Bolivian narrow-pouch rat

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Bolivian narrow-pouch rat
Systematics
Class : Mammals (mammalia)
Subclass : Marsupials (Marsupialia)
Order : Opossum-like (Didelphimorphia)
Family : Opossum rats (Didelphidae)
Genre : Gracilinanus
Type : Bolivian narrow-pouch rat
Scientific name
Gracilinanus aceramarcae
( Tate , 1931)

The Bolivian narrow-pouch rat ( Gracilinanus aceramarcae ) occurs in the southeast of Peru in the regions of Cusco and Puno and in western Bolivia in the vicinity of La Paz .

description

The animals reach a head trunk length of 8.3 to 10.3 cm and have a 11.2 to 14.5 cm long tail and reach a weight of 18.5 to 23 g. The tail is usually 150% of the length of the head. A sexual dimorphism is not on the total size of the animals in the size of the skull. The back and sides of the body are solid red-brown. The peritoneum is cream-colored with a reddish tinge. The fur is long. The head is the same color as the back. The eyes are surrounded by narrow dark rings. The ears are small and dark. The small front and rear paws are cream-colored or whitish. The outsides of the legs are reddish brown. The tail is dark in color. Females do not have a pouch. The number of teats is unknown. The karyotype of the Bolivian narrow-pouch rat is unknown.

Habitat and way of life

The Bolivian lean-pouch rat occurs in mountain rainforests at altitudes of 2500 to 3350 meters. The few specimens caught so far were caught on the ground under bushes or in shrubs or climbing plants up to heights of two meters. So far, no information is available about their diet, their activity patterns and their reproductive behavior.

status

The IUCN assessed the endangered status of the Bolivian narrow-pouch rat in 1996 as critically endangered , as only a few specimens had been found and the range is relatively small. In the meantime, however, it is assumed that the population size is relatively large and since the habitat of the opossum is not severely affected by human activities and the animals are probably also found in protected areas, the species has been regarded as safe since 2008 ( Least Concern ).

supporting documents

  1. a b c d Diego Astúa: Family Didelphidae (Opossums). in Don E. Wilson , Russell A. Mittermeier : Handbook of the Mammals of the World - Volume 5. Monotremes and Marsupials. Lynx Editions, 2015, ISBN 978-84-96553-99-6 . Page 170.
  2. gracilinanus aceramarcae in the Red List of Threatened Species of the IUCN 2016. Posted by: Solari, S. & Tarifa, T., 2015. Accessed January 25, 2020th