Wednesday, 29 October 2003
D0547

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

Diversity and species composition of the true bugs (Heteroptera) on the barrens of the southeastern Highland Rim, Tennessee

Gregory J. Wiggins1, Paris L. Lambdin1, Jerome F. Grant1, and Arnold Saxton2. (1) University of Tennessee, Department of Entomology and Plant Pathology, 205 Ellington Plant Sciences Building, Knoxville, TN, (2) University of Tennessee, Department of Animal Science, 2505 River Drive, Knoxville, TN

Species of true bugs were sampled, identified, and evaluated from nine diverse habitats on the 15,816 ha Arnold Air Force Base located on the barrens of the Southeastern Highland Rim in Tennessee during a one-year study. Species were collected using various sampling methods (beat sheeting, canopy fogging, direct sampling, leaf litter sampling, light trapping, Malaise trapping, pitfall trapping, and sweep-netting). Sampling frequencies varied depending upon sampling type. During this study, 1,360 insects were collected representing 97 species in 22 families. Species diversity, abundance, and dominance were determined using Berger-Parker index, Shannon diversity index, and Q-dominance. Diversity ranged from 0.25 in the Maidencane site to 3.11 at a recently burned grassland site. Species evenness ranged from 0.22 at the Maidencane site to 0.96 at the pine site. The highest number of species were collected from the burned grassland sites. Comparisons of diversity among sites will be presented and discussed.

Species 1: Heteroptera Lygaeidae
Species 2: Heteroptera Miridae
Species 3: Heteroptera Pentatomidae
Keywords: diversity, species richness

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