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Author |
McCoy K.D. |
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Title |
Sympatric speciation in parasites: what is sympatric? |
Type |
Journal Article |
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Year |
2003 |
Publication |
Trends in parasitology |
Abbreviated Journal  |
Trends Parasitol. |
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Volume |
19 |
Issue |
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Pages |
400-404 |
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Keywords |
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Abstract |
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Programme |
333 |
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Edition |
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ISSN |
1471-4922 |
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Approved |
yes |
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Call Number |
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Serial |
2565 |
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Author |
Staszewski V. & Boulinier T. |
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Title |
Vaccination: a way to address questions in behavioral and population ecology? |
Type |
Journal Article |
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Year |
2004 |
Publication |
Trends in parasitology |
Abbreviated Journal |
Trends Parasitol. |
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Volume |
20 |
Issue |
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Pages |
17-22 |
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Abstract |
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Programme |
333 |
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ISSN |
1471-4922 |
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Approved |
yes |
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Call Number |
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Serial |
2566 |
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Author |
McCoy K.D. |
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Title |
Response to Le Gac and Giraud: Questioning is a start! |
Type |
Journal Article |
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Year |
2004 |
Publication |
Trends in parasitology |
Abbreviated Journal |
Trends Parasitol. |
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Volume |
20 |
Issue |
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Pages |
208-209 |
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Abstract |
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Programme |
333 |
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Series Editor |
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Series Issue |
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Edition |
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ISSN |
1471-4922 |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
3042 |
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Author |
Sinclair B.J., Vernon P., Klok C.J. & Chown S.L. |
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Title |
Insects at low temperature: an ecological perspective. |
Type |
Journal Article |
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Year |
2003 |
Publication |
Trends in ecology & evolution |
Abbreviated Journal |
Trends Ecol. Evol. (Amst.) |
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Volume |
18 |
Issue |
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Pages |
257-262 |
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Programme |
136 |
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Series Editor |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0169-5347 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
2152 |
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Author |
Poulin E., Palma A.T. & Féral J.P. |
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Title |
Evolutionary versus ecological succes of developmental modes in coastal Antarctic benthic invertebrates. |
Type |
Journal Article |
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Year |
2002 |
Publication |
Trends in ecology & evolution |
Abbreviated Journal |
Trends Ecol. Evol. (Amst.) |
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Volume |
17 |
Issue |
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Pages |
218-222 |
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Abstract |
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Programme |
195 |
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Series Volume |
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Edition |
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ISSN |
0169-5347 |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
3159 |
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| Permanent link to this record |
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Author |
Boulinier, T. & Staszewski, V. |
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Title |
Maternal transfer of antibodies: raising immuno-ecology issues. |
Type |
Journal Article |
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Year |
2008 |
Publication |
Trends in ecology & evolution |
Abbreviated Journal |
Trends Ecol. Evol. (Amst.) |
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Volume |
23 |
Issue |
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Pages |
282-288 |
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Keywords |
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Abstract |
Article de revue faisant le point sur un thème important du programme (l'écologie évolutive du transfert maternal d'anticorps). Des travaux directement liés au programme n°333 y sont cités. |
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Programme |
333 |
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Series Editor |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0169-5347 |
ISBN |
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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 |
5281 |
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| Permanent link to this record |
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Author |
E. Le Meur, M. Sacchettini, S. Garambois, E. Berthier, A. S. Drouet, G. Durand, D. Young, J. S. Greenbaum, D. D. Blankenship, J. W. Holt, E. Rignot, J. Mouginot, Y. Gim, D. Kirchner, B. de Fleurian, O. Gagliardini and F. Gillet-Chaulet
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Title |
Two independent methods for mapping the grounding line of an outlet glacier – example from the Astrolabe Glacier, Terre Adélie, Antarctica
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Type |
Journal Article |
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Year |
2013 |
Publication |
The Cryosphere Discuss. |
Abbreviated Journal |
The Cryosphere Discuss. |
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Volume |
7 |
Issue |
4 |
Pages |
3969-4014 |
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Keywords |
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Abstract |
Abstract
The grounding line is a key element acting on the dynamics of coastal outlet glaciers.
Knowing its position accurately is fundamental for both modelling the glacier dynamics
and establishing a benchmark to which one can later refer in case of change. Here we
� �map the grounding line of the Astrolabe Glacier in East Antarctica (66 41 S; 140 05 E),
using hydrostatic and tidal methods. The first method is based on new surface and
ice thickness data from which the line of buoyant flotation is found. We compare this
hydrostatic map with kinematic GPS measurements of the tidal response of the ice
surface. By detecting the transitions where the ice starts to move vertically in response
to the tidal forcing we find control points for the grounding line position along GPS
profiles. With the help of a 2-dimensional elastic plate model, rigid elastic deviations are
computed and applied to these control points. Once the extent of the grounding zone,
the kinematic approach is consistent with the hydrostatic map. These two approaches
lead us to propose a grounding line for the Astrolabe Glacier that significantly deviates
from those obtained so far from satellite imagery.
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Programme |
1053 |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Edition |
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ISSN |
1994-0440 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
4397 |
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Author |
Picard G, Royer A, Arnaud L, Fily M, |
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Title |
Influence of meter-scale wind-formed features on the variability of the microwave brightness temperature around Dome C in Antarctica
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Type |
Journal Article |
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Year |
2013 |
Publication |
The Cryosphere Discuss. |
Abbreviated Journal |
The Cryosphere Discuss. |
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Volume |
7 |
Issue |
4 |
Pages |
3675-3716 |
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Keywords |
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Abstract |
Space-borne passive microwave radiometers are widely used to retrieve information in snowy regions by exploiting the high sensitivity of microwave emission to snow properties. For the Antarctic Plateau, many studies presenting retrieval algorithms or numerical simulations have assumed, explicitly or not, that the subpixel-scale heterogeneity is negligible and that the retrieved properties were representative of whole pixels. In this paper, we investigate the spatial variations of brightness temperature over a range of a few kilometers in the Dome C area. Using ground-based radiometers towed by a vehicle allowing measurements with meter resolution, we collected brightness temperature transects at 11, 19 and 37 GHz at horizontal and vertical polarizations. The most remarkable observation was a series of regular undulations of the signal with a significant amplitude of up to 10 K at 37 GHz and a quasi-period of 30–50 m. In contrast, the variability at longer length scales seemed to be weak in the investigated area and the mean brightness temperature was close to AMSR-E and WindSat satellite observations for all the frequencies and polarisations. To establish a link between the snow characteristics and undulation-scale variations of microwave emission, we collected detailed snow grain size and density profiles to run the DMRT-ML microwave emission model at two points where opposite extrema of brightness temperature were observed. The numerical simulations revealed that the difference in density of the upper first meter of the snowpack explained most of the brightness temperature variations. In addition, we found in the field that these variations of density were linked to the hardness of the snowpack. Areas of hard snow – probably formed by the wind – were clearly visible and covered as much as 39% of the investigated area. Their brightness temperature was higher than in normal areas. This result implied that the microwave emission measured by satellites over Dome C is more complex than expected and very likely depends on the areal proportion of the two different types of areas having distinct snow properties. |
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Programme |
902 |
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ISSN |
1994-0440 |
ISBN |
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Notes |
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Approved |
yes |
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Call Number |
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Serial |
4457 |
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Author |
Verfaillie D, Fily M, Le Meur E, Magand O, Jourdain B, Arnaud L, Favier V, |
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Title |
Snow accumulation variability in Adelie Land (East Antarctica) derived from radar and firn core data. A 600 km transect from Dome C
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Type |
Journal Article |
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Year |
2012 |
Publication |
The Cryosphere Discuss. |
Abbreviated Journal |
The Cryosphere Discuss. |
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Volume |
6 |
Issue |
4 |
Pages |
2855-2889 |
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Abstract |
The mass balance of ice sheets is an intensively studied topic in the context of global change and sealevel rise. However – particularly in Antarctica – obtaining mass balance estimates remains difï¬cult due to various logistical problems. In the framework of the TASTE-IDEA (Trans-Antarctic Scientiï¬c Traverses Expeditions – Ice Divide of East Antarctica) program, an International Polar Year project, continuous ground penetrating radar (GPR) measurements were carried out during a traverse in Adelie Land (East Antarctica) during the 2008–2009 austral summer between the Italian–French Dome C (DC) polar plateau site and French Dumont D’Urville (DdU) coastal station. The aim of this study was to process and interpret GPR data in terms of snow accumulation, to analyse its spatial and temporal variability and compare it with historical data and modelling. The focus was on the last 300 yr, from the preindustrial period to recent times. Beta-radioactivity counting and gamma spectrometry were applied to cores at the LGGE laboratory, providing a depth–age calibration for radar measurements. Over the 600 km of usable GPR data, depth and snow accumulation were determined with the help of three distinct layers visible on the radargrams (≈ 1730, 1799 and
1941 AD). Preliminary results reveal a gradual increase in accumulation towards the coast (from ≈ 3 cm w.e. a-1 at Dome C to ≈ 17 cm w.e. a-1 at the end of the transect) and previously undocumented undulating structures between 300 and 600 km from DC. Results agree fairly well with data from
previous studies and modelling. Drawing ï¬nal conclusions on temporal variations is difï¬cult because of the margin of error introduced by density estimation. This study should have various applications, including model validation. |
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Programme |
411 |
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ISSN |
1994-0440 |
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yes |
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Call Number |
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Serial |
4589 |
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Author |
Magand, O.; Picard, G.; Brucker, L.; Fily, M.; Genthon, C. |
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Title |
Snow melting bias in microwave mapping of Antarctic snow accumulation |
Type |
Journal Article |
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Year |
2008 |
Publication |
The Cryosphere Discuss. |
Abbreviated Journal |
TCD |
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Volume |
2 |
Issue |
2 |
Pages |
255-273 |
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Abstract |
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Programme |
454 |
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Publisher |
Copernicus Publications |
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Edition |
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ISSN |
1994-0432 |
ISBN |
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yes |
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Call Number |
IPEV @ Thierry.Lemaire @ |
Serial |
5505 |
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| Permanent link to this record |
