28 Works

Phylogeny and biogeographic history of the Chiropotes (Pitheciidae, Platyrrhini)

Jeferson Carneiro, Iracilda Sampaio, Jose De Sousa E Silva Junior, Antonio Martins-Junior, Izeni Farias, Tomas Hrbek, Jean Boubli & Horacio Schneider
Pitheciidae is a New Word primate family composed of two subfamilies (Callicebinae and Pitheciinae). The three extant pitheciine genera, Pithecia, Cacajao and Chiropotes are all endemic to the Amazon region. Because of the uncertainties about intraspecific relationships, we reviewed the systematics and taxonomy of the genus Chiropotes. The phylogenetic analyses were performed based on Maximum Likelihood and Bayesian Inference, while species delimitation analyses were carried out using multispecies coalescent methods. In addition, we estimated genetic...

Modelling the distribution of Amazonian tree species in response to long-term climate change during the mid-late Holocene

Vitor Gomes, Francis Mayle, William Gosling, Ima Vieira, Rafael Salomão & Hans Ter Steege
Aim: To (a) assess the environmental suitability for rainforest tree species of Moraceae and Urticaceae across Amazonia during the Mid-Late Holocene and (b) determine the extent to which their distributions increased in response to long-term climate change over this period. Location: Amazonia. Methods: We used MaxEnt and inverse distance weighting interpolation to produce environmental suitability and relative abundance models at 0.5-degree resolution for tree species of Moraceae and Urticaceae, based on natural history collections and...

Museomics of tree squirrels: a dense taxon sampling of mitogenomes reveals hidden diversity, phenotypic convergence, and the need of a taxonomic overhaul

Edson F. Abreu-Jr, Silvia E. Pavan, Mirian T. N. Tsuchiya, Don E. Wilson, Alexandre Reis Percequillo & Jesus E. Maldonado
Background: Tree squirrels (Sciuridae, Sciurini), in particular the highly diverse Neotropical lineages, are amongst the most rapidly diversifying branches of the mammal tree of life but also some of the least known. Negligence of this group by phylogeneticists is likely a product of the scarcity or unavailability of fresh tissue samples for DNA sequencing. Lack of comprehensive phylogenies result in highly discrepant taxonomic arrangements that are based exclusively on morphological data—impressively, these are the only...

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