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Author |
Renault D., Lalouette L. |
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Title |
Short Note: Critical thermal minima of three sub-Antarctic insects from the French southern Indian Ocean islands
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Type |
Journal Article |
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Year |
2012 |
Publication |
Antarctic Science |
Abbreviated Journal |
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Volume |
24 |
Issue |
01 |
Pages |
43-44 |
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Keywords |
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Abstract |
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Programme |
136 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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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 |
0954-1020 |
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 |
4112 |
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Author |
Fund F, Perosanz F, Testut L, Loyer S, |
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Title |
An Integer Precise Point Positioning technique for sea surface observations using a GPS buoy
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Type |
Journal Article |
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Year |
2013 |
Publication |
Advances in Space Research |
Abbreviated Journal |
Adv Space Res |
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Volume |
51 |
Issue |
8 |
Pages |
1311-1322 |
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Keywords |
GPS, Ambiguity fixing, Tropospheric delays, Buoy, Radar gauge, |
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Abstract |
GPS data dedicated to sea surface observation are usually processed using differential techniques. Unfortunately, the precision of resulting kinematic positions is baseline-length dependent. So, high precision sea surface observations using differential GPS techniques are limited to coasts, lakes, and rivers. Recent improvements in GPS satellite products (orbits, clocks, and phase biases) make phase ambiguity fixing at the zero difference level achievable and opens up the observation of the sea surface without geographical constraints. This paper recalls the concept of the Integer Precise Point Positioning technique and discusses the precision of GPS buoy positioning. A sequential version of the GINS software has been implemented to achieve single epoch GPS positioning. We used 1 Hz data from a two week GPS campaign conducted in the Kerguelen Islands. A GPS buoy has been moored close to a radar gauge and 90 m away from a permanent GPS station. This infrastructure offers the opportunity to compare both kinematic Integer Precise Point Positioning and classical differential GPS positioning techniques to in situ radar gauge data. We found that Precise Point Positioning results are not significantly biased with respect to radar gauge data and that horizontal time series are consistent with differential processing at the sub-centimetre precision level. Nevertheless, standard deviations of height time series with respect to radar gauge data are typically [45] cm. The dominant driver for noise at this level is attributed to errors in tropospheric estimates which propagate into position solutions. |
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Programme |
688 |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Series Volume |
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Edition |
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ISSN |
0273-1177 |
ISBN |
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Approved |
yes |
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Call Number |
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Serial |
4159 |
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Author |
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Title |
Coping with social stress: heart rate responses to agonistic interactions in king penguins
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Type |
Journal Article |
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Year |
2012 |
Publication |
Behavioral Ecology |
Abbreviated Journal |
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Volume |
23 |
Issue |
6 |
Pages |
1178 -1185 |
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Keywords |
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Abstract |
In colonial breeders, agonistic interactions between conspecifics are frequent and may have significant physiological implications. Physiological responses (e.g., increased heart rate) to such social stressors may be determined by the potential costs of agonistic interactions, such as personal injury or risk of breeding failure, and by the motivation of the individuals concerned. The latter may vary according to individuals reproductive status or willingness to engage in agonistic interactions. In this study, we investigated heart rate responses to aggressive interactions in a breeding colony of king penguins Aptenodytes patagonicus. From heart rate (HR) and behavior recorded in 20 adults at various stages of the breeding season, we investigated how king penguins reacted to aggressive neighbors. A total of 589 agonistic interactions, 223 in which birds were actors and 366 in which birds remained bystanders (i.e., witnesses that were not involved in interactions), were characterized. We found that HR increased during agonistic interactions, both in actors and bystanders. The intensity (threat displays or physical attacks), duration, and rate of aggressive events (number of threats/blows per unit time) of an interaction significantly influenced the HR response in actors. For bystanders, however, only the duration of interactions seemed to matter. Our results also suggest a role for individual motivation, as initiators of agonistic interactions displayed higher HR increases than responders, and as increases were not constant throughout the reproductive season. We conclude that individual risk assessment and motivation modulate physiological responses to social stressors in group-living animals.
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Programme |
119 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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Place of Publication |
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Original Title |
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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 |
1045-2249 |
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 |
4174 |
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Author |
Grimwood Bryan S R, Doubleday Nancy C, Ljubicic Gita J, Donaldson Shawn G, Blangy Sylvie, |
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Title |
Engaged acclimatization: Towards responsible community-based participatory research in Nunavut
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Type |
Journal Article |
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Year |
2012 |
Publication |
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Abbreviated Journal |
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Volume |
56 |
Issue |
2 |
Pages |
211-230 |
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Keywords |
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Abstract |
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Programme |
1193 |
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Address |
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Corporate Author |
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Thesis |
Bachelor's thesis |
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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 |
1541-0064 |
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 |
4221 |
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Author |
De Broyer Claude, Danis Bruno, |
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Title |
How many species in the Southern Ocean? Towards a dynamic inventory of the Antarctic marine species
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Type |
Journal Article |
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Year |
2011 |
Publication |
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY |
Abbreviated Journal |
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Volume |
58 |
Issue |
1-2 |
Pages |
5-17 |
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Keywords |
Antarctic, Barcoding, Biodiversity, Cybertaxonomy, Information system, Southern Ocean, Species inventory, Taxonomy, |
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Abstract |
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Programme |
1044 |
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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 |
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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 |
0967-0645 |
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 |
4225 |
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Author |
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Title |
Ectosymbiosis associated with cidaroids (Echinodermata: Echinoidea) promotes benthic colonization of the seafloor in the Larsen Embayments, Western Antarctica
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Type |
Journal Article |
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Year |
2011 |
Publication |
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY |
Abbreviated Journal |
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Volume |
58 |
Issue |
1-2 |
Pages |
84-90 |
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Keywords |
Antarctica, Cidaroid echinoids, Diversity, Larsen embayments, Symbiosis, |
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Abstract |
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Programme |
1044 |
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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 |
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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 |
0967-0645 |
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 |
4226 |
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| Permanent link to this record |
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Author |
Povinec P P, Breier R, Coppola L, Groening M, Jeandel C, Jull A J T, Kieser W E, Lee S -H, Liong Wee Kwong L, Morgenstern U, Park Y -H, Z Top, |
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Title |
Tracing of water masses using a multi isotope approach in the southern Indian Ocean
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Type |
Journal Article |
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Year |
2011 |
Publication |
Earth and Planetary Science Letters |
Abbreviated Journal |
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Volume |
302 |
Issue |
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Pages |
14-26 |
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Keywords |
ANTARES IV, carbon-14, Crozet Basin, deuterium, Indian Ocean, iodine-129, oxygen-18, seawater, tritium, |
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Abstract |
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Programme |
1061 |
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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 |
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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 |
0012-821X |
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 |
4232 |
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Author |
Blangy Sylvie, Donohoe Holly M, Mitchell Scott, |
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Title |
Developing a geocollaboratory for Indigenous tourism research
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Type |
Journal Article |
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Year |
2012 |
Publication |
Current Issues in Tourism |
Abbreviated Journal |
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Volume |
15 |
Issue |
7 |
Pages |
693-706 |
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Keywords |
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Abstract |
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Programme |
1193 |
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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 |
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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 |
1368-3500 |
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 |
4234 |
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Author |
Pierrat Benjamin, Saucde Thomas, Laffont Rmi, Ridder Chantal De, Festeau Alain, David Bruno, |
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Title |
Large-scale distribution analysis of Antarctic echinoids using ecological niche modelling
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Type |
Journal Article |
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Year |
2012 |
Publication |
MARINE ECOLOGY-PROGRESS SERIES |
Abbreviated Journal |
Mar. Ecol. Prog. Ser. |
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Volume |
463 |
Issue |
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Pages |
215-230 |
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Keywords |
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Abstract |
ABSTRACT: Understanding the factors that determine the distribution of taxa at various spatial scales is a crucial challenge in the context of global climate change. This holds particularly true for polar marine biota that are composed of both highly adapted and vulnerable faunas. We analysed the distribution of 2 Antarctic echinoid species, Sterechinus antarcticus and S. neumayeri, at the scale of the entire Southern Ocean using 2 niche modelling procedures. The performance of distribution models was tested with regard to the known ecology of the species. The respective contributions of environmental parameters are discussed along with the putative roles played by biotic interactions and biogeographic processes. Depth was the parameter that contributed most to both distribution models, whereas sea ice coverage and sea surface temperature had significant contributions for S. neumayeri only. Suitability maps of the 2 species were mostly similar, with a few notable differences. The Campbell Plateau and Tasmania were predicted as suitable areas for S. antarcticus only, while S. neumayeri was restricted to the south of the Antarctic Polar Front. However, numerous sampling data attest that S. antarcticus is absent from the Campbell Plateau and from Tasmania. Different hypotheses are formulated to explain the mismatch between observed and modelled distribution data. They stress the putative roles played by both oceanographic barriers to dispersal (Antarctic Polar Front), biotic factors (species exclusion patterns) and biogeographic processes (ongoing dispersal). |
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Programme |
1044;1124 |
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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 |
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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 |
0171-8630 |
ISBN |
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Medium |
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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 |
4236 |
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| Permanent link to this record |
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Author |
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Title |
Environmental control on the structure of echinoid assemblages in the Bellingshausen Sea (Antarctica)
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Type |
Journal Article |
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Year |
2012 |
Publication |
POLAR BIOLOGY |
Abbreviated Journal |
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Volume |
35 |
Issue |
9 |
Pages |
1343-1357 |
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Keywords |
Abiotic factors, Antarctic, Bellingshausen Sea, Benthos, Diversity, Echinodermata, Echinoidea, Ecology, Microbiology, Oceanography, Plant Sciences, Zoology, |
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Abstract |
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Programme |
1044 |
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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 |
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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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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 |
4237 |
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