Heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance
International audience We studied the changes in heart rate (HR) associated with metabolic rate of incubating and resting adult wandering albatrosses (Diomedea exulans) on the Crozet Islands. Metabolic rates of resting albatrosses fitted with external HR recorders were measured in a metabolic chambe...
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fttriple:oai:gotriple.eu:10670/1.jwrp4e 2023-05-15T15:59:34+02:00 Heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance Weimerskirch, Henri Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2002-01-01 https://hal.archives-ouvertes.fr/hal-00192227 en eng HAL CCSD hal-00192227 10670/1.jwrp4e https://hal.archives-ouvertes.fr/hal-00192227 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société the journal of experience biology the journal of experience biology, 2002, 205, pp.475-483 oxygen consumption basal metabolic rate wandering albatross Diomedea exulans handling effect human disturbance heart rate envir socio Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2002 fttriple 2023-01-22T17:27:09Z International audience We studied the changes in heart rate (HR) associated with metabolic rate of incubating and resting adult wandering albatrosses (Diomedea exulans) on the Crozet Islands. Metabolic rates of resting albatrosses fitted with external HR recorders were measured in a metabolic chamber to calibrate the relationship between HR and oxygen consumption (V . O·) (V . O·=0.074´HR+0.019, r2=0.567, P<0.001, where V . O· is in ml kg–1 min–1 and HR is in beats min–1). Incubating albatrosses were then fitted with HR recorders to estimate energy expenditure of albatrosses within natural field conditions. We also examined the natural variation in HR and the effects of human disturbance on nesting birds by monitoring the changes in HR. Basal HR was positively related to the mass of the individual. The HR of incubating birds corresponded to a metabolic rate that was 1.5-fold (males) and 1.8-fold (females) lower than basal metabolic rate (BMR) measured in this and a previous study. The difference was probably attributable to birds being stressed while they were held in the metabolic chamber or wearing a mask. Thus, previous measurements of metabolic rate under basal conditions or for incubating wandering albatrosses are likely to be overestimates. Combining the relationship between HR and metabolic rate for both sexes, we estimate that wandering albatrosses expend 147 kJ kg–1 day–1 to incubate their eggs. In addition, the cost of incubation was assumed to vary because (i) HR was higher during the day than at night, and (ii) there was an effect of wind chill (<0 °C) on basal HR. The presence of humans in the vicinity of the nest or after a band control was shown to increase HR for extended periods (2–3 h), suggesting that energy expenditure was increased as a result of the disturbance. Lastly, males and females reacted differently to handling in terms of HR response: males reacted more strongly than females before handling, whereas females took longer to recover after being handled. Article in Journal/Newspaper Crozet Islands Diomedea exulans Wandering Albatross Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
oxygen consumption basal metabolic rate wandering albatross Diomedea exulans handling effect human disturbance heart rate envir socio |
spellingShingle |
oxygen consumption basal metabolic rate wandering albatross Diomedea exulans handling effect human disturbance heart rate envir socio Weimerskirch, Henri Heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance |
topic_facet |
oxygen consumption basal metabolic rate wandering albatross Diomedea exulans handling effect human disturbance heart rate envir socio |
description |
International audience We studied the changes in heart rate (HR) associated with metabolic rate of incubating and resting adult wandering albatrosses (Diomedea exulans) on the Crozet Islands. Metabolic rates of resting albatrosses fitted with external HR recorders were measured in a metabolic chamber to calibrate the relationship between HR and oxygen consumption (V . O·) (V . O·=0.074´HR+0.019, r2=0.567, P<0.001, where V . O· is in ml kg–1 min–1 and HR is in beats min–1). Incubating albatrosses were then fitted with HR recorders to estimate energy expenditure of albatrosses within natural field conditions. We also examined the natural variation in HR and the effects of human disturbance on nesting birds by monitoring the changes in HR. Basal HR was positively related to the mass of the individual. The HR of incubating birds corresponded to a metabolic rate that was 1.5-fold (males) and 1.8-fold (females) lower than basal metabolic rate (BMR) measured in this and a previous study. The difference was probably attributable to birds being stressed while they were held in the metabolic chamber or wearing a mask. Thus, previous measurements of metabolic rate under basal conditions or for incubating wandering albatrosses are likely to be overestimates. Combining the relationship between HR and metabolic rate for both sexes, we estimate that wandering albatrosses expend 147 kJ kg–1 day–1 to incubate their eggs. In addition, the cost of incubation was assumed to vary because (i) HR was higher during the day than at night, and (ii) there was an effect of wind chill (<0 °C) on basal HR. The presence of humans in the vicinity of the nest or after a band control was shown to increase HR for extended periods (2–3 h), suggesting that energy expenditure was increased as a result of the disturbance. Lastly, males and females reacted differently to handling in terms of HR response: males reacted more strongly than females before handling, whereas females took longer to recover after being handled. |
author2 |
Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Weimerskirch, Henri |
author_facet |
Weimerskirch, Henri |
author_sort |
Weimerskirch, Henri |
title |
Heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance |
title_short |
Heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance |
title_full |
Heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance |
title_fullStr |
Heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance |
title_full_unstemmed |
Heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance |
title_sort |
heart rate and energy expenditure of incubating wandering albatrosses: basal levels, natural variation, and the effects of human disturbance |
publisher |
HAL CCSD |
publishDate |
2002 |
url |
https://hal.archives-ouvertes.fr/hal-00192227 |
genre |
Crozet Islands Diomedea exulans Wandering Albatross |
genre_facet |
Crozet Islands Diomedea exulans Wandering Albatross |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société the journal of experience biology the journal of experience biology, 2002, 205, pp.475-483 |
op_relation |
hal-00192227 10670/1.jwrp4e https://hal.archives-ouvertes.fr/hal-00192227 |
op_rights |
undefined |
_version_ |
1766395511329259520 |