Evidence for intersexual chemical mimicry in a dioecious plant

Proffit, Magali (author): Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Växtskyddsbiologi,Department of Plant Protection Biology

(creator_code:org_t)

2012-07-05
2012
English.
In: Ecology Letters. - : Wiley. - 1461-023X .- 1461-0248. ; 15, s. 978-985

Related links:: https://res.slu.se/i...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

The dioecious Mediterranean fig, Ficus carica, displays a unique phenology in which males sometimes bloom synchronously with females (in summer), and sometimes not (in spring). Ficus carica is engaged in an obligatory mutualism with a specific pollinating wasp, which reproduces only within figs, localising them by their specific scents. We show that scents emitted by male figs show seasonal variation within individual trees. Scents of summer male figs resemble those of the co-flowering females, and are different from those of the same male trees in spring, when female figs are absent. These differences hold even if only compounds electrophysiologically active for pollinators are considered. The similar scents of summer males and females may explain why the rewardless females are still pollinated. These results offer a tractable model for future studies of intersexual chemical mimicry in mutualistic pollination interactions.

About the subject

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