Results 51 to 60 of about 316 (161)
The knowledge on natural history of some Brazilian chelonian species is still scarce what makes it difficult to ascertain ecological and evolutionary histories.
Franco L. Souza
doaj
Generation length of the world's amphibians and reptiles
Variation in life histories influences demographic processes, from adaptive changes to population declines leading to extinction. Among life history traits, generation length offers a critical feature to forecast species' demographic trajectories such as population declines (widely used by the IUCN Red List) and adaptability to environmental change ...
Giordano Mancini +8 more
wiley +1 more source
1. Data on Ecology, Behavior and Geographical Distribution of the chelid turtle, Phrynops (Batrachemys) dahli, are reported. 2. The original habitat of the "carranchina" or "cabeza al lado" consisted in ponds and small brooks within the forests, a ...
Medem Federico
doaj
Phallus eversion sexing in Phrynops geoffroanus (Testudines: Chelidae): a new non-invasive approach
The sexing of species is an important tool for population management. In tortoises and turtles, sexing is usually done according to secondary characteristics, such as plastron morphology or phallus eversion techniques.
M. S. C. S. Lima +8 more
doaj +1 more source
Reptilia, Chelidae, Acanthochelys macrocephala: distribution, habitat, and geographical distribution map [with erratum] [PDF]
None
Robson Ávila +3 more
doaj +3 more sources
On the Australasian Chelidae (Chelodina)
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources
Sexing freshwater turtles: penile eversion in Phrynops tuberosus (Testudines: Chelidae)
Here, we described a noninvasive method for sexing freshwater turtles by stimulating penile eversion. We immobilized the neck and limbs of animals using fingers and, after some seconds, turtles everted their penis.
João Rodrigues +2 more
doaj +1 more source
Abstract The humerus is central for locomotion in turtles as quadrupedal animals. Osteological variation across testudine clades remains poorly documented. Here, we systematically describe the humerus anatomy for all major extant turtle clades based on 38 species representing the phylogenetic and ecological diversity of crown turtles.
Guilherme Hermanson +3 more
wiley +1 more source
A new species of Mesoclemmys, from the open formations of northeastern Brazil (Chelonii, Chelidae)
A new species of South American side-necked turtle is described from the state of Piauí, Brazil. It is related to the Amazonian species of the genus Mesoclemmys s.l.
Roger Bour, Hussam Zaher
doaj +1 more source
Reptilia, Testudines, Chelidae, Acanthochelys macrocephala: distribution extension, geographic distribution map, and hatchling morphology [PDF]
None
Bruno Ferronato, Flavio Molina
doaj +3 more sources

