Spermophilus nilkaensis, Hou & Wang, 1989

Don E. Wilson, Thomas E. Lacher, Jr & Russell A. Mittermeier, 2016, Sciuridae, Handbook of the Mammals of the World – Volume 6 Lagomorphs and Rodents I, Barcelona: Lynx Edicions, pp. 648-837 : 814

publication ID

https://doi.org/ 10.5281/zenodo.6840226

DOI

https://doi.org/10.5281/zenodo.6819016

persistent identifier

https://treatment.plazi.org/id/064D0660-FFA7-ED5A-FA1C-F9A6F588FB48

treatment provided by

Diego

scientific name

Spermophilus nilkaensis
status

 

237. View Plate 55: Sciuridae

Tian Shan Ground Squirrel

Spermophilus nilkaensis

French: Spermophile de Rall / German: Ostliches Tienschan-Ziesel / Spanish: Ardila terrestre de Tien Shan

Taxonomy. Spermophilus nilkaensis Hou & Wang, 1989 ,

“5 km east of a village Zhaikou, altitude 1500 m,”

Nileke District, Xin-

Jiang, China.

Spermophilus nilkaensis was long considered

a subspecies of S. relictus, but recent ge-

netic evidence caused it to be elevated to the species level. Commonly referred to as S. ralli, named by B. A. Kuznetsov in 1948, but this name is preoccupied by Citellus pygmaeus ralli, named by V. G. Heptner in 1948, so the name nilkaensis has been proposed to replace ralli. Monotypic.

Distribution. E Tian Shan Mts of SE Kazakhstan, NE Kyrgyzstan, and W China (W Xinjiang). View Figure

Descriptive notes. Head—body 200-240 mm, tail 60-75 mm; weight 290-405 g. Dorsal pelage of the Tian Shan Ground Squirrel ranges from grayish brown to grayish yellow; sides are lighter, grading to straw gray on venter. Faint spots on dorsum can be hard to detect. Tail is yellow to light rust, with dark brown-to-black band and white-to-yellow tip.

Habitat. Meadows.

Food and Feeding. Diet of the Tian Shan Ground Squirrel consists of grasses, forbs, and insects.

Breeding. Mating occurs after emergence in late winter or spring. Litters of 3-7 young are born in burrows after gestation of 25-27 days.

Activity patterns. Tian Shan Ground Squirrels are diurnal. They hibernate in burrows from late summer (August-September) until late winter (February-March).

Movements, Home range and Social organization. Many burrow openings are clustered together, with a hibernation chamber 1-2 m belowground. Tian Shan Ground Squirrels can be seen calling at burrow entrances, and call is described as quiet squeak.

Status and Conservation. Classified as Least Concern on The IUCN Red List. Current population trend of the Tian Shan Ground Squirrel is unknown. It is present in Xueling Yunshan Nature Reserve in China and might be present in other protected areas. Major threats have not been identified, but it is harvested for food. Additional studies are warranted to better understand its abundance and natural history.

Bibliography. Harrison et al. (2003), Heptner (1948), Hou & Wang (1989), Krystufek & Vohralik (2012), Kuznetsov (1948), Ognev (1963), Pavlinov & Rossolimo (1987), Smith & Yan Xie (2008), Thorington et al. (2012).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Sciuridae

Genus

Spermophilus

Loc

Spermophilus nilkaensis

Don E. Wilson, Thomas E. Lacher, Jr & Russell A. Mittermeier 2016
2016
Loc

Spermophilus nilkaensis

Hou & Wang 1989
1989
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