The effect of the chemical environment on interactions in groups of crayfish

Autor: Blair W. Patullo, David L. Macmillan, Helena P. Baird
Rok vydání: 2007
Předmět:
Zdroj: Marine and Freshwater Behaviour and Physiology. 40:183-188
ISSN: 1029-0362
1023-6244
DOI: 10.1080/10236240701556992
Popis: Most of our knowledge of social behaviour in crustaceans stems from observations of pairs of animals engaged in conflict. Less consideration has been given to the dynamics of group behaviour. We investigated whether chemical signals affect the dynamic of groups of Cherax destructor. Animals were exposed to odours collected from male, female, moulted or dominant crayfish, or from fish. We observed agonistic encounters in the group during a 15 min period after the introduction of the odour. There was a decrease in threat behaviours when the male odour was added. We conclude from this that an olfactory stimulus can affect the dynamic of group interactions and the results suggest that the outcome is likely to be different from that obtained with paired or single individuals.
Databáze: OpenAIRE
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