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Native Dragonflies as Pest-Consumers in Organic Gardens and Farms of North-Central Florida: A Preliminary Assessment
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Permanent Link: http://ufdc.ufl.edu/UF00091523/00561
 Material Information
Title: Native Dragonflies as Pest-Consumers in Organic Gardens and Farms of North-Central Florida: A Preliminary Assessment
Series Title: Journal of Undergraduate Research
Physical Description: Serial
Language: English
Creator: Atwater, Montana
Sieving, Kathryn ( Mentor )
Publisher: University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 2008
 Notes
Abstract: The goal of this study was to explore the possibility that dragonflies may play positive functional roles in agroecosystems as predators on pest insects. Specific objectives included: 1) to compare species richness of dragonflies in organic farm fields and gardens, 2) to determine patterns of microhabitat use by different species of dragonflies in cropped areas, and 3) to determine prey types taken and foraging behaviors exhibited by the Eastern pondhawk (Erythemis simplicicollis), the most common species observed. A total of 170 observations of dragonfly individuals were made across 4 sampling locations in Alachua County, and 6 species were detected. Species richness of dragonflies was significantly greater in gardens than farm fields. Foraging heights (microhabitats) varied significantly among species, and the abundant Eastern pondhawk was most dominant at the crop level where it commonly used both ground and crop substrates for perching/hunting. Because of its abundance and foraging microhabitat preferences, we conclude that the Eastern pondhawk is most likely to have an effect on pests.
 Record Information
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
System ID: UF00091523:00561

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