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Eucera barbiventris (Apidae) - Pseudokopulation auf Ophrys scolopax (Orchidaceae), Pollinienentnahme und Pollination

Formal Metadata

Title
Eucera barbiventris (Apidae) - Pseudokopulation auf Ophrys scolopax (Orchidaceae), Pollinienentnahme und Pollination
Alternative Title
Eucera barbiventris (Apidae) - Pseudocopulation on Ophrys scolopax (Orchidaceae), Removing Pollinaria and Pollination
Author
License
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF SignatureE 2794
Publisher
Release Date
Language
Producer
Production Year1983

Technical Metadata

IWF Technical DataFilm, 16 mm, 62 m ; F, 6 min

Content Metadata

Subject Area
Genre
Abstract
German
German
In Südspanien (Malaga) bestäubt die Langhornbiene Eucera barbiventris die Ragwurz Ophrys scolopax. Die Pollinien werden beim Kopulationsversuch am Kopf angeheftet. Nach dem Welken der Pollinien berühren diese bei einem erneuten Blütenbesuch die Narbe, so daß die Bestäubung erfolgt. Mit Zeitdehnung.
English
English
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.
Keywords
German
German
English
English
IWF Classification
German
German
English
English