Submitted to: Entomological Society of America Annual Meeting North Central Branch
Publication Type: Abstract Only
Publication Acceptance Date: July 8, 2002
Publication Date: November 1, 2002
Citation: BECKLER, A.A., FRENCH, B.W., CHANDLER, L.D., BECK, D.A. USING GIS TO ANALYZE SPATIAL INTERACTIONS BETWEEN LANDSCAPE ATTRIBUTES AND ADULT CORN ROOTWORM POPULATION DYNAMICS AT THE SOUTH DAKOTA AREAWIDE MANAGEMENT SITE FROM 1997-2001. ENTOMOLOGICAL SOCIETY OF AMERICA ANNUAL MEETING NORTH CENTRAL BRANCH. 2002. Technical Abstract: Corn rootworms (CRW) create economic and environmental concerns in the Corn Belt region of the United States. In order to supplement the population control tactics of the areawide program in Brookings, South Dakota, we used Geographical Information Systems (GIS) to examine the spatial relationships over a five-year period (1997 ¿ 2001) between population densities, topography, soil type, and habitat structure. Using the inverse distance weighted interpolation technique, we created surface maps to estimate areas of CRW populations that were collected from emergence cages and Pherocon AM yellow sticky traps. For each year, we used these maps to overlay with vegetation, topography, and soil maps to search for any quantitative relationships. We report on these relationships with respect to landscape metrics such as the temporal shifts in size, shape, and arrangement of patches. This research emphasizes the potential role for GIS to provide information on spatially explicit models of insect populations in real landscapes. It can also be used to find patterns in the landscape that promote high insect population density patches to improve pest management strategies.