[Changes in the readiness for sexual and aggressive action of the sword tail Xiphophorus helleri (Pisces, Poeciliidae) under the influence of social isolation]. 1977

Röhrs W-H

Social deprivation for 3 to 112 days caused an increase in copulation attempts and other motivational changes of sexual activities. Furthermore, it could be demonstrated that the tendencies for nipping, backing, copulation attempts, and gonopodial swinging fluctuated independently as a result of non-release of these activities. A rise in copulation tendency does not necessarily lead to increased aggressiveness. In the social hierarchy inferior individuals exhibited the highest levels of sexual and aggressive responsiveness.

UI MeSH Term Description Entries
D008297 Male Males
D005260 Female Females
D005399 Fishes A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000374 Aggression Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism. Aggressions
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001522 Behavior, Animal The observable response an animal makes to any situation. Autotomy Animal,Animal Behavior,Animal Behaviors
D012726 Sexual Behavior, Animal Sexual activities of animals. Mating Behavior, Animal,Sex Behavior, Animal,Animal Mating Behavior,Animal Mating Behaviors,Animal Sex Behavior,Animal Sex Behaviors,Animal Sexual Behavior,Animal Sexual Behaviors,Mating Behaviors, Animal,Sex Behaviors, Animal,Sexual Behaviors, Animal
D012737 Sex Factors Maleness or femaleness as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or effect of a circumstance. It is used with human or animal concepts but should be differentiated from SEX CHARACTERISTICS, anatomical or physiological manifestations of sex, and from SEX DISTRIBUTION, the number of males and females in given circumstances. Factor, Sex,Factors, Sex,Sex Factor
D012934 Social Isolation The separation of individuals or groups resulting in the lack of or minimizing of social contact and/or communication. This separation may be accomplished by physical separation, by social barriers and by psychological mechanisms. In the latter, there may be interaction but no real communication. Isolation, Social,Social Exclusion,Exclusion, Social,Social Exclusions

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Röhrs W-H
December 1978, Evolution; international journal of organic evolution,
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