Výsledky vyhledávání - "René, Groscolas"

Akademický článek

It costs to be clean and fit: energetics of comfort behavior in breeding-fasting penguins.

Autor: Vincent A Viblanc, Adeline Mathien, Claire Saraux, Vanessa M Viera, René Groscolas

Publikováno v: PLoS ONE, Vol 6, Iss 7, p e21110 (2011)

Birds may allocate a significant part of time to comfort behavior (e.g., preening, stretching, shaking, etc.) in order to eliminate parasites, maintain plumage integrity, and possibly reduce muscular ankylosis. Understanding the adaptive value of com

Externí odkaz: https://doaj.org/article/783f215c29f249b191ebbba10502aef3

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An integrative appraisal of the hormonal and metabolic changes induced by acute stress using king penguins as a model

Autor: Tina Cornioley, Jean-Patrice Robin, René Groscolas, Antoine Stier, Quentin Schull, Jean-Jérôme Ménard, Vincent A. Viblanc

Publikováno v: General and Comparative Endocrinology
General and Comparative Endocrinology, Elsevier, 2018, ⟨10.1016/j.ygcen.2017.08.024⟩
General and Comparative Endocrinology, Elsevier, 2017, ⟨10.1016/j.ygcen.2017.08.024⟩

International audience; A large number of studies have focused on the reactivity of the hypothalamic-pituitaryadrenal (HPA) axis and the consequences of glucocorticoids (GC) in mediating life-history trade-offs. Although short-term increases in GCs a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95e1e07cc369ca960c3eed0072f9b0cb
https://hal.archives-ouvertes.fr/hal-02362351/document

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Interspecific variations in the gastrointestinal microbiota in penguins

Autor: René Groscolas, Peter Dann, John P. Y. Arnould, Phil Trathan, Stuart C. Smith, Meagan Dewar

Publikováno v: MicrobiologyOpen

Despite the enormous amount of data available on the importance of the gastrointestinal (GI) microbiota in vertebrate (especially mammals), information on the GI microbiota of seabirds remains incomplete. As with many seabirds, penguins have a unique

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9718fddaa13aadf3b08d0cb478f4481b
http://europepmc.org/articles/PMC3584224

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Hormonal responses to extreme fasting in subantarctic fur seal (Arctocephalus tropicalis) pups

Autor: René Groscolas, Shannon Atkinson, Christophe Guinet, John P. Y. Arnould, Delphine Verrier

Publikováno v: AJP-Regulatory, Integrative and Comparative Physiology
AJP-Regulatory, Integrative and Comparative Physiology, American Physiological Society, 2012, 302, pp.R929-R940. ⟨10.1152/ajpregu.00370.2011⟩

Surviving prolonged fasting implies closely regulated alterations in fuel provisioning to meet metabolic requirements, while preserving homeostasis. Little is known, however, of the endocrine regulations governing such metabolic adaptations in natura

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3655ee453495068a5553c93451130c14
https://doi.org/10.1152/ajpregu.00370.2011

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Coping with social stress: heart rate responses to agonistic interactions in king penguins

Autor: Marion Kauffmann, Vincent A. Viblanc, Victorien Valette, René Groscolas, Nelly Malosse

Publikováno v: Behavioral Ecology
Behavioral Ecology, Oxford University Press (OUP), 2012, 23 (6), pp.1178-1185. ⟨10.1093/beheco/ars095⟩

In colonial breeders, agonistic interactions between conspecifics are frequent and may have significant physiological implications. Physiological responses (e.g., increased heart rate) to such social stressors may be determined by the potential costs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d3291afce9cfc4da40d2255e298f714
http://hdl.handle.net/10.1093/beheco/ars095

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The ontogeny of diving abilities in subantarctic fur seal pups: developmental trade-off in response to extreme fasting?

Autor: Scott A. Shaffer, René Groscolas, Matthieu Authier, Daniel P. Costa, Yann Tremblay, Christophe Guinet, Delphine Verrier, John P. Y. Arnould

Publikováno v: Functional Ecology. 25:818-828

Summary 1. A major hypothesis of life-history theory is that conditions of early development affect future survival and reproductive success. Responses to detrimental environments during early ontogeny may involve trade-offs between current and futur

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::192fdaaa508318d6f5eb6bcdd174cb78
https://doi.org/10.1111/j.1365-2435.2011.01846.x

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Development of fasting abilities in subantarctic fur seal pups: balancing the demands of growth under extreme nutritional restrictions

Autor: John P. Y. Arnould, Delphine Verrier, René Groscolas, Christophe Guinet

Publikováno v: Functional Ecology. 25:704-717

Summary 1. Surviving prolonged food deprivation requires various metabolic adaptations such as energy and protein sparing, which can be highly conflicting with energy-demanding stages of an animal’s life history such as growth. 2. Due to the matern

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a49de44820cf1e1f5e3a842c58d67f08
https://doi.org/10.1111/j.1365-2435.2010.01823.x

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State-dependent decisions during the fledging process of king penguin chicks

Autor: René Groscolas, Sylvie Geiger, Francis Morlon, Hélène Corbel

Publikováno v: Animal Behaviour
Animal Behaviour, Elsevier Masson, 2009, 78, pp.829-838. ⟨10.1016/j.anbehav.2009.06.019⟩

International audience; In birds, the chick's physical state at nest departure is critical for survival, especially for seabirds that shift from a terrestrial to a marine life. The timing of this life history transition should therefore be finely tun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22a86a9674258248a9287efda76efeb3
https://doi.org/10.1016/j.anbehav.2009.06.019

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