Gure film eta bideoteka kideek soilik erreproduzitu edo deskarga dezakete
Jarraitu DOAN ikusten toMinutu bat baino gutxiago behar da erregistratzeko eta mugagabeko film eta telebistako tituluekin gozatu ahal izango duzu.
Raumkonkurrenz bei der Prachtlibelle Calopteryx haemorrhoidalis 1991 Doako sarbide mugagabea
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.
Iraupena: 6 minutu
Kalitatea: HD
Askatu: Jan 01, 1991
Herrialdea: Germany
Hizkuntza: Deutsch