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Area of forest fescue (Festuca drymeja Mert et Koch.).
Object description Download GIS-layers
Authors:
The experts - Dzyubenko N. I., E. A. Dzyubenko.The GIS-Expert - Dzyubenko A. N.
Date of creation:
17.02.2005.Scale:
1:20 000 000.Exactness of a map:
The map was created using maps that had the following 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, area of possible distribution of species are represented by polygons.Exactness of classifier:
Light-colored points are locations referenced in literature sources. Dark-colored points are locations of the species that were as reported from created database BIN (Komarov Botanical Institute). Polygons are based on literature sources, herbarium samples, political boundaries and ecological description.Method of map construction:
For construction of the area of Festuca drymeja the published map of area (Grossheim, 1939; Grasses of Ukraine, 1977) and herbaria data (Komarov Botanical Institute (BIN), (St.-Petersburg) were used. According to literary data the species has distributed across whole Caucasus territory and in the west of Ukraine (Flora of the USSR, 1945; Flora of the European part of the USSR, 1974; Tzvelev, 1976; Brezhnev, Korovina, 1980). The presented area created by data generalization is two separated polygons (green line). The definition of area border is based on all available data which have no significant contradictions.Sources of the data:
Grasses of Ukraine / ed. Shelyag-Sosonko Y. P., 1977. - Kiev: Naukova Dumka,- 518 pp. (in Russian).Grossheim A.A. 1939. Flora of Caucasus. - Baku: AzFAN,- Vol. 2. - pp. 587. (in Russian).
Created database of the BIN materials Komarov Botanical Institute (BIN).
Rights and copyrights:
Copyright on the map and descriptions belong to its authors.Copyright on the photos belong to Dzyubenko N. I.