Raumkonkurrenz bei der Prachtlibelle Calopteryx haemorrhoidalis
Directed by Georg Rüppell
Reviews
Overview
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.
Other films by Georg Rüppell
Variabilität des Fortpflanzungsverhaltens bei Japanischen Prachtlibellen
1992
Megaloprepus coerulatus (Pseudostigmatidae) - Flug und Fortpflanzungsverhalten
1988
Seevögel von Galapagos - Bewegungsweisen als Ernährungsstrategie
1984
Rana esculenta (Ranidae) - Beuteerwerb
1984
