Induced resistance in a brown alga: phlorotannins, genotypic variation and fitness costs for the crustacean herbivore.

Abstract excerpt

In the marine littoral, strong grazing pressure selects for macroalgal defenses such as the constitutive and inductive production of defense metabolites. Induced defenses are expected under spatiotemporally varying grazing pressure and should be triggered by a reliable cue from herbivory, thereby reducing grazing pressure via decreased herbivore preference and/or performance. Although induced resistance has...

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