Experimental examination of pollinator-mediated selection in a sexually deceptive orchid.

ABSTRACT:

Background and aims

Selection exerted by pollinators on flowers is predicted to occur along two distinct axes. While pollinator attraction to flowers is governed by pollinator preferences, pollen transfer efficiency is mediated by the mechanical fit of pollinators to flower morphology. Although pollinator attraction in sexually deceptive orchids is typically underpinned by floral odour, morphological traits are expected to play a vital role in mechanical fit during floral contact with pollinators.

Methods

Here we utilize a comprehensive and novel procedure to test for pollinator-mediated selection through mechanical fit with the flower labellum in the orchid Chiloglottis trapeziformis. This approach combines detailed pollinator observations related to plant reproductive fitn

SUBMITTER: de Jager ML 

PROVIDER: S-EPMC6344214 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature