Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps
The South Georgian shag (Phalacrocorax georgianus) shows a remarkable diving ability comparable to that of penguins, yet nothing is known of the physiology of these birds, In this study, heart rates and abdominal temperatures were recorded continuously in four free-ranging South Georgian shags using...
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1997
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/heart-rates-and-abdominal-temperatures-of-freeranging-antarctic-blueeyed-shags-phalacrocorax-atriceps(4c82391e-410c-4883-b610-3bb3044538d5).html http://www.scopus.com/inward/record.url?scp=0030940599&partnerID=8YFLogxK |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/4c82391e-410c-4883-b610-3bb3044538d5 2024-09-15T17:41:01+00:00 Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps Bevan, RM Boyd, Ian Lamont Butler, PJ Reid, K Woakes, AJ Croxall, JP 1997-02 https://research-portal.st-andrews.ac.uk/en/researchoutput/heart-rates-and-abdominal-temperatures-of-freeranging-antarctic-blueeyed-shags-phalacrocorax-atriceps(4c82391e-410c-4883-b610-3bb3044538d5).html http://www.scopus.com/inward/record.url?scp=0030940599&partnerID=8YFLogxK eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/heart-rates-and-abdominal-temperatures-of-freeranging-antarctic-blueeyed-shags-phalacrocorax-atriceps(4c82391e-410c-4883-b610-3bb3044538d5).html info:eu-repo/semantics/restrictedAccess Bevan , RM , Boyd , I L , Butler , PJ , Reid , K , Woakes , AJ & Croxall , JP 1997 , ' Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps ' , Journal of Experimental Biology , vol. 200 , pp. 661-675 . diving flying heart rate body temperature thermoregulation metabolism Phalacrocoridae shag Phalacrocorax georgianus DUCK AYTHYA-FULIGULA BLUE-EYED SHAG OXYGEN-CONSUMPTION BODY-TEMPERATURE RESPIRATORY FREQUENCY DIVING BEHAVIOR WEDDELL SEALS TUFTED DUCKS CORMORANTS RESPONSES article 1997 ftunstandrewcris 2024-07-03T23:33:43Z The South Georgian shag (Phalacrocorax georgianus) shows a remarkable diving ability comparable to that of penguins, yet nothing is known of the physiology of these birds, In this study, heart rates and abdominal temperatures were recorded continuously in four free-ranging South Georgian shags using an implanted data-logger, A time-depth recorder was also attached to the back of the implanted birds to record their diving behaviour, The diving behaviour of the birds was essentially similar to that reported in other studies, with maximum dive durations for individual birds ranging between 140 and 287s, and maximum depths between 35 and 101 m. The birds, while at the nest, had a heart rate of 104.0+/-13.1 beats min(-1) (mean +/- S.E.M.) and an abdominal temperature of 39.1+/-0.2 degrees C. During flights of 221+/-29s, heart rate and abdominal temperature rose to 309.5+/-18.0 beats min(-1) and 40.1+/-0.3 degrees C, respectively, The mean heart rate during diving, at 103.7+/-13.7 beats min(-1), was not significantly different from the resting values, but the minimum heart rate during a dive was significantly lower at 64.8+/-5.8 beats min(-1). The minimum heart rate during a dive was negatively correlated with both dive duration and dive depth, Abdominal temperature fell progressively during a diving bout, with a mean temperature at the end of a bout of 35.1+/-1.7 degrees C, The minimum heart rate during diving is at a sub-resting level, which suggests that the South Georgian shag responds to submersion with the 'classic' dive response of bradycardia and the associated peripheral vasoconstriction and utilisation of anaerobic metabolism, However, the reduction in abdominal temperature may reflect a reduction in the overall metabolic rate of the animal such that the bird can remain aerobic while submerged. Article in Journal/Newspaper Antarc* Antarctic Blue Eyed Shag Phalacrocorax atriceps Weddell Seals University of St Andrews: Research Portal |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
diving flying heart rate body temperature thermoregulation metabolism Phalacrocoridae shag Phalacrocorax georgianus DUCK AYTHYA-FULIGULA BLUE-EYED SHAG OXYGEN-CONSUMPTION BODY-TEMPERATURE RESPIRATORY FREQUENCY DIVING BEHAVIOR WEDDELL SEALS TUFTED DUCKS CORMORANTS RESPONSES |
spellingShingle |
diving flying heart rate body temperature thermoregulation metabolism Phalacrocoridae shag Phalacrocorax georgianus DUCK AYTHYA-FULIGULA BLUE-EYED SHAG OXYGEN-CONSUMPTION BODY-TEMPERATURE RESPIRATORY FREQUENCY DIVING BEHAVIOR WEDDELL SEALS TUFTED DUCKS CORMORANTS RESPONSES Bevan, RM Boyd, Ian Lamont Butler, PJ Reid, K Woakes, AJ Croxall, JP Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps |
topic_facet |
diving flying heart rate body temperature thermoregulation metabolism Phalacrocoridae shag Phalacrocorax georgianus DUCK AYTHYA-FULIGULA BLUE-EYED SHAG OXYGEN-CONSUMPTION BODY-TEMPERATURE RESPIRATORY FREQUENCY DIVING BEHAVIOR WEDDELL SEALS TUFTED DUCKS CORMORANTS RESPONSES |
description |
The South Georgian shag (Phalacrocorax georgianus) shows a remarkable diving ability comparable to that of penguins, yet nothing is known of the physiology of these birds, In this study, heart rates and abdominal temperatures were recorded continuously in four free-ranging South Georgian shags using an implanted data-logger, A time-depth recorder was also attached to the back of the implanted birds to record their diving behaviour, The diving behaviour of the birds was essentially similar to that reported in other studies, with maximum dive durations for individual birds ranging between 140 and 287s, and maximum depths between 35 and 101 m. The birds, while at the nest, had a heart rate of 104.0+/-13.1 beats min(-1) (mean +/- S.E.M.) and an abdominal temperature of 39.1+/-0.2 degrees C. During flights of 221+/-29s, heart rate and abdominal temperature rose to 309.5+/-18.0 beats min(-1) and 40.1+/-0.3 degrees C, respectively, The mean heart rate during diving, at 103.7+/-13.7 beats min(-1), was not significantly different from the resting values, but the minimum heart rate during a dive was significantly lower at 64.8+/-5.8 beats min(-1). The minimum heart rate during a dive was negatively correlated with both dive duration and dive depth, Abdominal temperature fell progressively during a diving bout, with a mean temperature at the end of a bout of 35.1+/-1.7 degrees C, The minimum heart rate during diving is at a sub-resting level, which suggests that the South Georgian shag responds to submersion with the 'classic' dive response of bradycardia and the associated peripheral vasoconstriction and utilisation of anaerobic metabolism, However, the reduction in abdominal temperature may reflect a reduction in the overall metabolic rate of the animal such that the bird can remain aerobic while submerged. |
format |
Article in Journal/Newspaper |
author |
Bevan, RM Boyd, Ian Lamont Butler, PJ Reid, K Woakes, AJ Croxall, JP |
author_facet |
Bevan, RM Boyd, Ian Lamont Butler, PJ Reid, K Woakes, AJ Croxall, JP |
author_sort |
Bevan, RM |
title |
Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps |
title_short |
Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps |
title_full |
Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps |
title_fullStr |
Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps |
title_full_unstemmed |
Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps |
title_sort |
heart rates and abdominal temperatures of free-ranging antarctic blue-eyed shags, phalacrocorax atriceps |
publishDate |
1997 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/heart-rates-and-abdominal-temperatures-of-freeranging-antarctic-blueeyed-shags-phalacrocorax-atriceps(4c82391e-410c-4883-b610-3bb3044538d5).html http://www.scopus.com/inward/record.url?scp=0030940599&partnerID=8YFLogxK |
genre |
Antarc* Antarctic Blue Eyed Shag Phalacrocorax atriceps Weddell Seals |
genre_facet |
Antarc* Antarctic Blue Eyed Shag Phalacrocorax atriceps Weddell Seals |
op_source |
Bevan , RM , Boyd , I L , Butler , PJ , Reid , K , Woakes , AJ & Croxall , JP 1997 , ' Heart rates and abdominal temperatures of free-ranging Antarctic blue-eyed shags, Phalacrocorax atriceps ' , Journal of Experimental Biology , vol. 200 , pp. 661-675 . |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/heart-rates-and-abdominal-temperatures-of-freeranging-antarctic-blueeyed-shags-phalacrocorax-atriceps(4c82391e-410c-4883-b610-3bb3044538d5).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1810487072657506304 |