Utilizad este identificador para citar o enlazar este documento: http://hdl.handle.net/2072/252112

Relationship between floral colour and pollinator composition in four plant communities
Reverté Saiz, Sara
Bosch Gras, Jordi; Retana Alumbreros, Javier
Pollinators use a variety of floral cues to locate resources, but the relative importance of these different cues on pollinator foraging decisions is unclear. However, floral colour is undoubtedly one of the most important, as evidenced in previous works revealing the importance of floral colour on pollinator choices and determining flower visitor composition. Our purpose is to establish whether there is a relationship between flower colour and pollinator composition in natural communities. We measured the floral reflectance spectrum of 109 plant populations, from 300 to 700 nm, and divided it in four broad bands of 100 nm each. We found a phylogenetic signal on floral colour variables, and considered this in our analyses. Our results show a lack of concordance between colour spectra and pollinator assemblages. Nevertheless, this work proves that colour determines plant-pollinator relationships in some degree. Thus, particular pollinator groups display preferences for certain bands of the colour spectrum. These preferences match those expected from the pollination syndromes theory. Future work on this issue should combine floral colour along with other floral traits, to assess the importance of the combination of the main floral features for determining pollinator attraction and behaviour together.
574 - Ecologia general i biodiversitat
Pol·linització -- Investigació
Pol·linització per insectes
Color de les flors
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37 p.

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