Journal
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
Volume 66, Issue 11, Pages 1543-1548Publisher
SPRINGER
DOI: 10.1007/s00265-012-1416-2
Keywords
Animal personality; Behavioural syndrome; Correlational selection; Quantitative genetics; Mixed-effect modelling
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This commentary highlights multivariate tools that have been used by evolutionary biologists in the study of syndromes and their evolution and discusses the insights that these methods provide into evolutionary processes relative to the metric 'syndrome deviation' that has recently been proposed by Herczeg and Garamszegi (Behav Ecol Sociobiol 66: 161-169, 2012). We clarify that non-zero phenotypic correlations arise from the joint influences of within-and between-individual correlations, whereas only non-zero between-individual correlations represent behavioural syndromes, and discuss how acknowledgement of this subtle difference between phenotypic and between-individual correlations affects the applicability of syndrome deviation for the study of behavioural syndromes.
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