| Records |
| Author |
|
| Title |
Acoustic distribution of discriminated micronektonic organisms from a bi-frequency processing: The case study of eastern Kerguelen oceanic waters |
Type |
Journal |
| Year |
2017 |
Publication |
Progress in Oceanography |
Abbreviated Journal |
|
| Volume |
156 |
Issue |
|
Pages |
276-289 |
| Keywords |
Acoustics Euphausiid Kerguelen Myctophid Southern Ocean |
| Abstract |
|
| Programme |
109 |
| Campaign |
|
| Address |
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| Corporate Author |
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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 |
0079-6611 |
ISBN  |
0079-6611 |
Medium |
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| Area |
|
Expedition |
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Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
7148 |
| Permanent link to this record |
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| |
| Author |
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| Title |
Under the sea ice: Exploring the relationship between sea ice and the foraging behaviour of southern elephant seals in East Antarctica |
Type |
Journal |
| Year |
2017 |
Publication |
Progress in Oceanography |
Abbreviated Journal |
|
| Volume |
156 |
Issue |
|
Pages |
17-40 |
| Keywords |
|
| Abstract |
|
| Programme |
109 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
0079-6611 |
ISBN |
0079-6611 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
7167 |
| Permanent link to this record |
| |
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| |
| Author |
David Renault, Mathieu Laparie, Shannon J. McCauley, Dries Bonte |
| Title |
Environmental Adaptations, Ecological Filtering, and Dispersal Central to Insect Invasions |
Type |
Journal |
| Year |
2018 |
Publication |
Annual review of entomology |
Abbreviated Journal |
|
| Volume |
63 |
Issue |
1 |
Pages |
345-368 |
| Keywords |
|
| Abstract |
Insect invasions, the establishment and spread of nonnative insects in new regions, can have extensive economic and environmental consequences. Increased global connectivity accelerates rates of introductions, while climate change may decrease the barriers to invader species? spread. We follow an individual-level insect- and arachnid-centered perspective to assess how the process of invasion is influenced by phenotypic heterogeneity associated with dispersal and stress resistance, and their coupling, across the multiple steps of the invasion process. We also provide an overview and synthesis on the importance of environmental filters during the entire invasion process for the facilitation or inhibition of invasive insect population spread. Finally, we highlight important research gaps and the relevance and applicability of ongoing natural range expansions in the context of climate change to gain essential mechanistic insights into insect invasions. |
| Programme |
136 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
0066-4170 |
ISBN |
0066-4170 |
Medium |
|
| Area |
|
Expedition |
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Conference |
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| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
6609 |
| Permanent link to this record |
| |
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| |
| Author |
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| Title |
A reassessment of the carnivorous status of salmonids: Hepatic glucokinase is expressed in wild fish in Kerguelen Islands |
Type |
Journal |
| Year |
2017 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
|
| Volume |
612 |
Issue |
|
Pages |
276-285 |
| Keywords |
Carbohydrates Environment Gluconeogenesis Glucose metabolism Polar |
| Abstract |
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| Programme |
1041 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
|
Edition |
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| ISSN |
0048-9697 |
ISBN |
0048-9697 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
6887 |
| Permanent link to this record |
| |
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| |
| Author |
|
| Title |
Early stage litter decomposition across biomes |
Type |
Journal |
| Year |
2018 |
Publication |
Science of the total environment |
Abbreviated Journal |
|
| Volume |
628-629 |
Issue |
|
Pages |
1369-1394 |
| Keywords |
Carbon turnover Green tea Rooibos tea Tea bag TeaComposition initiative |
| Abstract |
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| Programme |
136 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
|
Edition |
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| ISSN |
0048-9697 |
ISBN |
0048-9697 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
7018 |
| Permanent link to this record |
| |
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| |
| Author |
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| Title |
Demographic, endocrine and behavioral responses to mirex in the South polar skua |
Type |
Journal |
| Year |
2018 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
|
| Volume |
631-632 |
Issue |
|
Pages |
317-325 |
| Keywords |
|
| Abstract |
Population consequences of chronic exposure to multiple pollutants at low environmental doses remain speculative, because of the lack of appropriate long-term monitoring surveys. This study integrates proximate and ultimate aspects of persistent organic pollutants (POP) burden in free-living vertebrates, by coupling hormonal and behavioral endpoints, life-history traits, and population dynamics. Blood samples (N=70) were collected in South polar skuas during two breeding periods, in 2003 and 2005, and individuals were annually monitored until 2011. Multi-state mark recapture models were used to test the effects of POP levels on demographic traits. Survival rate and long-term breeding probability were not related to individual POP levels, whereas long-term breeding success significantly decreased with increasing blood levels of mirex, an organochlorine insecticide. At the proximate level, corticosterone (stress hormone) and prolactin (parental care hormone) levels were not linked to individual POP burden. Nest defense in 2005 was significantly less intensive in chick-rearing skuas bearing higher mirex levels, suggesting reproductive behavioral impairment. Matrix population models were then built to project the rate of population decline according to increasing mirex burden. Although mirex levels were 2.8 times higher in 2003 than in 2005, the population-level effect of mirex was only detected in 2005, the year of higher corticosterone levels. The combination of endocrine traits with demographic analysis thereby enables to provide new support of synergistic interactions between pollutants and stress levels on long-term breeding outputs and population dynamics. |
| Programme |
109 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
0048-9697 |
ISBN |
0048-9697 |
Medium |
|
| Area |
|
Expedition |
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Conference |
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| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
7119 |
| Permanent link to this record |
| |
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| |
| Author |
F. Thibon, L. Weppe, N. Vigier, C. Churlaud, T. Lacoue-Labarthe, M. Metian, Y. Cherel, P. Bustamante |
| Title |
Large-scale survey of lithium concentrations in marine organisms |
Type |
Journal |
| Year |
2021 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
|
| Volume |
751 |
Issue |
|
Pages |
141453 |
| Keywords |
Bio-reduction Bioaccumulation Biogeography Ecotoxicology Multiple correspondence analyses Trophic webs |
| Abstract |
|
| Programme |
109 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
|
ISBN |
0048-9697 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
7944 |
| Permanent link to this record |
| |
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| |
| Author |
R. Traversi, S. Becagli, M. Brogioni, L. Caiazzo, V. Ciardini, F. Giardi, M. Legrand, G. Macelloni, B. Petkov, S. Preunkert, C. Scarchilli, M. Severi, V. Vitale, R. Udisti |
| Title |
Multi-year record of atmospheric and snow surface nitrate in the central Antarctic plateau |
Type |
Journal |
| Year |
2017 |
Publication |
Chemosphere |
Abbreviated Journal |
|
| Volume |
172 |
Issue |
|
Pages |
341-354 |
| Keywords |
Aerosol Antarctica Dome C Nitrate Stratosphere-troposphere exchange Surface snow |
| Abstract |
Continuous all year-round samplings of atmospheric aerosol and surface snow at high (daily to 4-day) resolution were carried out at Dome C since 2004-05 to 2013 and nitrate records are here presented. Basing on a larger statistical data set than previous studies, results confirm that nitrate seasonal pattern is characterized by maxima during austral summer for both aerosol and surface snow, occurring in-phase with solar UV irradiance. This temporal pattern is likely due to a combination of nitrate sources and post-depositional processes whose intensity usually enhances during the summer. Moreover, it should be noted that a case study of the synoptic conditions, which took place during a major nitrate event, showed the occurrence of a stratosphere-troposphere exchange. The sampling of both matrices at the same time with high resolution allowed the detection of a an about one-month long recurring lag of summer maxima in snow with respect to aerosol. This result can be explained by deposition and post-deposition processes occurring at the atmosphere-snow interface, such as a net uptake of gaseous nitric acid and a replenishment of the uppermost surface layers driven by a larger temperature gradient in summer. This hypothesis was preliminarily tested by a comparison with surface layers temperature data in the 2012-13 period. The analysis of the relationship between the nitrate concentration in the gas phase and total nitrate obtained at Dome C (2012-13) showed the major role of gaseous HNO3 to the total nitrate budget suggesting the need to further investigate the gas-to-particle conversion processes. |
| Programme |
414 |
| Campaign |
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| Address |
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| Corporate Author |
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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 |
|
Series Issue |
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Edition |
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| ISSN |
0045-6535 |
ISBN |
0045-6535 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
6671 |
| Permanent link to this record |
| |
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| |
| Author |
|
| Title |
Feedback mechanisms between snow and atmospheric mercury: Results and observations from field campaigns on the Antarctic plateau |
Type |
Journal |
| Year |
2018 |
Publication |
Chemosphere |
Abbreviated Journal |
|
| Volume |
197 |
Issue |
|
Pages |
306-317 |
| Keywords |
Antarctica Dome C Halogens Mercury Precipitation Snow |
| Abstract |
The Antarctic Plateau snowpack is an important environment for the mercury geochemical cycle. We have extensively characterized and compared the changes in surface snow and atmospheric mercury concentrations that occur at Dome C. Three summer sampling campaigns were conducted between 2013 and 2016. The three campaigns had different meteorological conditions that significantly affected mercury deposition processes and its abundance in surface snow. In the absence of snow deposition events, the surface mercury concentration remained stable with narrow oscillations, while an increase in precipitation results in a higher mercury variability. The Hg concentrations detected confirm that snowfall can act as a mercury atmospheric scavenger. A high temporal resolution sampling experiment showed that surface concentration changes are connected with the diurnal solar radiation cycle. Mercury in surface snow is highly dynamic and it could decrease by up to 90% within 4/6?h. A negative relationship between surface snow mercury and atmospheric concentrations has been detected suggesting a mutual dynamic exchange between these two environments. Mercury concentrations were also compared with the Br concentrations in surface and deeper snow, results suggest that Br could have an active role in Hg deposition, particularly when air masses are from coastal areas. This research presents new information on the presence of Hg in surface and deeper snow layers, improving our understanding of atmospheric Hg deposition to the snow surface and the possible role of re-emission on the atmospheric Hg concentration. |
| Programme |
414,1028 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
Bachelor's thesis |
| Publisher |
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Place of Publication |
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Editor |
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| Language |
|
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 |
|
Edition |
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| ISSN |
0045-6535 |
ISBN |
0045-6535 |
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
7229 |
| Permanent link to this record |
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| |
| Author |
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| Title |
Interaction webs in arctic ecosystems: Determinants of arctic change? |
Type |
Journal |
| Year |
2017 |
Publication |
Ambio |
Abbreviated Journal |
|
| Volume |
46 |
Issue |
1 |
Pages |
12-25 |
| Keywords |
|
| Abstract |
|
| Programme |
1036 |
| Campaign |
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| Address |
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| Corporate Author |
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Thesis |
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| Publisher |
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Place of Publication |
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Editor |
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| Language |
|
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 |
|
Series Issue |
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Edition |
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| ISSN |
0044-7447, 1654-7209 |
ISBN |
0044-7447, 1654-7209 |
Medium |
|
| Area |
|
Expedition |
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Conference |
|
| Notes |
|
Approved |
yes |
| Call Number |
|
Serial |
6961 |
| Permanent link to this record |
