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Description |
Geographic Range [top]
Range Description:
A Bornean species recorded from Indonesia (Kalimantan Timur) and Malaysia (Sabah, Sarawak). This species is known from seven localities. In addition to those mapped in Flora Malesiana, ser. 1, 10 (3): 437, f. 78 ( De Laubenfels 1988) there are two in Kalimantan Timur. Of the three dots on the map in that publication for central Sarawak, only one could be confirmed with a herbarium collection: Julan ["Usan Apau"] coll. G.H. Pickles 3929 at Leiden (det. D.J. de Laubenfels).
Countries occurrence:
Native:
Indonesia (Kalimantan); Malaysia (Sabah, Sarawak)
Additional data:
? Estimated area of occupancy (AOO) - km2: 175
? Number of Locations: 4-5
? Lower elevation limit (metres): 450
? Upper elevation limit (metres): 1050
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: Logging has had a negative impact on the number of mature individuals because it occurs at a rate well beyond natural regrowth. Uncut stands are still being targeted where not inside a protected area.
Current Population Trend: Decreasing
Additional data:
? Continuing decline of mature individuals: Yes
Habitat and Ecology [top]
Habitat and Ecology: Agathis orbicula occurs at lower altitudes than A. lenticula in evergreen tropical rainforest and high kerangas. Recorded from 450 up to 1,050 m a.s.l.
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes
Generation Length (years): 80
Use and Trade [top]
Use and Trade: Agathis orbicula is a timber tree producing valuable wood. Loggers rarely if ever distinguish this species from other Agathis species (e.g. A. borneensis) that occur in the same general area.
Threats [top]
Major Threat(s): Exploitation of all tall trees of Agathis in Borneo has been intensive and is still ongoing. As a consequence, we can infer a decline even though this species is not distinguished by foresters or loggers from the more widespread species A. borneensis.
Conservation Actions [top]
Conservation Actions: Two localities on the map based on herbarium collections appear to be in protected areas: Maligan in Sabah and Usun Apau in Sarawak.
Citation: Farjon, A. 2013. Agathis orbicula. The IUCN Red List of Threatened Species 2013: e.T31865A2807919. http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T31865A2807919.en. Downloaded on 24 September 2018.
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