Abies sachalinensis var. mayriana
|Scientific Name:||Abies sachalinensis var. mayriana|
|Species Authority:||Miyabe & Kudô|
|Taxonomic Source(s):||Farjon, A. 2010. A Handbook of the World's Conifers. Koninklijke Brill, Leiden.|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Assessor(s):||Katsuki, T., Rushforth, K. & Zhang, D|
A modest decline may have occured in Hokkaido and in other parts of its range where it co-occurs with the typical variety. However, this variety is rarely distinguished from the typical variety. The typical variety has been assessed as Least Concern and that assessment is also appropriate for var. mayriana.
|Range Description:||Recorded from Japan: Hokkaido (common in south and central Hokkaido); and the Russian Far East: Sakhalin.|
Native:Japan (Hokkaido); Russian Federation (Sakhalin)
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Abies sachalinensis var. mayriana co-occurs with the typical variety and is distributed over almost all of Hokkaido. However, the natural populations of this taxon were decreasing because of logging and plantation.|
|Current Population Trend:||Decreasing|
|Habitat and Ecology:||It occurs in subalpine forest near sea level to 1,200m. In central Hokkaido, var. sachalinensis and var. mayriana grow sympatrically, but the former tends to grow at higher elevations and in rather cooler climates.|
|Continuing decline in area, extent and/or quality of habitat:||Yes|
|Generation Length (years):||50|
|Use and Trade:||This variety is mainly logged for the manufacture of wood pulp used in the paper industry; its timber is of low quality for construction and carpentry. Because there are few tree species to plant in the subarctic zone, the Sakhalin Fir is planted for wood production at many places in Hokkaido. As an amenity tree it is sometimes used outside the cool to cold maritime climate of northern Japan and the Russian Far East. It is in cultivation in botanic gardens and arboreta in Russia, northern Europe and New England, U.S.A., but rarely survives to maturity in countries with mild winters, where it will not go into prolonged winter dormancy and is susceptible to spring frosts.|
|Major Threat(s):||Significant areas of Sakhalin Fir were logged in Hokkaido between 1980 and 2000. Currently, large scale logging has ceased, limiting the decline. The situation in Sakhalin has not been evaluated.|
|Conservation Actions:||In Hokkaido, some old growth stands are within protected areas.|
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. 2013. IUCN Red List of Threatened Species (ver. 2013.1). Available at: http://www.iucnredlist.org. (Accessed: 12 June 2013).
|Citation:||Katsuki, T., Rushforth, K. & Zhang, D. 2013. Abies sachalinensis var. mayriana. The IUCN Red List of Threatened Species 2013: e.T191571A1989632.Downloaded on 28 June 2017.|