Data from: Within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots ...

• Main Authors: Kok, Eva Marina Anna, Burant, Joseph B., Dekinga, Anne, Manche, Petra, Saintonge, Darren, Piersma, Theunis, Mathot, Kimberley J.
• Format: Dataset
• Language: English
• Published: Dryad 2019
• Subjects: state-behaviour feedbacks; Calidris canutus islandica; within-individual variation; Behavioral development; consistent among-individual differences; Ecology physiological; Ecology behavioral; Calidris canutus; Red Knot
• Online Access: https://dx.doi.org/10.5061/dryad.dn28cn6; https://datadryad.org/stash/dataset/doi:10.5061/dryad.dn28cn6

Abstract: Age-related increases in the repeatable expression of labile phenotypic traits are often assumed to arise from an increase in among-individual variance due to differences in developmental plasticity or by means of state-behaviour feedbacks. However, age-related increases in repeatability could also arise from a decrease in within-individual variance as a result of stabilizing trait expression, i.e. canalization. Here we describe age-related changes in within- and among-individual variance components in two correlated traits, gizzard mass and exploration behavior, in a medium-sized shorebird, the red knot (Calidris canutus). Increased repeatability of gizzard mass came about due to an increase in among-individual variance, unrelated to differences in developmental plasticity, together with decreases in within-individual variance, consistent with canalization. We also found canalization of exploration, but no age-related increase in overall repeatability, which suggests that showing predictable ... : kok et al2019_AmNat data within-indiv canalization datafileData filekok et al2019_AmNat data within-indiv canalization.txtkok et al2019_AmNat within-indiv canalization_RscriptR scriptkok et al2019_AmNat within-indiv canalization.R ...