Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans)
International audience Sex ratio theory is one of the most controversial topics in evolutionary ecology. Many deviations from an equal production of males and females are reported in the literature, but few patterns appear to hold across species or populations. There is clearly a need to identify fi...
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fttriple:oai:gotriple.eu:10670/1.gav235 2023-05-15T16:00:53+02:00 Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans) Blanchard, Pierrick Hanuise, N. Dano, Stéphanie Weirmerskirch, Henri Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS) Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Physiologie intégrative, cellulaire et moléculaire (PICM) Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon 2007-01-01 https://hal.archives-ouvertes.fr/hal-00182447 en eng HAL CCSD Springer Verlag hal-00182447 10670/1.gav235 https://hal.archives-ouvertes.fr/hal-00182447 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0340-5443 EISSN: 1432-0762 Behavioral Ecology and Sociobiology Behavioral Ecology and Sociobiology, Springer Verlag, 2007, 61, pp.767-773 Sex ratio . Fitness return . Structural size . Body condition . Diomedea exulans psy envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2007 fttriple 2023-01-22T16:46:08Z International audience Sex ratio theory is one of the most controversial topics in evolutionary ecology. Many deviations from an equal production of males and females are reported in the literature, but few patterns appear to hold across species or populations. There is clearly a need to identify fitness effects of sex ratio variation. We studied this aspect in a population of a long-lived seabird, the wandering albatross (Diomedea exulans), using molecular sex-identification techniques. We report that parental traits affect both (1) fledgling traits in a sex-dependent way and (2) chick sex: Sons are overproduced when likely to be large at fledging and, to a lesser extent, daughters are overproduced when likely to be in good body condition at fledging. Because for the same population, a previous study reported that postfledging survival was positively affected by size in males and by body condition in females, our results suggest that wandering albatrosses manipulate offspring sex to increase post-fledging survival. Article in Journal/Newspaper Diomedea exulans Wandering Albatross Unknown |
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Open Polar |
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language |
English |
topic |
Sex ratio . Fitness return . Structural size . Body condition . Diomedea exulans psy envir |
spellingShingle |
Sex ratio . Fitness return . Structural size . Body condition . Diomedea exulans psy envir Blanchard, Pierrick Hanuise, N. Dano, Stéphanie Weirmerskirch, Henri Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans) |
topic_facet |
Sex ratio . Fitness return . Structural size . Body condition . Diomedea exulans psy envir |
description |
International audience Sex ratio theory is one of the most controversial topics in evolutionary ecology. Many deviations from an equal production of males and females are reported in the literature, but few patterns appear to hold across species or populations. There is clearly a need to identify fitness effects of sex ratio variation. We studied this aspect in a population of a long-lived seabird, the wandering albatross (Diomedea exulans), using molecular sex-identification techniques. We report that parental traits affect both (1) fledgling traits in a sex-dependent way and (2) chick sex: Sons are overproduced when likely to be large at fledging and, to a lesser extent, daughters are overproduced when likely to be in good body condition at fledging. Because for the same population, a previous study reported that postfledging survival was positively affected by size in males and by body condition in females, our results suggest that wandering albatrosses manipulate offspring sex to increase post-fledging survival. |
author2 |
Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS) Centre d'études biologiques de Chizé (CEBC) Centre National de la Recherche Scientifique (CNRS) Physiologie intégrative, cellulaire et moléculaire (PICM) Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon |
format |
Article in Journal/Newspaper |
author |
Blanchard, Pierrick Hanuise, N. Dano, Stéphanie Weirmerskirch, Henri |
author_facet |
Blanchard, Pierrick Hanuise, N. Dano, Stéphanie Weirmerskirch, Henri |
author_sort |
Blanchard, Pierrick |
title |
Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans) |
title_short |
Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans) |
title_full |
Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans) |
title_fullStr |
Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans) |
title_full_unstemmed |
Offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (Diomedea exulans) |
title_sort |
offspring sex ratio in relation to parental structural size and body condition in the long-lived wandering albatross (diomedea exulans) |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.archives-ouvertes.fr/hal-00182447 |
genre |
Diomedea exulans Wandering Albatross |
genre_facet |
Diomedea exulans Wandering Albatross |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0340-5443 EISSN: 1432-0762 Behavioral Ecology and Sociobiology Behavioral Ecology and Sociobiology, Springer Verlag, 2007, 61, pp.767-773 |
op_relation |
hal-00182447 10670/1.gav235 https://hal.archives-ouvertes.fr/hal-00182447 |
op_rights |
undefined |
_version_ |
1766396902773882880 |