Floral signaling or attraction? A chemical approach on pollination
Abstract
Interactions of organisms and their environment are basically made by means of physical, informative, and trophic processes. In pollination systems, at least the informative process happens, and it may either allow the flower finding or its association with some kind of exploitable resource. Since the attraction implies in the existence of signals that communicate an emissary with a receptor, even when some of those signals are present in the resource, it essentially takes part in pollination at the trophic level. The informative process is sounderstood as mediated by the different kind of signals emitted by the flowers, independent of the existence or even the association with some kind of floral resource. In this sense, more conclusive answers in pollination ecology studies demand and experimental design that allows a straight variable control, and Canonic Correspondence Analysis (CCA) plays an important role in getting advances over the exploratory approaches. These kinds of researches must include a wide species number that satisfactory represents the local community diversity, and may also be used in the search for phylletic relationships among the plant and pollinator taxonomic groups, as evidences of non-random patterns among lots of stochastic ones.
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