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Author |
Loïc Teulier |
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Title |
Adaptations métaboliques du caneton de Barbarie (Cairina moschata) et du manchot Royal (Aptenodytes patagonicus) en réponse à un stress chronique froid |
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2010 |
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Supervisors Dr Jean Louis Rouanet and Damien Roussel |
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131 |
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yes |
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471 |
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Author |
Harrison A.P., Tivey D.R., Clausen T., Duchamp C. & Dauncey M.J. |
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Title |
Role of thyroid hormones in early postnatal development of skeletal muscle and its implicationsfor undernutrition. |
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Journal Article |
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Year |
1996 |
Publication |
British journal of nutrition |
Abbreviated Journal |
Br. J. Nutr. |
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Volume |
76 |
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Pages |
841-855 |
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131 |
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ISSN |
0007-1145 |
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yes |
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472 |
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Author |
Ashford J.R., Duhamel G. & Purves P. |
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Title |
A protocol for randomised sampling of longlines in the Southern Ocean fishery for Dissostichus eleginoides: system of international scientific observations, CCAMLR. |
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Journal Article |
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Year |
1998 |
Publication |
W6. FSA 98/60 |
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15 |
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180 |
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Bachelor's thesis |
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yes |
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473 |
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Author |
Putaud J.P. & Nguyen B.C. |
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Title |
Assessment of Dimethyl sulfide sea-air exchange rate. |
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Journal Article |
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Year |
1996 |
Publication |
Journal of geophysical research-atmospheres |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
101 |
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Pages |
4403-4411 |
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146 |
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ISSN |
0148-0227 |
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yes |
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474 |
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Author |
Wakefield Ewan D, Phillips Richard A, Trathan Philip N, Arata Javier, Gales Rosemary, Huin Nic, Robertson Graham, Waugh Susan M, Weimerskirch Henri, Matthiopoulos Jason, |
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Title |
Habitat preference, accessibility, and competition limit the global distribution of breeding Black-browed Albatrosses
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Journal Article |
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Year |
2011 |
Publication |
Ecological Monographs |
Abbreviated Journal |
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Volume |
81 |
Issue |
1 |
Pages |
141 -167 |
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Abstract |
Telemetry methods and remote sensing now make it possible to record the spatial usage of wide-ranging marine animals and the biophysical characteristics of their pelagic habitats. Furthermore, recent statistical advances mean that such data can be used to test ecological hypotheses and estimate species distributions. Black-browed Albatrosses Thalassarche melanophrys are highly mobile marine predators with a circumpolar breeding and foraging distribution in the Southern Hemisphere. Although they remain relatively abundant, increased fisheries bycatch has led to their listing as endangered by conservation bodies. We satellite-tracked 163 breeding Black-browed Albatrosses and eight closely related Campbell Albatrosses T. impavida from nine colonies. We then quantified habitat usage, and modeled population-level spatial distribution at spatiotemporal scales .50 km and 1 month, as a function of habitat accessibility, habitat preference, and intraspecific competition, using mixed-effects generalized additive models (GAMM). During incubation, birds foraged over a wider area than in the post-brood chick-rearing period, when they are more time constrained. Throughout breeding, the order of habitat preference of Black-browed Albatrosses was for neritic (0500 m), shelf-break and upper shelf-slope (5001000 m), and then oceanic (.1000 m) waters. Black-browed Albatrosses also preferred areas with steeper (.38) bathymetric relief and, in addition, during incubation, warmer sea surface temperatures (peak preference ;168C). Although this suggests specialization in neritic habitats, incubation-stage Black- browed Albatrosses from South Georgia also foraged extensively in oceanic waters, preferring areas with high eddy kinetic energy (.250 cm2/s2), especially the Brazil-Malvinas Confluence, a region of intense mesoscale turbulence. During chick-rearing, this species had a more southerly distribution, and following the seasonal retreat of sea ice, birds from some populations utilized neritic polar waters. Campbell Albatrosses showed similar bathymetric preferences but also preferred positive sea level anomalies. Black-browed Albatross foraging areas were partially spatially segregated with respect to colony and region, with birds preferring locations distant from neighboring colonies, presumably in order to reduce competition between parapatric conspecifics. At the global scale, the greatest concentrations of breeding Black-browed Albatrosses are in southern South American neritic, shelf-break, and shelf-slope waters. These regions also hold large fisheries and should therefore be a priority for introduction of bycatch mitigation measures.
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109 |
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Ecological Society of America |
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ISSN |
0012-9615 |
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Approved |
yes |
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Call Number |
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Serial |
475 |
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Author |
Weimerskirch H. |
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Title |
Seabird demography and its relationship with the marine environment. |
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Book Chapter |
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Year |
2001 |
Publication |
Biology of marine birds |
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Pages |
115-135 |
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Abstract |
in E.A. Schreiber & J. Burger (Eds) Biology of Marine Birds (CRC Marine Biology), Boca Raton London New York Washington D.C. |
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109 |
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Bachelor's thesis |
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yes |
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Serial |
476 |
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Author |
Charrier Isabelle, Aubin Thierry, Mathevon Nicolas, |
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Title |
MotherCalf vocal communication in Atlantic walrus: a first field experimental study
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Type |
Journal Article |
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Year |
2010 |
Publication |
Animal Cognition |
Abbreviated Journal |
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Volume |
13 |
Issue |
3 |
Pages |
471-482 -482 |
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Keywords |
Biomedical and Life Sciences, |
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Abstract |
In all colonial pinnipeds studied, motheryoung vocal recognition exists and allows rapid and reliable meetings in spite of the confusing environment of the breeding colony. The efficiency of this recognition process guarantees pup survival, especially in species where females alternate foraging sea trips and lactation periods on land. The Atlantic Walrus (Odobenus rosmarus rosmarus) is a highly gregarious pinniped with females attending their calves for an extended period of time (23 years). Although we expect mothercalf vocal recognition to occur in this species due to the high density of individuals packed in herds, it has never been experimentally demonstrated. Here, we assessed the individual stereotypy of both mother and calf barks recorded in the wild by measuring frequency and temporal acoustic parameters. Both discriminant function and artificial neural network analyses resulted in high correct classification rates, underlying a well-defined individual stereotypy in parameters related to frequency modulation and frequency values. Playback experiments showed that mothers were more responsive to the barks of their own calf than to those of unrelated young. Finally, propagation experiments revealed that barks propagate at greater distances over water surface than over ice, acoustic features such as frequency modulation and frequency spectrum being highly resistant to degradation during propagation. Thus, acoustic analysis and propagation experiments suggest that these frequency parameters might be the key acoustic features involved in the individual identification process. This experimental study clearly demonstrates that Atlantic walrus has developed a highly reliable mothercalf vocal communication allowing such strong social bond. |
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450 |
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Springer Berlin / Heidelberg |
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ISSN |
1435-9448 |
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yes |
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Serial |
477 |
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Author |
Henry B. & Plessard C. |
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Title |
New paleomagnetic results from the Kerguelen Islands. |
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Journal Article |
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Year |
1997 |
Publication |
Geophysical journal international |
Abbreviated Journal |
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Volume |
128 |
Issue |
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Pages |
73-83 |
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310 |
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ISSN |
0956-540X |
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yes |
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Serial |
478 |
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Author |
Sionneau T, Bout-Roumazeilles V, Flower BP, Bory A, Tribovillard N, Kissel C, Van Vliet-Lanoë B, Montero Serrano JC, |
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Title |
Provenance of freshwater pulses in the Gulf of Mexico during the last deglaciation
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Type |
Journal Article |
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Year |
2010 |
Publication |
Quaternary Research |
Abbreviated Journal |
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Volume |
74 |
Issue |
2 |
Pages |
235-245 |
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Keywords |
Deglaciation, Meltwater pulse, Laurentide Ice Sheet, Clay minerals, Orca Basin, Mississippi River, |
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Abstract |
During the last deglaciation, the decaying Laurentide Ice Sheet (LIS) delivered huge volumes of meltwater toward the Gulf of Mexico. The present investigation of clay mineralogy and grain-size characteristics of terrigenous sediments deposited in the Orca Basin (Gulf of Mexico) offers a unique opportunity to link the marine record of these meltwater floods with the reconstructed continental glacial history and the modeled drainage patterns. Five peculiar sedimentary levels, characterized by high smectite content and low CaCO3 content, were identified and occurred simultaneously with major meltwater floods. According to recently published clay mineral distribution maps for North America, these results help to pinpoint the southwestern margin of the LIS as a main contributor to most of the meltwater discharges. In addition, the peculiar mineralogical composition (illite and chlorite-rich) of the sediments characterizing the meltwater episode associated with Heinrich event 1 suggests a provenance from the Great Lakes area, supporting the interpretation of destabilization of the LIS southeastern margin during this event. Decreased terrigenous contribution associated with changing provenance of sediments after 12.9 cal ka BP suggests strong modifications of the continental hydrography in relation to Lake Agassiz history and changes in the morphology of Mississippi delta due to rising sea level. |
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Programme |
316 |
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ISSN |
0033-5894 |
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yes |
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Call Number |
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Serial |
479 |
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Author |
Genthon Christophe, Town Michael S, Six Delphine, Favier Vincent, Argentini Stefania, Pellegrini Andrea, |
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Title |
Meteorological atmospheric boundary layer measurements and ECMWF analyses during summer at Dome C, Antarctica
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Type |
Journal Article |
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Year |
2010 |
Publication |
J. Geophys. Res. |
Abbreviated Journal |
J. Geophys. Res. |
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Volume |
115 |
Issue |
D5 |
Pages |
D05104 - |
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Keywords |
Antarctica, boundary layer, ECMWF, 3307 Atmospheric Processes: Boundary layer processes, 0798 Cryosphere: Modeling, 0394 Atmospheric Composition and Structure: Instruments and techniques, |
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Abstract |
Six levels of meteorological sensors have been deployed along a 45 m tower at the French-Italian Concordia station, Dome C, Antarctic. We present measurements of vertical profiles, the diurnal cycle, and interdiurnal variability of temperature, humidity, and wind speed and direction for 3 weeks during the southern summer of 2008. These measurements are compared to 6-hourly European Center for Medium-Range Forecasts (ECMWF) analyses and daily radiosoundings. The ECMWF analyses show a 3–4C warm bias relative to the tower observations. They reproduce the diurnal cycle of temperature with slightly weaker amplitude and weaker vertical gradients. The amplitude of the diurnal cycle of relative humidity is overestimated by ECMWF because the amplitude of the absolute humidity diurnal cycle is too small. The nighttime surface-based wind shear and Ekman spiral is also not reproduced in the ECMWF analyses. Radiosonde temperatures are biased low relative to the tower observations in the lowest 30 m but approach agreement at the top of the tower. Prior to bias correction for age-related contamination, radiosonde relative humidities are biased low relative to the tower observations in the lowest 10 m but agree with tower observations above this height. After correction for the age-related bias, the radiosonde relative humidity agrees with tower observations below 10 m but is biased high above this height. Tower temperature observations may also be biased by solar heating, despite radiation shielding and natural ventilation.
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Programme |
1013 |
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AGU |
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ISSN |
0148-0227 |
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yes |
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Serial |
480 |
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