Document Type : Agricultural Entomology
Authors
1 Department of Entomology, Shiraz Branch, Islamic Azad University, Shiraz, Iran
2 Insect Taxonomy Research Department, Iranian Research Institute of Plant Protection, Agricultural Research Education and Extension Organization (AREEO) Tehran, Iran
3 Department of Life Sciences, Entomology Section, State Museum of Natural History Karlsruhe, Karlsruhe, Germany
Abstract
The Silver Y, Autographa gamma and the Turnip moth, Agrotis segetum are considered amongst the most important agricultural pests in the world and Iran. In this paper, the potential distribution of these species in Iran and the important climatic factors affecting their distribution were determined using MaxEnt model, R package and ArcGIS based on their occurrence data. The results showed that, the most suitable areas in both species, are restricted to the northern Provinces; but in A. segetum the Bushehr Province, parts of the Chaharmahal and Bakhtiari and Kohgiluyeh, and Boyerahmad Provinces, and north of the Fars are also suitable. The main environmental variables contributing to their distribution were isothermality (bio2/bio7) (bio3), average wind speed in August (wind8), and precipitation seasonality (coefficient of variation). Moreover, precipitation of the driest quarter (bio17) and precipitation of the wettest quarter (bio16) were dominant climatic factors in Au. gamma and A. segetum, respectively. Additionally, the altitude had a major effect in distribution model of A. segetum. Having knowledge about the suitable areas for these species considering their host preferences will be effective in providing their management programs.
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