| Dominance hierarchy-dependent behavioural plasticity of crayfish avoidance reactions. | |
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MedLine Citation:
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PMID: 21795568 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Crayfish showed avoidance reactions when mechanical stimulation was applied to their tailfan. The response pattern of the avoidance reaction was dependent on crayfish size. Small crayfish showed an escape-like dart response while larger crayfish displayed a defensive-like turn response. We show that the response pattern to the same sensory stimulus changed with social status in the small crayfish. Crayfish are territorial animals and a dominant-subordinate relationship was determined when two previously unacquainted animals were paired. This winner-loser hierarchy was observed in pairs of small crayfish. Before fighting, all crayfish showed a dart response following mechanical stimulation of the tailfan. However, the probability of occurrence of a turn response increased significantly in the crayfish that won a fight. This behavioural transition from dart to turn response occurred immediately and was maintained for at least 3 days even if a dominant crayfish was isolated again with no opponent. |
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Authors:
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Sawako Fujimoto; Bunpei Hirata; Toshiki Nagayama |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of experimental biology Volume: 214 ISSN: 1477-9145 ISO Abbreviation: J. Exp. Biol. Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-07-28 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0243705 Medline TA: J Exp Biol Country: England |
Other Details:
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Languages: eng Pagination: 2718-23 Citation Subset: IM |
Affiliation:
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Division of Biological Sciences, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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