title: Sex allocation: evolution to and from dioecy.
abstract: Sex allocation in hermaphrodites should evolve in response to changes in the frequency of unisexuals. As predicted, it has now been demonstrated that hermaphrodites respond to the removal of males from experimental plant populations by increasing their allocation to male function.
authors.affiliation: Department of Biology, Jordan Hall, 1001 East Third Street, Indiana University, Bloomington, IN 47405, USA. ldelph@indiana.edu
authors.forename: Lynda F
authors.initials: LF
authors.lastname: Delph