Energetics of diving in macaroni penguins
Heart rate (fH), abdominal temperature (T-ab) and diving depth were measured in thirteen free-ranging breeding female macaroni penguins. Measurement of these variables allowed estimation of the mass-specific rate of oxygen consumption ((V) over dot O-2) while diving and investigation of the physiolo...
Published in: | Journal of Experimental Biology |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2003
|
Subjects: | |
Online Access: | https://research-portal.st-andrews.ac.uk/en/publications/3fa74e12-7f5b-4556-afac-0c52b4061129 https://doi.org/10.1242/jeb.00059 http://www.scopus.com/inward/record.url?scp=0037232635&partnerID=8YFLogxK |
id |
ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/3fa74e12-7f5b-4556-afac-0c52b4061129 |
---|---|
record_format |
openpolar |
spelling |
ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/3fa74e12-7f5b-4556-afac-0c52b4061129 2024-10-13T14:06:57+00:00 Energetics of diving in macaroni penguins Green, J.A. Butler, P.J. Woakes, A.J. Boyd, Ian 2003-01 https://research-portal.st-andrews.ac.uk/en/publications/3fa74e12-7f5b-4556-afac-0c52b4061129 https://doi.org/10.1242/jeb.00059 http://www.scopus.com/inward/record.url?scp=0037232635&partnerID=8YFLogxK eng eng https://research-portal.st-andrews.ac.uk/en/publications/3fa74e12-7f5b-4556-afac-0c52b4061129 info:eu-repo/semantics/restrictedAccess Green , J A , Butler , P J , Woakes , A J & Boyd , I 2003 , ' Energetics of diving in macaroni penguins ' , Journal of Experimental Biology , vol. 206 , no. 1 , pp. 43-57 . https://doi.org/10.1242/jeb.00059 energetics diving macaroni penguin heart rate abdominal temperature rate of oxygen consumption calculated aerobic dive limit DUCK AYTHYA-FULIGULA HEART-RATE SOUTH GEORGIA KING PENGUINS EUDYPTES-CHRYSOLOPHUS OXYGEN-CONSUMPTION EMPEROR PENGUINS APTENODYTES-PATAGONICUS BODY-TEMPERATURE ADELIE PENGUINS article 2003 ftunstandrewcris https://doi.org/10.1242/jeb.00059 2024-09-18T23:42:20Z Heart rate (fH), abdominal temperature (T-ab) and diving depth were measured in thirteen free-ranging breeding female macaroni penguins. Measurement of these variables allowed estimation of the mass-specific rate of oxygen consumption ((V) over dot O-2) while diving and investigation of the physiological adjustments that might facilitate the diving behaviour observed in this species. In common with other diving birds, macaroni penguins showed significant changes in fH associated with diving, and these variables accounted for 36% of the variation in dive duration. When (V) over dot O-2 was calculated for dives of different durations, 95.3% of dives measured were within the calculated aerobic dive limit (cADL) for this species. Mean fH for all complete dive cycles was 147+/-6 beats min(-1). When this fH is used to estimate (V) over dot O-2 of 26.2+/-1.4 ml min(-1) kg(-1) then only 92.8% of dives measured were within the cADL. Significant changes in abdominal temperature were not detected within individual dives, though the time constant of the measuring device used may not have been low enough to record these changes if they were present. Abdominal temperature did decline consistently during bouts of repeated diving of all durations and the mean decrease in T-ab during a diving bout was 2.32+/-0.20degreesC. There was a linear relationship between bout duration and the magnitude of this temperature drop. There was no commensurate increase in dive duration during dive bouts as T-ab declined, suggesting that macaroni penguins are diving within their physiological limits and that factors other than T-ab are important in determining the duration of dives and dive bouts. Lowered T-ab will in turn facilitate lower metabolic rates during diving bouts, but it was not possible in the present study to determine the importance of this energy saving and whether it is occurs actively or passively. Article in Journal/Newspaper Emperor penguins Eudyptes chrysolophus King Penguins Macaroni penguin University of St Andrews: Research Portal Journal of Experimental Biology 206 1 43 57 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
energetics diving macaroni penguin heart rate abdominal temperature rate of oxygen consumption calculated aerobic dive limit DUCK AYTHYA-FULIGULA HEART-RATE SOUTH GEORGIA KING PENGUINS EUDYPTES-CHRYSOLOPHUS OXYGEN-CONSUMPTION EMPEROR PENGUINS APTENODYTES-PATAGONICUS BODY-TEMPERATURE ADELIE PENGUINS |
spellingShingle |
energetics diving macaroni penguin heart rate abdominal temperature rate of oxygen consumption calculated aerobic dive limit DUCK AYTHYA-FULIGULA HEART-RATE SOUTH GEORGIA KING PENGUINS EUDYPTES-CHRYSOLOPHUS OXYGEN-CONSUMPTION EMPEROR PENGUINS APTENODYTES-PATAGONICUS BODY-TEMPERATURE ADELIE PENGUINS Green, J.A. Butler, P.J. Woakes, A.J. Boyd, Ian Energetics of diving in macaroni penguins |
topic_facet |
energetics diving macaroni penguin heart rate abdominal temperature rate of oxygen consumption calculated aerobic dive limit DUCK AYTHYA-FULIGULA HEART-RATE SOUTH GEORGIA KING PENGUINS EUDYPTES-CHRYSOLOPHUS OXYGEN-CONSUMPTION EMPEROR PENGUINS APTENODYTES-PATAGONICUS BODY-TEMPERATURE ADELIE PENGUINS |
description |
Heart rate (fH), abdominal temperature (T-ab) and diving depth were measured in thirteen free-ranging breeding female macaroni penguins. Measurement of these variables allowed estimation of the mass-specific rate of oxygen consumption ((V) over dot O-2) while diving and investigation of the physiological adjustments that might facilitate the diving behaviour observed in this species. In common with other diving birds, macaroni penguins showed significant changes in fH associated with diving, and these variables accounted for 36% of the variation in dive duration. When (V) over dot O-2 was calculated for dives of different durations, 95.3% of dives measured were within the calculated aerobic dive limit (cADL) for this species. Mean fH for all complete dive cycles was 147+/-6 beats min(-1). When this fH is used to estimate (V) over dot O-2 of 26.2+/-1.4 ml min(-1) kg(-1) then only 92.8% of dives measured were within the cADL. Significant changes in abdominal temperature were not detected within individual dives, though the time constant of the measuring device used may not have been low enough to record these changes if they were present. Abdominal temperature did decline consistently during bouts of repeated diving of all durations and the mean decrease in T-ab during a diving bout was 2.32+/-0.20degreesC. There was a linear relationship between bout duration and the magnitude of this temperature drop. There was no commensurate increase in dive duration during dive bouts as T-ab declined, suggesting that macaroni penguins are diving within their physiological limits and that factors other than T-ab are important in determining the duration of dives and dive bouts. Lowered T-ab will in turn facilitate lower metabolic rates during diving bouts, but it was not possible in the present study to determine the importance of this energy saving and whether it is occurs actively or passively. |
format |
Article in Journal/Newspaper |
author |
Green, J.A. Butler, P.J. Woakes, A.J. Boyd, Ian |
author_facet |
Green, J.A. Butler, P.J. Woakes, A.J. Boyd, Ian |
author_sort |
Green, J.A. |
title |
Energetics of diving in macaroni penguins |
title_short |
Energetics of diving in macaroni penguins |
title_full |
Energetics of diving in macaroni penguins |
title_fullStr |
Energetics of diving in macaroni penguins |
title_full_unstemmed |
Energetics of diving in macaroni penguins |
title_sort |
energetics of diving in macaroni penguins |
publishDate |
2003 |
url |
https://research-portal.st-andrews.ac.uk/en/publications/3fa74e12-7f5b-4556-afac-0c52b4061129 https://doi.org/10.1242/jeb.00059 http://www.scopus.com/inward/record.url?scp=0037232635&partnerID=8YFLogxK |
genre |
Emperor penguins Eudyptes chrysolophus King Penguins Macaroni penguin |
genre_facet |
Emperor penguins Eudyptes chrysolophus King Penguins Macaroni penguin |
op_source |
Green , J A , Butler , P J , Woakes , A J & Boyd , I 2003 , ' Energetics of diving in macaroni penguins ' , Journal of Experimental Biology , vol. 206 , no. 1 , pp. 43-57 . https://doi.org/10.1242/jeb.00059 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/publications/3fa74e12-7f5b-4556-afac-0c52b4061129 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1242/jeb.00059 |
container_title |
Journal of Experimental Biology |
container_volume |
206 |
container_issue |
1 |
container_start_page |
43 |
op_container_end_page |
57 |
_version_ |
1812813204517027840 |