Water deficit changes patterns of selection on floral signals and nectar rewards in the common morning glory.

ABSTRACT: Understanding whether and how resource limitation alters phenotypic selection on floral traits is key to predict the evolution of plant-pollinator interactions under climate change. Two important resources predicted to decline with our changing climate are pollinators and water in the form of increased droughts. Most work, however, has studied these selective agents separately and in the case of water deficit, studies are rare. Here, we use the common morning glory (Ipomoea purpurea) to investigate the effects of experimental reduction in pollinator access and water availability on floral signals and nectar rewards and their effects on phenotypic selection on these traits. We conducted a manipulative experiment in a common garden, where we grew plants in three treatments: (1) pollin

SUBMITTER: Garcia Y 

PROVIDER: S-EPMC10601024 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature