Anisoptera costata 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Theales Dipterocarpaceae

Scientific Name: Anisoptera costata Korth.
Anisoptera cochinchinensis Pierre
Anisoptera marginatoides F.Heim
Anisoptera oblonga Dyer
Anisoptera robusta Pierre

Assessment Information [top]

Red List Category & Criteria: Endangered A2acd ver 3.1
Year Published: 2017
Date Assessed: 2017-02-20
Assessor(s): Nguyen, H.N., Vu, V.D., Luu, H.T., Hoang, V.S., Pooma, R., Khou, E., Nanthavong, K., Newman, M., Ly, V. & Barstow, M.
Reviewer(s): Chua, L.S.L.
Facilitator/Compiler(s): Rivers, M.C.
Anisoptera costata is a large tree species. It is native to southern and southeastern Asia including Bangladesh, Indo-China, the Philippines, Borneo and Indonesia. The species is here assessed as Endangered as there has been more than 50% population reduction in the past three generations (300 years). This is due to logging of the species for the timber trade and habitat loss due the expansion of agriculture. Decline is likely to continue into the future. The species is not well represented within ex situ collections and it is probable that all plants remaining will be confined to protected areas. It is recommended that the site of remaining populations is protected and that ex situ collections of the species is gathered. More information on species decline and size should be gathered.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Anisoptera costata is native to Asia. It is found in Bangladesh, Myanmar, Thailand, Cambodia, Lao PDR, Viet Nam, peninsular Malaysia, Borneo, Indonesia (Sumatra, Java) and the Philippines (Mindanao). Within Borneo the species grows in Brunei, Sabah, Sarawak and Kalimantan (Ashton 2004). The species is considered Extinct in Singapore (Chong et al. 2009). It is found at elevations of 0–700 m and the species has an extent of occurrence (EOO) that exceeds 7,000,000 km2.
Countries occurrence:
Bangladesh; Brunei Darussalam; Cambodia; Indonesia (Jawa, Kalimantan, Sumatera); Lao People's Democratic Republic; Malaysia (Peninsular Malaysia, Sabah, Sarawak); Myanmar (Myanmar (mainland)); Philippines; Thailand; Viet Nam
Regionally extinct:
Additional data:
Upper elevation limit (metres):700
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:In Sabah and Sarwak the species is described as uncommon (Ashton 2004). Elsewhere the species is mostly a widespread and common species however population is still in decline. The species is estimated to have a generation length of 100 years. There has been an estimated decline in population of 50% in the past three generations (300 years). Decline is likely to continue into the future but at an unknown rate.
Current Population Trend:Decreasing
Additional data:
Continuing decline of mature individuals:Yes
Extreme fluctuations:NoPopulation severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This is a large tree species, with some specimens reaching 65 m in height (Ashton 2004) but is more commonly reported to be between 30 and 50 m tall. It is common to lowland forests, gregarious semi-evergreen dipterocarp forest and evergreen forest in seasonal areas. It rarely occurs in lowland forest in everwet areas. This is a perennial species with large buttresses. Within Lao PDR the species grows well along rivers and streams, it flowers between June and February and sets fruit in March and April (Biotik 2006-08). The species can grow on sandy to clay soils and sometimes limestone soils (Slik 2009) Habitat is continuing to decline in area, extent and quality as it is of high agricultural values (ITTO 2017).
Continuing decline in area, extent and/or quality of habitat:Yes
Generation Length (years):100

Use and Trade [top]

Use and Trade: The species is used for timber. It belongs to genus Anisoptera which has the trade name Mersawa a commercially valuable wood (ITTO 2017). The wood can be used for beams, flooring, furniture cabinets, containers, veneer, plywood, shipbuilding and for the production of handicrafts and musical instruments (ITTO 2017). The tree also produces a fragrant oily resin which is exported to makes paints and lacquers (Biotik 2006-08).

Threats [top]

Major Threat(s): The species is predominantly threatened by logging. It is also threatened by deforestation and habitat loss for the spread of agriculture.

Conservation Actions [top]

Conservation Actions: This species is found in just three ex situ collections (BGCI 2017), further collections of this species should be made. The species is listed as Vulnerable B1ab (iii) in in Sabah and Sarawak and Near threatened in Peninsular Malayasia (Chau et al. 2010). The species was previously globally assessed as Endangered (1998). Within Lao PDR the species has been categorised as C (near threatened), due to regular human impact on the species habitat and species itself (Phongoudome et al. 2003). The species has been identified as priority species for conservation through most of its range (Luoma-aho et al. 2003). The tree occurs in a number of protected areas across its range. It is recommended that population decline is monitored and that the most threatened sites are found and protected.

Citation: Nguyen, H.N., Vu, V.D., Luu, H.T., Hoang, V.S., Pooma, R., Khou, E., Nanthavong, K., Newman, M., Ly, V. & Barstow, M. 2017. Anisoptera costata. The IUCN Red List of Threatened Species 2017: e.T33166A2833752. . Downloaded on 21 May 2018.
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