Within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots
Age-related increases in the repeatable expression of labile phenotypic traits are often assumedto arise from an increase in among-individual variance due to differences in developmentalplasticity or by means of state-behavior feedbacks. However, age-related increases inrepeatability could also aris...
Published in: | The American Naturalist |
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Language: | English |
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Online Access: | https://www.vliz.be/imisdocs/publications/11/338311.pdf |
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ftnioz:oai:imis.nioz.nl:312001 2023-05-15T15:48:26+02:00 Within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots Kok, E.M.A. Burant, J.B. Dekinga, A. Manche, P. Saintonge, D. Piersma, T. Mathot, K.J. 2019 application/pdf https://www.vliz.be/imisdocs/publications/11/338311.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000485326600004 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1086/704593 https://www.vliz.be/imisdocs/publications/11/338311.pdf info:eu-repo/semantics/openAccess %3Ci%3EAmerican+Naturalist+194%284%29%3C%2Fi%3E.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1086%2F704593%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1086%2F704593%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftnioz https://doi.org/10.1086/704593 2022-05-01T14:10:11Z Age-related increases in the repeatable expression of labile phenotypic traits are often assumedto arise from an increase in among-individual variance due to differences in developmentalplasticity or by means of state-behavior feedbacks. However, age-related increases inrepeatability could also arise from a decrease in within-individual variance as a result ofstabilizing trait expression, i.e. canalization. Here we describe age-related changes in withinandamong-individual variance components in two correlated traits, gizzard mass andexploration behavior, in a medium-sized shorebird, the red knot (Calidris canutus). Increasedrepeatability of gizzard mass came about due to an increase in among-individual variance,unrelated to differences in developmental plasticity, together with decreases in withinindividualvariance, consistent with canalization. We also found canalization of exploration, butno age-related increase in overall repeatability, which suggests that showing predictableexpression of exploration behavior may be advantageous from a very young age onward.Contrasts between juveniles and adults in the first year after their capture provide support forthe idea that environmental conditions play a key role in generating among-individual variationin both gizzard mass and exploration behavior. Our study shows that stabilization of traitsoccurs under constant conditions: with increased exposure to predictable cues, individuals maybecome more certain in their assessment of the environment allowing traits to becomecanalized. Article in Journal/Newspaper Calidris canutus Red Knot NIOZ Repository (Royal Netherlands Institute for Sea Research) The American Naturalist 194 4 455 469 |
institution |
Open Polar |
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NIOZ Repository (Royal Netherlands Institute for Sea Research) |
op_collection_id |
ftnioz |
language |
English |
description |
Age-related increases in the repeatable expression of labile phenotypic traits are often assumedto arise from an increase in among-individual variance due to differences in developmentalplasticity or by means of state-behavior feedbacks. However, age-related increases inrepeatability could also arise from a decrease in within-individual variance as a result ofstabilizing trait expression, i.e. canalization. Here we describe age-related changes in withinandamong-individual variance components in two correlated traits, gizzard mass andexploration behavior, in a medium-sized shorebird, the red knot (Calidris canutus). Increasedrepeatability of gizzard mass came about due to an increase in among-individual variance,unrelated to differences in developmental plasticity, together with decreases in withinindividualvariance, consistent with canalization. We also found canalization of exploration, butno age-related increase in overall repeatability, which suggests that showing predictableexpression of exploration behavior may be advantageous from a very young age onward.Contrasts between juveniles and adults in the first year after their capture provide support forthe idea that environmental conditions play a key role in generating among-individual variationin both gizzard mass and exploration behavior. Our study shows that stabilization of traitsoccurs under constant conditions: with increased exposure to predictable cues, individuals maybecome more certain in their assessment of the environment allowing traits to becomecanalized. |
format |
Article in Journal/Newspaper |
author |
Kok, E.M.A. Burant, J.B. Dekinga, A. Manche, P. Saintonge, D. Piersma, T. Mathot, K.J. |
spellingShingle |
Kok, E.M.A. Burant, J.B. Dekinga, A. Manche, P. Saintonge, D. Piersma, T. Mathot, K.J. Within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots |
author_facet |
Kok, E.M.A. Burant, J.B. Dekinga, A. Manche, P. Saintonge, D. Piersma, T. Mathot, K.J. |
author_sort |
Kok, E.M.A. |
title |
Within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots |
title_short |
Within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots |
title_full |
Within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots |
title_fullStr |
Within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots |
title_full_unstemmed |
Within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots |
title_sort |
within-individual canalization contributes to age-related increases in trait repeatability: a longitudinal experiment in red knots |
publishDate |
2019 |
url |
https://www.vliz.be/imisdocs/publications/11/338311.pdf |
genre |
Calidris canutus Red Knot |
genre_facet |
Calidris canutus Red Knot |
op_source |
%3Ci%3EAmerican+Naturalist+194%284%29%3C%2Fi%3E.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1086%2F704593%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1086%2F704593%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000485326600004 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1086/704593 https://www.vliz.be/imisdocs/publications/11/338311.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1086/704593 |
container_title |
The American Naturalist |
container_volume |
194 |
container_issue |
4 |
container_start_page |
455 |
op_container_end_page |
469 |
_version_ |
1766383410227445760 |