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      Adult feeding by holometabolous insects: pollen and nectar as complementary nutrient sources for Rhingia campestris (Diptera: Syrphidae).

      1
      Oecologia
      Springer Nature
      Holometabolous insects, Nectar, Nutritional requirements, Pollen, Rhingia campestris

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          Abstract

          Examination of the gut contents of adult Rhingia campestris reveals that there are considerable differences in the relative amounts of pollen and nectar ingested by individual insects. Pollen, a rich protein source, is required most by females, particularly during those stages of ovarial development when yolk deposition occurs. Nectar, which is mainly carbohydrate, is required in large amounts by males, and is also required by females before and after oogenesis. These results are discussed in relation to the likely nutritional needs of the flies, and it is suggested that similar feeding patterns may be found in a variety of other flower visiting insects. Finally, reference is made to the problems of making ecological assumptions about feeding behaviour on the basis of the morphological attributes of the mouthparts.

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          Author and article information

          Journal
          Oecologia
          Oecologia
          Springer Nature
          1432-1939
          0029-8549
          Nov 1989
          : 81
          : 3
          Affiliations
          [1 ] Department of Zoology, University of Oxford, Oxford, UK.
          Article
          10.1007/BF00377084
          10.1007/BF00377084
          28311189
          b7582147-1eac-4125-847f-8b82f6baf0f7
          History

          Pollen,Nectar,Holometabolous insects,Rhingia campestris,Nutritional requirements

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