Overview

Distribution

Range Description

This species is found on Peleng Island (Sody 1949), off the coast of the eastern peninsula of Sulawesi. There are unconfirmed reports that tarsiers might be present in other islands of the nearby Banggai Archipelago, and if these reports are accurate, then this would extend the range of T. pelengensis.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is believed to inhabit primary and secondary lowland and mangrove forest (to 520 m) (M. Indrawan and Y. Masala pers. comm.). Like all tarsiers it shows extreme adaptations for vertical clinging and leaping (VCL) in the understory of suitable tropical habitats, often 2 meters or less from the ground. Nocturnal, social primates, they are likely to live in small, monogamous or polygamous groupings of 2-6. Their diet is 100% live animal prey, mostly insects with some small vertebrates.

Systems
  • Terrestrial
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
EN
Endangered

Red List Criteria
B1ab(iii)

Version
3.1

Year Assessed
2008

Assessor/s
Shekelle, M., Salim, A., Groves, C.P. & Indrawan, M.

Reviewer/s
Mittermeier, R.A. & Rylands, A.B. (Primate Red List Authority)

Contributor/s

Justification
This species is considered Endangered as the species is known to occur only on Peleng island. Over this range it occurs in a number of fragmented populations, and a there is believed to be a continued decline in extent and quality of its habitat, and its extent of occurrence is less that 5,000 km².

History
  • 2000
    Data Deficient
  • 1996
    Data Deficient
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Population

Population
This taxon has not been studied in the wild. By analogy with other taxa of eastern tarsiers, we can estimate that densities in good habitat might be 156/km2 (Gursky 1997), or, as for T. dentatus (Merker 2003) up to 270/km2 in pristine habitat, 190/km2 for slightly disturbed, 130/km2 for moderate disturbance, and 45/km2 in heavily disturbed habitat.

Population Trend
Decreasing
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Threats

Major Threats
GIS estimates indicate that only 211 km2 of “good” habitat remains on Peleng Island (2,339 km2). This implies that perhaps as little as 9% of the original habitat of the island remains in good condition. Therefore it seems likely that, while we know little about this species, habitat loss through slash and burn activities is a major threat. On the other hand, it is not clear that “good” habitat is also compatible with the needs of tarsier conservation. All species of tarsiers that have been studied in the wild are recorded in a number of non-forest habitats, but it remains an open question as to whether these habitats are suitable for sustainably-reproducing populations. GIS also provides an estimate of 1,474 km2 of “fair” habitat remaining on Pulau Peleng. Together with “good” habitat, this yields a total of 1,685 km2 of habitat that is potentially suitable for tarsier conservation, a figure that represents slightly more than 72% of the island’s total area. In other words, the estimate of the percentage of the original tarsier habitat that still remains on Pulau Peleng varies from 9 to 72%, depending on whether “fair” habitat is included in the model. This example illustrates the need for field surveys to determine the suitability of “fair” habitat for sustainable tarsier populations. In the meantime, we use a most conservative estimate that includes good habitat only.

First-hand reports of conditions on Pulau Peleng are scant, but by analogy with other areas of Sulawesi, it should likely expect a continuing pattern of encroachment into tarsier habitat, leading to a decrease in the area of occupancy, quality of habitat, number of tarsier populations and mature individuals (M. Shekelle pers. comm.). Other threats may include illegal logging, agricultural pesticides, and predation by domestic animals (dogs and cats).
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Management

Conservation Actions

Conservation Actions
There are no decreed protection areas on Pulau Peleng. The species is listed in CITES Appendix II.
Creative Commons Attribution Non Commercial Share Alike 3.0 (CC BY-NC-SA 3.0)

© International Union for Conservation of Nature and Natural Resources

Source: IUCN

Trusted

Article rating from 0 people

Average rating: 2.5 of 5

Wikipedia

Peleng tarsier

The Peleng tarsier (Tarsius pelengensis), or the Peleng Island tarsier, is a nocturnal primate found on Peleng Island, Indonesia. This tarsier can turn is head 180 degrees, much like an owl, because its eyes are fixed in their sockets.

References

  1. ^ Groves, C. P. (2005). In Wilson, D. E.; Reeder, D. M. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 127–128. OCLC 62265494. ISBN 0-801-88221-4. 
  2. ^ Shekelle, M., Salim, A., Groves, C. P. & Indrawan, M. (2008). Tarsius pelengensis. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 1 January 2009.
Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

Unreviewed

Article rating from 0 people

Average rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!