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Early temperamental traits in an octopus (Octopus bimaculoides)

Citation

Sinn, DL and Perrin, NA and Mather, JA and Anderson, RC, Early temperamental traits in an octopus (Octopus bimaculoides), Journal of Comparative Psychology, 115, (4) pp. 351-364. ISSN 0735-7036 (2001) [Refereed Article]

DOI: doi:10.1037//0735-7036.115.4.351

Abstract

During their 3rd week of life, 73 Octopus bimaculoides were observed to test whether discrete behaviors could be grouped reliably to reflect dimensions of temperament. Frequencies of behaviors during Week 3 were subjected to principal-components analysis (PCA), resulting in 4 components (active engagement, arousal/readiness, aggression, and avoidance/disinterest) that explain 53% of the variance. Levels of temperamental traits were then evaluated for 37 octopuses using composite scores at 3 time points across the first 9 weeks of life. Profile analysis revealed significant change for the testing group as a whole in trait expression levels from Week 3 to Week 6. Results also suggest a significant effect of relatedness on developing temperamental profiles of octopuses. Discussion focuses on how results apply to the life history of O. bimaculoides and what temperament can reveal about adaptive individuality in a protostome.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Behavioural Ecology
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in Psychology and Cognitive Sciences
ID Code:40432
Year Published:2001
Web of Science® Times Cited:47
Deposited By:Zoology
Deposited On:2006-09-19
Last Modified:2014-06-20
Downloads:0

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