Nectar is an important floral resource in the establishment of plant-pollinator interactions. Recent studies have shown that nectariferous tissues are independent of the ABC model of floral development and that ecological interactions can modify their expression. In this sense, it would be interesting to study generalist species in relation to nectar production and nectary morpho-anatomy to verify the strategies used to attract different pollinator groups. We recorded nectar production dynamics in Aechmea vanhoutteana (Bromeliaceae) from a morpho-functional and ultrastructural perspective. We observed different species of hummingbirds, bees and butterflies visiting flowers of A.vanhoutteana, and their frequency varied throughout floral anthesis. The nectar volume and quantity of sugar also varied significantly during anthesis, and this spatial and temporal variability seems to be related to an increase in bee visits, representing an important aspect of the reproductive strategy of this species, since bees can fly longer distances than the observed hummingbirds (although both have territorial behaviours). Thus, it can be suggested that anatomical and physiological nectar traits may be related to pollen flow, an important aspect of the reproductive strategy of A. vanhoutteana, suggesting plant resource allocation for optimizing reproduction through nectar production.

中文翻译：

---

花蜜作为操纵剂：花蜜性状如何影响巴西大西洋森林的凤梨科Aechmea vanhoutteana的授粉媒介群的变化

花蜜是建立植物-授粉媒介相互作用的重要花卉资源。最近的研究表明，油桃组织与花卉发育的ABC模型无关，并且生态相互作用可以修饰它们的表达。从这个意义上讲，研究与花蜜生产和蜜腺形态解剖学有关的通才物种将是有趣的，以验证用于吸引不同传粉媒介群体的策略。我们记录在花蜜生产动态附生凤梨属vanhoutteana从吗啉官能和超微结构透视（凤梨科）。我们观察到不同种类的蜂鸟，蜜蜂和蝴蝶探访A.vanhoutteana的花朵，并且在整个花期花期中它们的频率都不同。花蜜的糖蜜量和糖量在花期也有很大变化，这种时空变化似乎与蜜蜂访视的增加有关，这代表了该物种繁殖策略的重要方面，因为蜜蜂的飞行距离比蜜蜂长。观察到的蜂鸟（尽管它们都有领土行为）。因此，可以认为解剖和生理性花蜜性状可能与花粉流动有关，而花粉流动是A. vanhoutteana繁殖策略的重要方面，表明植物资源分配可以优化通过花蜜生产的繁殖。