Invasive Species Compendium

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Abstract

Costs of resistance and correlational selection in the multiple-herbivore community of Solanum carolinense.

Abstract

This paper focuses on the use of a quadratic selection analysis to examine patterns of selection acting on 12 resistance measures involving 9 of the most common species of herbivores (including leaf, flower and fruit feeders) on Solanum carolinense, a noxious weed throughout much of the USA, an invasive species in Europe and Asia and a natural host for several serious agricultural pests, in Virginia, USA, to determine the spread of stabilizing selection for resistance to herbivory in this multiple-herbivore community, effect of the type of herbivory on the likelihood of stabilizing selection, spread of correlational selection and the positive (facilitative) or negative (constraining) influence of the type of herbivory on the correlational selection.