Abies chensiensis ssp. yulongxueshanensis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	CONIFEROPSIDA	CONIFERALES	PINACEAE

Scientific Name:	Abies chensiensis ssp. yulongxueshanensis
Species Authority:	Rushforth
Taxonomic Notes:	Rushforth (1984) described this subspecies from the main massif of the Lijiang Shan (Yulongxue Shan, 5,596 m) in NW Yunnan. It has somewhat larger cones than the type subspecies and marginal resin canals in the leaves of cone-bearing shoots. In the Flora of China 4 (Liguo et al. 1999) where no subspecies of A. chensiensis are recognized, this taxon has been treated as a synonym of Abies ernestii Rehd. var. salouenensis (Bord.-Rey & Gaussen) W.C.Cheng & L.K.Fu.

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Published:

2011

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.

Contributor/s:

Justification:
Although this subspecies has a very small extent of occurrence and area of occupancy, there are no threats at present and the range is not severely fragmented. Hence it is listed as Least Concern.

History:

1998	–	Vulnerable (Oldfield et al. 1998)
1998	–	Vulnerable
1997	–	Indeterminate (Walter and Gillett 1998)

Geographic Range [top]

Range Description:	The population is restricted to a small area of forest at Lijiang Shan in Yunnan province, China.
Countries:	Native: China (Yunnan)
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	This subspecies is only known from one mountain range in Yuong Shui Shan in NW Yunnan and is believed to count fewer than 1,000 mature trees. Parts of this mountain are a National Park and at least some of the population occurs within this protected area.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Found in high mountains in mixed coniferous forest at 3,000 m altitude and higher.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Logging has occurred in the past but a logging ban has been imposed by the Government of China.

Major Threat(s):

Logging has occurred in the past but a logging ban has been imposed by the Government of China.

Conservation Actions [top]

Conservation Actions:	The Lijiang Shan is one of the best preserved areas and the majority of the population is found within the protected area. Further research into the population size, range and particularly the threats is needed. If threats are identified (even potential threats), then the species could well be reassessed under a more threatened category.

Conservation Actions:

The Lijiang Shan is one of the best preserved areas and the majority of the population is found within the protected area.

Further research into the population size, range and particularly the threats is needed. If threats are identified (even potential threats), then the species could well be reassessed under a more threatened category.

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 chensiensis ssp. yulongxueshanensis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 21 May 2013.
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