Over the past four years we have collected four seasons worth of field data on H. subflexa infestation to over 100 naturally occurring field populations of Physalis plants in North Carolina, Florida, Texas and Mexico. We have conducted four separate common garden studies in North Carolina and Mexico. We have also carried out laboratory assays on larval survivorship and female oviposition using 25 different species of Physalis. The data that we have accumulated demonstrates that some Physalis species are consistently not viable hosts for H. subflexa, and many other species are only marginal hosts. I will present our findings on how plant characteristics influence H. subflexaís host range. I will also discuss how these plant characteristics relate to pressure from natural enemies and competitors.
See more of Student Competition for the President's Prize, Section Cd4. Behavior and Ecology, and Cf1. Quantitative Ecology
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See more of The 2004 ESA Annual Meeting and Exhibition