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Allotropie   [Other Title]

Allotropy   [Other Title]
Anthriscus silvestris (Umbelliferae) - Pollination by Several Diptera and Hymenoptera   [Title Translation]
Anthriscus silvestris (Umbelliferae) - Pollination durch verschiedene Dipteren und Hymenopteren   [Other Title]
Produksjonsår: 1971
Sjanger: Documentary Film
Innspillingssted: n/a

Credits
Distributor: IWF (Göttingen)
Author: Stefan Vogel
First released by: IWF (Göttingen)
Production company: FWU (München)
Editing: Horst Wittmann
Photography: G. Schimanski


nøkkelord: Allotropie, Anthriscus silvestris, Schwebfliege, Wespe, Wiesenkerbel, Hover-Fly, Wild Chervil
Insect activity on the umbels of Anthriscus silvestris (Cow Parsley, Umbelliferae, Apiaceae) is shown as an example of pollination of allotropous (allophilic) blossoms with open nectar, by a series of low-specialized visitors. Structure and floral stages of the single flower as well as the behaviour of insects, especially hover-flies feeding nectar and pollen, are demonstrated in detail.

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