Relatives

Range of distribution of Fraxinus excelsior L. (European ash)

Object description Download GIS-layers

Authors:

The expert-botanist - I.G.Chukhina,
the GIS expert - L.V.Bagmet.

Date of creation:

19.03.2007

Scale:

1:20 000 000.

Accuracy of the map:

The map is based on data of herbarium specimens and on 1:13 000 000-1:35 000 000 scale maps.

Projection:

"Albers Equal-Area Conic Projection for USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0

Basic contents:

The map is a vector file consisting of polygons and dots. The localities of the species are represented by the dots; the area of species distribution is represented by the polygons.

Accuracy of the qualifier:

The dots represent information on the species localities according to published sources and herbarium specimens. The polygons are based on generalized information from published sources and herbarium specimens.

Method of the map construction:

The data on the species distribution were obtained from the database of the species localities coordinates included in the Information Retrieval System "Crop Wild Relatives in Russia" (STC Informregistr 0229905883, 1999), and from the published maps by Grossheim (1967) and Kubli in "Ranges of trees and shrubs of the USSR" (1986).
The borders of the European part of the range are drawn after Kubli (1986), in the Caucasus after Grossheim (1967) and corrected according to LE Herbarium materials referred to in the database of the Information Retrieval System. In the Crimea, the border is drawn after Kubli (1986) and LE Herbarium materials.

References:

Grossheim AA. 1967. Flora of Caucasus. 2nd ed. V.7. P.197. Map 207. (In Russian).
Herbarium specimens of V.L.Komarov Botanical institute [LE], St.Petersburg, Russia.
N.I.Vavilov All-Russian Institute of Plant Industry, Herbarium Department, 1999. Information Retrieval System: Crop Wild Relatives in Russia. STC Informregistr 0229905883, St.Petersburg, Russia.
Sokolov SI., Svjaseva OA., Kubli VA. 1986. Ranges of trees and shrubs of the USSR. V.3. Leningrad: Nauka. P.121-122. Map 70V. (In Russian).

Rights and copyrights:

The copyrights of the map and descriptions are held by their authors, the copyright of the photo is held by D.O.Eliseev.