Pollinator attractiveness increases with distance from flowering orchids

Proceedings. Biological Sciences
Bob B M WongFlorian P Schiestl

Abstract

Orchids are extraordinary among plants because many species are pollinated through sexual duplicity by producing flowers that mimic female insects to lure unsuspecting males. Previous work showed that sexual deception by the orchid Chiloglottis trapeziformis can have a negative impact on its wasp pollinator Neozeleboria cryptoides. We report that female wasps may be capable of mitigating the cost of the orchids' deception. Although male wasps quickly habituated to areas planted with unrewarding flower decoys, we found that the effectiveness of the chemical cue used by the wingless females to attract males increases with increasing distance from an orchid patch. The apparent specificity of the males' site-based avoidance strategy means that females emerging in areas occupied by flowering orchids could, potentially, leave the orchid colony by walking to increase their attractiveness.

References

Aug 20, 2002·Proceedings. Biological Sciences·Bob B M Wong, Florian P Schiestl
Oct 18, 2003·Science·Florian P SchiestlWittko Francke

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Citations

Jun 3, 2005·Die Naturwissenschaften·Florian P Schiestl
Apr 10, 2010·Biological Reviews of the Cambridge Philosophical Society·A C Gaskett
Jan 31, 2014·Proceedings. Biological Sciences·Marinus L de Jager, Allan G Ellis
Nov 22, 2012·Ecology and Evolution·Jasmine K JanesRené E Vaillancourt
May 30, 2019·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Adrian G DyerBob B M Wong
Jun 7, 2021·Die Naturwissenschaften·A L Brunton MartinJ C O'Hanlon

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