Relatives
The distribution area of black-violet leek (Allium atroviolaceum Boiss.)
Object description Download GIS-layers
Authors:
The expert botanist - Chukhina I.G.The GIS-expert - Sinitsyna T.A.
Date of creation:
14.12.2003.Scale:
1:20,000,000.Accuracy of map:
Map was created using herbarium specimens and a map of scale 1:13,000,000.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; actual location occurrence is shown by points.Accuracy of classifier:
Point data were obtained from literature and herbarium specimens. Polygons are based on literature, 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. Species location data were obtained from the VIR database (N.I. Vavilov Institute, 1992) and the published maps by Grossheim (1940). Western and eastern borders of area were determined according to herbarium data (V.L. Komarov Botanical Institute, Saint Petersburg State University). Caucasian borders of area were determined according to the map published by Grossheim (1940) and were corrected according to herbarium data (V.L. Komarov Botanical Institute). 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. 1940. Flora of the Caucasus. Baku: Publishing House AzFAS. V. 2: 284. (In Russian)Kalmykia State University, Kalmykia, Russia.
N.I. Vavilov All-Russian Institute of Plant Industry [WIR], St. Petersburg, Russia.
N.I. Vavilov Institute, Herbarium Department, 1992. Information retrieval system: wild-growing relatives of cultural plants of Russia. STC Informregistr 0229905883, St. Petersburg, Russia.
Saint Petersburg State University [LECB], St. Petersburg, Russia.
V.L. Komarov Botanical Institute [LE], St. Petersburg, Russia.