Pests

The area and zones of harmfulness of Steppe lemming Lagurus lagurus (Pallas, 1773)

Object description Download GIS-layers

Authors:

specialist-biologist F.A. Karlik, GIS-specialist M.I. Saulich.

Date of creation:

04.04.2003.

Scale:

1:20 000 000.

Accuracy of map:

Map was created based on materials of maps of natural scale 1:35 000 000.

Projection:

"Alber's Equal Area Conic for the USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0

Basic contents:

Vector map of four layers. Area of species distribution is shown by polygons. Zones of recorded mass outbreak and harmfulness are shown by polygons.

Accuracy of classifier:

Depending on economic significance, the polygon area is divided into zones of moderate (unstable) and weak harmfulness. Periodicity of the pest population raising and mass outbreaks are selected as a classifier for each zone. Population raising and mass outbreaks are registered at least every 5th year in the zone of moderate harmfulness and at least every 8th year in the zone of weak harmfulness. The zones of harmfulness were determined according to a methodical guideline (All-Russia Institute of Plant Protection, 1985).

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.

Reference citations:

Abaturov B.D. 1964. Influence of steppe lemming activity on soil and plant covering of dry steppes in Kazakhstan. Byulleten MOIP. Biol., 69(6): 24-35. (In Russian)
All-Russia Institute of Plant Protection. 1975. Distribution of main agricultural pests in the USSR and efficacy of their control (Methodical guideline). Leningrad: VASKhNIL, VIZR. 66 pp.
All-Russia Institute of Plant Protection. 1985. Methodical guideline: Planning, organizing and technology of plant protection in rodents control. Leningrad: MSKh SSSR, VIZR. 64 pp.
Formozov A.N., Voronov A.G. 1939. Activity of rodents on pastures and hayfields of Western Kazakhstan and its economic significance. Uchenye zapiski MGU. Zoology, 20: 3-112. (In Russian)
Gromov I.M., Polyakov I.Ya. 1977. Voles (Microtinae). Fauna of the USSR. Mammals. Leningrad: Nauka. V. 3(8): 504. (In Russian)
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.].
Naumov N.P. 1948. Essays of comparative ecology of small rodents. Moscow-Leningrad: Izd. AN SSSR. 204 pp. (In Russian)
Polyakov I.Ya. 1966. The harmful rodents and its control. Leningrad: Kolos. 256 pp. (In Russian)

Right and copyright:

All rights reserved.
Copyright © F.A. Karlik & M.I. Saulich (vector map, description).