Thai National Parks

Species of Thailand

Northern treeshrew

Tupaia belangeri

(Johann Andreas Wagner, 1841)

The northern treeshrew (Tupaia belangeri) is a treeshrew species native to Southeast Asia.

In 1841, the German zoologist Johann Andreas Wagner first used the specific name Cladobates belangeri for treeshrews that had been collected in Pegu during a French expedition to Southeast Asia. These specimens were described by Isidore Geoffroy Saint-Hilaire in 1834 in whose opinion they did not differ sufficiently from Tupaia tana to assign a specific rank.

Characteristics

Results of a telemetry study involving northern treeshrews showed that their body temperature varies from 35 C F during the night to 40 C F during the day. This difference is larger than in other endotherms, and indicates that the circadian rhythms of body temperature and locomotor activity are synchronized.

Adults weigh 0.2 kg. The maximum longevity of the northern treeshrew is 11 years.

Besides humans, the northern treeshrew is the only mammal known to willingly consume spicy food. This is due to a genetic mutation rendering it much less sensitive to the effects of capsaicin.

Phylogeny

Complete mitochondrial genome data support the hypothesis of a closer phylogenetic relationship of Tupaia to rabbits than to primates. This is however disputed by the more recent full genome sequencing data that places the species closer to primates (divergence ~90.9 million years ago) than to lagomorphs and rodents (~96.4 Million years ago).

In medical research

The northern treeshrew has attained growing interest for use as a medical model. In 2002, an article was published describing that its primary hepatocytes could be used as a model for studying the Hepatitis C virus, which is a major cause of chronic hepatitis worldwide.

It was also used in studies on the development of photo reception, investigation of retinal cones, and refractive state and ocular component dimensions of the eye. Many studies have been conducted regarding eye structure, development, and vision using the northern treeshrew model because of the similarity to human eye structure and sight that is uncharacteristic of conventional small lab animals, such as rodents.

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Scientific classification

Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Scandentia
Family
Tupaiidae
Genus
Tupaia
Species
Tupaia belangeri

Common names

  • English: Chinese treeshrew

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Photos

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Tupaia belangeri - Kaeng Krachan National Park
Tupaia belangeri - Kaeng Krachan National Park
Tupaia belangeri - Bangkok
Tupaia belangeri - Bangkok

Range Map

Distribution map of Northern treeshrew, Tupaia belangeri in Thailand
  • Bangkok Province
  • Cha-Am District, Phetchaburi
  • Chiang Dao Wildlife Sanctuary
  • Doi Inthanon National Park
  • Doi Suthep - Pui National Park
  • Huai Kha Khaeng Wildlife Sanctuary
  • Kaeng Khoi District, Saraburi
  • Kaeng Krachan National Park
  • Khao Kho National Park
  • Khao Yai National Park
  • Kui Buri National Park
  • Mae Wong National Park
  • Mueang Phetchaburi District, Phetchaburi
  • Mueang Prachuap Khiri Khan District, Prachuap Khiri Khan
  • Pang Sida National Park
  • Phra Nakhon Si Ayutthaya District, Phra Nakhon Si Ayutthaya
  • Phu Khiao Wildlife Sanctuary
  • Phu Luang District, Loei
  • Phu Suan Sai National Park
  • San Kamphaeng District, Chiang Mai
  • Sawi District, Chumphon
  • Si Racha District, Chonburi
  • Tat Mok National Park
  • Tha Yang District, Phetchaburi
  • Thong Pha Phum District, Kanchanaburi
Range map of Tupaia belangeri in Thailand