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January 1-7, 2001 |
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If you choose to follow any links to the abstracts and/or complete text of articles, books, and documents listed below, you will be leaving the Strategian Web site. If you wish to return to this page from the Web page you are sent to, please use the Back option of your browser. Feature Items: Jennifer M. Varchola and James P. Dunn Influence of Hedgerow and Grassy Field Borders on Ground Beetle (Coleoptera: Carabidae) Activity in Fields of Corn. (... the authors tested the theory that complex plant communities should support a richer community of natural enemies of pest insects than a simple plant community. In this case, the authors conducted a study in Iowa, USA and compared the populations and activity of predatory ground beetles found among corn fields bounded by either complex [woody] hedges or simple grass edges. These beetles are enemies of and feed upon insects that attack and feed upon corn plants. The authors found that both complex [woody hedges] and simple [grass edges] field border habitats support abundant and diverse populations of carabids [ground beetles] during most of the growing season. However, during the early growing season [May-June] hedges appear to be more important than grass edges in supplying carabid beetles to corn fields. Woody hedges may serve as very important overwintering sites and as an early season refuge for predatory beetles in corn. Other keywords and phrases -- alternate food sources, biological control, community similarities, corn-canopy closure, corn emergence, diversity, refuge from farming activities, species richness, vegetative -- from the text of the abstract) Agriculture, Ecosystems & Environment Volume 83, Numbers 1-2 (January 2001): 153-163. How to find the above journals, magazines, and other publications? See Step 3: Locate of the Information Strategy for details. Questions about any or all of the above? Please let me know. |
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