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Nachfolgeverhalten junger Maulbrüter - Normal und übernormal wirkende Auslöser (Attrappenversuche)

Formal Metadata

Title
Nachfolgeverhalten junger Maulbrüter - Normal und übernormal wirkende Auslöser (Attrappenversuche)
Alternative Title
Contact Reaction of Young Mouth-brooders - Normal and Supernormal Releaser (Dummy Experiments)
Author
License
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF SignatureD 1686
Publisher
Release Date
Language
Other Version
Producer
Production Year1987

Technical Metadata

IWF Technical DataFilm, 16 mm, LT, 119 m ; F, 11 min

Content Metadata

Subject Area
Genre
Abstract
German
German
Oreochromis leucostictus, Buntbarsch. Maulbrüterweibchen entläßt vollentwickelte Jungfische aus dem Maul. Die Jungen folgen der Mutter, oft bis zum Berührungskontakt. Mit Attrappen wird an erfahrungslosen Jungfischen geprüft, wieweit die Faktoren "Bewegung", "Form", "Größe", und "Helligkeit" der Attrappe eine unterschiedliche Auslösewirkung haben. Die Kombination besonders wirksamer Auslöser-Einzelmerkmale wirkt "übernormal", d. h. die Jungfische folgen im Wahlversuch dieser Attrappe stärker als ihrer eigenen aufnahmebereiten Mutter.
English
English
Oreochromis leucostictus. The female mouth brooder releases the fully developed young from the mouth. The young follow their mother, often even touching her. Dummies are used to find out to what extent such factors as movement, shape, size and light intensity of the dummy differ in their releasing effect on unexperienced young fishes. The combination of particularly strong individual releasing characteristics have a "supernormal" effect, i. e., in an experiment where choices are offered, the young follow this dummy more readily than their mother waiting to receive them.
Keywords
German
German
English
English
IWF Classification