Relatives

The distribution area of Russian olive, oleaster. (Elaeagnus angustifolia L.)

Object description Download GIS-layers

Authors:

The expert-botanist I.G. Chuhina
The GIS-Expert E.I. Suzanskaja

Date of creation:

17.12.2003

Scale:

1:20,000,000.

Accuracy of map:

Map was created using data from herbarium specimens and maps of scale 1:13,000,000-1:40,000,000.

The projection:

"Alber's Equal Area Conic for Russia", 9, 1001, 7, 100, 0, 44, 68, 0, 0.

Basic contents:

Map is a vector file consisting of polygons and points. Locations of species are represented by points; areas of possible distribution of species are represented by polygons.

Accuracy of qualifier:

Points represent locations of the species referenced in published sources and locations from which herbarium specimens were taken. Polygons are based on generalized information from published sources and herbarium specimens.

Method of map construction:

Species location data were obtained from a database of species site coordinates, the INFORMATION RETRIEVAL SYSTEM, "Wild-growing relatives of cultural plants of Russia" (NTC "Informregistr" № 0229905883), and published maps by Koropachinskiy (1983) and Grossgeim (1962). The species has a disjunctive distribution area. Borders of the distribution area in the Caucasus are based on Grossgeim (1962); the Central Asian parts of the distribution area were mapped using herbarium materials from the Komarov Botanical institute and the N.I. Vavilov All-Russian Institute of Plant Industry (VIR) located in the database of the information retrieval SYSTEM; the easternmost part of the distribution area was mapped using Koropachinsky (1983). Sites species locations in the European region were not included in the general distribution area, as the species was introduced into this territory and now runs wild.

Sources of data:

Grossgeim, A.A. 1962. Flora of the Caucasus. Vol. 6. Moscow/Leningrad: Publishing House of the USSR Academy of Sciences, p. 222.
Koropachinskiy, I.Yu. 1983. Woody plants of Siberia. Novosibirsk: Nauka, p. 216 (in Russian).
Herbarium Specimans Komarov Botanical institute and N.I. Vavilov All-Russian Institute of Plant Industry (VIR) (St. Petersburg).

Right and copyright:

Copyright on this map and its description belongs to its authors;
copyright on picture belongs to I.G. Chuhina.