Ní féidir le baill ach ár leabharlann scannán agus físe a shruthlú nó a íoslódáil
Lean ort ag faire SAOR IN AISCE ➞Tógann sé níos lú ná 1 nóiméad chun Cláraigh a dhéanamh ansin is féidir leat taitneamh a bhaint as Teidil Scannáin & Teilifíse Neamhtheoranta.
Raumkonkurrenz bei der Prachtlibelle Calopteryx haemorrhoidalis 1991 Rochtain Neamhtheoranta In Aisce
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.
Runtime: 6 nóiméad
Cáilíocht: HD
Scaoileadh: Jan 01, 1991
Tír: Germany
Teanga: Deutsch
