The effects of floral mimics and models on each others' fitness.

Proceedings. Biological Sciences
Bruce Anderson, Steven D Johnson

Abstract

Plants that lack floral rewards may nevertheless attract pollinators by mimicking the flowers of rewarding plants. It has been suggested that both mimics and models should suffer reduced fitness when mimics are abundant relative to their models. By manipulating the relative densities of an orchid mimic Disa nivea and its rewarding model Zaluzianskya microsiphon in small experimental patches within a larger population we demonstrated that the mimic does indeed suffer reduced pollination success when locally common relative to its model. Behavioural experiments suggest that this phenomenon results from the tendency of the long-proboscid fly pollinator to avoid visits to neighbouring plants when encountering the mimic. No negative effect of the mimic on the pollination success of the model was detected. We propose that changes in pollinator flight behaviour, rather than pollinator conditioning, are likely to account for negative frequency-dependent reproductive success in deceptive orchids.

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Citations

Aug 27, 2009·Journal of Mathematical Biology·Kristan Alexander Schneider
Feb 3, 2012·Proceedings. Biological Sciences·Ethan NewmanSteven D Johnson
Jan 31, 2014·Proceedings. Biological Sciences·Marinus L de Jager, Allan G Ellis
Aug 30, 2008·Theoretical Population Biology·Kristan A Schneider
Nov 7, 2006·The New Phytologist·Jeff Ollerton, Robert A Raguso
Feb 13, 2009·The New Phytologist·Bruce Anderson, Steven D Johnson
May 12, 2007·Evolution; International Journal of Organic Evolution·Ryan Calsbeek, Thomas B Smith
Apr 5, 2013·The Journal of Animal Ecology·Nelly Rodríguez-PeñaJorge E Schondube
Feb 2, 2017·Plant Biology·K J Duffy, S D Johnson
Oct 31, 2019·Biological Reviews of the Cambridge Philosophical Society·Bruce Anderson, Marinus L de Jager
May 19, 2020·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Avery L RussellDaniel R Papaj
Jul 25, 2009·Critical Reviews in Microbiology·Philip A O'BrienGiles E StJ Hardy
Apr 16, 2017·Molecular Phylogenetics and Evolution·Jenny K ArchibaldMark E Mort

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