Elterliche Merkmale im Balzverhalten von Schwertträger-Bastarden - Xiphophorus helleri, Xiphophorus montezumae

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Video in TIB AV-Portal: Elterliche Merkmale im Balzverhalten von Schwertträger-Bastarden - Xiphophorus helleri, Xiphophorus montezumae

Formal Metadata

Title
Elterliche Merkmale im Balzverhalten von Schwertträger-Bastarden - Xiphophorus helleri, Xiphophorus montezumae
Alternative Title
Parental Characteristics in the Courtship Behaviour of Hybrid Swordtails Xiphophorus helleri, Xiphophorus montezumae
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 Signature
D 1178
Publisher
Release Date
1975
Language
German
Producer
Universität Hamburg, Zoologisches Institut
IWF
Production Year
1973

Technical Metadata

IWF Technical Data
Film, 16 mm, LT, 89 m ; SW, 8 1/2 min

Content Metadata

Subject Area
Abstract
Darstellung der unterschiedlichen Balzverhalten des Grünen und des Montezuma-Schwertträgers. Vergleich dieser mit der Balz ihres F[1]-Hybriden, die zusammengesetzt ist aus der Balz der Stammarten. Erbgang des Verhaltens bis zum F[2]-Hybriden. (Vgl. Film D 1179).
As an introduction, the males of the Green Swordtail (Xiphophorus helleri) and the Montezuma Swordtail (Xiphophorus montezumae cortezi) and their hybrids are presented. The courtship patterns of the two species are very different. The F[1] hybrids show behavioural patterns of both parental species. When sexual motivation is low, courtship behaviour is similar to Xiphophorus montezumae cortezi; higher sexual motivation produces courtship behaviour exactly like Xiphophorus helleri. On the example of sword-bending during courtship, the ratio of separation in the F[2] generation is demonstrated using trick photography. The results shows that the behavioural differences are controlled by polygenes.
Keywords Zahnkarpfen, Lebendgebärende Schwertträger / Montezumaschwertträger Xiphophorus montezumae Schwertträger / Grüner Schwertträger Xiphophorus helleri Vererbung Kreuzung Hybride Bastard experimentelle Verhaltensforschung / Pisces Balz / Atheriniformes experimental behaviour research / Pisces hybrid hybridization heredity crossbreed courtship / Atheriniformes Xiphophorus helleri swordtail / green Swordtail green swordtail Xiphophorus montezumae Swordtail / Montezuma Swordtail Montezuma Swordtail

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