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Eucera barbiventris (Apidae) - Pseudokopulation auf Ophrys scolopax (Orchidaceae), Pollinienentnahme und Pollination   [Other Title]

Eucera barbiventris (Apidae) - Pseudocopulation on Ophrys scolopax (Orchidaceae), Removing Pollinaria and Pollination   [Title Translation]
Produksjonsår: 1983
Sjanger: Documentary Film
Innspillingssted: n/a

Credits
Production company: IWF (Göttingen)
First released by: IWF (Göttingen)
Distributor: IWF (Göttingen)
Author: Hannes F. Paulus
  Claudia Gack


nøkkelord: Biene, Eucera barbiventris, Langhornbiene, Langhornbiene, Mimikry, Ophrys scolopax, Pollinien, Pseudokopulation, Ragwurz, Insect Orchis, Longhorn Bee
The mechanism for pollination of the orchid genus Ophrys is based on female mimicry by the flower. Hymenopteran males are attracted to the flower, which mimics signals that release mating behaviour (olfactory, optical and tactical) and the males attempt to copulate with the flower (pseudocopulation). In the process the pollinia become attached to the male or the pollen packet is transferred from the male to the stigma. The attraction of the males is highly soecific and each Ophrys species generally has only one pollinator species. The pollinator thus serves as a premating isolating mechanism for these orchids through which bastardization is generally prevented.

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