Energetic adjustments in freely breeding-fasting king penguins: does colony density matter?
International audience 1. For seabirds that forage at sea but breed while fasting on land, successful reproduction depends on the effective management of energy stores. Additionally, breeding often means aggregating in dense colonies where social stress may affect energy budgets. 2. Male king pengui...
Published in: | Functional Ecology |
---|---|
Main Authors: | , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2014
|
Subjects: | |
Online Access: | https://hal.science/hal-00939149 https://doi.org/10.1111/1365-2435.12212 |
id |
fthalin2p3:oai:HAL:hal-00939149v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules) |
op_collection_id |
fthalin2p3 |
language |
English |
topic |
body temperature energy expenditure fasting heart rate physical activity seabird social density stress [SDE]Environmental Sciences |
spellingShingle |
body temperature energy expenditure fasting heart rate physical activity seabird social density stress [SDE]Environmental Sciences A. Viblanc, Vincent Saraux, Claire Malosse, Nelly Groscolas, René Energetic adjustments in freely breeding-fasting king penguins: does colony density matter? |
topic_facet |
body temperature energy expenditure fasting heart rate physical activity seabird social density stress [SDE]Environmental Sciences |
description |
International audience 1. For seabirds that forage at sea but breed while fasting on land, successful reproduction depends on the effective management of energy stores. Additionally, breeding often means aggregating in dense colonies where social stress may affect energy budgets. 2. Male king penguins (Aptenodytes patagonicus) fast for remarkably long periods (up to 1 5 months) while courting and incubating ashore. Although their fasting capacities have been well investigated in captivity, we still know very little about the energetics of freely breeding birds. 3. We monitored heart rate (HR, a proxy to energy expenditure), body temperature and physical activity of male king penguins during their courtship and first incubation shift in a colony of some 24 000 freely breeding pairs. Males were breeding either under low but increasing colony density (early breeders) or at high and stable density (late breeders). 4. In early breeders, daily mean and resting HR decreased during courtship but increased again 3 days before egg laying and during incubation. In late breeders, HR remained stable throughout this same breeding period. Interestingly, the daily increase in resting HR we observed in early breeders was strongly associated with a marked increase in colony density over time. This finding remained significant even after controlling for climate effects. 5. In both early and late breeders, courtship and incubation were associated with a progressive decrease in physical activity, whereas core body temperature remained unchanged. 6. We discuss the roles of decreased physical activity and thermoregulatory strategies in sustaining the long courtship-incubation fast of male king penguins. We also draw attention to a potential role of conspecific density in affecting the energetics of breeding-fasting seabirds, that is, a potential energy cost to coloniality. |
author2 |
Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) Centre d’Ecologie Fonctionnelle et Evolutive (CEFE) Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud )-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) IPEV |
format |
Article in Journal/Newspaper |
author |
A. Viblanc, Vincent Saraux, Claire Malosse, Nelly Groscolas, René |
author_facet |
A. Viblanc, Vincent Saraux, Claire Malosse, Nelly Groscolas, René |
author_sort |
A. Viblanc, Vincent |
title |
Energetic adjustments in freely breeding-fasting king penguins: does colony density matter? |
title_short |
Energetic adjustments in freely breeding-fasting king penguins: does colony density matter? |
title_full |
Energetic adjustments in freely breeding-fasting king penguins: does colony density matter? |
title_fullStr |
Energetic adjustments in freely breeding-fasting king penguins: does colony density matter? |
title_full_unstemmed |
Energetic adjustments in freely breeding-fasting king penguins: does colony density matter? |
title_sort |
energetic adjustments in freely breeding-fasting king penguins: does colony density matter? |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-00939149 https://doi.org/10.1111/1365-2435.12212 |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
ISSN: 0269-8463 EISSN: 1365-2435 Functional Ecology https://hal.science/hal-00939149 Functional Ecology, 2014, 28 (3), pp.621-631. ⟨10.1111/1365-2435.12212⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2435.12212 hal-00939149 https://hal.science/hal-00939149 doi:10.1111/1365-2435.12212 |
op_doi |
https://doi.org/10.1111/1365-2435.12212 |
container_title |
Functional Ecology |
container_volume |
28 |
container_issue |
3 |
container_start_page |
621 |
op_container_end_page |
631 |
_version_ |
1799483179523899392 |
spelling |
fthalin2p3:oai:HAL:hal-00939149v1 2024-05-19T07:43:27+00:00 Energetic adjustments in freely breeding-fasting king penguins: does colony density matter? A. Viblanc, Vincent Saraux, Claire Malosse, Nelly Groscolas, René Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) Centre d’Ecologie Fonctionnelle et Evolutive (CEFE) Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD France-Sud )-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) IPEV 2014 https://hal.science/hal-00939149 https://doi.org/10.1111/1365-2435.12212 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2435.12212 hal-00939149 https://hal.science/hal-00939149 doi:10.1111/1365-2435.12212 ISSN: 0269-8463 EISSN: 1365-2435 Functional Ecology https://hal.science/hal-00939149 Functional Ecology, 2014, 28 (3), pp.621-631. ⟨10.1111/1365-2435.12212⟩ body temperature energy expenditure fasting heart rate physical activity seabird social density stress [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2014 fthalin2p3 https://doi.org/10.1111/1365-2435.12212 2024-04-23T23:49:23Z International audience 1. For seabirds that forage at sea but breed while fasting on land, successful reproduction depends on the effective management of energy stores. Additionally, breeding often means aggregating in dense colonies where social stress may affect energy budgets. 2. Male king penguins (Aptenodytes patagonicus) fast for remarkably long periods (up to 1 5 months) while courting and incubating ashore. Although their fasting capacities have been well investigated in captivity, we still know very little about the energetics of freely breeding birds. 3. We monitored heart rate (HR, a proxy to energy expenditure), body temperature and physical activity of male king penguins during their courtship and first incubation shift in a colony of some 24 000 freely breeding pairs. Males were breeding either under low but increasing colony density (early breeders) or at high and stable density (late breeders). 4. In early breeders, daily mean and resting HR decreased during courtship but increased again 3 days before egg laying and during incubation. In late breeders, HR remained stable throughout this same breeding period. Interestingly, the daily increase in resting HR we observed in early breeders was strongly associated with a marked increase in colony density over time. This finding remained significant even after controlling for climate effects. 5. In both early and late breeders, courtship and incubation were associated with a progressive decrease in physical activity, whereas core body temperature remained unchanged. 6. We discuss the roles of decreased physical activity and thermoregulatory strategies in sustaining the long courtship-incubation fast of male king penguins. We also draw attention to a potential role of conspecific density in affecting the energetics of breeding-fasting seabirds, that is, a potential energy cost to coloniality. Article in Journal/Newspaper King Penguins HAL-IN2P3 (Institut national de physique nucléaire et de physique des particules) Functional Ecology 28 3 621 631 |