Tate's fat-tailed pouch rat

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Tate's fat-tailed pouch rat
Systematics
Class : Mammals (mammalia)
Subclass : Marsupials (Marsupialia)
Order : Opossum-like (Didelphimorphia)
Family : Opossum rats (Didelphidae)
Genre : Fat- tailed pouch rats ( Thylamys )
Type : Tate's fat-tailed pouch rat
Scientific name
Thylamys file
( Handley , 1957)

Tate's fat- tailed rat ( Thylamys tatei ) occurs in Peru in the Ancash region and in the vicinity of Lima .

description

The animals reach a head trunk length of 10.9 to 12.3 cm, have a 11.8 to 13.2 cm long tail and reach a weight of 16 to 54 g. The tail is usually 110% of the length of the head and, in its function as a fat store, can reach a diameter of 8 mm. The fur on the back and the top of the head are slate gray, the sides of the body lighter gray with a cinnamon-colored touch. As usual with fat-tailed rats, the hair is banded with three different color zones. The fur is relatively long, 12 mm on the back and 8 mm on the belly. The peritoneum is gray with a whitish central stripe. The eyes are surrounded by conspicuous black rings, which extend with an 8 mm long tail towards the nose and 8 mm back to the ears. The ears are long and wide and dark gray in color. Front and rear paws are small and whitish. The females do not have a pouch. The number of teats is unknown. The karyotype of Tates fat-tailed pouch rat is unknown.

Habitat and way of life

Tates fat-tailed rat occurs on the western slopes of the Andes at altitudes of 300 to 3000 meters. The area is dry and includes lomas , deserts and bushy mountain slopes. So far, no information is available about their diet, their activity patterns and their reproductive behavior.

Systematics

The author of the first description of Tate's fat-tailed rat is the American zoologist Charles O. Handley , who described it in 1957 under the name Marmosa tatei and named Tate in honor of the American zoologist George Henry Hamilton . Today the species is placed in the genus of the fat- tailed pouch rats ( Thylamys ). Within the genus Thylamys , Tates fat- tailed-pouch rat forms a clade (Andean clade) of closely related species together with a previously undescribed taxon , the elegant fat- tailed-pouch rat ( Thylamys elegans ) and the pale fat- tailed-pouch rat ( Thylamys pallidior ) .

status

The IUCN does not provide any information about a possible endangerment of Tates fat-tailed rat because too little data is available. However, their range is small, densely populated by humans, and large parts of the habitat have been converted to arable land. In the distribution area there is a protected area with the Lomas de Lachay Reserva Nacional.

supporting documents

  1. a b c d e f 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 177.
  2. R. Eduardo Palma, Dusan Boric Bargetto, Pablo Jayat, David A. Flores et a .: Molecular phylogenetics of mouse opossums: new findings on the phylogeny of Thylamys (Didelphimorphia, Didelphidae).  Zoologica Scripta 43 (3): 217-234 January 2014, PDF
  3. Thylamys tatei in the endangered Red List species the IUCN 2016 Posted by: Solari, S., 2015. Accessed March 15, 2020th