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Author |
Sirignano C, Neubert R E M, Rödenbeck C, Meijer H A J, |
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Title |
Atmospheric oxygen and carbon dioxide observations from two European coastal stations 20002005: continental influence, trend changes and APO climatology
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Type |
Journal Article |
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Year |
2010 |
Publication |
Atmos. Chem. Phys. |
Abbreviated Journal |
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Volume |
10 |
Issue |
4 |
Pages |
1599-1615 |
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Abstract |
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Programme |
439 |
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Thesis  |
Bachelor's thesis |
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Publisher |
Copernicus Publications |
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ISSN |
1680-7324 |
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yes |
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Serial |
3221 |
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Author |
Chevallier F, Ciais P, Conway T J, Aalto T, Anderson B E, Bousquet P, Brunke E G, Ciattaglia L, Esaki Y, Frhlich M, Gomez A, Gomez-Pelaez A J, Haszpra L, Krummel P B, Langenfelds R L, Leuenberger M, Machida T, Maignan F, Matsueda H, Morgu J A, Mukai H, Nakazawa T, Peylin P, Ramonet M, Rivier L, Sawa Y, Schmidt M, Steele L P, Vay S A, Vermeulen A T, Wofsy S, Worthy D, |
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Title |
CO2 surface fluxes at grid point scale estimated from a global 21 year reanalysis of atmospheric measurements
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Type |
Journal Article |
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Year |
2010 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
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Volume |
115 |
Issue |
D21 |
Pages |
D21307- |
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Keywords |
CO2, flux inversion, 0322 Atmospheric Composition and Structure: Constituent sources and sinks, 0428 Biogeosciences: Carbon cycling, 3315 Atmospheric Processes: Data assimilation, 3260 Mathematical Geophysics: Inverse theory, |
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Abstract |
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Programme |
416 |
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Thesis |
Bachelor's thesis |
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Publisher |
AGU |
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Series Issue |
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Edition |
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ISSN |
0148-0227 |
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Approved |
yes |
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Call Number |
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Serial |
3239 |
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Author |
Leclaire Sarah, Bourret Vincent, Wagner Richard H, Hatch Scott A, Helfenstein Fabrice, Chastel Olivier, Danchin Étienne, |
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Title |
Behavioral and physiological responses to male handicap in chick-rearing black-legged kittiwakes
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Type |
Journal Article |
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Year |
2011 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
1045-2249 |
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Volume |
22 |
Issue |
6 |
Pages |
1156 -1165 |
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Keywords |
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Abstract |
Parental investment entails a trade-off between the benefits of effort in current offspring and the costs to future reproduction. Long-lived species are predicted to be reluctant to increase parental effort to avoid affecting their survival. We tested this hypothesis in black-legged kittiwakes Rissa tridactyla by clipping flight feathers of experimental males at the beginning of the chick-rearing period. We analyzed the consequences of this handicap on feeding and attendance behavior, body condition, integument coloration, and circulating levels of corticosterone and prolactin in handicapped males and their mates in comparison to unmanipulated controls. Chicks in both groups were compared in terms of aggressive behavior, growth, and mortality. Handicapped males lost more mass, had less bright integuments, and attended the nest less often than controls. Nevertheless, they fed their chicks at the same rate and had similar corticosterone and prolactin levels. Compared with control females, females mated with handicapped males showed a lower provisioning rate and higher nest attendance in the first days after manipulation. Their lower feeding rate probably triggered the increased sibling aggression and mortality observed in experimental broods. Our findings suggest that experimental females adaptively adjusted their effort to their mate's perceived quality or that their provisioning was constrained by their higher nest attendance. Overall, our results suggest that kittiwake males can decrease their condition for the sake of their chicks, which seems to contradict the hypothesis that kittiwakes should be reluctant to increase parental effort to avoid affecting their survival.
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Programme |
330;1162 |
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Thesis |
Bachelor's thesis |
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Edition |
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ISSN |
1045-2249 |
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Approved |
yes |
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Call Number |
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Serial |
3243 |
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Author |
Authier M, Cam E, Guinet C, |
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Title |
Selection for increased body length in Subantarctic fur seals on Amsterdam Island
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Type |
Journal Article |
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Year |
2011 |
Publication |
Journal of Evolutionary Biology |
Abbreviated Journal |
J. Evol. Biol. |
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Volume |
24 |
Issue |
3 |
Pages |
607-616 |
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Keywords |
Bayesian, pinnipeds, quantitative genetics, selection, |
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Abstract |
The traditional distinction between ecological and evolutionary times is eroding, calling for tighter links between ecology and evolution. An example of such a brigde between the two disciplines is the so-called animal model, a methodology initially developed by animal breeders, which has become very popular among ecologists studying contemporary microevolution. Using a Bayesian multi-trait animal model, we investigated the quantitative genetics of body size, a fitness-related trait, in Subantarctic fur seals (Arctocephalus tropicalis) breeding on Amsterdam Island, Southern Ocean. Our approach jointly modelled the growth and selection processes at work in this population. Body length is heritable for both sexes, and females are under selection for increased body length in this population. We strongly suspect the peculiar ecological context of impoverished, suitable prey availability exacerbated by density-dependence phenomena to be an important selective agent on females breeding on Amsterdam Island.
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Programme |
109 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
Blackwell Publishing Ltd |
Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1420-9101 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
3252 |
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Author |
Charmantier A, Buoro M, Gimenez O, Weimerskirch H, |
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Title |
Heritability of short-scale natal dispersal in a large-scale foraging bird, the wandering albatross
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Type |
Journal Article |
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Year |
2011 |
Publication |
Journal of Evolutionary Biology |
Abbreviated Journal |
J. Evol. Biol. |
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Volume |
24 |
Issue |
7 |
Pages |
1487-1496 |
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Keywords |
Bayesian framework, heritability, liability to disperse, local scale, natal dispersal, seabird, threshold model, |
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Abstract |
Natal dispersal is a key life history trait for the evolution and adaptation of wild populations. Although its evolution has repeatedly been related to the social and environmental context faced by individuals, parentoffspring regressions have also highlighted a possible heritable component. In this study, we explore heritability of natal dispersal, at the scale of the sub-Antarctic Possession Island, for a large-scale foraging seabird, the Wandering albatross Diomedea exulans, exploiting a pedigree spanning over four decades and a maximum of four generations. The comparison of three different methods shows that heritability on the liability scale can vary drastically depending on the type of model (heritability from 6% to 86%), with a notable underestimation by restricted maximum likelihood animal models (6%) compared to Bayesian animal models (36%). In all cases, however, our results point to significant additive genetic variance in the individual propensity to disperse, after controlling for substantial effects of sex and natal colony. These results reveal promising evolutionary potential for short-scale natal dispersal, which could play a critical role for the long-term persistence of this species on the long run.
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Programme |
109 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
Blackwell Publishing Ltd |
Place of Publication |
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Editor |
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Language |
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Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1420-9101 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
3254 |
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Author |
Cherel Yves, Koubbi Philippe, Giraldo Carolina, Penot Florian, Tavernier Eric, Moteki Masato, Ozouf-Costaz Catherine, Causse Romain, Chartier Amélie, Hosie Graham, |
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Title |
Isotopic niches of fishes in coastal, neritic and oceanic waters off Adélie land, Antarctica
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Type |
Journal Article |
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Year |
2011 |
Publication |
Polar Science |
Abbreviated Journal |
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Volume |
5 |
Issue |
2 |
Pages |
286-297 |
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Keywords |
Benthic, Ecological niche, Habitat, Pelagic, Southern Ocean, Stable isotopes, |
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Abstract |
We used the stable isotope method to investigate the ecological niches of Antarctic fishes, with 13C and 15N as proxies of fish habitats and dietary habits, respectively. Muscle isotopic signature was measured for each of 237 delipidated tissue samples from 27 fish species collected offshore Adélie Land, East Antarctica. Overall, 13C values ranged from 25.3 to 18.2, thus allowing characterizing of the fish habitats, with inshore/benthic species having more positive 13C signatures than offshore/pelagic ones. No clear difference in the 13C values of pelagic fishes was found between species living in neritic and oceanic waters. Overall, the 15N signatures of neritic pelagic and epibenthic fishes encompassed 1.0 trophic level (3.1), a higher difference than that (1.4) found within the oceanic assemblage. Fishes with the lowest and highest 15N values are primarily invertebrate- and fish-eaters, respectively. The isotopic niches of fishes illustrate the different mechanisms allowing coexistence, with most fishes segregating at least by one of the two niche axes (13C and 15N). Muscle isotopic values also document interindividual foraging specialization over the long-term in coastal benthic fishes, but not in more offshore pelagic species. Finally, the 15N signatures of fishes overlap with those of penguins and seals, indicating that seabirds and marine mammals share the upper levels of the Antarctic pelagic ecosystem with some large fish species. In conclusion, the concept of isotopic niche is a powerful tool to investigate various aspects of the ecological niche of Antarctic fishes, thus complementing the use of other conventional and non-conventional approaches. |
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Programme |
109;1124;1142 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
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Place of Publication |
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Editor |
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Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1873-9652 |
ISBN |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
3255 |
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| Permanent link to this record |
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Author |
Gastebois C, Viviant M, Guinet C, |
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Title |
Ontogeny of aquatic behaviours in Antarctic fur seal (Arctocephalus gazella) pups in relation to growth performances at Kerguelen Islands
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Type |
Journal Article |
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Year |
2011 |
Publication |
Polar Biology |
Abbreviated Journal |
Polar Biol. |
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Volume |
34 |
Issue |
7 |
Pages |
1097-1103 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
In diving marine predators, such as pinnipeds, the development of diving and foraging skills prior to weaning might be critical to post-weaning survival. Here, we examined the effect of pup mass growth on the amount of time devoted to aquatic activities and the dive performance of Antarctic fur seal, Arctocephalus gazella , pups on Kerguelen Island. Maternal attendance and mass-specific growth rate were assessed for 85 pups. Two types of monitoring were applied: visual observations of behaviours for 60 pups and the deployment of time-depth recorders (TDRs) on 19 female pups. At approximately 2 months of age, pups demonstrated minimal diving behaviour, but displayed considerable aquatic activity. While mothers were foraging at sea, pups fasted on land (6.0 ± 1.3 d). As the mass-specific growth rate was different between sexes, only data on female pups were analysed ( n = 31). Mass-specific growth rate was related to maternal attendance patterns and impacted the amount of time allocated by pups to aquatic activities. The time spent in the water by pups was quadratically related to fasting progress. This study shows the importance of growth and fasting progress on the quantity of time pups devoted to aquatic activities. Our results suggest that greater post-weaning survival of heavier pups may be due not only to their greater body reserves, as reported in several studies, but also possibly to from their greater aquatic skills and physiological adaptations developed during the suckling period. |
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Programme |
109 |
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Campaign |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
Springer Berlin / Heidelberg |
Place of Publication |
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Editor |
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Language |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0722-4060 |
ISBN |
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Medium |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
3256 |
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Author |
Giraldo Carolina, Cherel Yves, Vallet Carole, Mayzaud Patrick, Tavernier Eric, Moteki Masato, Hosie Graham, Koubbi Philippe, |
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Title |
Ontogenic changes in the feeding ecology of the early life stages of the Antarctic silverfish (Pleuragramma antarcticum) documented by stable isotopes and diet analysis in the Dumont dUrville Sea (East Antarctica)
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Type |
Journal Article |
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Year |
2011 |
Publication |
Polar Science |
Abbreviated Journal |
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Volume |
5 |
Issue |
2 |
Pages |
252-263 |
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Keywords |
13C, 15N, Southern Ocean, Trophic relationships, Omnivory, |
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Abstract |
The feeding ecology of the notothenioid fish Pleuragramma antarcticum was studied in the Dumont dUrville Sea (East Antarctica) near the French Antarctic station. Stable isotopes (13C and 15N) and diet contents were used in order to study dietary shifts between fish larvae and juveniles. All specimens had low 13C values (<24), a main characteristic of high-Antarctic pelagic species. Fish larvae showed differences in both carbon and nitrogen ratios when compared with juveniles. Muscle 15N values showed a difference of one trophic level (3) between larvae (6.7) and juveniles (9.710.0) and a trophic position of tertiary consumers. Diet content analyses (stereomicroscope and scanning electron microscopes) indicated that larvae are omnivorous, feeding on phytoplankton (mainly diatoms) as well as on zooplankton species. A positive relationship between 15N values and size was found and indicated a carnivorous diet for older specimens. |
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Programme |
109;1142 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
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Place of Publication |
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Summary Language |
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Series Title |
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Abbreviated Series Title |
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Series Issue |
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Edition |
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ISSN |
1873-9652 |
ISBN |
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Medium |
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Area |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
3257 |
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| Permanent link to this record |
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Author |
Kojadinovic Jessica, Jackson Christine H, Cherel Yves, Jackson George D, Bustamante Paco, |
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Title |
Multi-elemental concentrations in the tissues of the oceanic squid Todarodes filippovae from Tasmania and the southern Indian Ocean
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Type |
Journal Article |
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Year |
2011 |
Publication |
Ecotoxicology and Environmental Safety |
Abbreviated Journal |
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Volume |
74 |
Issue |
5 |
Pages |
1238-1249 |
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Keywords |
Cephalopod, Southern Indian Ocean, Tasmania, Metals, Bioaccumulation, Consumption guidelines, |
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Abstract |
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Programme |
109 |
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Thesis |
Bachelor's thesis |
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Place of Publication |
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Summary Language |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0147-6513 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
3260 |
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| Permanent link to this record |
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Author |
Thiebot JB, Cherel Y, Trathan PN, Bost CA, |
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Title |
Inter-population segregation in the wintering areas of macaroni penguins
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Type |
Journal Article |
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Year |
2011 |
Publication |
Mar Ecol Prog Ser |
Abbreviated Journal |
Mar. Ecol. Prog. Ser. |
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Volume |
421 |
Issue |
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Pages |
279-290 |
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Keywords |
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Abstract |
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Programme |
109;394 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Publisher |
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Place of Publication |
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Language |
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Summary Language |
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Original Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0171-8630 |
ISBN |
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Medium |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
3261 |
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| Permanent link to this record |
