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Author  |
Angelier Frédéric, Wingfield John C, Weimerskirch Henri, Chastel Olivier, |
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Title |
Hormonal correlates of individual quality in a long-lived bird: a test of the 'corticosterone-fitness hypothesis'.
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Journal Article |
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Year |
2010 |
Publication |
Biology letters |
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6 |
Issue |
6 |
Pages |
846 -9 |
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Keywords |
Animals, Birds, Birds: blood, Birds: physiology, Breeding, Corticosterone, Corticosterone: blood, Female, Genetic Fitness, Male, Models, Biological, Reproduction, Reproduction: physiology, Seasons, |
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Abstract |
Measuring individual quality in vertebrates is difficult. Focusing on allostasis mechanisms may be useful because they are functionally involved in the ability of an individual to survive and reproduce in its environment. Thus, a rise in stress hormones levels (corticosterone) occurs when an organism has to cope with challenging environmental conditions. This has recently led to the proposal of the 'cort-fitness hypothesis', which suggests that elevated baseline corticosterone levels should be found in individuals of poor quality that have difficulty coping with their environment. We tested this hypothesis by comparing an integrative measure of individual quality to baseline corticosterone in black-browed albatrosses (Thalassarche melanophrys). We found that individual baseline corticosterone levels were related to individual quality and highly repeatable from one breeding season to the next. Importantly, this relationship was found in males, but not in females. Therefore, we suggest that the relationship between quality and baseline corticosterone levels may depend on the environmental and energetic constraints that individuals have to cope with.
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1644-7700 |
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yes |
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445 |
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Author |
Angelier J. & Bergerat F. |
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Title |
The South Iceland Seismic zone – Part II: Stress fields and mecanisms of seismogenic faults. |
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Conference - International - Article without Reading Comitee |
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1997 |
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Abstr., Workshop Prenlab – 1, 24-25 octobre Paris |
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316 |
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yes |
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6 |
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Author |
Angelier J. & Bergerat F. |
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Title |
Stress fields and mechanisms of seismology faults: The South Iceland Seismic zone as a case example. |
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Conference - International - Article without Reading Comitee |
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1998 |
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Abstr., Intern. Workshop, Lamerino, 3-6 juin |
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316 |
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yes |
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898 |
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Angelier J. & Bergerat F. |
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Title |
Behaviour of a rupture of the 21 june 2000 earthquake in South Iceland as revealed in an asphalted car park. |
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Journal Article |
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2002 |
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Journal of structural geology |
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24 |
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1925-1936 |
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316 |
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0191-8141 |
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yes |
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1497 |
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Author |
ANGELIER J., BERGERAT F. et BELLOU M. |
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Title |
Push-up studies and determination of ancient earthquake magnitudes in the South Iceland Seismic Zone |
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Conference - International - Communication |
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2005 |
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. Communication à l’ EGU Gen. Ass., 24-29 avril, Wien, abstract EGU05-A-09570. |
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316 |
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yes |
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4137 |
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Author |
ANGELIER J., BELLOU M., BERGERAT F. et DIAMENT M. |
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Title |
Earthquake magnitude indicated by push-up structures along active strike-slip faults of the South Iceland Seismic Zone |
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Conference - International - Communication |
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2006 |
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. Communication à l’ EGU Gen. Ass., 2-7 avril, Wien, abstract. |
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316 |
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yes |
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4142 |
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Author |
Angelier J., Bergerat F. & Homberg C. |
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Title |
Variable coupling across weak oceanic transform fault:Flateyjarskagi, Iceland. |
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Journal Article |
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Year |
2001 |
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Terra nova |
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12 |
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97-101 |
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316 |
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0954-4879 |
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yes |
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2092 |
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Author |
Angelier J., Bergerat F. & Rognvaldsson S. |
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Title |
Seismogenic stress field in the South Iceland seismic zone. |
Type |
Conference - International - Article without Reading Comitee |
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Year |
1997 |
Publication |
E.G.S. XXII |
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Abstr., E.G.S. XXII Gen. Ass. Nice, 20-24 avril |
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316 |
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2078 |
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Author |
ANGELIER J., BERGERAT F. et STEFANSSON R. |
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Title |
Average crustal stress regimes revealed by mass inversion of earthquake mechanisms with various magnitudes : the South Iceland Seismic Zone |
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Conference - International - Communication |
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2006 |
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. Communication à l’ EGU Gen. Ass., 2-7 avril, Wien, abstract. |
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316 |
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yes |
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4143 |
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Author |
Angelier J., Bergerat F., Bellou M. & Homberg C. |
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Title |
Co-seismic strike-slip displacement determined from push-up structures : the Selsund fault case, South Iceland. |
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Journal Article |
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2004 |
Publication |
Journal of structural biology |
Abbreviated Journal |
J. Struct. Biol. |
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26 |
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Pages |
709-724 |
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316 |
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1047-8477 |
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2553 |
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