Carpinus hebestroma 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Fagales Betulaceae

Scientific Name: Carpinus hebestroma Yamam.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii,v) ver 3.1
Year Published: 2016
Date Assessed: 2014-08-01
Assessor(s): Roy, S., Shaw, K. & Wilson, B.
Reviewer(s): Rivers, M.C. & Oldfield, S.
Carpinus hebestroma is a small tree endemic to Taiwan. The range of this species is small with an extent of occurrence of less than 20 km2. It occurs in a protected area, but the identified threat of landslides after typhoons is not mitigated through protected area establishment. This species would benefit from ex situ conservation measures. It is assessed here as Critically Endangered due to its limited extent of occurrence, being only known from only a single location and a projected decline in number of mature individuals and quality of habitat as a result of natural threats.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species is endemic to Taiwan, known only from the type specimen locality, in Batakan, Hualien Xian (Hualien County). Within this locality, the species has small and fragmented subpopulations, distributed 20 km along the Li-Wu riverbank. Extent of occurrence is estimated not to exceed 20 km2 as populations occur along the riverbank. This species occurs at altitudes between 1,000 - 1,500 m asl.
Countries occurrence:
Taiwan, Province of China (Taiwan, Province of China (main island))
Additional data:
Number of Locations:1
Lower elevation limit (metres):1000
Upper elevation limit (metres):1500
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The species has a fragmented distribution along the Li-Wu River, around 20 km long area. Its population is small. There is no available data on the whether the population is increasing, declining or stable as no long term observation has been carried out as of yet (R. Hsu, Researcher, Taiwan Forestry Research Institute, pers. comm. February 5, 2014). Decline in quality of habitat and number of mature individuals is projected due to threats of a small and fragmented population in unstable habitats (see Threats section).
Current Population Trend:Unknown
Additional data:
Continuing decline of mature individuals:Yes
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:A small tree to 8 m, with greyish black bark, lanceolate shaped leaves with serrated margins. It flowers from May-July and fruits July-September. This species occurs in forests on mountain slopes and in limestone areas in East Taiwan.
Continuing decline in area, extent and/or quality of habitat:Yes

Use and Trade [top]

Use and Trade: There is no use or trade information available for this species.

Threats [top]

Major Threat(s): Its present habitat is protected at Taroko National Park. A possible threat to this small and fragmented population is habitat instability, for example landslides after typhoons (R. Hsu, Researcher, Taiwan Forestry Research Institute, pers. comm. February 5, 2014).

Conservation Actions [top]

Conservation Actions: The present habitat of this species is located in the Taroko National Park which is a protected area, but this does not provide protection against the natural threats identified. This species would benefit from ex situ conservation to provide additional protection against natural threats. This species was assessed as Rare in the Flora of Taiwan (1996).

Citation: Roy, S., Shaw, K. & Wilson, B. 2016. Carpinus hebestroma. The IUCN Red List of Threatened Species 2016: e.T194577A2350438. . Downloaded on 23 September 2018.
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