Tupaia Discolor, Bangkan Treeshrew

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Tupaia discolor. The IUCN Red List of Threatened Species 2019: e.T111873499A111873502

Technical Report · March 2019

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Tupaia discolor, Bangkan Treeshrew

Assessment by: Sargis, E., Kennerley, R.

View on www.iucnredlist.org

Citation: Sargis, E., Kennerley, R. 2019. Tupaia discolor. The IUCN Red List of Threatened Species 2019: e.T111873499A111873502. http://dx.doi.org/10.2305/IUCN.UK.2019- 1.RLTS.T111873499A111873502.en

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THE IUCN RED LIST OF THREATENED SPECIES™ Taxonomy

Kingdom Phylum Class Order Family

Animalia Chordata Mammalia Scandentia Tupaiidae

Taxon Name: Tupaia discolor (Lyon, 1906)

Common Name(s): • English: Bangkan Treeshrew Taxonomic Source(s): Sargis, E.J., Woodman, N., Reese, A.T. and Olson, L.E. 2013b. Using hand proportions to test taxonomic boundaries within the Tupaia glis species complex (Scandentia, Tupaiidae). Journal of Mammalogy 94: 183–201.

Taxonomic Notes: Described as Tupaia discolor Lyon, 1906, from Bangka Island off the east coast of Sumatra. The taxon was later synonymised with T. glis by Chasen (1940), and it has generally been considered a synonym of that species (Corbet and Hill 1992, Helgen 2005, Honacki et al. 1982, Wilson 1993). It has been recently resurrected as T. discolor from Bangka Island (Sargis et al. 2013). Assessment Information

Red List Category & Criteria: Data Deficient ver 3.1

Year Published: 2019

Date Assessed: June 9, 2017

Justification: This species is listed as Data Deficient, in view of the lack of information about its population, habitat requirements and the threats it faces on Bangka. Geographic Range

Range Description: This species is found on Bangka Island off the east coast of Sumatra, Indonesia (Sargis et al. 2013).

Country Occurrence: Native: Indonesia

© The IUCN Red List of Threatened Species: Tupaia discolor – published in 2019. 2 http://dx.doi.org/10.2305/IUCN.UK.2019-1.RLTS.T111873499A111873502.en Population There is no information about the population of this species. Current Population Trend: Unknown

Habitat and Ecology (see Appendix for additional information) There is no information about the habitat requirements and ecology of this species, however, the description of T. glis with which it was previously synoymised said that it was usually found in primary dipterocarp forest, thought tolerant to some degree of habitat modification, as it was recorded from secondary forest, plantations, fruit orchards and trees near housing areas (K. H. Han pers. comm. 2008).

Systems: Terrestrial

Threats (see Appendix for additional information) Extensive tin mining on Bangka Island has caused habitat disturbance, damage to natural drainage, and pollution (Nurtjahya et al. 2009). When this species was previously synonymised with T. glis the major threats to T. glis were listed as severe deforestation due to conversion for agriculture and plantations, and commercial logging, although the species can adapt to a degree of habitat modification. Conservation Actions It is not found in any protected areas. Credits

Assessor(s): Sargis, E., Kennerley, R.

Reviewer(s): Amori, G.

© The IUCN Red List of Threatened Species: Tupaia discolor – published in 2019. 3 http://dx.doi.org/10.2305/IUCN.UK.2019-1.RLTS.T111873499A111873502.en Bibliography Chasen, F.N. 1940. A handlist of Malaysian mammals. Bulletin of the Raffles Museum (Singapore) 15: 1- 209.

Corbet, G.B. and Hill, J.E. 1992. Mammals of the Indo-Malayan Region: a Systematic Review. Oxford University Press, Oxford, UK.

Helgen, K.M. 2005. Order Scandentia. In: D.E. Wilson and D.A. Reeder (eds), Mammal Species of the World: a Taxonomic and Geographic Reference, pp. 104-109. Johns Hopkins University Press, Baltimore, Maryland, USA.

Honacki, J.H., Kinman, K.E. and Koeppl, J.W. 1982. Mammal species of the world: A taxonomic and geographic reference. Allen Press.

IUCN. 2019. The IUCN Red List of Threatened Species. Version 2019-1. Available at: www.iucnredlist.org. (Accessed: 21 March 2019).

Nurtjahya, E., Setiadi, D., Guhardja, E., Muhadiono, and Setiadi, Y. 2009. Succession on tin-mined land in Bangka Island. Blumea 54: 131-139.

Sargis, E.J., Woodman, N., Reese, A.T. and Olson, L.E. 2013b. Using hand proportions to test taxonomic boundaries within the Tupaia glis species complex (Scandentia, Tupaiidae). Journal of Mammalogy 94: 183–201.

Wilson, D.E. 1993. Order Scandentia. In: D.E. Wilson and D.M. Reeder (eds), Mammal Species of the World: A taxonomic and geographic reference, pp. 131-133. Smithsonian Institution Press, Washington, DC, USA.

Citation Sargis, E., Kennerley, R. 2019. Tupaia discolor. The IUCN Red List of Threatened Species 2019: e.T111873499A111873502. http://dx.doi.org/10.2305/IUCN.UK.2019- 1.RLTS.T111873499A111873502.en

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External Resources For Images and External Links to Additional Information, please see the Red List website.

Habitats (http://www.iucnredlist.org/technical-documents/classification-schemes)

Major Season Suitability Habitat Importance? 0. Root -> 18. Unknown - Suitable -

Threats (http://www.iucnredlist.org/technical-documents/classification-schemes)

Threat Timing Scope Severity Impact Score 3. Energy production & mining -> 3.2. Mining & Ongoing Unknown Unknown Unknown quarrying

Research Needed (http://www.iucnredlist.org/technical-documents/classification-schemes)

Research Needed 1. Research -> 1.2. Population size, distribution & trends

1. Research -> 1.3. Life history & ecology

1. Research -> 1.5. Threats

© The IUCN Red List of Threatened Species: Tupaia discolor – published in 2019. 5 http://dx.doi.org/10.2305/IUCN.UK.2019-1.RLTS.T111873499A111873502.en The IUCN Red List of Threatened Species™ ISSN 2307-8235 (online) IUCN 2008: T111873499A111873502 Scope: Global Language: English

The IUCN Red List Partnership

The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership.

The IUCN Red List Partners are: Arizona State University; BirdLife International; Botanic Gardens Conservation International; Conservation International; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas A&M University; and Zoological Society of London.

THE IUCN RED LIST OF THREATENED SPECIES™

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