Abies squamata

Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_onStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA PINOPSIDA PINALES PINACEAE

Scientific Name: Abies squamata
Species Authority: Mast.
Common Name/s:
English Flaky Fir

Assessment Information [top]

Red List Category & Criteria: Vulnerable A2d 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.
Justification:
This species was exploited in the past for its timber and it is estimated that there has been at least a 30% population reduction in the past three generations (150 years). It therefore qualifies as Vulnerable.
History:
1998 Vulnerable (Oldfield et al. 1998)
1998 Vulnerable
1997 Vulnerable (Walter and Gillett 1998)

Geographic Range [top]

Range Description:Recorded from S Gansu, S Qinghai (Baima Xian), W Sichuan, and E Xizang [Tibet] (Markam Xian) in China.
Countries:
Native:
China (Gansu - Present - Origin Uncertain, Qinghai, Sichuan, Tibet [or Xizang])
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population: This species is widespread and common where it occurs – the trees form forests.
Population Trend: Stable

Habitat and Ecology [top]

Habitat and Ecology: A subalpine species of the high mountains of western China, where it occurs between 3,500 m and 4,500 m asl [3,000-4,700 m according to Liu (1971)] making it one of the highest reaching mountain trees in the world. The soils are commonly grey-brown mountain podzols or lithosols. The climate is cold, relatively dry (arid in E Xizang), but usually perpetual snow at higher elevations provides sufficient moisture throughout the year. It is a constituent of mixed coniferous high altitude forests, with among other species Abies recurvata, A. fargesii var. faxoniana, Picea likiangensis var. rubescens, P. asperata, P. linzhiensis (in E Xizang), Larix potaninii and possibly also Tsuga forrestii. There are very few broad-leaved trees at these high elevations, Betula albosinensis and B. utilis var. prattii being the most common.
Systems: Terrestrial

Threats [top]

Major Threat(s): At these high altitudes forests form isolated patches on favourable sites, surrounded by treeless subalpine vegetation. Direct exploitation of the timber in these forest remnants is easily unsustainable due to very slow growth and past exploitation has led to a decline of this and other conifer tree species in these forests.

Conservation Actions [top]

Conservation Actions: The Government of China has recently imposed a logging ban in western China.

Bibliography [top]

Farjon, A. 2010. Conifer Database (June 2008) In Species 2000 & ITIS Catalogue of Life: 2010 Annual Checklist (Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., eds). Reading, UK. Available at: http://www.catalogueoflife.org/.

Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.

IUCN. 2011. IUCN Red List of Threatened Species (ver. 2011.2). Available at: http://www.iucnredlist.org. (Accessed: 10 November 2011).

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 squamata. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 20 April 2014.
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