomy using digital dissections of soft tissue and osteology

The Anatomical Record, Volume 306, Issue 6, Page 1228-1303, June 2023., 2023
Abstract Turtles are a charismatic reptile group with a peculiar body plan, which most notably includes the shell. Anatomists have often focused descriptive efforts on the shell and other strongly derived body parts, such as the akinetic skull, or the cervical vertebrae.
Serjoscha W. Evers, Jasper Ponstein, Maren A. Jansen, Jaimi A. Gray, Jörg Fröbisch   +4 more
wiley   +1 more source

Osteohistological characterization of notosuchian osteoderms: Evidence for an overlying thick leathery layer of skin

Journal of Morphology, Volume 284, Issue 1, January 2023., 2023
The perpendicular insertion of Sharpey's fibers in the external cortex suggests the presence of a thick leathery skin layer overlying notosuchian osteoderms. Although intramembranous ossification is the main process involved in the development of crocodyliform osteoderms, we reported a case of metaplastic development.
Mariana Valéria de Araújo Sena, Thiago da Silva Marinho, Felipe Chinaglia Montefeltro, Max Cardoso Langer, Thiago Schineider Fachini, William Roberto Nava, André Eduardo Piacentini Pinheiro, Esaú Victor de Araújo, Paul Aubier, Rafael César Lima Pedroso de Andrade, Juliana Manso Sayão, Gustavo Ribeiro de Oliveira, Jorge Cubo   +12 more
wiley   +1 more source

Identifying the current and future status of freshwater connectivity corridors in the Amazon Basin

Conservation Science and Practice, Volume 5, Issue 1, January 2023., 2023
Freshwater connectivity corridors of the Amazon Basin are critical to maintain river services and biodiversity. Among rivers >500 km in length, there are currently 93 freshwater connectivity corridors (FCCs) that are either free‐flowing or of good connectivity status; one‐fifth of these FCCs would lose their free‐flowing status with buildout of ...
Bernardo Caldas, Michele L. Thieme, Natalie Shahbol, Maria E. Coelho, Guenther Grill, Paul A. Van Damme, Ricardo Aranha, Carlos Cañas, Camila K. Fagundes, Nicole Franco‐León, Edgar E. Herrera‐Collazos, Céline Jézéquel, Mariana Montoya, Frederico Mosquera‐Guerra, Marcelo Oliveira‐da‐Costa, Mariana Paschoalini, Paulo Petry, Thierry Oberdorff, Fernando Trujillo, Pablo A. Tedesco, Mauro César Lambert de Brito Ribeiro   +20 more
wiley   +1 more source