Spontaneous egg or chick abandonment in energy-depleted king penguins: A role for corticosterone and prolactin?
International audience Various exogenous or endogenous factors may induce an emergency response in birds, redirecting current activity towards survival. In fasting, breeding penguins, the achievement of a critical energy depletion was suggested to induce egg abandonment and departure to sea for re-f...
Published in: | Hormones and Behavior |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.archives-ouvertes.fr/hal-00202784 https://doi.org/10.1016/j.yhbeh.2007.08.010 |
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ftccsdartic:oai:HAL:hal-00202784v1 2023-05-15T17:03:53+02:00 Spontaneous egg or chick abandonment in energy-depleted king penguins: A role for corticosterone and prolactin? Groscolas, René Lacroix, André Robin, Jean-Patrice Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS) Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) 2008-01 https://hal.archives-ouvertes.fr/hal-00202784 https://doi.org/10.1016/j.yhbeh.2007.08.010 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yhbeh.2007.08.010 info:eu-repo/semantics/altIdentifier/pmid/17920597 hal-00202784 https://hal.archives-ouvertes.fr/hal-00202784 doi:10.1016/j.yhbeh.2007.08.010 PUBMED: 17920597 ISSN: 0018-506X EISSN: 1095-6867 Hormones and Behavior https://hal.archives-ouvertes.fr/hal-00202784 Hormones and Behavior, Elsevier, 2008, 53 (1), pp.51-60. ⟨10.1016/j.yhbeh.2007.08.010⟩ brooding fasting egg/chick abandonment energy depletion corticosterone prolactin Incubating [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2008 ftccsdartic https://doi.org/10.1016/j.yhbeh.2007.08.010 2021-12-19T04:16:09Z International audience Various exogenous or endogenous factors may induce an emergency response in birds, redirecting current activity towards survival. In fasting, breeding penguins, the achievement of a critical energy depletion was suggested to induce egg abandonment and departure to sea for re-feeding. How such a behavioral shift is hormonally controlled remains unknown. The possible involvement of corticosterone and prolactin was examined by characterizing the nutritional and hormonal states of king penguins at egg abandonment. Further, we tested if these states differ according to whether an egg or a chick is abandoned, and according to the timing of breeding. In every case of abandonment, birds were in phase III fasting characterized by accelerated protein catabolism. However, body condition at egg abandonment was lower in early than in late breeders, suggesting that king penguins are willing to tolerate a larger energy depletion when their potential breeding success is high. At egg and chick abandonment, plasma corticosterone levels were, respectively, increased by 2- and 4-fold, whereas plasma prolactin levels were, respectively, depressed by 3- and 1.4-fold. The increase in plasma corticosterone and the decrease in plasma prolactin could be involved in the control of abandonment by, respectively, stimulating the drive to re-feed and diminishing the drive to incubate or brood. The smaller decrease in prolactin levels and the greater increase in corticosterone levels observed at chick vs egg abandonment suggest that, in addition to nutritionally-related stimuli, tactile or audible stimuli from the egg or chick could intervene in the endocrine control of abandonment. Article in Journal/Newspaper King Penguins Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Hormones and Behavior 53 1 51 60 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
brooding fasting egg/chick abandonment energy depletion corticosterone prolactin Incubating [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
brooding fasting egg/chick abandonment energy depletion corticosterone prolactin Incubating [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDE.BE]Environmental Sciences/Biodiversity and Ecology Groscolas, René Lacroix, André Robin, Jean-Patrice Spontaneous egg or chick abandonment in energy-depleted king penguins: A role for corticosterone and prolactin? |
topic_facet |
brooding fasting egg/chick abandonment energy depletion corticosterone prolactin Incubating [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience Various exogenous or endogenous factors may induce an emergency response in birds, redirecting current activity towards survival. In fasting, breeding penguins, the achievement of a critical energy depletion was suggested to induce egg abandonment and departure to sea for re-feeding. How such a behavioral shift is hormonally controlled remains unknown. The possible involvement of corticosterone and prolactin was examined by characterizing the nutritional and hormonal states of king penguins at egg abandonment. Further, we tested if these states differ according to whether an egg or a chick is abandoned, and according to the timing of breeding. In every case of abandonment, birds were in phase III fasting characterized by accelerated protein catabolism. However, body condition at egg abandonment was lower in early than in late breeders, suggesting that king penguins are willing to tolerate a larger energy depletion when their potential breeding success is high. At egg and chick abandonment, plasma corticosterone levels were, respectively, increased by 2- and 4-fold, whereas plasma prolactin levels were, respectively, depressed by 3- and 1.4-fold. The increase in plasma corticosterone and the decrease in plasma prolactin could be involved in the control of abandonment by, respectively, stimulating the drive to re-feed and diminishing the drive to incubate or brood. The smaller decrease in prolactin levels and the greater increase in corticosterone levels observed at chick vs egg abandonment suggest that, in addition to nutritionally-related stimuli, tactile or audible stimuli from the egg or chick could intervene in the endocrine control of abandonment. |
author2 |
Département Ecologie, Physiologie et Ethologie (DEPE-IPHC) Institut Pluridisciplinaire Hubert Curien (IPHC) Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS) Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Groscolas, René Lacroix, André Robin, Jean-Patrice |
author_facet |
Groscolas, René Lacroix, André Robin, Jean-Patrice |
author_sort |
Groscolas, René |
title |
Spontaneous egg or chick abandonment in energy-depleted king penguins: A role for corticosterone and prolactin? |
title_short |
Spontaneous egg or chick abandonment in energy-depleted king penguins: A role for corticosterone and prolactin? |
title_full |
Spontaneous egg or chick abandonment in energy-depleted king penguins: A role for corticosterone and prolactin? |
title_fullStr |
Spontaneous egg or chick abandonment in energy-depleted king penguins: A role for corticosterone and prolactin? |
title_full_unstemmed |
Spontaneous egg or chick abandonment in energy-depleted king penguins: A role for corticosterone and prolactin? |
title_sort |
spontaneous egg or chick abandonment in energy-depleted king penguins: a role for corticosterone and prolactin? |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.archives-ouvertes.fr/hal-00202784 https://doi.org/10.1016/j.yhbeh.2007.08.010 |
genre |
King Penguins |
genre_facet |
King Penguins |
op_source |
ISSN: 0018-506X EISSN: 1095-6867 Hormones and Behavior https://hal.archives-ouvertes.fr/hal-00202784 Hormones and Behavior, Elsevier, 2008, 53 (1), pp.51-60. ⟨10.1016/j.yhbeh.2007.08.010⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.yhbeh.2007.08.010 info:eu-repo/semantics/altIdentifier/pmid/17920597 hal-00202784 https://hal.archives-ouvertes.fr/hal-00202784 doi:10.1016/j.yhbeh.2007.08.010 PUBMED: 17920597 |
op_doi |
https://doi.org/10.1016/j.yhbeh.2007.08.010 |
container_title |
Hormones and Behavior |
container_volume |
53 |
container_issue |
1 |
container_start_page |
51 |
op_container_end_page |
60 |
_version_ |
1766057842408685568 |