Marsupials and rodents (Didelphimorphia and Rodentia) of upper Rio Acre, with new data on Oxymycterus inca Thomas, 1900 from Brazil

By

Abreu-Júnior, Edson F.
De Freitas, Marco A.
Lapenta, Marina Janzantti
Venâncio, Nathocley M.
De França, Daniella P. F.
Percequillo, Alexandre Reis

Type

Article

Date of Publication

2016-9-10

Original Publication

Check list : journal of species lists and distribution

Volume

12

Series / Issue

Issue: 5

Pages

1956--16

Subjects

Acre State , Amazon Forest , distribution extensions , mammal inventory

Contributed by

Pensoft Publishers

Language

English

Published by

[São Paulo, Brazil] Luís Felipe Toledo 2005-

Identifiers

DOI: https://doi.org/10.15560/12.5.1956

 

Abstract

Our goal was to inventory marsupial and rodent species from two conservation units (Reserva Extrativista Chico Mendes and Estação Ecológica do Rio Acre) of the upper Rio Acre, in Brazilian Amazonia, as well as to provide new data on the morphology and geographic distribution for several species. We recorded 25 species, including seven marsupials and 18 rodents. Among these, there are poorly sampled species in Brazil, such as Marmosa regina and Dactylomys boliviensis. We document range extensions (about 450 km towards southeastern Acre state) of Neacomys musseri, Dasyprocta fuliginosa, and Proechimys cuvieri. We also present the first confirmed record of an undescribed species of Monodelphis in Acre state and the second collecting record of Oxymycterus inca in Brazil. We describe the morphology and morphometrics of upper Rio Acre specimens of O. inca. Finally, we compare our results with other inventories in the Amazon region and discuss the high efficiency of pitfall traps for capturing nonvolant small mammals.