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Distribution area of valesian (sheep.s) fescue (Festuca valesiaca Gaud.).

Object description Download GIS-layers

Authors:

Experts N.I. Dzyubenko & A. Dzyubenko
GIS-Expert A.N. Dzyubenko

Date of creation:

17.06.2005.

Scale:

1:20,000,000.

Exactness 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:

Map is a vector file consisting of polygons and points. Locations of 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 (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 Festuca valensica, published maps of species distribution (Cereals of Ukraine, 1977; Harkevich, 1985; Malyshev & Peshkova, 1990) and herbaria data (Komarov Botanical Institute (BIN), N.I. Vavilov All-Russian Institute of Plant Industry (VIR), St. Petersburg) were used. After generalizing data from these sources, the species distribution area was mapped (green line). The distribution area border is based on all available data. The final distribution area consists of two polygons and separate points. The largest polygon covers the European former USSR and Siberia, the Crimea and the Caucasus, and large parts of Central Asia (except deserts). The smaller polygon is situated in the mountainous regions of Turkmenia. The points, which were not included in the main distribution areas, represent sites of secondary species locations.

Sources of data:

Cereals of Ukraine. 1977. Kiev: Naukova Dumka, 518 pp. (in Russian).
Database of VIR materials (N.I. Vavilov All-Russian Institute of Plant Industry) and BIN materials (the Komorov Institute of Botany).
Harkevich S.S., ed. 1985. Vascular Plants of the Soviet Far East. Vol. 1. St. Petersburg: Nauka, 390 p. (in Russian).
Malyshev L.I., Peshkova G.A., eds. 1990. Flora of Siberia. Vol. 2. Novosibirsk: Nauka, 361 pp. (in Russian).

Rights and copyrights:

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