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Floral biology of Salvia stachydifolia, a species visited by bees and birds: connecting sexual phases, nectar dynamics and breeding system to visitors’ behaviour
Journal of Plant Ecology  (IF1.774),  Pub Date : 2021-02-13, DOI: 10.1093/jpe/rtab012
Camila N Barrionuevo, Santiago Benitez-Vieyra, Federico Sazatornil

Adaptive convergence in floral phenotype among plants sharing a pollinator guild has been acknowledged in the concept of pollination syndrome. However, many plants display traits associated with a given syndrome, but are visited by multiple pollinators. This situation may indicate the beginning of a pollinator shift or may result in a stable situation with adaptations to different pollinators. In Salvia stachydifolia, a previous study suggested that flower shape is optimized to maximize the contribution to pollination of bees and hummingbirds. Here, we studied three additional aspects of its floral biology: sexual phases, nectar dynamics and breeding system, and examined their connection with pollinators’ behaviour to explore the presence of adaptations to bee and/or hummingbird pollination.