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Shorea foxworthyi 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Theales Dipterocarpaceae

Scientific Name: Shorea foxworthyi Symington

Assessment Information [top]

Red List Category & Criteria: Vulnerable A2c ver 3.1
Year Published: 2017
Date Assessed: 2017-03-07
Assessor(s): Barstow, M.
Reviewer(s): Chua, L.S.L.
Facilitator/Compiler(s): Rivers, M.C.
Justification:
Shorea foxworthyi is a large tree species. It is found in the mixed dipteorcarp forests of Borneo, Peninsular Malaysia, Thailand and Indonesia. The species is considered uncommon across much of its range and within Malaysia fewer than 2,500 stems are found in protected areas. The species is found within countries with high rates of deforestation and within Sabah 54.6% of the species native habitat has been lost. Habitat decline is likely to be indicative of population decline across the species range; we therefore estimate that over the last three generations the Shorea foxworthyi population has declined by between 30 and 49%. The species is globally assessed as Vulnerable. It is recommended that further information on population decline is gathered and there is further investigation into the threats of habitat loss and over exploitation. Also, ex situ collections of this species should be made as it is so far unreported from any.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is native to south east Asia. It is found in Sumatra, Peninsular Malaysia, Thailand and Borneo. On Borneo the species is found in Sabah, Sarawak, Kalimantan and Brunei Darussalam. The species is found up to 700 m asl and has an estimated extent of occurrence (EOO) of 1,161,488 km2.
Countries occurrence:
Native:
Brunei Darussalam; Indonesia (Kalimantan, Sumatera); Malaysia (Peninsular Malaysia, Sabah, Sarawak); Thailand
Additional data:
Upper elevation limit (metres):700
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:There are an estimated 23,000 adult stems of the species within Malaysian Permanent Reserved Forests (Chua et al. 2010) but within Thailand the species is only found within the extreme south east. In Sabah and Sarawak the species is considered uncommon (Ashton 2004). Within Sabah specifically there has been an estimated loss of  54.6% of the species native habitat (Govindasamy 2014). The rate of habitat decline is likely to be reflective of population decline within Sabah especially if forest is being cleared for large scale agricultural expansion and/or slash and burn agriculture. According to Global Forest Watch the species is found within countries with a high rate of forest cover loss (World Resources Institute 2017) it is therefore probable that the rate of decline within Sabah is equivalent to decline across the species entire range due to the threat of deforestation experienced. Overall it is estimated that Shorea foxworthyi populations have declined by between 30 and 49% over the last three generations (150 years) having taken habitat loss estimates in Sabah as proxy for species decline across the species range.
Current Population Trend:Decreasing
Additional data:

Habitat and Ecology [top]

Habitat and Ecology:This large tree species can grow to 60 m in height (Ashton 2004). It grows within mixed dipterocarp, lowland or hill forests (Chua et al 2010, Ashton 2004). It is found on clay or sandy, clay soils (Ashton 2004). The species' habitat is currently threatened.
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes
Generation Length (years):50

Use and Trade [top]

Use and Trade: This species is used for its timber (Mark et al. 2014). No further uses of this species are known.

Threats [top]

Major Threat(s): This species is threatened by loss of its native habitat and forest clearance for the expansion of agriculture. The species is also likely to be threatened by logging for the timber trade though this is not reported in the literature.

Conservation Actions [top]

Conservation Actions: This species is not reported from any ex situ collections (BGCI 2017). It is essential that ex situ collections of this species are made which representative of the species entire range. The species is found within protected areas within Malaysia (Chua et al. 2010). Within Peninsular Malaysia the species is assessed as Vulnerable due to predicted future decline in area of occurrence and extent of occupancy. The species is considered Near Threatened within Sabah and Sarawak (Chua et al. 2010). It is recommended that the remaining species habitat be subject to protection. Species decline and harvest should also be monitored and managed. Research needs to be conducted to better estimate rate of population and habitat decline to enable the correct threat classification of this species and to better informed conservation decisions.

Citation: Barstow, M. 2017. Shorea foxworthyi. The IUCN Red List of Threatened Species 2017: e.T31970A2807974. . Downloaded on 17 December 2017.
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