Relatives

Range of distribution of Betula pubescens Ehrh. (Downy birch, white birch)

Object description Download GIS-layers

Authors:

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

Date of creation:

13.02.2007

Scale:

1:20 000 000.

Accuracy of the map:

The map is based on data of herbarium specimens and on 1:20 00 000 - 1:86 000 000 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 contruction:

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 N.I.Orlova and A.A.Kustysheva in "Flora of the Northeast of European part of the USSR" (1976), P.B.Klimov in "Vascular plants of the Soviet Far East" (1996), M.A.Shemberg in "Flora of Siberia" (1992), A.K.Skvortsov in "Ranges of trees and shrubs of the USSR" (1980), Koropachinskiy and Vstovskaya (2002).
In the European part, the northern range border is drawn in Kola Peninsula according to LE Herbarium materials referred to in the database of the Information Retrieval System; in the Arkhangelsk Region after Orlova and Kustysheva (1976); the southern border after Skvortsov (1980), and corrected according to LE Herbarium materials. Several localities in the steppe zone of the European Russia are not included in the polygon. The range borders in its Siberian part are drawn after Shemberg (1992) and corrected according to LE Herbarium materials. The eastern range border in the Far Eastern part is constructed after Klimov (1996).

References:

Herbarium specimens of V.L.Komarov Botanical institute [LE], St.Petersburg, Russia.
Kharkevich SS., ed. 1996. Vascular plants of the Soviet Far East. V.8. Leningrad: Nauka. P.20. (In Russian).
Koropachinskiy IYu., Vstovskaya TN. 2002. Woody plants of the Asian part of Russia. Novosibirsk: Publishing House of Siberian Division of the Russian Academy of Science, Branch "Geo". P.197-198. (In Russian).
Krasnoborov IM., Malyshev LI., ed. 1992. Flora of Siberia. V.5. Salicaceae - Amaranthaceae. Novosibirsk: Nauka. P.64-65. (In Russian).
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. 1980. Ranges of trees and shrubs of the USSR. V.2. Leningrad: Nauka. P.97-99. (In Russian).
Tolmachev AI., ed. 1976. Flora of the Northeast of European part of the USSR. V.2. Leningrad: Nauka. P.157-158. (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 (Publ.in: Vorobeykov GA., Dubenskaya GI. Essentials of plant biology: Digital manual. A.I.Herzen Russian Pedagogical University).