Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling
We used ultrasonic imaging to monitor short-term changes in the pectoral muscle size of captive red knots Calidris canutus. Pectoral muscle thickness changed rapidly and consistently in parallel with body mass changes caused by flight, fasting;and fuelling. Four knots hew repeatedly for 10h periods...
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Online Access: | https://hdl.handle.net/11370/6f311c00-0b14-401b-a9cd-d1900314fa67 https://research.rug.nl/en/publications/6f311c00-0b14-401b-a9cd-d1900314fa67 https://pure.rug.nl/ws/files/6659883/2000JExpBiolLindstrom.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/6f311c00-0b14-401b-a9cd-d1900314fa67 2024-06-23T07:51:55+00:00 Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling Lindström, Åke Kvist, A Piersma, T Dekinga, A Dietz, M W 2000-03 application/pdf https://hdl.handle.net/11370/6f311c00-0b14-401b-a9cd-d1900314fa67 https://research.rug.nl/en/publications/6f311c00-0b14-401b-a9cd-d1900314fa67 https://pure.rug.nl/ws/files/6659883/2000JExpBiolLindstrom.pdf eng eng https://research.rug.nl/en/publications/6f311c00-0b14-401b-a9cd-d1900314fa67 info:eu-repo/semantics/openAccess Lindström , Å , Kvist , A , Piersma , T , Dekinga , A & Dietz , M W 2000 , ' Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling ' , Journal of Experimental Biology , vol. 203 , no. 5 , pp. 913-919 . flight pectoral muscle migration phenotypic flexibility exercise power training ultrasonic imaging wind tunnel red knot Calidris canutus BIRDS HYPERTROPHY FAT ADAPTATIONS DIET article 2000 ftunigroningenpu 2024-05-27T15:53:35Z We used ultrasonic imaging to monitor short-term changes in the pectoral muscle size of captive red knots Calidris canutus. Pectoral muscle thickness changed rapidly and consistently in parallel with body mass changes caused by flight, fasting;and fuelling. Four knots hew repeatedly for 10h periods in a wind tunnel. Over this period, pectoral muscle thickness decreased in parallel with the decrease in body mass. The change in pectoral muscle thickness during flight wats indistinguishable from that during periods of natural and experimental fasting and fuelling, The body-mass-related variation in pectoral muscle thickness between and within individuals was not related to the amount of Right, indicating that changes in avian muscle do not require power-training as in mammals. Our study suggests that it is possible for birds to consume and replace their flight muscles on a time scale short enough to allow these muscles to be used as part of the energy supply for migratory flight. The adaptive significance of the changes in pectoral muscle mass cannot be explained by reproductive needs since our knots were in the early winter phase of their annual cycle. Instead, pectoral muscle mass changes may reflect (i) the breakdown of protein during heavy exercise and its subsequent restoration, (ii) the regulation of flight capacity to maintain optimal flight performance when body mass varies, or (iii) the need for a particular protein:fat ratio in winter survival stores. Article in Journal/Newspaper Calidris canutus Red Knot University of Groningen research database |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
flight pectoral muscle migration phenotypic flexibility exercise power training ultrasonic imaging wind tunnel red knot Calidris canutus BIRDS HYPERTROPHY FAT ADAPTATIONS DIET |
spellingShingle |
flight pectoral muscle migration phenotypic flexibility exercise power training ultrasonic imaging wind tunnel red knot Calidris canutus BIRDS HYPERTROPHY FAT ADAPTATIONS DIET Lindström, Åke Kvist, A Piersma, T Dekinga, A Dietz, M W Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling |
topic_facet |
flight pectoral muscle migration phenotypic flexibility exercise power training ultrasonic imaging wind tunnel red knot Calidris canutus BIRDS HYPERTROPHY FAT ADAPTATIONS DIET |
description |
We used ultrasonic imaging to monitor short-term changes in the pectoral muscle size of captive red knots Calidris canutus. Pectoral muscle thickness changed rapidly and consistently in parallel with body mass changes caused by flight, fasting;and fuelling. Four knots hew repeatedly for 10h periods in a wind tunnel. Over this period, pectoral muscle thickness decreased in parallel with the decrease in body mass. The change in pectoral muscle thickness during flight wats indistinguishable from that during periods of natural and experimental fasting and fuelling, The body-mass-related variation in pectoral muscle thickness between and within individuals was not related to the amount of Right, indicating that changes in avian muscle do not require power-training as in mammals. Our study suggests that it is possible for birds to consume and replace their flight muscles on a time scale short enough to allow these muscles to be used as part of the energy supply for migratory flight. The adaptive significance of the changes in pectoral muscle mass cannot be explained by reproductive needs since our knots were in the early winter phase of their annual cycle. Instead, pectoral muscle mass changes may reflect (i) the breakdown of protein during heavy exercise and its subsequent restoration, (ii) the regulation of flight capacity to maintain optimal flight performance when body mass varies, or (iii) the need for a particular protein:fat ratio in winter survival stores. |
format |
Article in Journal/Newspaper |
author |
Lindström, Åke Kvist, A Piersma, T Dekinga, A Dietz, M W |
author_facet |
Lindström, Åke Kvist, A Piersma, T Dekinga, A Dietz, M W |
author_sort |
Lindström, Åke |
title |
Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling |
title_short |
Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling |
title_full |
Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling |
title_fullStr |
Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling |
title_full_unstemmed |
Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling |
title_sort |
avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling |
publishDate |
2000 |
url |
https://hdl.handle.net/11370/6f311c00-0b14-401b-a9cd-d1900314fa67 https://research.rug.nl/en/publications/6f311c00-0b14-401b-a9cd-d1900314fa67 https://pure.rug.nl/ws/files/6659883/2000JExpBiolLindstrom.pdf |
genre |
Calidris canutus Red Knot |
genre_facet |
Calidris canutus Red Knot |
op_source |
Lindström , Å , Kvist , A , Piersma , T , Dekinga , A & Dietz , M W 2000 , ' Avian pectoral muscle size rapidly tracks body mass changes during flight, fasting and fuelling ' , Journal of Experimental Biology , vol. 203 , no. 5 , pp. 913-919 . |
op_relation |
https://research.rug.nl/en/publications/6f311c00-0b14-401b-a9cd-d1900314fa67 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1802643072121569280 |