Pests
Distribution and zones of harm of the Narrow-skulled vole (Meadow mouse) Microtus (Stenocranius) gregalis (Pallas, 1778).
Object description Download GIS-layers
Authors:
Specialist-biologist F.A. Karlik, GIS-specialist M.I. Saulich.Date of creation:
18.04.2003.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", 9, 1001, 7, 100, 0, 44, 68, 0, 0.Basic contents:
Vector map. Area of species distribution is shown by polygons. Zones of recorded mass outbreak are shown by polygons.Accuracy of classifier:
Depending on economic significance, the area is divided into zones of moderate (unstable) and low levels of harm. Periodicity of rising pest populations and mass outbreaks were used as the classifier to define zone boundaries. In the area of moderate harmfulness, mass outbreaks are registered approximately every 5 years or less, and in zone of low level harm, population rise every 8th year or lessMethod 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. Zones of harmfulness were determined according to the All-Russian Institute of Plant Protection methodical guidelines (1985).Reference citations:
All Russian 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 Russian Institute of Plant Protection. 1985. Methodical guideline: Planning, organizing and technology of plant protection in rodents control. Leningrad: MSKh, VIZR. 64 pp.
Gromov I.M., Polyakov I.Ya. 1977. Voles (Microtinae). In: Strelkov A.A., ed. Series 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.].
Prokopyev N.P., Vinokurov V.N. 1986. Narrow-skulled vole in Central Yakutia. Yakutsk: Yakutskii filial SO AN SSSR. 143 pp.
Rapoport L.P. 1955. Stuffs on an ecology Narrow-skulled vole in Central Tien-Shan. In: Proceedings of the Institute of Zoology and Parasitology of Kyrgyz SSR. Frunze. V. 3: 43-51. (In Russian)
Sokolov I.I., ed. 1963. Mammalian fauna of the USSR. Part I. Leningrad: Izd. AN SSSR. 638 p. (In Russian)
Zymin R.P. 1953. Narrow-skulled vole on high-mountainous pastures of Tien-Shan. In: Geographic researches in Central Tien-Shan. Moscow: Izd. AN SSSR. 160-186 pp. (In Russian)