4 documents found, page 1 of 1
Phylogeography and demographic history of the neotropical otter (Lontra longica...
Trinca, Cristine Silveira; Thoisy, Benoît de; Weber Rosas, Fernando Cesar; Waldemarin, Helen Francine; Koepfli, Klaus Peter; Vianna, Juliana A.The Neotropical otter (Lontra longicaudis) is a medium-sized semiaquatic carnivore with a broad distribution in the Neotropical region. Despite being apparently common in many areas, it is one of the least known otters, and genetic studies on this species are scarce. Here, we have investigated its genetic diversity, population structure, and demographic history across a large portion of its geographic range by ...
Molar polymorphism and variation in tooth number in a semi-aquatic rodent, neus...
Catzeflis, François; Thoisy, Benoît de; Silva, Maria Nazareth Ferreira da; R., Silva, Claudia
Evidence of cryptic lineages within a small South American crocodilian: The Sch...
Bittencourt, Pedro Senna; Campos, Zilca M.S.; Lima Muniz, Fábio de; Marioni, Boris; Souza, Bruno Campos; Silveira, Ronis da; Thoisy, Benoît deSchneider's dwarf caiman Paleosuchus trigonatus is one of the smallest living crocodilians. Due to its broad distribution, cryptic behavior, and small home range, the species is well suited for the study of phylogeographic patterns on a continental scale. Additionally, this species is under threat due to habitat loss, trade and harvest, but is considered at low conservation risk by the IUCN. In the present stud...
The role of Pleistocene climate change in the genetic variability, distribution...
Silva, Cláudia Regina; Ribas, Camila Cherem; Silva, Maria Nazareth Ferreira da; Leite, Rafael N.; Catzeflis, François M.; Rogers, Duke S.The spiny rats, genus Proechimys, have the highest species richness within the Echimyidae family, as well as species with high genetic variability. The genus distribution includes tropical South America and Central America south to Honduras. In this study, we evaluate the phylogeographic histories of Proechimys guyannensis and P. cuvieri using cytochrome b, in a densely sampled area in northeastern Amazon where...