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Reproductive Behaviour in the Stripeless Tree Frog   [Title Translation]

Fortpflanzungsverhalten des Mittelmeer-Laubfrosches   [Other Title]
Rok: 1981
Žánr: Documentary Film
Exteriéry: n/a

Titulky:
Author: Hans Schneider
Producer: Dieter Haarhaus
First released by: IWF (Göttingen)
Distributor: IWF (Göttingen)
Sound: H. Schneider
Production company: IWF (Göttingen)
Editing: Roland Dröscher
Photography: Roland Dröscher


Klíčová slova: Anura, Anura, Anura, Anura, Eiablage, Frosch, geschlechtliche, geschlechtliche Fortpflanzung, Hyla meridionalis, Kaulquappe, Laubfrosch, Laubfrosch, Paarung, Quaken, Rufen, anura, anura, anura, anura, calling, croaking, egg-laying, mating, Mediterranean tree frog, sexual, sexual reproduction, stripeless tree frog, tadpole
Numerous stripeless tree frogs have colonized an artificial reservoir on Tenerife. The large number of individuals becomes apparent only after nighfall when the males gather to call, and then the chorus is uncomparably loud. The procedure of calling can be seen in two males; mating-, territorial- and release-calls with their respective behaviour are demonstrated. Females which are ready to mate allow males to clasp them and begin to lay their eggs in the form of small portions several hours later: The pairs dive at the time of laying. The females assume the laying- or signal-position, let the eggs leave the cloaca and wipe them away with their hind legs; the sinking eggs stick to plants. In addition, the film shows free-swimming larvae of different ages and some of their typical behaviour patterns.

Version 1
Jazyková verze: deu, eng, spa
Zvuk: Sound film
Aspect: n/a
Minutáž: 12 1/2 min

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Druh nosiče: n/a
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Version 2
Jazyková verze: deu, eng, spa
Zvuk: Sound film
Aspect: n/a
Minutáž: 12 1/2 min

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Druh nosiče: n/a
Druh materiálu: n/a
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Informace o právech Práva k filmu mohou být poskytnuta



Version 3
Jazyková verze: deu, eng, spa
Zvuk: Sound film
Aspect: n/a
Minutáž: 12 1/2 min

» 
Délka: 137 m Request Copy Button
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Druh nosiče: n/a
Druh materiálu: n/a
Copyright Information IWF Institut Wissen und Medien gGmbH
Informace o právech Práva k filmu mohou být poskytnuta