Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic
1. Seasonal carry-over effects may be important structuring components of avian life-history cycles. However, little is known on physiological transitions between stages and on phenotypic compromises that may be made at such time to improve fitness. 2. We studied postmigratory body remodelling in re...
Published in: | Functional Ecology |
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Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2012
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Online Access: | https://hdl.handle.net/11370/4e5b1823-c04c-4135-9700-25ed95adaede https://research.rug.nl/en/publications/4e5b1823-c04c-4135-9700-25ed95adaede https://doi.org/10.1111/j.1365-2435.2011.01955.x |
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ftunigroningenpu:oai:pure.rug.nl:publications/4e5b1823-c04c-4135-9700-25ed95adaede 2024-09-09T19:15:10+00:00 Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic Vezina, Francois Williams, Tony D. Piersma, Theunis Morrison, R. I. Guy 2012-04 https://hdl.handle.net/11370/4e5b1823-c04c-4135-9700-25ed95adaede https://research.rug.nl/en/publications/4e5b1823-c04c-4135-9700-25ed95adaede https://doi.org/10.1111/j.1365-2435.2011.01955.x eng eng https://research.rug.nl/en/publications/4e5b1823-c04c-4135-9700-25ed95adaede info:eu-repo/semantics/closedAccess Vezina , F , Williams , T D , Piersma , T & Morrison , R I G 2012 , ' Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic ' , Functional Ecology , vol. 26 , no. 2 , pp. 500-512 . https://doi.org/10.1111/j.1365-2435.2011.01955.x arrival biology basal metabolic rate breeding energetics life-history stages phenotypic flexibility physiological conflicts polar environment reproduction thermoregulation BASAL METABOLIC-RATE KNOTS CALIDRIS-CANUTUS AEROBIC PERFORMANCE VARIATION COST-BENEFIT-ANALYSIS PECTORAL MUSCLE MASS RED KNOTS BODY-COMPOSITION EGG-PRODUCTION ENERGY-EXPENDITURE SEASONAL-VARIATION article 2012 ftunigroningenpu https://doi.org/10.1111/j.1365-2435.2011.01955.x 2024-06-17T15:56:51Z 1. Seasonal carry-over effects may be important structuring components of avian life-history cycles. However, little is known on physiological transitions between stages and on phenotypic compromises that may be made at such time to improve fitness. 2. We studied postmigratory body remodelling in red knots (Calidris canutus islandica) arriving on the Arctic breeding grounds. Our objectives were to determine the effects of body reconstruction and preparation for breeding on maintenance energy costs and to determine whether weather conditions can force compromises between functions required for postmigration recovery of body composition, thermoregulation and breeding. 3. During two consecutive springs at the northernmost land on Earth (Alert, Ellesmere Island, Canada, 82 degrees 30' N), we monitored changes in knots post- arrival body stores. Using ultrasonography, we also tracked changes in gizzard size, an indicator of gut size, and pectoral muscle thickness, not only an endogenous protein source but also a thermogenic organ. We measured basal metabolic rate (BMR) throughout reconstruction and compared it with BMR of nonbreeding red knots wintering in the Dutch Wadden Sea. 4. Arriving knots faced temperatures up to 13 degrees C lower than during midwinter. Birds arrived with large body stores and pectoral muscles, which declined in size while they grew their gizzard and prepared for breeding. BMR at arrival was indistinguishable from winter BMR and increased linearly throughout reconstruction. BMR increased up to 69% faster in females than males, likely due to the development of their reproductive organs. 5. Birds had lower body stores but larger muscles in the colder year, and muscle loss was correlated with the warming of spring temperatures. Therefore, muscles would not only serve as a nutrient source, but their thermogenic function could also provide the flexibility to cope with high thermostatic costs in the spring. However, retaining muscles for shivering may limit protein recirculation and delay the onset ... Article in Journal/Newspaper Arctic Arctic Calidris canutus Ellesmere Island University of Groningen research database Arctic Canada Ellesmere Island Midwinter ENVELOPE(139.931,139.931,-66.690,-66.690) Functional Ecology 26 2 500 512 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
arrival biology basal metabolic rate breeding energetics life-history stages phenotypic flexibility physiological conflicts polar environment reproduction thermoregulation BASAL METABOLIC-RATE KNOTS CALIDRIS-CANUTUS AEROBIC PERFORMANCE VARIATION COST-BENEFIT-ANALYSIS PECTORAL MUSCLE MASS RED KNOTS BODY-COMPOSITION EGG-PRODUCTION ENERGY-EXPENDITURE SEASONAL-VARIATION |
spellingShingle |
arrival biology basal metabolic rate breeding energetics life-history stages phenotypic flexibility physiological conflicts polar environment reproduction thermoregulation BASAL METABOLIC-RATE KNOTS CALIDRIS-CANUTUS AEROBIC PERFORMANCE VARIATION COST-BENEFIT-ANALYSIS PECTORAL MUSCLE MASS RED KNOTS BODY-COMPOSITION EGG-PRODUCTION ENERGY-EXPENDITURE SEASONAL-VARIATION Vezina, Francois Williams, Tony D. Piersma, Theunis Morrison, R. I. Guy Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic |
topic_facet |
arrival biology basal metabolic rate breeding energetics life-history stages phenotypic flexibility physiological conflicts polar environment reproduction thermoregulation BASAL METABOLIC-RATE KNOTS CALIDRIS-CANUTUS AEROBIC PERFORMANCE VARIATION COST-BENEFIT-ANALYSIS PECTORAL MUSCLE MASS RED KNOTS BODY-COMPOSITION EGG-PRODUCTION ENERGY-EXPENDITURE SEASONAL-VARIATION |
description |
1. Seasonal carry-over effects may be important structuring components of avian life-history cycles. However, little is known on physiological transitions between stages and on phenotypic compromises that may be made at such time to improve fitness. 2. We studied postmigratory body remodelling in red knots (Calidris canutus islandica) arriving on the Arctic breeding grounds. Our objectives were to determine the effects of body reconstruction and preparation for breeding on maintenance energy costs and to determine whether weather conditions can force compromises between functions required for postmigration recovery of body composition, thermoregulation and breeding. 3. During two consecutive springs at the northernmost land on Earth (Alert, Ellesmere Island, Canada, 82 degrees 30' N), we monitored changes in knots post- arrival body stores. Using ultrasonography, we also tracked changes in gizzard size, an indicator of gut size, and pectoral muscle thickness, not only an endogenous protein source but also a thermogenic organ. We measured basal metabolic rate (BMR) throughout reconstruction and compared it with BMR of nonbreeding red knots wintering in the Dutch Wadden Sea. 4. Arriving knots faced temperatures up to 13 degrees C lower than during midwinter. Birds arrived with large body stores and pectoral muscles, which declined in size while they grew their gizzard and prepared for breeding. BMR at arrival was indistinguishable from winter BMR and increased linearly throughout reconstruction. BMR increased up to 69% faster in females than males, likely due to the development of their reproductive organs. 5. Birds had lower body stores but larger muscles in the colder year, and muscle loss was correlated with the warming of spring temperatures. Therefore, muscles would not only serve as a nutrient source, but their thermogenic function could also provide the flexibility to cope with high thermostatic costs in the spring. However, retaining muscles for shivering may limit protein recirculation and delay the onset ... |
format |
Article in Journal/Newspaper |
author |
Vezina, Francois Williams, Tony D. Piersma, Theunis Morrison, R. I. Guy |
author_facet |
Vezina, Francois Williams, Tony D. Piersma, Theunis Morrison, R. I. Guy |
author_sort |
Vezina, Francois |
title |
Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic |
title_short |
Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic |
title_full |
Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic |
title_fullStr |
Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic |
title_full_unstemmed |
Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic |
title_sort |
phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the high arctic |
publishDate |
2012 |
url |
https://hdl.handle.net/11370/4e5b1823-c04c-4135-9700-25ed95adaede https://research.rug.nl/en/publications/4e5b1823-c04c-4135-9700-25ed95adaede https://doi.org/10.1111/j.1365-2435.2011.01955.x |
long_lat |
ENVELOPE(139.931,139.931,-66.690,-66.690) |
geographic |
Arctic Canada Ellesmere Island Midwinter |
geographic_facet |
Arctic Canada Ellesmere Island Midwinter |
genre |
Arctic Arctic Calidris canutus Ellesmere Island |
genre_facet |
Arctic Arctic Calidris canutus Ellesmere Island |
op_source |
Vezina , F , Williams , T D , Piersma , T & Morrison , R I G 2012 , ' Phenotypic compromises in a long-distance migrant during the transition from migration to reproduction in the High Arctic ' , Functional Ecology , vol. 26 , no. 2 , pp. 500-512 . https://doi.org/10.1111/j.1365-2435.2011.01955.x |
op_relation |
https://research.rug.nl/en/publications/4e5b1823-c04c-4135-9700-25ed95adaede |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1111/j.1365-2435.2011.01955.x |
container_title |
Functional Ecology |
container_volume |
26 |
container_issue |
2 |
container_start_page |
500 |
op_container_end_page |
512 |
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1809755298824454144 |