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Orchid pollination by sexual swindle

机译:兰花通过性欺骗授粉

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The flowers of Ophrys orchids mimic receptive females of usually only one pollinator species. Males of this species are attracted primarily by the odour of a flower and transfer the pollinia during so-called 'pseudocopulations' with the flowers. We have found that flowers of O. sphegodes produce the same compounds and in similar relative proportions as are found in the sex pheromone of its pollinator species, the solitary bee Andrena nigroaenea. Common straight-chain saturated and unsaturated hydrocarbons are the key components in this chemical mimicry, which seems to be an economical means of pollinator attraction.
机译:Ophrys兰花的花模仿通常只有一种授粉物种的雌性。该物种的雄性主要被花的气味所吸引,并在所谓的“假交配”过程中转移花粉。我们已经发现,信天翁的花产生与其授粉物种单生蜜蜂Andrena nigroaenea的性信息素中相同的化合物和相对比例。常见的直链饱和和不饱和烃是该化学模拟中的关键成分,这似乎是吸引传粉者的一种经济方法。

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