Relatives

Range of distribution of Daurian Milk-vetch, Steven.s Milk-vetch (Astragalus davuricus (Pallas) DC.)

Object description Download GIS-layers

Authors:

The expert-botanists - N.I.Dzyubenko, E.A.Dzyubenko.
The GIS expert - A.N.Dzyubenko.

Date of creation:

17.09.2007

Scale:

1:20 000 000.

Accuracy of the map:

The map is based on data of 1:13 000 000 - 1:25 000 000 scale maps, specified according to herbarium materials.

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 1 basic and 2 subject layers. The species range is represented by polygons and dots.

Accuracy of the qualifier:

The dots represent information on the species localities: 1 - reliable data from herbarium and published sources; the polygons (1) - generalized information on the species distribution from published sources and herbarium specimens.

Method of the map construction:

The data from the herbarium materials of LE, published map of the range (Grossheim, 1952; Polozhij, Malyshev, 1994), and published data (Shishkin, 1946; Malyshev, Peshkova, 1979) were used for constructing the range of Astragalus davuricus. The range consists of five polygons and dots. The species is restricted by mountains of the Caucasus, Altai, Central and East Siberia and the southern Far East. In the east, the species range extends beyond Russia to northeastern Mongolia and northeastern China.

References:

Grossheim AA. 1952. Flora of Caucasus. 2nd ed. V.5. P.245-335. (In Russian).
Shishkin BK., ed. 1946. Flora URSS. V.12. Moscow; Leningrad. 919 p. (In Russian).
Polozhij AV., Malyshev LI., ed. 1994. Flora of Siberia. V.9. Fabaceae (Leguminosae). Novosibirsk: Nauka. 280 p. (In Russian).
Malyshev LI., Peshkova GA., eds. 1979. Flora of the Central Siberia. V.2. 506 p. (In Russian).
Herbarium specimens of V.L.Komarov Botanical Institute [LE], St.Petersburg, Russia.

Rights and copyrights:

The copyrights of the map and descriptions are held by their authors.
The copyright of the photo is held by E.A.Dzyubenko.