Abies yuanbaoshanensis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Pinopsida Pinales Pinaceae

Scientific Name: Abies yuanbaoshanensis Y.J.Lu & L.K.Fu
Common Name(s):
English Yuanbaoshan Fir
Taxonomic Source(s): Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(v)+2ab(v) ver 3.1
Year Published: 2011
Date Assessed: 2010-12-13
Assessor(s): Farjon, A., Li, J.-y., Li, N., Li, Y., Carter, G., Katsuki, T., Liao, W., Luscombe, D, Qin, H.-n., Rao, L.-b., Rushforth, K., Yang, Y., Yu, S., Xiang, Q. & Zhang, D
Reviewer(s): Thomas, P. & Christian, T.
Abies yunabaoshanensis is assessed as Critically Endangered due to its very restricted distribution and a continuing decline in mature individuals. There is a need for ex-situ conservation and for research on the measures required to prevent it from going extinct.
Previously published Red List assessments:

Geographic Range [top]

Range Description:A relatively recently discovered species confined to Yuanbao Shan in Rongshui Xian county (N Guangxi,China) which is outside the general range of fir species. The whole population is within an area of 4 ha.
Countries occurrence:
China (Guangxi)
Additional data:
Estimated area of occupancy (AOO) - km2:10
Number of Locations:1
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The population is estimated to number 589 plants. The population structure is skewed to old (senescent) individuals and young ones, with very few middle-aged plants.

Genetic work indicates that this species will face severe genetic issues in the near future.
Current Population Trend:Decreasing
Additional data:
Number of mature individuals:250-590Continuing decline of mature individuals:Yes
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:The highest mountains in Guangxi, like Yuanbao Shan, have a very cool, wet climate, with annual precipitation exceeding 2,000 mm. The summers are cool and cloudy, the winters last four to five months and bring abundant snow from December through March. This species occurs in mixed deciduous-coniferous forest with other conifers (e.g., Tsuga chinensis) and broad-leaved trees dominated by members of the Fagaceae; the Abies trees are very scattered.
Generation Length (years):25-30

Use and Trade [top]

Use and Trade: No uses have been recorded of this species.

Threats [top]

Major Threat(s): This species has an extremely limited distribution, distant from other species, and is only known from one small area in Guangxi Province. The population was impacted by a severe winter in 2008 and a number of trees died.

Conservation Actions [top]

Conservation Actions: The population occurs within a protected area.

Further research is required into this species’ threats and what measures should be taken to rescue this species from going extinct.

There is a need for ex-situ conservation.

Citation: Farjon, A., Li, J.-y., Li, N., Li, Y., Carter, G., Katsuki, T., Liao, W., Luscombe, D, Qin, H.-n., Rao, L.-b., Rushforth, K., Yang, Y., Yu, S., Xiang, Q. & Zhang, D. 2011. Abies yuanbaoshanensis. The IUCN Red List of Threatened Species 2011: e.T32319A9696565. . Downloaded on 21 September 2018.
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