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Hopea cordata 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Theales Dipterocarpaceae

Scientific Name: Hopea cordata J.E.Vidal

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(i,ii,iii,v) ver 3.1
Year Published: 2017
Date Assessed: 2017-03-01
Assessor(s): Hoang, V.S. & Luu, H.T.
Reviewer(s): Chua, L.S.L.
Contributor(s): Barstow, M.
Facilitator/Compiler(s): Hilton-Taylor, C., Rivers, M.C.
Justification:
Hopea cordata is a small tree species. It is only known from Cam Rah, Viet Nam. The species is globally assessed as Critically Endangered. The species has an estimated extent of occurrence (EOO) of less than 100 km2, population is likely to be significantly under 250 individuals and only one sub-population of the species is known. There is also decline in the species habitat (area, extent and quality) and in the number of mature individuals in the population. The species is still under threat for harvesting for fuel wood and is also at risk from habitat loss for agriculture and urban development. The species is not represented in ex situ collections or protected areas. Ex situ collections of the species should be made and propagation protocols for these individuals should be developed to generate a conservation stand of the species. Remaining habitat should be protected as a matter of urgency. Species management plans require development.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is endemic to a very small area on the coast in southern Viet Nam in Cam Ranh (Khanh Hoa). The EOO is estimated to be well less than 100 km2, area of occupancy (AOO) is considered to be slightly larger than 10 km2. The species can be considered to be within one location due to the variety of threats impacting its native range and current distribution.
Countries occurrence:
Native:
Viet Nam
Additional data:
Continuing decline in area of occupancy (AOO):Yes
Estimated extent of occurrence (EOO) - km2:1-99
Continuing decline in extent of occurrence (EOO):Yes
Number of Locations:1
Upper elevation limit (metres):5
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population is very small and restricted. The species is found in one subpopulation. In 2003, 100 saplings were known at Cam Ranh (Khanh Hoa) (Nghia 2003). It is unlikely to be present in other areas. The number of mature individuals of this species is in decline.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:100-249Continuing decline of mature individuals:Yes
Population severely fragmented:No
All individuals in one subpopulation:Yes

Habitat and Ecology [top]

Habitat and Ecology:This is a small tree species that grows to 10 m tall. It is found growing in dry, tropical lowland forest and coppices after it has been cut. Species habitat is in decline in area, extent and quality.
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Yes

Use and Trade [top]

Use and Trade: This species is used for fuelwood. The timber may have been used in the past, but all the large trees are now gone.

Threats [top]

Major Threat(s): The species was historically threatened by logging for timber but this is likely to have ceased as most mature individuals have gone. The species is still threatened by logging for fire wood. The species is threatened by habitat conversion and loss due to the expansion of agriculture, homes, gardens, roads and tourist developments which impede its natural habitat range. The species is only represented in one restricted population, it is likely to experience inbreeding depression due to this.

Conservation Actions [top]

Conservation Actions: This species is not found in any ex situ collections (BGCI 2017), it is also not found in any protected areas. It is essential that ex situ collections of the species are collected and the remaining stands and habitat of the species are protected. The species is considered endangered in Viet Nam, some conservation action is in place (Nghia 2003). Harvest of the species should be halted and propagation protocols for the species requires development. Conservation attention is needed for this species to prevent it from becoming extinct in the wild.

Citation: Hoang, V.S. & Luu, H.T. 2017. Hopea cordata. The IUCN Red List of Threatened Species 2017: e.T33388A2836326. . Downloaded on 11 December 2017.
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