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Author |
Gattuso J.-P., Comeau S. & Maier C. |
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Title |
Impact of ocean acidification on marine snails and deep-sea corals. |
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Report |
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Year |
2009 |
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Volume  |
73 |
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29 |
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1008 |
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yes |
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5993 |
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Author |
Stuster J., Bachelard C. & Suedfeld P. |
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Title |
The relative importance of behavioural issues during long-duration ICE missions. |
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Journal Article |
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Year |
2000 |
Publication |
Aviation space and environmental medicine |
Abbreviated Journal |
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Volume |
71 |
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252;374 |
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0095-6562 |
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yes |
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1730 |
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Author |
Lecomte N., Kuntz G., Lambert N., Gendner J.P., Handrich Y., Le Maho Y., & Bost C.A. |
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Title |
Alloparental feeding in the King penguin, Aptenodytes patagonicus. |
Type |
Journal Article |
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Year |
2006 |
Publication |
Animal behaviour |
Abbreviated Journal |
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Volume |
71 |
Issue |
2 |
Pages |
457-462 |
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Abstract |
We investigated allofeeding (feeding of offspring by adults other than their own parents) in the king penguin, Aptenodytes patagonicus, a long-lived pelagic bird that faces severe food shortages during its reproduction and in which parents leave their fasting chick in dense crèches. A 1-year monitoring of 103 breeding pairs and 70 chicks was carried out in a colony in the Crozet Archipelago. We examined whether allofeeding was common enough to alter survival costs or benefits for both the allofed chicks and the allofeeders. Twenty-two per cent of marked adults allofed more than 65% of all the chicks without repeatedly feeding the same chick. Allofeeding in king penguins benefited allofed chicks by increasing their survival, yet little or no fitness cost was detected among allofeeders. We identified proximal factors affecting allofeeding: (1) the breeding conditions of the population were not unusual; (2) allofeeding occurred mostly when parental provisioning was low; (3) alloparents did not respond to increased begging by regurgitating more meals; (4) allofeeders were mostly failed breeders, although successful breeders occasionally allofed; (5) when the colony was no longer organized into breeder territories, allofeeders preferentially fed chicks that had been reared by close neighbours at the time of brooding. |
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394 |
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0003-3472 |
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yes |
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3017 |
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Author |
POITRASSON F., G. DELPECH, M. GRÉGOIRE AND B.N. MOINE |
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Title |
Significance of the mantle Fe isotope variations |
Type |
Conference - International - Communication |
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Year |
2007 |
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Volume |
71 |
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Abstract |
Geochim. Cosmochim. Acta |
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444 |
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yes |
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5085 |
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Author |
Jumelet J., C. David, S. Bekki, and P. Keckhut |
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Title |
Uniwavelength lidar sensitivity to spherical aerosol microphysical properties for the interpretation of lagrangian stratospheric observations |
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Journal Article |
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Year |
2009 |
Publication |
JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS |
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Volume |
71 |
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Pages |
121-131 |
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209 |
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ISSN |
1364-6826 |
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Approved |
yes |
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Serial |
5678 |
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Author |
Le Bohec C., Gauthier-Clerc M. & Le Maho Y. |
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Title |
The adaptive significance of crèches in the king penguin. |
Type |
Journal Article |
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Year |
2005 |
Publication |
Animal behaviour |
Abbreviated Journal |
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Volume |
70 |
Issue |
3 |
Pages |
527-538 |
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Abstract |
Crèching behaviour in penguins is defined as the rearing of chicks by their own parents in large flocks called 'crèches'. Although several hypotheses have been proposed to account for the behaviour, the factors inducing chicks to aggregate remain relatively poorly understood, in particular for colonial seabirds. We studied crèching behaviour in the king penguin, Aptenodytes patagonicus, by looking at the dynamics of crèche formation and possible costs and benefits associated with this strategy. Crèches increased in size but declined in number throughout the austral winter. They were located preferentially in the central parts of the colony. Lone chicks suffered the most aggression from unrelated adults, whereas chicks in a crèche suffered the least. Chicks attacked by unrelated adults preferentially joined a crèche. Adult aggression appeared to be a major factor inducing crèching behaviour. Chicks at the periphery of a crèche were more vigilant while sleeping, as measured by eye openings. Crèches seemed to occasion intense competition among chicks for access to the centre. Chicks in poor condition were attacked and pushed to the periphery of the crèche, where they were preyed on by giant petrels. During harsh weather conditions, chicks amalgamated into larger crèches, tolerated lower interindividual distances and turned their backs to the wind and rain. Our results accord with the idea that crèching behaviour in king penguins is a strategy that protects chicks from adult aggression, predation and severe weather. |
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137 |
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ISSN |
0003-3472 |
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yes |
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Call Number |
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Serial |
2901 |
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Author |
Marx J.C., Poncin J., Simorre J.P., Ramteke P.W. & Feller, G. |
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Title |
The non-catalytic triad of alpha-amylases: a novel structural motif involved in conformational stability. |
Type |
Journal Article |
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Year |
2008 |
Publication |
Proteins: Structure, Function, and Bioinformatics |
Abbreviated Journal |
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Volume |
70 |
Issue |
2 |
Pages |
320-328 |
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Abstract |
Chloride-activated alpha-amylases contain a noncatalytic triad, independent of the glycosidic active site, perfectly mimicking the catalytic triad of serine-proteases and of other active serine hydrolytic enzymes. Mutagenesis of Glu, His, and Ser residues in various alpha-amylases shows that this pattern is a structural determinant of the enzyme conformation that cannot be altered without losing the intrinsic stability of the protein. 1H-15N NMR spectra of a bacterial alpha-amylase reveal proton signals that are identical with the NMR signature of catalytic triads and especially a deshielded proton involving a protonated histidine and displaying properties similar to that of a low barrier hydrogen bond. It is proposed that the H-bond between His and Glu of the noncatalytic triad is an unusually strong interaction, responsible for the observed NMR signal and for the weak stability of the triad mutants. Furthermore, a stringent template-based search of the Protein Data Bank demonstrated that this motif is not restricted to alpha-amylases, but is also found in 80 structures from 33 different proteins, amongst which SH2 domain-containing proteins are the best representatives. |
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193 |
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Bachelor's thesis |
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ISSN |
1097-0134 |
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yes |
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Serial |
4526 |
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Author |
Scanff C., Larue J. & Rosnet E L.E. |
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Title |
How to measure human adaptation in extreme environment: The case of Antarctic winter-owering. |
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Journal Article |
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Year |
1997 |
Publication |
Aviation space and environmental medicine |
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Volume |
68 |
Issue |
12 |
Pages |
1144-1149 |
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252 |
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0095-6562 |
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yes |
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Serial |
129 |
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Author |
Criscuolo F., Gabrielsen G.W., Gendner J.P. & Le Maho Y. |
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Title |
An automatic weighing system application in a study of the common eider Somateria mollissima breeding biology. |
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Journal Article |
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Year |
2000 |
Publication |
Alauda |
Abbreviated Journal |
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Volume |
68 |
Issue |
1 |
Pages |
59-63 |
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332 |
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0002-4619 |
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yes |
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Serial |
194 |
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Author |
Tatischeff V., Duprat J., Kiener J., Assuncao M., Coc A., Engrand C., Gounelle M., Lefebvre A., Porquet M.G., De Sereville N., Thibaud J.P., Bourgeois C., Chabot M., Hammache F., . & Scarpaci J.A. |
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Title |
Cross sections relevant to gamma-ray line emission in solar flares: 3He-induced reactions on 16O nuclei. |
Type |
Journal Article |
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Year |
2003 |
Publication |
Physical review c |
Abbreviated Journal |
Phys. Rev., C Nucl. Phys. |
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Volume |
68 |
Issue |
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Pages |
25804 |
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1065 |
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ISSN |
0556-2813 |
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yes |
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Call Number |
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Serial |
2758 |
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