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Distribution area of Bird.s foot trefoil (Lotus corniculatus L.).

Object description Download GIS-layers

Authors:

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

Date of creation:

17.02.2005.

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

Method of map construction:

In order to construct the distribution area of Lotus corniculatus, published maps of species distribution (Grossheim, 1952; Meusel, 1965; 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 opinion on the species distribution within Russia and the adjacent states partly coincides with that of Meusel (1965) and Hulten & Fries (1986). The distribution area is based on all available data. The area has a disjunctive quality and consists of two polygons and separate points. The largest polygon occupies the European part of the former USSR (all regions except the north). Within the Caucasus, the distribution area of the species in the southeast and southwest is bordered by the Black and Caspian Seas and the frontier. The smallest polygon is situated in the foothills of the Kopet-Dag Mountains. The points, which were not included in the general distribution area, represent sites of secondary origin of the species.

Sources of data:

Database of VIR materials (N.I. Vavilov All-Russian Institute of Plant Industry) and BIN materials (the Komorov Institute of Botany).
Grossheim A.A. 1952. Genus Lotus. Flora of the Caucasus. Vol. 5. M.-L.: Academy of Science of the USSR, p. 225-230. (in Russian).
Hulten E., Fries M. 1986. Atlas of Northern European vascular plants north of the Tropic of Cancer. Vol. 1-3. Konigstein, p. 1172.
Meusel Y. 1965. Vergleichende Chorologie der Zentraleuropischen Flora. Jena, 583 p.

Rights and copyrights:

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