Many tropical plants are pollinated by birds and several bird phylogenetical lineages have specialised to a nectar diet. The long-assumed, intimate ecological and evolutionary relationship between ornithophilous plants and phenotypically specialised nectarivorous birds has nevertheless been questioned in recent decades, where such plant–pollinator interactions have been shown to be highly generalised.

中文翻译：

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鸟类授粉综合征是植物对亲鸟的适应，但食蜜鸟类没有那么有选择性

许多热带植物由鸟类授粉，一些鸟类系统发育谱系专门用于花蜜饮食。然而，近几十年来，人们对亲鸟植物和表型特化的食蜜鸟类之间长期假设的、密切的生态和进化关系提出了质疑，这种植物-传粉媒介的相互作用已被证明是高度概括的。