The social relationships of twin common marmosets (Callithrix jacchus) and their breeding success |
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Authors: | Alison Woodcock |
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Institution: | (1) Present address: University of Reading, UK |
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Abstract: | In a series of five experiments, female/female twin and male/male twin common marmosets were observed in each of the following
social situations: as offspring in their respective family groups; housed together as twins; in competition for a mate and
in the heterosexual pairs resulting from this competition. Quantitative records were made of their behaviour. These were then
related to winning or losing the competition for a mate. Individuals who demonstrated more “assertive” behaviour and won the
competition (winners) were not in every experiment faster to produce and rear offspring than were the less “assertive” animals
(losers). Categories of behaviour described as “assertive” predicted the outcome of the competition in most cases, but were
not good indicators of future breeding potential. |
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Keywords: | |
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