Isoglossa woodii (Acanthaceae) exhibits population-wide synchrony in reproduction and mortality. Tsvuura et al. invoke predator satiation and facilitation of seedling establishment as explanations for masting and synchronous monocarpy, respectively, in this species. The selective advantage of masting in I. woodii derives from satiation of both pre- and post-dispersal seed predators, while adult mortality facilitates seedling establishment. Satiation of seed predators and the benefits of seedling establishment are both strong drivers of the evolution of synchronous monocarpy.
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