Relatives

Distribution area of Arctic bluegrass (Poa arctica R. Br.).

Object description Download GIS-layers

Authors:

Experts N.I. Dzyubenko & E.A. Dzyubenko
GIS-expert A.N. Dzyubenko

Date of creation:

17.09.2005

Scale:

1:20,000,000.

Exactness of map:

The map was created using maps of scale 1:10,000,000-1:80,000,000.

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 the species are represented by points, while the area of possible distribution of the species is represented by polygons.

Exactness of classifier:

Light-colored points represent species locations referenced in published sources. Dark-colored points represent species locations reported in the VIR database (N.I. Vavilov All-Russian Research Institute of Plant Industry) and BIN database (Komorov Institute of Botany). Polygons are based on published sources, herbarium samples, political boundaries and ecological descriptions.

Method of map construction:

To construct the distribution area of Poa arctica, published maps of species distribution (Tolmachev, 1964; Harkevich, 1985; Hulten & Fries, 1986) and herbaria data (Komarov Botanical Institute (BIN), N.I. Vavilov All-Russian Institute of Plant Industry (VIR), St. Petersburg) were used. Our species distribution map mostly coincides with that of Hulten & Fries (1986). The mapped distribution area, which was created generalizing data, consists of one large polygon, four small polygons (green line) and separate points, which correspond to published data on species distribution (Rodjevitz & Schischkin, 1937; Fedorov, 1974; Tzvelev, 1976; Malyshev & Peshkova, 1990). The distribution area borders were mapped using all available data. The largest polygon covers the arctic area of Russia, the Urals, Siberia and the Far East. The points, which were not included in the polygons, represent single locations of the species. Distribution area borders take into account the ecological preferences of the species.

Sources of data:

Database of VIR materials (N.I. Vavilov All-Russian Institute of Plant Industry) and BIN materials (Komorov Institute of Botany).
Fedorov A.A., ed. 1974. Flora of the European part of the USSR. Vol. 1. L.: Nauka, 404 pp. (in Russian).
Harkevich S.S., ed. 1985. Vascular Plants of the Soviet Far East. Vol. 1. St. Petersburg: Nauka, 390 p. (in Russian).
Hulten E., Fries M. 1986. Atlas of Northern European vascular plants north of the Tropic of Cancer. Vol. 1-3. Konigstein, 1172 p.
Malyshev L.I., Peshkova G.A., ed. 1990. Flora of Siberia. Vol. 2. Poaceae (Graminea). Novosibirsk: Nauka. 361 pp. (In Russian)
Rodjevitz P.U., Schischkin V.K., eds. 1937. Flora of the USSR. Vol. 2. M.-L.: USSR, 778 pp. (in Russian).
Tolmachev A.I., ed. 1964. Arctic flora of the USSR. Vol. 2. M.-L.: Nauka, 273 p. (in Russian).
Tzvelev N.N. 1976. Cereals of the USSR. Leningrad: Nauka. 788 p.

Rights and copyrights:

Copyright on the map and its description belongs to its authors.
Copyright on the photos belongs to N.I. Dzyubenko.