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Author Lesur Vincent, Rother Martin, Wardinski Ingo, Schachtschneider Reyko, Hamoudi Mohamed, Chambodut Aude,
Title Parent magnetic field models for the IGRF-12GFZ-candidates Type Journal Article
Year 2015 Publication Earth, Planets and Space Abbreviated Journal
Volume 67 Issue 1 Pages 87-87
Keywords
Abstract
Programme 139
Campaign
Address
Corporate Author Thesis
Publisher (down) Springer Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1343-8832 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 6075
Permanent link to this record
 
 
Author Renault David, Chevrier Muriel, Laparie Mathieu, Vernon Philippe, Lebouvier Marc,
Title Characterization of the habitats colonized by the alien ground beetle Merizodus soledadinus at the Kerguelen islands Type Journal Article
Year 2015 Publication Abbreviated Journal
Volume 70 Issue 12 Pages 28-32
Keywords
Abstract In the present work, we conducted a field-based study to identify the type of habitats colonized by the alien ground beetle Merizodus soledadinus at the Kerguelen Islands, southern Indian Ocean, and to delineate the spatial dynamics of this species. We used periodic trapping at several coastal habitats on Ile Haute (one of the islands from the Kerguelen archipelago), together with opportunistic active searches at other locations on this subantarctic archipelago. A total of 1081 sites were visited. Our data showed that adult M. soledadinus were mostly found near the tide drift line (372/540 obs., i.e., 69 %) in various habitats, including (1) in the foreshore under timber, (2) beneath stones in coastal areas near penguin colonies, and (3) in herbfields and meadows. It was previously assumed that the habitat distribution of this species was restricted to the herbfields of coastal areas, with our inland observations showing that M. soledadinus (265/541 obs., i.e. 49 %) occupied areas (1) in the vicinity of cushion-carpets, (2) along rivers and ponds beneath stones or mammal carrion, and (3) in fell-fields that contained plant patches (Azorella selago, Colobanthus kerguelensis, or Lycopodium magellanicum and/or bryophytes). Our study is expected to facilitate the implementation of biosecurity measures to mitigate accidental introduction of M. soledadinus to pristine areas that it has not yet colonized.
Programme 136
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Corporate Author Thesis
Publisher (down) Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0249-7395 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 6139
Permanent link to this record
 
 
Author
Title Liparids from the Eastern sector of Southern Ocean and first information from molecular studies Type Journal Article
Year 2010 Publication Cybium Abbreviated Journal Cybium
Volume 34 Issue 4 Pages 319 -343
Keywords Barcoding, Distribution, Liparidae, Southern Ocean,
Abstract
Programme 1124
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Address
Corporate Author Thesis
Publisher (down) Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0399-0974 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 2580
Permanent link to this record
 
 
Author
Title Interactions between seabirds and fisheries in the French EEZs: implications for conservation and management Type Conference - International - Article with Reading Comitee
Year 2011 Publication Abbreviated Journal
Volume Issue Pages 291-292
Keywords
Abstract
Programme 394
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Corporate Author Thesis
Publisher (down) Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 495
Permanent link to this record
 
 
Author
Title Close genetic relationships in vast territories: autosomal and X chromosome Alu diversity in Yakuts from Siberia Type Journal Article
Year 2013 Publication Anthropologischer Anzeiger Abbreviated Journal
Volume 70 Issue 3 Pages 309-317
Keywords
Abstract
Programme 1038
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Address
Corporate Author Thesis
Publisher (down) Schweizerbart Science Publishers Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0003-5548 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 4692
Permanent link to this record
 
 
Author Convey Peter, Lebouvier Marc,
Title Environmental change and human impacts on terrestrial ecosystems of the sub-Antarctic islands between their discovery and the mid-twentieth century Type Journal Article
Year 2009 Publication PAPERS AND PROCEEDINGS OF THE ROYAL SOCIETY OF TASMANIA Abbreviated Journal
Volume 143 Issue Pages 33-44
Keywords Ecology and Environment,
Abstract Sub-Antarctic islands share many similarities in their history of human interaction and impacts before the mid-twentieth century. Large impacts on land were associated with marine exploitation industries of sealing and whaling. Their onshore activities involved considerable construction and pollution in many accessible landing bays, inevitably destroying large areas of coastal terrestrial habitat. Considerable transfer of nutrients to terrestrial environments will have been associated with scavengers utilising large carrion supplies. Attempted establishment of agricultural industries, particularly the introduction of grazing mammals, took place on several islands and, although rarely proving economically viable, often resulted in the long-term creation of feral populations. These were accompanied by introductions of other alien vertebrates, plants and invertebrates to most sub-Antarctic islands, although precise records of introduction events, or subsequent biological studies in this period, largely do not exist. Thus, exploitation industries in this region inevitably led to considerable alterations and impacts to terrestrial ecosystems almost from the outset of human contact with the islands. In the absence of baseline ecological and biodiversity studies, the true magnitude of many of these impacts is difficult to assess, although their legacy continues to the present day. Indeed, the almost complete removal of fur seals may have allowed coastal vegetation to become more extensive and lush than hitherto, paradoxically now regarded as “typical” and threatened by recovery of seal populations.
Programme 136
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Corporate Author Thesis
Publisher (down) Royal Society of Tasmania Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0080-4703 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 1818
Permanent link to this record
 
 
Author
Title When do older birds better resist stress? A study of the corticosterone stress response in snow petrels Type Journal
Year 2020 Publication Biology letters Abbreviated Journal
Volume 16 Issue 1 Pages 20190733
Keywords
Abstract Life-history theory predicts that, to optimize their fitness, individuals should increase their reproductive effort as their residual reproductive value decreases. Accordingly, several studies have shown that individuals downregulate their glucocorticoid stress response (a proxy of reproductive investment in vertebrates) as they age, and as the subsequent reproductive value decreases. However, and surprisingly, results appear inconsistent, suggesting that the environmental context or the individual state may affect the relationship between age and reproductive effort. Here, we tested for the first time this hypothesis, and more specifically, whether this attenuation of the corticosterone stress response with advancing age depends on the energetic status of individuals. We compared the influence of age on the corticosterone stress response between fasting and non-fasting breeding snow petrels (Pagodroma nivea), an extremely long-lived bird. As expected, we found that the corticosterone stress response was attenuated in old petrels, but only when they were not fasting. Interestingly, this pattern was not apparent in fasting petrels, suggesting that old birds downregulate their corticosterone stress response and increase their parental investment only when they are in good body condition. At the ultimate level, old individuals may maintain a strong corticosterone stress response when fasting because the survival costs of increased stress resistance and parental effort might then outweigh their reproductive benefits.
Programme 109
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Address
Corporate Author Thesis Bachelor's thesis
Publisher (down) Royal Society Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 7669
Permanent link to this record
 
 
Author
Title Ecological diversity of Antarctic echinoids. Type Book Chapter
Year 2008 Publication Abbreviated Journal
Volume Issue Pages 37-41
Keywords
Abstract In: The expedition ANTARKTIS-XXIII/8 of the research vessel “Polarstern” in 2006/2007: ANT-XXIII/8; 23 November 2006-30 January 2007 Cape Town-Punta Arenas (J Gutt, edit.). Berichte zur Polar- und Meeresforschung = Reports on polar and marine research, 569.
Programme 1124
Campaign
Address
Corporate Author Thesis
Publisher (down) Reports on polar and marine research Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 2816
Permanent link to this record
 
 
Author
Title Buoyancy under Control: Underwater Locomotor Performance in a Deep Diving Seabird Suggests Respiratory Strategies for Reducing Foraging Effort Type Journal Article
Year 2010 Publication PLoS ONE Abbreviated Journal
Volume 5 Issue 3 Pages e9839 -
Keywords
Abstract Background
Because they have air stored in many body compartments, diving seabirds are expected to exhibit efficient behavioural strategies for reducing costs related to buoyancy control. We study the underwater locomotor activity of a deep-diving species from the Cormorant family (Kerguelen shag) and report locomotor adjustments to the change of buoyancy with depth.

Methodology/Principal Findings
Using accelerometers, we show that during both the descent and ascent phases of dives, shags modelled their acceleration and stroking activity on the natural variation of buoyancy with depth. For example, during the descent phase, birds increased swim speed with depth. But in parallel, and with a decay constant similar to the one in the equation explaining the decrease of buoyancy with depth, they decreased foot-stroke frequency exponentially, a behaviour that enables birds to reduce oxygen consumption. During ascent, birds also reduced locomotor cost by ascending passively. We considered the depth at which they started gliding as a proxy to their depth of neutral buoyancy. This depth increased with maximum dive depth. As an explanation for this, we propose that shags adjust their buoyancy to depth by varying the amount of respiratory air they dive with.

Conclusions/Significance
Calculations based on known values of stored body oxygen volumes and on deep-diving metabolic rates in avian divers suggest that the variations of volume of respiratory oxygen associated with a respiration mediated buoyancy control only influence aerobic dive duration moderately. Therefore, we propose that an advantage in cormorants – as in other families of diving seabirds – of respiratory air volume adjustment upon diving could be related less to increasing time of submergence, through an increased volume of body oxygen stores, than to reducing the locomotor costs of buoyancy control.
Programme 394
Campaign
Address
Corporate Author Thesis
Publisher (down) Public Library of Science Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1932-6203 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 527
Permanent link to this record
 
 
Author
Title Scaling of Soaring Seabirds and Implications for Flight Abilities of Giant Pterosaurs Type Journal Article
Year 2009 Publication PLoS ONE Abbreviated Journal
Volume 4 Issue 4 Pages 6 -6
Keywords
Abstract The flight ability of animals is restricted by the scaling effects imposed by physical and physiological factors. In comparisons of the power available from muscle and the mechanical power required to fly, it is predicted that the margin between the powers should decrease with body size and that flying animals have a maximum body size. However, predicting the absolute value of this upper limit has proven difficult because wing morphology and flight styles varies among species. Albatrosses and petrels have long, narrow, aerodynamically efficient wings and are considered soaring birds. Here, using animal-borne accelerometers, we show that soaring seabirds have two modes of flapping frequencies under natural conditions: vigorous flapping during takeoff and sporadic flapping during cruising flight. In these species, high and low flapping frequencies were found to scale with body mass (mass 0.30 and mass 0.18) in a manner similar to the predictions from biomechanical flight models (mass 1/3 and mass 1/6). These scaling relationships predicted that the maximum limits on the body size of soaring animals are a body mass of 41 kg and a wingspan of 5.1 m. Albatross-like animals larger than the limit will not be able to flap fast enough to stay aloft under unfavourable wind conditions. Our result therefore casts doubt on the flying ability of large, extinct pterosaurs. The largest extant soarer, the wandering albatross, weighs about 12 kg, which might be a pragmatic limit to maintain a safety margin for sustainable flight and to survive in a variable environment.
Programme 109;394
Campaign
Address
Corporate Author Thesis
Publisher (down) Public Library of Science Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1932-6203 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 2227
Permanent link to this record