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INHS Seminar | Density dependent effects on mosquitoes: unintended consequences of mosquito control?

Event Type
Illinois Natural History Survey Seminar Committee
1005 Forbes Natural History Building, 1816 S Oak Street, Champaign
Mar 5, 2019   4:00 pm  
Dr. Steven Juliano, Illinois State University
Originating Calendar
INHS Events

Abstract:  When faced with a population of a pest, we typically focus on the goal of density reduction of that pest; however, consideration of basic population ecology indicates that population density can have complicated and interactive effects that may mean simple reduction of density could be counterproductive.  Our work on mosquitoes shows: 1) how density of larvae has important trait-mediated effects on adults, which may affect likelihood of disease transmission; 2) mechanisms by which density dependent survivorship interacts with extrinsic mortality to yield greater production of adults than would be the case without mortality; and 3) that these counter intuitive effects are likely in nature.  Focusing on the complexities of basic population ecology may improve strategies for controlling both mosquitoes and vector-borne disease.

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