AustralieFrV1, Main, Exploration, bibRecord, 008C88

How do weather conditions affect the huddling behaviour of emperor penguins?

Identifieur interne : 008C88 ( Main/Exploration ); précédent : 008C87; suivant : 008C89

How do weather conditions affect the huddling behaviour of emperor penguins?

Auteurs : Caroline Gilbert [France] ; Graham Robertson [Australie] ; Yvon Le Maho [France] ; André Ancel [France]

Source :

Polar biology : (Print) [ 0722-4060 ] ; 2008.

RBID : Pascal:08-0100199

Descripteurs français

Pascal (Inist)
- Temps météorologique, Température, Vent, Zone polaire, Comportement grégaire, Vitesse vent, Dépense énergétique, Adaptation, Facteur milieu, Froid, Milieu extrême, Hiver, Terre Adélie, Déplacement actif animal, Groupement animal, Milieu marin, Aptenodytes forsteri, Pointe Géologie, Comportement en tortue.
Wicri :
- topic : Milieu marin.

English descriptors

KwdEn :
- Adaptation, Adelie Coast, Animal active movement, Animal grouping, Aptenodytes forsteri, Cold, Energetic cost, Environmental factor, Extreme environment, Gregarious behavior, Huddling behaviour, Marine environment, Polar region, Temperature, Weather, Wind, Wind velocity, Winter.

Abstract

Huddling allows emperor penguins to conserve energy and survive their long winter fast while facing harsh climatic conditions. Here we report the first investigation into the effects of changes in wind speed and ambient temperature on different components of penguin huddling behaviour. We attached light and temperature recorders to male emperor penguins at the Pointe Géologie colony, Antarctica, which recorded huddling events. We then compared the frequency, duration, occurrence and intensity of huddling bouts, with ambient air temperatures and wind speeds. Huddling occurrence increased with lower ambient temperatures and higher wind speeds, whereas huddling intensity was mainly enhanced by lower ambient temperatures. Moreover, huddling group movements were linked to wind direction and its global density to lower ambient temperatures. Hence, emperor penguins complex huddling behaviour was modulated differently depending on these two parameters. Weather conditions may then affect emperor penguins ability to save energy and survive their winter fast.

Affiliations:

Links toward previous steps (curation, corpus...)

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to stream Main, to step Curation: 008C88

Le document en format XML

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<front><div type="abstract" xml:lang="en">Huddling allows emperor penguins to conserve energy and survive their long winter fast while facing harsh climatic conditions. Here we report the first investigation into the effects of changes in wind speed and ambient temperature on different components of penguin huddling behaviour. We attached light and temperature recorders to male emperor penguins at the Pointe Géologie colony, Antarctica, which recorded huddling events. We then compared the frequency, duration, occurrence and intensity of huddling bouts, with ambient air temperatures and wind speeds. Huddling occurrence increased with lower ambient temperatures and higher wind speeds, whereas huddling intensity was mainly enhanced by lower ambient temperatures. Moreover, huddling group movements were linked to wind direction and its global density to lower ambient temperatures. Hence, emperor penguins complex huddling behaviour was modulated differently depending on these two parameters. Weather conditions may then affect emperor penguins ability to save energy and survive their winter fast.</div>
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How do weather conditions affect the huddling behaviour of emperor penguins?

How do weather conditions affect the huddling behaviour of emperor penguins?

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri