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Author |
Bried J., Jiguet F. & Jouventin P. |
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Title |
Why do Aptenodytes penguins have high divorce rates? |
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Journal Article |
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Year |
1999 |
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Auk |
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Auk |
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Volume  |
116 |
Issue |
2 |
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504-512 |
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109 |
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0004-8038 |
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yes |
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794 |
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Author |
Spear L., Howell S.N.G., Oedekoven C.S., Legay D. & Bried J. |
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Title |
Kleptoparasitism by brown Skuas on albatrosses and giant-petrels in the Indian Ocean. |
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Journal Article |
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Year |
1999 |
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Auk |
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Auk |
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Volume |
116 |
Issue |
2 |
Pages |
545-548 |
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354 |
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0004-8038 |
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yes |
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1108 |
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Author |
France J L, King M D, Lee-Taylor J, Beine H J, Ianniello A, Domine F, MacArthur A, |
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Title |
Calculations of in-snow NO2 and OH radical photochemical production and photolysis rates: A field and radiative-transfer study of the optical properties of Arctic (Ny-Ålesund, Svalbard) snow |
Type |
Journal Article |
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Year |
2011 |
Publication |
J. Geophys. Res. |
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Volume |
116 |
Issue |
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Pages |
F04013 ST - |
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Keywords |
Arctic fluxes hydroxyl radical nitrate snowpack 0736 Cryosphere: Snow (1827, 1863) 0798 Cryosphere: Modeling (1952, 4316), |
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Abstract |
Depth-integrated production rates of OH radicals and NO2 molecules from snowpacks in Ny-Ålesund, Svalbard, are calculated from fieldwork investigating the light penetration depth (e-folding depth) and nadir reflectivity of snowpacks during the unusually warm spring of 2006. Light penetration depths of 8.1, 11.3, 5.1, and 8.2 cm were measured for fresh, old, marine-influenced, and glacial snowpacks, respectively (wavelength 400 nm). Radiative-transfer calculations of the light penetration depths with reflectivity measurements produced scattering cross sections of 5.3, 9.5, 20, and 25.5 m2 kg-1 and absorption cross sections of 7.7, 1.4, 3.4, and 0.5 cm2 kg-1 for the fresh, old, marine-influenced, and glacial snowpacks, respectively (wavelength 400 nm). Photolysis rate coefficients, J, are presented as a function of snow depth and solar zenith angle for the four snowpacks for the photolysis of H2O2 and NO3-. Depth-integrated production rates of hydroxyl radicals are 1270, 2130, 950, and 1850 nmol m-2 h-1 (solar zenith angle of 60°) for fresh, old, marine-influenced, and glacial snowpacks, respectively. Depth-integrated production rates of NO2 are 32, 56, 11, and 22 nmol m-2 h-1 (solar zenith angle of 60°) for the fresh, old, marine-influenced, and glacial snowpacks, respectively. The uncertainty of repeated light penetration depth measurement was determined to be ~20%, which propagates into a 20% error in depth-integrated production rates. A very simple steady state hydroxyl radical calculation demonstrates that a pseudo first-order loss rate of OH radicals of ~102–104 s-1 is required in snowpack. The snowpacks around Ny-Ålesund are thick enough to be considered optically infinite. |
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1017 |
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0148-0227 |
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yes |
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1684 |
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Author |
Lyard F., Le Provost C. & Genco M.L. |
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Title |
The Tides in the Weddell Sea and Ross Sea from a Numerical Hydrodynamic Model. |
Type |
Conference - International - Article without Reading Comitee |
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Year |
1995 |
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Volume |
115 |
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Pages |
21-23 |
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Abstract |
IOC Workshop Report |
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688 |
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yes |
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Serial |
966 |
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Author |
Le Provost C., Molines J.M., Lyard F. & Woppelman G. |
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Title |
Long term sea level observation programme in the South Indian Ocean – A french contribution to WOCE, GLOSS and GOOS. |
Type |
Conference - International - Article without Reading Comitee |
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Year |
1995 |
Publication |
IOC Workshop Report |
Abbreviated Journal |
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Volume |
115 |
Issue |
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Pages |
31-33 |
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Abstract |
IOC Workshop Report |
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688 |
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yes |
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Serial |
1615 |
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Author |
Miramand P. & Bentley D. |
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Title |
Concentration and distribution of heavy metals in tissues of two cephalopods, Eledone cirrhosa and Sepia officinalis from the French Coast of the English channel. |
Type |
Journal Article |
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Year |
1992 |
Publication |
Marine biology |
Abbreviated Journal |
Mar. Biol. |
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Volume |
114 |
Issue |
3 |
Pages |
349-353 |
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280 |
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0025-3162 |
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yes |
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Serial |
100 |
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Author |
Berthier E., Le Bris R., Mabileau L., Testut L. & Rémy F. |
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Title |
Ice wastage on the Kerguelen Islands (49°S, 69°E) between 1963 and 2006 |
Type |
Journal Article |
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Year |
2009 |
Publication |
Journal of Geophysical Research |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
114 |
Issue |
F3 |
Pages |
F03005 |
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Keywords |
ice caps, climate change, remote sensing, Kerguelen Islands, Southern Ocean, mass balance. |
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Abstract |
Ce travail qui n'est pas issu du programme 136 utilise des données climatologiques enregistrées Plaine Ampère et fournies par le 136 |
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136 |
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AGU |
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0148-0227 |
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yes |
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5933 |
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Author |
Dobson, F. S., Nolan, P. M., Nicolaus, M., Bajzak, C., Coquel, A. S. & Jouventin, P. |
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Title |
Comparison of color and body condition between early and late breeding king penguins |
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Journal Article |
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Year |
2008 |
Publication |
Ethology |
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Volume |
114 |
Issue |
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Pages |
925-933 |
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Abstract |
Early breeding is associated with greater reproductive success in many species. In king penguins, Aptenodytes patagonicus, laying extends for 6 mo. Early breeders may fledge a single chick at best, but late breeders virtually never fledge a chick. For early and late breeders, we compared colored ornaments known to be important in mate choice: yellow– orange feathers of the breast and auricular areas, and an ultraviolet and yellow–orange beak spot. Our purpose was to discern differences between males and females in this highly sexually monomorphic species, as well as to discern whether colored ornaments are more important for the more successful early breeders (aspects of color were hue, chroma, and brightness). For this, we weighed and measured 130 penguins. Early males had greater reflectance of ultraviolet color from the beak spot than did early females and late breeders of both sexes, and the early males were heavier and in better condition than late breeding males or females. Late breeding females were the yellowest in breast hue, a trait that has been linked to immunocompetence. Within pairs, males and females were significantly correlated in body mass, but only early in the breeding season. We concluded that early in the breeding season when reproductive success was greatest, potential mates were not only more similar in body mass, but also that females may have chosen males that had brighter beak spots and were in better body condition. |
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354 |
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ISSN |
0179-1613 |
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Serial |
5005 |
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Author |
Viera, V. M., Nolan, P. M., Cote, S. D., Jouventin, P. & Groscolas, R. |
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Title |
Is Territory Defence related to Plumage Ornaments in the King Penguin Aptenodytes patagonicus? |
Type |
Journal Article |
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Year |
2008 |
Publication |
Ethology |
Abbreviated Journal |
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Volume |
114 |
Issue |
2 |
Pages |
146-153 |
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Abstract |
Colourful ornaments in monogamous birds may be directed at potential mates or other conspecifics to signal individual condition, reproductive status or fighting ability, especially in monogamous and territorial species. We investigated whether the size of the orange auricular patch may be an indicator of aggressiveness in the king penguin Aptenodytes patagonicus, a monogamous and territorial seabird. The relationship between auricular patch size and defence behaviour was explored relative to territory location (centre vs. periphery of the colony), period of reproduction (early vs. late), state of reproduction (incubation vs. brooding) and sex. The proportion of time spent in territorial defence and the rate of aggressive behaviours were positively correlated with auricular patch size, mainly because central birds were more aggressive than peripheral birds and also had larger patch sizes. The period of reproduction, state of reproduction and sex did not interact with patch size to affect aggressiveness. Our results suggest that the size of the auricular patch in king penguins may be a reliable signal allowing individuals to evaluate the quality of mates or competitors in terms of aggressiveness. Whether aggressiveness is directly linked to patch size or indirectly through body condition, however, remains to be determined. In any event, birds with larger patches seem to gain central territories in the colony, thereby increasing their reproductive success. Finally, our study adds to the growing evidence that the evolution of sexually monomorphic ornaments may stem from mutual sexual selection. |
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119;354 |
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0179-1613 |
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5015 |
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Author |
Chevallier Frédéric, Engelen Richard J, Carouge Claire, Conway Thomas J, Peylin Philippe, Pickett-Heaps Christopher, Ramonet Michel, Rayner Peter J, Xueref-Remy Irne, |
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Title |
AIRS-based versus flask-based estimation of carbon surface fluxes |
Type |
Journal Article |
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Year |
2009 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
114 |
Issue |
D20 |
Pages |
D20303 - |
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Keywords |
CO 2 surface fluxes, inverse method, AIRS satellite data, 0322 Atmospheric Composition and Structure: Constituent sources and sinks, 0428 Biogeosciences: Carbon cycling, 0480 Biogeosciences: Remote sensing, 0365 Atmospheric Composition and Structure: Troposphere: composition and chemistry, 3315 Atmospheric Processes: Data assimilation, |
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Abstract |
This paper demonstrates an inversion of surface CO2 fluxes using concentrations derived from assimilation of satellite radiances. Radiances come from the Atmospheric Infrared Sounder (AIRS) and are assimilated within the system of the European Centre for Medium-Range Weather Forecasts. We evaluate the quality of the inverted fluxes by comparing simulated concentrations with independent airborne measurements. As a benchmark we use an inversion based on surface flask measurements and another using only the global concentration trend. We show that the AIRS-based inversion is able to improve the match to the independent data compared to the prior estimate but that it usually performs worse than either the flask-based or trend-based inversion. |
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AGU |
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0148-0227 |
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yes |
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1837 |
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