Distribution area of Daghestan sweet clover (Melilotus suaveolens) .

Object description Download GIS-layers


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

Date of creation:




Accuracy of map:

The map was created using maps of scale 1:25,000,000-1:40,000,000.

The projection:

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

Basic contents:

Vector map. Area of species distribution is shown by polygons, while actual location occurrence is shown by points.

Accuracy of classifier:

Point data were obtained from published sources and herbarium specimens. Polygons are based on published sources, herbarium samples, and field surveys by the authors. Light-colored points represent species locations referenced in published sources. Dark-colored points represent species locations reported in the VIR database (N.I. Vavilov Institute, 2003) and by the herbarium of the V.L. Komarov Institute of Botany.

Method of map production:

Published literature was reviewed, including atlases, monographs and papers. Occurrence data were obtained from herbarium specimens, floras, monographs and papers. The following sources were used to construct the species distribution map: Polozhiy & Malyshev (1994), Schmidt (1983), and the V.L. Komarov Botanical Institute. The species originated in Mongolia and Northeastern China. The species locations in Eastern Siberia, the Far East and Primorye comprise the northeastern part of the species distribution area. The final species area within Russia is represented by the polygon (green line) and separate points. The western border of the distribution area was defined using the V.L. Komarov Institute herbarium data and Polozhiy & Malyshev (1994). The eastern border was determined using Schmidt (1983) and the V.L. Komarov Institute herbarium data. The northern border was extended northward in accordance with herbarium data and Polozhiy & Malyshev (1994). The points, which were not included in the polygon, represent secondary, invasive sites of the species. Data were then compiled through scanning and geo-referencing to develop a composite vector map. The biologist, together with the GIS-specialist, drew a new plant distribution area based on compiled data.

Reference citations:

Grossheim A.A. 1952. Genus Trifolium. Flora of the Caucasus. Vol. 5. Moscow-Leningrad: USSR. 191-221 p. (In Russian)
Mosel H. 1965. Comparative Chorology of the Flora of Central Europe. Jena. 583 p.
N.I. Vavilov Institute, Herbarium Department, 2003. Database of geographic coordinates (in house), St. Petersburg, Russia.
Polozhiy A.B., Malyshev L.I., eds. 1994. Flora of Siberia. Vol. 9. Novosibirsk: Nauka. 280 pp. (In Russian)
Schmidt V.M., ed. 1983. Areas of medical plants and their relatives of the USSR. Leningrad: Leningrad University Publishers. 208 pp.
V.L. Komarov Institute of Botany [LE], St. Petersburg, Russia.

Rights and copyrights:

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

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