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Distribution area of nodulose timothy (Phleum nodosum) .

Object description Download GIS-layers

Authors:

Object experts L.L. Malyshev & N.J. Malysheva
GIS-expert L.L. Malyshev

Date of creation:

27.12.2004

Scale:

1:20,000,000

Accuracy of map:

Map was created using maps of scale 1:2,000,000-1:11,250,000.

Projection:

"Alber's Equal Area Conic for the USSR", 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.

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 V.L. Komarov Institute herbarium, Grossheim (1939), and Hulten & Fries (1986) were used to map the distribution area. 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. Within the European part of the former USSR, the species is distributed throughout the zone of coniferous broadleaf woods and the forest-steppe zone down to the Urals. Separate locations were marked in the Crimea and the Donetsk range. In the Caucasus, the species grows in the woods of mid-elevation mountains. Taxonomic status of the species is difficult to diagnosis due to the differences in the distribution area proposed here and the area proposed by Hulten & Fries (1986).

Reference citations:

Grossheim A.A. 1939. Flora of the Caucasus. Vol. 2. Polypodiaceae-Gramineae. Baku: Publishing house AzFaN. 587 p.
Hulten E., Fries M. 1986. Atlas of Northern European Vascular Plants North of the Tropic of Cancer. Vol. 1-3. Konigstein. 1172 p.
V.L. Komarov Botanical Institute [LE], St. Petersburg, Russia.

Rights and copyrights:

All rights on the map and its description belong to its authors.