The use of plasma metabolites to predict weekly body-mass change in Red Knots
The Red Knot (Calidris canutus) is a long-distance migrant breeding on tundra in the high Arctic and wintering along temperate and tropical coasts. Preflight fueling rate is a major determinant of successful migration, yet individual fueling rates are impossible to determine because Red Knots cannot...
Published in: | The Condor |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2009
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Online Access: | https://hdl.handle.net/11370/0209445a-5f67-44a5-bf8b-b7085cf09ee3 https://research.rug.nl/en/publications/0209445a-5f67-44a5-bf8b-b7085cf09ee3 https://doi.org/10.1525/cond.2009.080112 https://pure.rug.nl/ws/files/6730469/2009CondorDietz.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/0209445a-5f67-44a5-bf8b-b7085cf09ee3 2024-09-09T19:27:24+00:00 The use of plasma metabolites to predict weekly body-mass change in Red Knots Dietz, Maurine W. Jenni-Eiermann, Susanne Piersma, Theunis 2009-02 application/pdf https://hdl.handle.net/11370/0209445a-5f67-44a5-bf8b-b7085cf09ee3 https://research.rug.nl/en/publications/0209445a-5f67-44a5-bf8b-b7085cf09ee3 https://doi.org/10.1525/cond.2009.080112 https://pure.rug.nl/ws/files/6730469/2009CondorDietz.pdf eng eng https://research.rug.nl/en/publications/0209445a-5f67-44a5-bf8b-b7085cf09ee3 info:eu-repo/semantics/openAccess Dietz , M W , Jenni-Eiermann , S & Piersma , T 2009 , ' The use of plasma metabolites to predict weekly body-mass change in Red Knots ' , Condor , vol. 111 , no. 1 , pp. 88-99 . https://doi.org/10.1525/cond.2009.080112 body-mass change Calidris canutus fueling rate plasma metabolite Red Knot shorebird triglyceride uric acid beta-hydroxybutyrate LONG-DISTANCE MIGRANT BIVALVE MACOMA-BALTHICA CALIDRIS-CANUTUS WESTERN SANDPIPERS LIPID METABOLITES PASSERINE BIRDS SOFT PARTS WADDEN SEA MIGRATION article 2009 ftunigroningenpu https://doi.org/10.1525/cond.2009.080112 2024-06-17T15:52:29Z The Red Knot (Calidris canutus) is a long-distance migrant breeding on tundra in the high Arctic and wintering along temperate and tropical coasts. Preflight fueling rate is a major determinant of successful migration, yet individual fueling rates are impossible to determine because Red Knots cannot be recaptured easily. These problems can be overcome by estimating changes in body mass from plasma metabolites. Plasma metabolites are, however, sensitive to stress and time since last meal, limiting studies to situations where birds can be bled almost immediately after capture. Such sampling is almost impossible in the field, where Red Knots are often captured with mist nets in darkness. This study on captive Red Knots investigates whether plasma metabolites obtained from blood samples taken up to 3 hr after capture can be used to predict individual long-term (weekly) body-mass changes during the natural spring preflight fueling period. Triglyceride decreased and beta-hydroxybuty rate increased with time since capture, and these changes varied with time since start of the spring fueling period. beta-Hydroxybutyrate and uric acid were correlated with weekly body-mass change, but triglyceride was not. Triglyceride was correlated with overall body mass. Weekly body-mass change was best predicted with a model including all metabolites and body mass. Time of blood sampling (immediately or 3 hr after capture) did not affect the accuracy of the predictions. The predictions were not accurate enough to allow comparisons of individuals; they should be used only to compare groups. Article in Journal/Newspaper Arctic Calidris canutus Red Knot Tundra University of Groningen research database Arctic The Condor 111 1 88 99 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
body-mass change Calidris canutus fueling rate plasma metabolite Red Knot shorebird triglyceride uric acid beta-hydroxybutyrate LONG-DISTANCE MIGRANT BIVALVE MACOMA-BALTHICA CALIDRIS-CANUTUS WESTERN SANDPIPERS LIPID METABOLITES PASSERINE BIRDS SOFT PARTS WADDEN SEA MIGRATION |
spellingShingle |
body-mass change Calidris canutus fueling rate plasma metabolite Red Knot shorebird triglyceride uric acid beta-hydroxybutyrate LONG-DISTANCE MIGRANT BIVALVE MACOMA-BALTHICA CALIDRIS-CANUTUS WESTERN SANDPIPERS LIPID METABOLITES PASSERINE BIRDS SOFT PARTS WADDEN SEA MIGRATION Dietz, Maurine W. Jenni-Eiermann, Susanne Piersma, Theunis The use of plasma metabolites to predict weekly body-mass change in Red Knots |
topic_facet |
body-mass change Calidris canutus fueling rate plasma metabolite Red Knot shorebird triglyceride uric acid beta-hydroxybutyrate LONG-DISTANCE MIGRANT BIVALVE MACOMA-BALTHICA CALIDRIS-CANUTUS WESTERN SANDPIPERS LIPID METABOLITES PASSERINE BIRDS SOFT PARTS WADDEN SEA MIGRATION |
description |
The Red Knot (Calidris canutus) is a long-distance migrant breeding on tundra in the high Arctic and wintering along temperate and tropical coasts. Preflight fueling rate is a major determinant of successful migration, yet individual fueling rates are impossible to determine because Red Knots cannot be recaptured easily. These problems can be overcome by estimating changes in body mass from plasma metabolites. Plasma metabolites are, however, sensitive to stress and time since last meal, limiting studies to situations where birds can be bled almost immediately after capture. Such sampling is almost impossible in the field, where Red Knots are often captured with mist nets in darkness. This study on captive Red Knots investigates whether plasma metabolites obtained from blood samples taken up to 3 hr after capture can be used to predict individual long-term (weekly) body-mass changes during the natural spring preflight fueling period. Triglyceride decreased and beta-hydroxybuty rate increased with time since capture, and these changes varied with time since start of the spring fueling period. beta-Hydroxybutyrate and uric acid were correlated with weekly body-mass change, but triglyceride was not. Triglyceride was correlated with overall body mass. Weekly body-mass change was best predicted with a model including all metabolites and body mass. Time of blood sampling (immediately or 3 hr after capture) did not affect the accuracy of the predictions. The predictions were not accurate enough to allow comparisons of individuals; they should be used only to compare groups. |
format |
Article in Journal/Newspaper |
author |
Dietz, Maurine W. Jenni-Eiermann, Susanne Piersma, Theunis |
author_facet |
Dietz, Maurine W. Jenni-Eiermann, Susanne Piersma, Theunis |
author_sort |
Dietz, Maurine W. |
title |
The use of plasma metabolites to predict weekly body-mass change in Red Knots |
title_short |
The use of plasma metabolites to predict weekly body-mass change in Red Knots |
title_full |
The use of plasma metabolites to predict weekly body-mass change in Red Knots |
title_fullStr |
The use of plasma metabolites to predict weekly body-mass change in Red Knots |
title_full_unstemmed |
The use of plasma metabolites to predict weekly body-mass change in Red Knots |
title_sort |
use of plasma metabolites to predict weekly body-mass change in red knots |
publishDate |
2009 |
url |
https://hdl.handle.net/11370/0209445a-5f67-44a5-bf8b-b7085cf09ee3 https://research.rug.nl/en/publications/0209445a-5f67-44a5-bf8b-b7085cf09ee3 https://doi.org/10.1525/cond.2009.080112 https://pure.rug.nl/ws/files/6730469/2009CondorDietz.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Calidris canutus Red Knot Tundra |
genre_facet |
Arctic Calidris canutus Red Knot Tundra |
op_source |
Dietz , M W , Jenni-Eiermann , S & Piersma , T 2009 , ' The use of plasma metabolites to predict weekly body-mass change in Red Knots ' , Condor , vol. 111 , no. 1 , pp. 88-99 . https://doi.org/10.1525/cond.2009.080112 |
op_relation |
https://research.rug.nl/en/publications/0209445a-5f67-44a5-bf8b-b7085cf09ee3 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1525/cond.2009.080112 |
container_title |
The Condor |
container_volume |
111 |
container_issue |
1 |
container_start_page |
88 |
op_container_end_page |
99 |
_version_ |
1809896834106130432 |