Raumkonkurrenz bei der Prachtlibelle Calopteryx haemorrhoidalis

The film shows the spatial distribution and the behaviour of the Mediterranean demoiselle Calopteryx haemorrhoidalis on typical reproduction waters. The great importance of suitable perches becomes obvious. These perches, e. g. single rush stems, are used by immature, hunting individuals as well as by reproductive males that are controlling territories from these sites. The latter chase all other individuals, the result being a spatial segregation between immature and reproductive specimens during the day. Typical behaviour, such as threatening, courting, copulation, and oviposition is shown in different film speeds.

• Georg RüppellProducer · Director

Release date

January 1, 1991

Status

Released

Original language

German

Runtime

6m

Genres

Documentary

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