Cost reduction in the cold: heat generated by terrestrial locomotion partly substitutes for thermoregulation costs in Knot Calidris canutus
To test whether heat generated during locomotion substitutes for the thermoregulation cost, oxygen consumption of four post‐absorptive temperate‐wintering Knot Calidris canutus was measured at air temperatures of 25d̀C (thermoneutral) and 10d̀C (c. 10d̀ below the lower critical temperature) when the...
Published in: | Ibis |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1998
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1474-919x.1998.tb04396.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1998.tb04396.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1998.tb04396.x |
id |
crwiley:10.1111/j.1474-919x.1998.tb04396.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1474-919x.1998.tb04396.x 2023-12-03T10:20:42+01:00 Cost reduction in the cold: heat generated by terrestrial locomotion partly substitutes for thermoregulation costs in Knot Calidris canutus BRUINZEEL, LEO W. PIERSMA, THEUNIS 1998 http://dx.doi.org/10.1111/j.1474-919x.1998.tb04396.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1998.tb04396.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1998.tb04396.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ibis volume 140, issue 2, page 323-328 ISSN 0019-1019 1474-919X Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1998 crwiley https://doi.org/10.1111/j.1474-919x.1998.tb04396.x 2023-11-09T13:26:42Z To test whether heat generated during locomotion substitutes for the thermoregulation cost, oxygen consumption of four post‐absorptive temperate‐wintering Knot Calidris canutus was measured at air temperatures of 25d̀C (thermoneutral) and 10d̀C (c. 10d̀ below the lower critical temperature) when the birds were at rest at night and during running on a treadmill. After allowing for body mass, the thermoregulation cost at 10d̀C was significantly lower in active birds compared with birds at rest. At rest, the birds spent, on average, 0.50 watt (W; range, 0.47‐0.57 W) on thermoregulation. During exercise, this cost factor averaged 0.33 W (range, 0.25‐0.42 W). The average difference in thermoregulation cost was 35% (ranging from 26% to 49% between individuals) and provides an estimate of the amount of substituted heat. A review of nine studies, all restricted to small birds, showed that substitution is a widespread phenomenon. The consequences of such partial substitution for the annual energetics of Knot wintering in the temperate Wadden Sea v tropical west Africa are examined. Compared with a previous additive model, the model which includes substitution (i.e. the use of heat produced during activity) reduces the differences in maintenance metabolism between the two wintering strategies by 17%, from 1.19 W to 0.99 W. Article in Journal/Newspaper Calidris canutus Wiley Online Library (via Crossref) Ibis 140 2 323 328 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics BRUINZEEL, LEO W. PIERSMA, THEUNIS Cost reduction in the cold: heat generated by terrestrial locomotion partly substitutes for thermoregulation costs in Knot Calidris canutus |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
To test whether heat generated during locomotion substitutes for the thermoregulation cost, oxygen consumption of four post‐absorptive temperate‐wintering Knot Calidris canutus was measured at air temperatures of 25d̀C (thermoneutral) and 10d̀C (c. 10d̀ below the lower critical temperature) when the birds were at rest at night and during running on a treadmill. After allowing for body mass, the thermoregulation cost at 10d̀C was significantly lower in active birds compared with birds at rest. At rest, the birds spent, on average, 0.50 watt (W; range, 0.47‐0.57 W) on thermoregulation. During exercise, this cost factor averaged 0.33 W (range, 0.25‐0.42 W). The average difference in thermoregulation cost was 35% (ranging from 26% to 49% between individuals) and provides an estimate of the amount of substituted heat. A review of nine studies, all restricted to small birds, showed that substitution is a widespread phenomenon. The consequences of such partial substitution for the annual energetics of Knot wintering in the temperate Wadden Sea v tropical west Africa are examined. Compared with a previous additive model, the model which includes substitution (i.e. the use of heat produced during activity) reduces the differences in maintenance metabolism between the two wintering strategies by 17%, from 1.19 W to 0.99 W. |
format |
Article in Journal/Newspaper |
author |
BRUINZEEL, LEO W. PIERSMA, THEUNIS |
author_facet |
BRUINZEEL, LEO W. PIERSMA, THEUNIS |
author_sort |
BRUINZEEL, LEO W. |
title |
Cost reduction in the cold: heat generated by terrestrial locomotion partly substitutes for thermoregulation costs in Knot Calidris canutus |
title_short |
Cost reduction in the cold: heat generated by terrestrial locomotion partly substitutes for thermoregulation costs in Knot Calidris canutus |
title_full |
Cost reduction in the cold: heat generated by terrestrial locomotion partly substitutes for thermoregulation costs in Knot Calidris canutus |
title_fullStr |
Cost reduction in the cold: heat generated by terrestrial locomotion partly substitutes for thermoregulation costs in Knot Calidris canutus |
title_full_unstemmed |
Cost reduction in the cold: heat generated by terrestrial locomotion partly substitutes for thermoregulation costs in Knot Calidris canutus |
title_sort |
cost reduction in the cold: heat generated by terrestrial locomotion partly substitutes for thermoregulation costs in knot calidris canutus |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.1111/j.1474-919x.1998.tb04396.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1474-919X.1998.tb04396.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1474-919X.1998.tb04396.x |
genre |
Calidris canutus |
genre_facet |
Calidris canutus |
op_source |
Ibis volume 140, issue 2, page 323-328 ISSN 0019-1019 1474-919X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1474-919x.1998.tb04396.x |
container_title |
Ibis |
container_volume |
140 |
container_issue |
2 |
container_start_page |
323 |
op_container_end_page |
328 |
_version_ |
1784268165423824896 |