Data from: Diet preferences as the cause of individual differences rather than the consequence
Behavioural variation within a species is usually explained as the consequence of individual variation in physiology. However, new evidence suggests that the arrow of causality may well be in the reverse direction: behaviours such as diet preferences cause the differences in physiological and morpho...
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ftzenodo:oai:zenodo.org:4997794 2024-09-15T18:00:48+00:00 Data from: Diet preferences as the cause of individual differences rather than the consequence Oudman, Thomas Bijleveld, Allert I. Kavelaars, Marwa M. Dekinga, Anne Cluderay, John Piersma, Theunis van Gils, Jan A. 2017-05-10 https://doi.org/10.5061/dryad.2s8rr unknown Zenodo https://doi.org/10.1111/1365-2656.12549 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.2s8rr oai:zenodo.org:4997794 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode radio tag gut TOA shorebirds behavioural syndrome diet choice January 2013 Calidris canutus waders Dosinia isocardia Holocene Loripes lucinalis info:eu-repo/semantics/other 2017 ftzenodo https://doi.org/10.5061/dryad.2s8rr10.1111/1365-2656.12549 2024-07-27T01:42:15Z Behavioural variation within a species is usually explained as the consequence of individual variation in physiology. However, new evidence suggests that the arrow of causality may well be in the reverse direction: behaviours such as diet preferences cause the differences in physiological and morphological traits. Recently, diet preferences were proposed to underlie consistent differences in digestive organ mass and movement patterns (patch residence times) in red knots (Calidris canutus islandica). Red knots are molluscivorous and migrant shorebirds for which the size of the muscular stomach (gizzard) is critical for the food processing rate. In this study, red knots (C. c. canutus, n = 46) were caught at Banc d'Arguin, an intertidal flat ecosystem in Mauritania, and released with radio-tags after the measurement of gizzard mass. Using a novel tracking system (time-of-arrival), patch residence times were measured over a period of three weeks. Whether or not gizzard mass determined patch residence times was tested experimentally by offering 12 of the 46 tagged red knots soft diets prior to release; this reduced an individual's gizzard mass by 20-60%. To validate whether the observed range of patch residence times would be expected from individual diet preferences, we simulated patch residence times as a function of diet preferences via a simple departure rule. Consistent with previous empirical studies, patch residence times in the field were positively correlated with gizzard mass. The slope of this correlation, as well as the observed range of patch residence times, was in accordance with the simulated values. The 12 birds with reduced gizzard masses did not decrease patch residence times in response to the reduction in gizzard mass. These findings suggest that diet preferences can indeed cause the observed among-individual variation in gizzard mass and patch residence times. We discuss how early diet experiences can have cascading effects on the individual expression of both behavioural and physiomorphic ... Other/Unknown Material Calidris canutus Zenodo |
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Open Polar |
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op_collection_id |
ftzenodo |
language |
unknown |
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radio tag gut TOA shorebirds behavioural syndrome diet choice January 2013 Calidris canutus waders Dosinia isocardia Holocene Loripes lucinalis |
spellingShingle |
radio tag gut TOA shorebirds behavioural syndrome diet choice January 2013 Calidris canutus waders Dosinia isocardia Holocene Loripes lucinalis Oudman, Thomas Bijleveld, Allert I. Kavelaars, Marwa M. Dekinga, Anne Cluderay, John Piersma, Theunis van Gils, Jan A. Data from: Diet preferences as the cause of individual differences rather than the consequence |
topic_facet |
radio tag gut TOA shorebirds behavioural syndrome diet choice January 2013 Calidris canutus waders Dosinia isocardia Holocene Loripes lucinalis |
description |
Behavioural variation within a species is usually explained as the consequence of individual variation in physiology. However, new evidence suggests that the arrow of causality may well be in the reverse direction: behaviours such as diet preferences cause the differences in physiological and morphological traits. Recently, diet preferences were proposed to underlie consistent differences in digestive organ mass and movement patterns (patch residence times) in red knots (Calidris canutus islandica). Red knots are molluscivorous and migrant shorebirds for which the size of the muscular stomach (gizzard) is critical for the food processing rate. In this study, red knots (C. c. canutus, n = 46) were caught at Banc d'Arguin, an intertidal flat ecosystem in Mauritania, and released with radio-tags after the measurement of gizzard mass. Using a novel tracking system (time-of-arrival), patch residence times were measured over a period of three weeks. Whether or not gizzard mass determined patch residence times was tested experimentally by offering 12 of the 46 tagged red knots soft diets prior to release; this reduced an individual's gizzard mass by 20-60%. To validate whether the observed range of patch residence times would be expected from individual diet preferences, we simulated patch residence times as a function of diet preferences via a simple departure rule. Consistent with previous empirical studies, patch residence times in the field were positively correlated with gizzard mass. The slope of this correlation, as well as the observed range of patch residence times, was in accordance with the simulated values. The 12 birds with reduced gizzard masses did not decrease patch residence times in response to the reduction in gizzard mass. These findings suggest that diet preferences can indeed cause the observed among-individual variation in gizzard mass and patch residence times. We discuss how early diet experiences can have cascading effects on the individual expression of both behavioural and physiomorphic ... |
format |
Other/Unknown Material |
author |
Oudman, Thomas Bijleveld, Allert I. Kavelaars, Marwa M. Dekinga, Anne Cluderay, John Piersma, Theunis van Gils, Jan A. |
author_facet |
Oudman, Thomas Bijleveld, Allert I. Kavelaars, Marwa M. Dekinga, Anne Cluderay, John Piersma, Theunis van Gils, Jan A. |
author_sort |
Oudman, Thomas |
title |
Data from: Diet preferences as the cause of individual differences rather than the consequence |
title_short |
Data from: Diet preferences as the cause of individual differences rather than the consequence |
title_full |
Data from: Diet preferences as the cause of individual differences rather than the consequence |
title_fullStr |
Data from: Diet preferences as the cause of individual differences rather than the consequence |
title_full_unstemmed |
Data from: Diet preferences as the cause of individual differences rather than the consequence |
title_sort |
data from: diet preferences as the cause of individual differences rather than the consequence |
publisher |
Zenodo |
publishDate |
2017 |
url |
https://doi.org/10.5061/dryad.2s8rr |
genre |
Calidris canutus |
genre_facet |
Calidris canutus |
op_relation |
https://doi.org/10.1111/1365-2656.12549 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.2s8rr oai:zenodo.org:4997794 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.2s8rr10.1111/1365-2656.12549 |
_version_ |
1810437960562114560 |