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Legal classification    Location & access    Infrastructure    History & management    Settlements and adjacent land-use    Physical environment    Vegetation    Fauna    Research    Threats & constraints    Special attributes

Last updated: 22 Apr 2005

Survey carried out in August 2001.

Legal classification

Class I Protection Forest Reserve (FR)

AreaApprox. 7,509 ha.

 

Location & access

The Bukit Taviu FR is situated about 25 km west of Telupid town, traversed from west to east by the Ranau-Telupid Highway (see pic T14).

 

Infrastructure

None.

 

History & management

Creation—Bukit Taviu FR was previously in  the Trus Madi FR, which was gazetted as Class I FR in 14/3/1984. In 1992, the Trus Madi FR was partially degazetted and Bukit Taviu FR  was formed and gazetted as a Class I FR.

 

Management responsibility—Telupid District Forestry Office.

 

Boundary mattersThe FR boundary was demarcated in 2002. 

 

Management plan—None.

 

Current use—None.

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Settlements & adjacent land-use

There are small-scale oil palm estates in the west (see pics T9, T17). There is also a sawmill in the southwest (see pics T8).

 

Physical environment

Topography—The FR has very high hills with amplitudes up to 300 m and slopes often greater than 25° hill crests are often very narrow. The hills are formed of interbedded sandstone and mudstone.

 

Hydrology—There are no major rivers in the FR.

 

Soils—Mainly Lokan and Crocker Associations. The Lokan Association occurs in the middle of the FR while Crocker occurs on the north and south.

For a complete soil map, click here.

Meteorological data—The nearest met station is at Tampias, just a few kilometers  west of the FR, of which we do not have any analysed data. However, compare with the Merungin (north), Ranau (northwest), Batu Bajau (west) and Tongod (south).

Map of met. stations    Rainfall map

Vegetation

See current vegetation map here

See natural vegetation map here

See satellite image here

Bkt Taviu FR is largely made up of mixed dipterocarp forest. Species like Clethra sp., Schizotachyum sp., Illex cymosa, Adinandra excelsa are among the typical species of the Crocker Association. A thorough analysis of species composition in both soil associations was not carried out. Kapur merah (Dryobalanops beccarii) is found in the forest of lowland areas, especially on Lokan Association. 

 

About 34% of the FR is medium to good forest. These areas are mostly on the upland of the central portion or on the ridges in the lowland areas (see pics T6, T9, T10, T12, T17, T20, T21, T22). In the upland, species like Clethra sp, Schima wallichiana, S. wallichiana ssp. montana, Adinandra excelsa and A. clemensiae can be found. Seraya daun mas (Shorea argentifolia), melapi (Shorea agami), seraya langgai (Shorea beccariana) are among the common dipterocarp species on the upland.

 

Roughly 65 % of the FR is secondary, mostly near and around the boundaries in the low-lying areas (see pics T3, T7, T13, T18 &T23). Parts of the north and southeast were logged in the past (i.e. old logging tracks were seen) where climbing bamboo, other creepers, Schizostachyum sp. and Macaranga spp. are common (see pics T1, T4, T5). The regenerative potential of the secondary forest is good as there are still many mother trees within the FR.

 

  • Click here for a list of dipterocarps encountered during the field survey:

    • Anisoptera laevis

    • Dipterocarpus acutangulus

    • Dipterocarpus humeratus

    • Dipterocarpus tempehes

    • Dryobalanops beccarii

    • Hopea dryobalanoides

    • Hopea nervosa

    • Parashorea parvifolia

    • Shorea agami

    • Shorea angustifolia

    • Shorea argentifolia

    • Shorea atrinervosa

    • Shorea beccariana

    • Shorea confusa

    • Shorea flaviflora

    • Shorea foxworthii

    • Shorea hypoleuca

    • Shorea laevis

    • Shorea macrophylla

    • Shorea multiflora

    • Shorea parvifolia

    • Shorea pillosa

    • Shorea pinanga

    • Shorea platyclados

    • Shorea symingtonii

  • Click here for a list of the 10 most common tree species encountered during the field survey:

    • Canarium sp.

    • Dipterocarpus acutangulus

    • Dipterocarpus applanatus

    • Dipterocarpus tempehes

    • Dryobalanops beccarii

    • Lithocarpus gracilis

    • Lithocarpus nieuwenhusii

    • Shorea platyclados

    • Syzygium spp.

    • Vatica albiramis

    • Vatica dulitensis

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Fauna

An aerial survey was conducted in the FR (sometime 2002 and 2003). This was part of a statewide orang-utan census carried out by HUTAN (an NGO based in Sukau, Kinabatangan) and the Sabah Wildlife Department. Orang-utan population was 53.

 

 

Research

None.

 

Threats & constraints

Fire—There were no signs of recent burnt areas. Regenerating forests were observed in the north and southeast, possibly due to past fires and/or logging activities.

 

EncroachmentDuring the ground survey, there were signs of logging tracks and of logs extraction activities within the FR in the southwest and southeast (see pic T15). Barren area in the western part of the FR is for log stumping area (see pic T19). However, small-scale illegal logging activities remain the main threat to the FR.

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Special attributes

None.

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