Dacrydium gracile 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Pinopsida Pinales Podocarpaceae

Scientific Name: Dacrydium gracile de Laub.
Dacrydium gracilis de Laub. [orth. error]
Taxonomic Source(s): Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.
Taxonomic Notes: Was originally listed as D. gracilis. A. Farjon (in litt.) says that de Laubenfels spelled it wrongly, it has to have a feminine ending.

Assessment Information [top]

Red List Category & Criteria: Near Threatened ver 3.1
Year Published: 2013
Date Assessed: 2011-09-09
Assessor(s): Farjon, A.
Reviewer(s): Thomas, P. & Mill, R.
Dacrydium gracile is a large tree with a distribution which appears to be highly localized within a narrow altitudinal range on Mt. Kinabalu, the Crocker range and adjacent parts of Sarawak. It is an integral part of the lower montane oak-laurel forest. Trees are hard to distinguish from other Dacrydium species and so are likely to be cut wherever accessible for construction timber. Populations on Mt. Kinabalu are almost entirely contained within the national park and so are relatively well protected. The proportion of the total population within the protected area is uncertain. Outside of the national park it occurs in forest types that have been or are vulnerable to logging but the impact on the number of individuals and area of occupancy is uncertain. Although the known area of occupancy is well within the thresholds for Endangered under criterion B, uncertainty about the number of locations and the extent of decline indicate an assessment of Near Threatened (it almost qualifies for a threatened listing under criterion B2ab(iii and/or v) rather than Endangered.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Endemic to Malaysian Borneo: Sabah (Mt. Kinabalu and vicinity), one locality in Sarawak known.
Countries occurrence:
Malaysia (Sabah, Sarawak)
Additional data:
Estimated area of occupancy (AOO) - km2:20
Number of Locations:3
Lower elevation limit (metres):950
Upper elevation limit (metres):1800
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is rare and scattered in lower montane rainforest dominated by angiosperms in most localities. There may be more trees in other localities not yet discovered.
Current Population Trend:Unknown
Additional data:
Continuing decline of mature individuals:Unknown
Population severely fragmented:Unknown

Habitat and Ecology [top]

Habitat and Ecology:Dacrydium gracile is a tree occurring scattered in lower montane rainforest (950-1,800 m asl). It is usually associated with the conifers Agathis borneeensis, Podocarpus laubenfelsii, Sundacarpus amarus, Falcatifolium falciforme, Nageia wallichiana, and Dacrycarpus imbricatus on soils poor in nutrients ('kerangas' forest); in Sarawak it occurs in low canopy 'heath' forest on sandstone.
Continuing decline in area, extent and/or quality of habitat:Unknown
Generation Length (years):40

Use and Trade [top]

Use and Trade: No uses have been recorded of this species; it is assumed to be of value for its timber like other species in the genus that grow into tall forest trees. Its protected status within Mt. Kinabalu National Park makes exploitation at least of these trees unlikely; outside this protected area it may be logged.

Threats [top]

Major Threat(s): This species is quite rare and occurs as individual trees in primary forest. Most herbarium collections are from Mt. Kinabalu and vicinity (partly in Mt. Kinabalu National Park) and the disjunct locality in Sarawak (in a different habitat) could indicate that it is more widespread than currently known. With the present knowledge its area of occupancy (AOO) is certainly less than 20 km² but the total number of mature individuals is unknown. Outside of the protected areas it is probably vulnerable to logging.

Conservation Actions [top]

Conservation Actions: A substantial part of the population is located within Mount Kinabalu National Park.

Citation: Farjon, A. 2013. Dacrydium gracile. The IUCN Red List of Threatened Species 2013: e.T40742A2933253. . Downloaded on 24 June 2018.
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