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	Author	Van Petegem, F.,; Collins, T.,; Meuwis, M.-A.,; Gerday, C.,; Feller, G.,; Van Beeumen, J.,
	Title	Crystallization and preliminary X-ray analysis of a xylanase from the psychrophile Pseudoalteromonas haloplanktis			Type	Journal Article
	Year	2002	Publication	Acta crystallographica section d-biological crystallography	Abbreviated Journal	Acta Crystallogr. D Biol. Crystallogr.
	Volume	58	Issue	9	Pages	1494-1496
	Keywords	psychrophiles; cold-adapted enzyme; glycosyl hydrolases
	Abstract	The 46 kDa xylanase from the Antarctic microorganism Pseudoalteromonas haloplanktis is an enzyme that efficiently catalyzes reactions at low temperatures. Here, the crystallization of both the native protein and the SeMet-substituted enzyme and data collection from both crystals using synchrotron radiation are described. The native data showed that the crystals diffract to 1.3 A resolution and belong to space group P212121, with unit-cell parameters a = 50.87, b = 90.51, c = 97.23 A. SAD data collected at the peak of the selenium absorption edge proved to be sufficient to determine the heavy-atom configuration and to obtain electron density of good quality.
	Programme	193
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	Corporate Author				Thesis
	Publisher	International Union of Crystallography	Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0907-4449	ISBN		Medium
	Area		Expedition		Conference
	Notes	doi:10.1107/S0907444902011666			Approved	yes
	Call Number	IPEV @ Thierry.Lemaire @			Serial	5579
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	Author
	Title				Type	Journal Article
	Year	2011	Publication	Hormones and Behavior	Abbreviated Journal
	Volume	60	Issue	4	Pages	362-370
	Keywords	Prolactin, Breeding success, Glucocorticoid, Parental care, Long-term fasting,
	Abstract	Breeding individuals enter an emergency life-history stage when their body reserves reach a minimum threshold. Consequently, they redirect current activity toward survival, leading to egg abandonment in birds. Corticosterone (CORT) is known to promote this stage. How and to what extent CORT triggers egg abandonment when breeding is associated with prolonged fasting, however, requires further investigation.
	Programme	137
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0018-506X	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	3441
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	Author	Jaeger A, Connan M, Richard P, Cherel Y,
	Title	Use of stable isotopes to quantify seasonal changes of trophic niche and levels of population and individual specialisation in seabirds			Type	Journal Article
	Year	2010	Publication	Mar Ecol Prog Ser	Abbreviated Journal	Mar. Ecol. Prog. Ser.
	Volume	401	Issue		Pages	269 -277
	Keywords
	Abstract	Niche variation is a widespread phenomenon that has important implications for ecological interactions and conservation biology, but few studies have quantified the trophic niche width (TNW) and its within- and between-individual components. We used stable isotopes of body feathers to investigate (1) seasonal isotopic niche changes of 4 southern procellariiforms and, (2) the level to which individuals are specialised relative to their population within each season. (1) δ13C and δ15N values of chicks and adults indicated a well-defined trophic segregation within the seabird assemblage during both the breeding and poorly known moulting (inter-nesting) periods, and they underlined marked species-specific seasonal changes. One species (light-mantled sooty albatross) remained within the Southern Ocean both during breeding and body feather moult, while the 3 others migrated either to oceanic subtropical waters (wandering and sooty albatrosses) or high isotopic marine areas (e.g. productive neritic waters; white-chinned petrel) during the moulting period. (2) Isotopic variances and TNW were generally low, indicating that birds belong to isotopic specialist populations within a given period. Variances and TNW were larger for white-chinned petrel chicks and light-mantled sooty albatross adults, respectively, indicating isotopic generalist populations and revealing 2 new foraging behaviours. Individual white-chinned petrel chicks segregated by their feather isotopic signatures, thus indicating individual/pair specialisation of parent birds during the chick-rearing period. The light-mantled sooty albatross population included mostly isotopic generalist individuals during the moulting period, with individuals using different habitats and diets. The study highlights the utility of feather isotopic signature for determining TNW and points out the necessity to develop such new approaches to better depict niche variations at both population and individual levels.
	Programme	109
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0171-8630	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	345
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	Author	Wang Hao, Nagy John D, Gilg Olivier, Kuang Yang,
	Title	The roles of predator maturation delay and functional response in determining the periodicity of predatorprey cycles			Type	Journal Article
	Year	2009	Publication	Mathematical Biosciences	Abbreviated Journal
	Volume	221	Issue	1	Pages	1-10
	Keywords	Population cycle, Snowshoe harelynx, Lemmingstoat, Moosewolf, Predatorprey, Delay differential equation,
	Abstract	Population cycles in small mammals have attracted the attention of several generations of theoretical and experimental biologists and continue to generate controversy. Top-down and bottom-up trophic regulations are two recent competing hypotheses. The principal purpose of this paper is to explore the relative contributions of a variety of ecological factors to predatorprey population cycles. Here we suggest that for some species collared lemmings, snowshoe hares and moose in particular maturation delay of predators and the functional response of predation appear to be the primary determinants. Our study suggests that maturation delay alone almost completely determines the cycle period, whereas the functional response greatly affects its amplitude and even its existence. These results are obtained from sensitivity analysis of all parameters in a mathematical model of the lemmingstoat delayed system, which is an extension of Gilgs model. Our result may also explain why lemmings have a 4-year cycle whereas snowshoe hares have a 10-year cycle. Our parameterized model supports and extends Mays assertion that time delay impacts cycle period and amplitude. Furthermore, if maturation periods of predators are too short or too long, or the functional response resembles Holling Type I, then population cycles do not appear; however, suitable intermediate predator maturation periods and suitable functional responses can generate population cycles for both prey and predators. These results seem to explain why some populations are cyclic whereas others are not. Finally, we find parameterizations of our model that generate a 38-year population cycle consistent with the putative cycles of the moosewolf interactions on Isle Royale, Michigan.
	Programme	1036
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0025-5564	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	2840
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	Author	Barthelemy M, Lystrup M B, Menager H, Miller S, Lilensten J,
	Title	First detection of polarization in jovian auroral H+3 emissions			Type	Journal Article
	Year	2011	Publication	A&A	Abbreviated Journal
	Volume	530	Issue		Pages
	Keywords	polarization / molecular data / planets and satellites: aurorae / planets and satellites: individual: Jupiter
	Abstract
	Programme	1026
	Campaign
	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1895-6572	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	220
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	Author
	Title	On the nightglow polarisation for space weather exploration			Type	Journal
	Year	2020	Publication	Journal of Space Weather and Space Climate	Abbreviated Journal
	Volume	10	Issue		Pages	35
	Keywords	polarisation / aurora
	Abstract	We present here observations of the polarisation of four auroral lines in the auroral oval and in the polar cusp using a new ground polarimeter called Petit Cru. Our results confirm the already known polarisation of the red line, and show for the first time that the three other lines observed here (namely 557.7 nm, 391.4 nm and 427.8 nm) are polarised as well up to a few percent. We show that in several circumstances, this polarisation is linked to the local magnetic activity and to the state of the ionosphere through the electron density measured with EISCAT. However, we also show that the contribution of light pollution from nearby cities via scattering can not be ignored and can play an important role in polarisation measurements. This series of observations questions the geophysical origin of the polarisation. It also leaves open its relation to the magnetic field orientation and to the state of both the upper atmosphere and the troposphere.
	Programme	1026
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	2115-7251	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	7796
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	Author	Post Alexandra L, Beaman Robin J, O'Brien Philip E, Elaume Marc, Riddle Martin J,
	Title	Community structure and benthic habitats across the George V Shelf, East Antarctica: Trends through space and time			Type	Journal Article
	Year	2011	Publication	Deep Sea Research Part II: Topical Studies in Oceanography	Abbreviated Journal	Deep Sea Res. Part II Top. Stud. Oceanogr.
	Volume	58	Issue	1-2	Pages	105 -118
	Keywords	Polar waters, Adlie Land, Physical surrogates, Benthos, Benthic environment, Iceberg scouring,
	Abstract
	Programme	1124
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0967-0645	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	2519
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	Author	GENTHON C. , MAGAND O. , KRINNER G. , FILY M.
	Title	Do climate models underestimate snow accumulation on the Antarctic plateau? A re-evaluation of/from in situ observations in East Wilkes and Victoria Lands			Type	Journal Article
	Year	2009	Publication	Annals of glaciology	Abbreviated Journal
	Volume	50	Issue		Pages	61-65
	Keywords	polar regions ; Antarctica ; Diamond dust ; Victoria Land ; Wilkes Land ; ground truth ; Observation data ; algorithm performance ; Climate models ; accumulation ; Clear sky ; atmospheric precipitation ; mass balance ; Glacier balance ; ice sheets ; Polar region
	Abstract	It has been suggested that meteorological and climate models underestimate snow accumulation on the Antarctic plateau, because accumulation (or surface mass balance (SMB)) is dominated by clear-sky precipitation while this process is not properly taken into account in the models. Here, we show that differences between model and field SMB data are much reduced when the in situ SMB reports used to evaluate the models are filtered through quality-control criteria and less reliable reports are subsequently left out. We thus argue that, although not necessarily unsupported, model biases and their interpretations in terms of clear-sky vs synoptic precipitation on the Antarctic plateau may have been overstated in the past. To avoid such misleading issues, it is important that in situ SMB reports of insufficient or unassessed reliability are discarded, even at the cost of a strong reduction in spatial sampling and coverage.
	Programme	411;454
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0260-3055	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	5024
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	Author	David C, Haefele A, Keckhut P, Marchand M, Jumelet J, Leblanc T, Cenac C, Laqui C, Porteneuve J, Haeffelin M, Courcoux Y, Snels M, Viterbini M, Quatrevalet M,
	Title	Evaluation of stratospheric ozone, temperature, and aerosol profiles from the LOANA lidar in Antarctica			Type	Journal Article
	Year	2012	Publication	Polar Science	Abbreviated Journal	Polar Biol.
	Volume	6	Issue		Pages	209-225
	Keywords	Polar ozone, Polar stratospheric clouds, Lidar, Stratosphere,
	Abstract
	Programme	1124
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1873-9652	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	4663
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	Author	David C, Haefele A, Keckhut P, Marchand M, Jumelet J, Leblanc T, Cenac C, Laqui C, Porteneuve J, Haeffelin M, Courcoux Y, Snels M, Viterbini M, Quatrevalet M,
	Title	Evaluation of stratospheric ozone, temperature, and aerosol profiles from the LOANA lidar in Antarctica			Type	Journal Article
	Year	2012	Publication	Polar Science	Abbreviated Journal
	Volume	6	Issue	34	Pages	209-225
	Keywords	Polar ozone, Polar stratospheric clouds, Lidar, Stratosphere,
	Abstract
	Programme	209
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	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	1873-9652	ISBN		Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	4164
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