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Fortpflanzungsbiologie der Wabenkröte Pipa carvalhoi

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Formal Metadata

Title Fortpflanzungsbiologie der Wabenkröte Pipa carvalhoi
Alternative Title Reproductive Biology of Pipa carvalhoi
Author Weygoldt, Peter
Vollmar, Hans
License No Open Access License:
German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties.
DOI 10.3203/IWF/D-1283
IWF Signature D 1283
Publisher IWF (Göttingen)
Release Date 1978
Language German
Producer Peter Weygoldt
Hans Vollmar
IWF
Production Year 1976

Technical Metadata

IWF Technical Data Film, 16 mm, LT, 118 m ; F, 11 min

Content Metadata

Subject Area Life Sciences
Abstract Vorstellung der Tiere, Balzruf der Männchen, Umklammerungskämpfe der Männchen. Weibchen mit geschwollener Rückenhaut, Paarung und Eiablage mit Umdrehung eines Weibchens ohne Männchen, Schlüpfen von Larven, Larvenstadien, Saugschnappen, Metamorphosestadien.
The film shows mating and egg-laying behaviour in the Brasilian toad Pipa carvalhoi. Receptive females can be recognized by their swollen cloaka and thickened dorsal epidermis. The eggs are laid while the pair performs a series of sommersaults; they fall on the female's back and stick to her epidermis. They are further pressed onto the female's back by the male's body and later by stroking movements of the male's feet. Some other movements can be observed which probably have a communicatory function for the coordination of male and female. After a number of hours the female's back is covered with eggs which start to become implanted in her epidermis. 2 to 3 weeks later the tadpoles are born. Immediately they take in air and then start their lives as filter feeders. Within a period of 6 to 8 weeks they grow to a size of 50 to 60 mm and then metamorphose to small froglets.
Keywords Kröte / Wabenkröte
Wabenkröte
Pipa carvalhoi
Balz / Anura
Paarungsrufe
Rufen / Anura
Paarung / Amphibia
Metamorphose / Amphibia
Larven / Amphibia
Fortpflanzung, geschlechtliche / Amphibia
Eiablage / Amphibia
egg-laying / Amphibia
reproduktion, sexual / Amphibia
larvae / Amphibia
metamorphosis / Amphibia
mating / Amphibia
calling / Anura
cating calls
courtship / Anura
Pipa carvalhoi
Brasilian toad
Carvalho's Surinam Toad

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AV-Portal 3.8.0 (dec2fe8b0ce2e718d55d6f23ab68f0b2424a1f3f)