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First records of pollinators of two co-occurring Mediterranean Apocynaceae.

  • Anno di pubblicazione: 2011
  • Tipologia: Articolo in rivista (Articolo in rivista)
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This article presents results of a field survey of pollinators of two Apocynaceae, Periploca laevigata subsp. angustifolia (Labill.)Markgraf (Periplocoideae) and Caralluma europaea (Guss.) N.E.Br. Asclepiadoideae) co-occurring on Lampedusa Island, Mediterranean sea. Fifteen species within nine families of Diptera have been identified as pollinators of the two plants. The families involved are Tephritidae, Milichiidae, Trixoscelididae, cathophagidae, Anthomyiidae, Muscidae, Calliphoridae, Sarcophagidae, Rhinophoridae. Families of Muscidae and Sarcophagidae are the more represented, respectively with four and three species. P. laevigata subsp. angustifolia seems to have a broader spectrum of pollinators, with 12 species of Diptera involved, while C. europaea has 8 species of Diptera as pollinators. Five species of Diptera are shared between the two plant species. The presented data are the first records of pollinators for P. laevigata subsp. angustifolia and C. europaea and confirm that both taxa are fly pollinated, though they do not conform exactly to the sapromyiophilous syndrome. The number of pollinators identified indicated that the morphological and functional floral specialization of the two taxa cover a wide number of pollinators with a similar biology.