Monday, 27 October 2003
D0076

This presentation is part of : Student Competition Display Presentations, Section Cd. Behavior and Ecology

Population dynamics and diversity of Carabidae in transgenic and isoline vegetables

Timothy W. Leslie1, Gwen-Alyn Hoheisel2, David J. Biddinger3, and Shelby J. Fleischer1. (1) The Pennsylvania State University, Department of Entomology, 501 ASI Building, University Park, PA, (2) USDA - ARS, Vegetable and Forage Crop Research Unit, 24106 N. Bunn Rd, Prosser, WA, (3) Penn State University, Fruit Research and Extension Center, 290 University Dr, Biglerville, PA

We examined the effects of transgenic sweet corn, squash and potatoes on the diversity of Carabidae and on the population dynamics of abundant species within a multi-crop farm setting. Weekly pitfall data collected during 2001 and 2002 were compared based on season and genotype (transgenic vs. isoline). Species accumulation curves were employed to assess Carabidae diversity between cultivars during each season. Intra- and inter-seasonal population dynamics were analyzed for the most populous species. Practical implications are discussed.

Species 1: Coleoptera Carabidae
Keywords: transgenic crops, biodiversity

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