Pests

The Area and harmfulness zones of the Spotted pea weevil (Sitona crinitus )

Object description Download GIS-layers

Authors:

Specialist biologist - G.E. David'yan, GIS-specialist - M.I. Saulich.

Date of creation:

15.08.2003.

Scale:

1:20.000.000.

Accuracy of map:

Map was created based on materials of maps of natural scale 1:25 000 000 literature sources.

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. Zones of pest damage are shown by polygons.

Accuracy of classifier:

Insect area is divided into zones of 1) permanent mass reproduction and systematic large damage (area of strong harm); 2) sporadic reproduction and damage (area of moderate harm) and 3) insignificant reproduction and damage (area of weak harm).

Method of map production:

Scientists were given maps with boundaries of Oblasts and arable lands. After reviewing historic literature, species distribution was hand drawn on maps. If data were on the Oblast-level, distribution is on the Oblast level. In some cases, Oblast.s are further refined by boundaries of the Arable Land Map (Koroljeva et al., 2003). Hand drawn maps were scanned, georeferenced and vectorized. The base map used for the zones of distribution and harmfulness is from Petrukha (1969). The borders of the different zones were adjusted according to Petrukha (1969).

Reference citations:

Freude H., Harde K.W., Lohse G.A. 1981. Die Kafer Mitteleuropas (Keys to families and genera for adult males and females). Krefeld: Goecke & Evers. 310 p. (In German)
Grossheim N.A. 1928. Materials for the study of the Genus Sitona Germ. Bulletins of Mleev Horticultural Experiment Station. Mleev. V. 17: 57.
Koroljeva IE, Vilchevskaya EV, Ruhovich DI. 2003. Digital Arable Land Map. Laboratory of Soil Information of the Dokuchaev Soil Institute, Moscow, Russia [Based on: Yanvareva LF. (ed.), Martynjuk KN., Kisileva NM. 1989. Map of Land Use, Faculty of Geography, Moscow State University, Moscow, Russia.].
Petrukha O.I. 1969. The pea weevils of the Genus Sitona Germ. from the fauna of USSR, damage to bean crops. Leningrad: Nauka. 255 pp.

Right and copyright:

All rights reserved.
Copyright 2003 © G.E. David'yan & M.I. Saulich (vector map, description) and G.E. David'yan (picture).