Fire effects on plant reproductive fitness vary among individuals reflecting pollination-dependent mechanisms.

Fire increased annual reproductive fitness via resource- and pollination-dependent mechanisms in Echinacea and Liatris but did not affect Solidago fitness. The consistent relationship between synchrony and seed set implies temporal mating opportunities play an important role in pollination. While fire promotes flowering for many plant species, our results reveal that even closely related species exhibit differential responses to fire, which could impact the broader plant community. This article is protected by copyright. All rights reserved.