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Author Abadi Fitsum, Barbraud Christophe, Gimenez Olivier doi  isbn
openurl 
  Title Integrated population modeling reveals the impact of climate on the survival of juvenile emperor penguins Type Journal
  Year (down) 2017 Publication Global change biology Abbreviated Journal  
  Volume 23 Issue 3 Pages 1353-1359  
  Keywords Bayesian climate change emperor penguins integrated population model sea ice concentration southern annular mode survival  
  Abstract  
  Programme 109  
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  Corporate Author Thesis  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1354-1013 ISBN 1354-1013 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6632  
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Author file  doi
isbn  openurl
  Title Investigating snowpack volumes and icing dynamics in the moraine of an Arctic catchment using UAV photogrammetry Type Book Chapter
  Year (down) 2017 Publication The Photogrammetric Record Abbreviated Journal  
  Volume 32 Issue 160 Pages 497-512  
  Keywords  
  Abstract  
  Programme 1108,1111  
  Campaign  
  Address  
  Corporate Author Thesis Bachelor's thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0031-868X ISBN 0031-868X Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6963  
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Author Carravieri Alice, Weimerskirch Henri, Bustamante Paco, Cherel Yves doi  openurl
  Title Progressive ontogenetic niche shift over the prolonged immaturity period of wandering albatrosses Type Journal
  Year (down) 2017 Publication Royal Society Open Science Abbreviated Journal  
  Volume 4 Issue 10 Pages 171039  
  Keywords  
  Abstract Very little is known about trophic ontogenetic changes over the prolonged immaturity period of long-lived, wide-ranging seabirds. By using blood and feather trophic tracers (?13C and ?15N, and mercury, Hg), we studied age-related changes in feeding ecology during the immature phase of wandering albatrosses Diomedea exulans when they gradually change from a pure oceanic life to visits to their future breeding grounds. Immatures fed in subtropical waters at high trophic positions during moult. Between- and within-individual variations in isotopic niche were very high, irrespective of age, highlighting wide-ranging exploratory behaviours. In summer, while acting as central-place foragers from their future breeding colony, individuals progressively relied on lower trophic level prey and/or southern latitudes as they aged, until occupying a similar isotopic niche to that of adults. Immatures had exceptionally high Hg burdens, with males having lower Hg concentrations than females, suggesting that they foraged more in subantarctic waters. Our findings suggest a progressive ontogenetic niche shift during central-place foraging of this long-lived species.  
  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 2054-5703 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7150  
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Author doi  isbn
openurl 
  Title Understanding processes at the origin of species flocks with a focus on the marine Antarctic fauna Type Journal
  Year (down) 2017 Publication Biological Reviews Abbreviated Journal  
  Volume 93 Issue 1 Pages 481-504  
  Keywords adaptive radiation competition diversification ecological niche endemicity extinction life?history trait phylogeny  
  Abstract Species flocks (SFs) fascinate evolutionary biologists who wonder whether such striking diversification can be driven by normal evolutionary processes. Multiple definitions of SFs have hindered the study of their origins. Previous studies identified a monophyletic taxon as a SF if it displays high speciosity in an area in which it is endemic (criterion 1), high ecological diversity among species (criterion 2), and if it dominates the habitat in terms of biomass (criterion 3); we used these criteria in our analyses. Our starting hypothesis is that normal evolutionary processes may provide a sufficient explanation for most SFs. We thus clearly separate each criterion and identify which biological (intrinsic) and environmental (extrinsic) traits are most favourable to their realization. The first part focuses on evolutionary processes. We highlight that some popular putative causes of SFs, such as key innovations or ecological speciation, are neither necessary nor sufficient to fulfill some or all of the three criteria. Initial differentiation mechanisms are diverse and difficult to identify a posteriori because a primary differentiation of one type (genetic, ecological or geographical) often promotes other types of differentiation. Furthermore, the criteria are not independent: positive feedbacks between speciosity and ecological diversity among species are expected whatever the initial cause of differentiation, and ecological diversity should enhance habitat dominance at the clade level. We then identify intrinsic and extrinsic factors that favour each criterion. Low dispersal emerges as a convincing driver of speciosity. Except for a genomic architecture favouring ecological speciation, for which assessment is difficult, high effective population sizes are the single intrinsic factor that directly enhances speciosity, ecological diversity and habitat dominance. No extrinsic factor appeared to enhance all criteria simultaneously but a combination of factors (insularity, fragmentation and environmental stability) may favour the three criteria, although the effect is indirect for habitat dominance. We then apply this analytical framework to Antarctic marine environments by analysing data from 18 speciose clades belonging to echinoderms (five unrelated clades), notothenioid fishes (five clades) and peracarid crustaceans (eight clades). Antarctic shelf environments and history appear favourable to endemicity and speciosity, but not to ecological specialization. Two main patterns are distinguished among taxa. (i) In echinoderms, many brooding, species?rich and endemic clades are reported, but without remarkable ecological diversity or habitat dominance. In these taxa, loss of the larval stage is probably a consequence of past Antarctic environmental factors, and brooding is suggested to be responsible for enhanced allopatric speciation (via dispersal limitation). (ii) In notothenioids and peracarids, many clades fulfill all three SF criteria. This could result from unusual features in fish and crustaceans: chromosome instability and key innovations (antifreeze proteins) in notothenioids, ecological opportunity in peracarids, and a genomic architecture favouring ecological speciation in both groups. Therefore, the data do not support our starting point that normal evolutionary factors or processes drive SFs because in these two groups uncommon intrinsic features or ecological opportunity provide the best explanation. The utility of the three?criterion SF concept is therefore questioned and guidelines are given for future studies.  
  Programme 1044  
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  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1464-7931 ISBN 1464-7931 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6688  
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Author Collet Julien, Patrick Samantha C., Weimerskirch Henri doi  isbn
openurl 
  Title Behavioral responses to encounter of fishing boats in wandering albatrosses Type Journal
  Year (down) 2017 Publication Ecology and evolution Abbreviated Journal  
  Volume 7 Issue 10 Pages 3335-3347  
  Keywords competition fisheries foraging decisions movement ecology seabirds vessel monitoring system  
  Abstract Animals are attracted to human food subsidies worldwide. The behavioral response of individuals to these resources is rarely described in detail, beyond chances of encounters. Seabirds for instance scavenge in large numbers at fishing boats, triggering crucial conservation issues, but how the response to boats varies across encounters is poorly known. Here we examine the behavioral response of wandering albatrosses (Diomedea exulans), equipped with GPS tags, to longline fishing boats operating near their colony for which we had access to vessel monitoring system data. We distinguish between encounters (flying within 30 km of a boat) and attendance behavior (sitting on the sea within 3 km of a boat), and examine factors affecting each. In particular, we test hypotheses that the response to encountered boats should vary with sex and age in this long?lived dimorphic species. Among the 60% trips that encountered boats at least once, 80% of them contained attendance (but attendance followed only 60% of each single encounter). Birds were more attracted and remained attending longer when boats were hauling lines, despite the measures enforced by this fleet to limit food availability during operations. Sex and age of birds had low influence on the response to boats, except the year when fewer boats came fishing in the area, and younger birds were attending further from boats compared to older birds. Net mass gain of birds was similar across sex and not affected by time spent attending boats. Our results indicate albatrosses extensively attend this fishery, with no clear advantages, questioning impacts on foraging time budgets. Factors responsible for sex foraging segregation at larger scale seem not to operate at this fleet near the colony and are not consistent with predictions of optimal foraging theory on potential individual dominance asymmetries. This approach complements studies of large?scale overlap of animals with human subsidies.  
  Programme 109  
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  Corporate Author Thesis  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2045-7758 ISBN 2045-7758 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6636  
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Author doi  openurl
  Title Fathers matter: male body mass affects life-history traits in a size-dimorphic seabird Type Journal
  Year (down) 2017 Publication Proceedings of the Royal Society B: Biological Sciences Abbreviated Journal  
  Volume 284 Issue 1854 Pages 20170397  
  Keywords  
  Abstract  
  Programme 109  
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  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 0962-8452 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7156  
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Author Cox Sam L., Orgeret Florian, Gesta Mathieu, Rodde Charles, Heizer Isaac, Weimerskirch Henri, Guinet Christophe, O'Hara Robert B. doi  isbn
openurl 
  Title Processing of acceleration and dive data on?board satellite relay tags to investigate diving and foraging behaviour in free?ranging marine predators Type Journal
  Year (down) 2017 Publication Methods in Ecology and Evolution Abbreviated Journal  
  Volume 9 Issue 1 Pages 64-77  
  Keywords  
  Abstract  
  Programme 109  
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  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2041-210X ISBN 2041-210X Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6658  
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Author Creasy Neala, Long Maureen D., Ford Heather A. doi  isbn
openurl 
  Title Deformation in the lowermost mantle beneath Australia from observations and models of seismic anisotropy Type Journal
  Year (down) 2017 Publication Journal of Geophysical Research: Solid Earth Abbreviated Journal  
  Volume 122 Issue 7 Pages 5243-5267  
  Keywords anisotropy lowermost mantle mantle dynamics postperovskite shear wave splitting  
  Abstract Abstract Observations of seismic anisotropy near the core?mantle boundary may yield constraints on patterns of lowermost mantle flow. We examine seismic anisotropy in the lowermost mantle beneath Australia, bounded by the African and Pacific Large Low Shear Velocity Provinces. We combined measurements of differential splitting of SKS?SKKS and S?ScS phases sampling our study region over a range of azimuths, using data from 10 long?running seismic stations. Observations reveal complex and laterally heterogeneous anisotropy in the lowermost mantle. We identified two subregions for which we have robust measurements of D??associated splitting for a range of ray propagation directions and applied a forward modeling strategy to understand which anisotropic scenarios are consistent with the observations. We tested a variety of elastic tensors and orientations, including single?crystal elasticity of lowermost mantle minerals (bridgmanite, postperovskite, and ferropericlase), tensors based on texture modeling in postperovskite aggregates, elasticity predicted from deformation experiments on polycrystalline MgO aggregates, and tensors that approximate the shape preferred orientation of partial melt. We find that postperovskite scenarios are more consistently able to reproduce the observations. Beneath New Zealand, the observations suggest a nearly horizontal [100] axis orientation with an azimuth that agrees well with the horizontal flow direction predicted by previous mantle flow models. Our modeling results further suggest that dominant slip on the (010) plane in postperovskite aggregates provides a good fit to the data but the solution is nonunique. Our results have implications for the mechanisms of deformation and anisotropy in the lowermost mantle and for the patterns of mantle flow.  
  Programme 133  
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  Corporate Author Thesis  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 2169-9313 ISBN 2169-9313 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6768  
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Author doi  isbn
openurl 
  Title Evolutionary changes in symbiont community structure in ticks Type Journal
  Year (down) 2017 Publication Molecular Ecology Abbreviated Journal  
  Volume 26 Issue 11 Pages 2905-2921  
  Keywords co?evolution heritable symbiont communities maternally inherited bacteria symbiosis tick  
  Abstract Abstract Ecological specialization to restricted diet niches is driven by obligate, and often maternally inherited, symbionts in many arthropod lineages. These heritable symbionts typically form evolutionarily stable associations with arthropods that can last for millions of years. Ticks were recently found to harbour such an obligate symbiont, Coxiella?LE, that synthesizes B vitamins and cofactors not obtained in sufficient quantities from blood diet. In this study, the examination of 81 tick species shows that some Coxiella?LE symbioses are evolutionarily stable with an ancient acquisition followed by codiversification as observed in ticks belonging to the Rhipicephalus genus. However, many other Coxiella?LE symbioses are characterized by low evolutionary stability with frequent host shifts and extinction events. Further examination revealed the presence of nine other genera of maternally inherited bacteria in ticks. Although these nine symbionts were primarily thought to be facultative, their distribution among tick species rather suggests that at least four may have independently replaced Coxiella?LE and likely represent alternative obligate symbionts. Phylogenetic evidence otherwise indicates that cocladogenesis is globally rare in these symbioses as most originate via horizontal transfer of an existing symbiont between unrelated tick species. As a result, the structure of these symbiont communities is not fixed and stable across the tick phylogeny. Most importantly, the symbiont communities commonly reach high levels of diversity with up to six unrelated maternally inherited bacteria coexisting within host species. We further conjecture that interactions among coexisting symbionts are pivotal drivers of community structure both among and within tick species.  
  Programme 333  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0962-1083 ISBN 0962-1083 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6930  
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Author doi  isbn
openurl 
  Title From early life to senescence: individual heterogeneity in a long?lived seabird Type Journal
  Year (down) 2017 Publication Ecological Monographs Abbreviated Journal  
  Volume 88 Issue 1 Pages 60-73  
  Keywords  
  Abstract  
  Programme 109  
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  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 0012-9615 ISBN 0012-9615 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6661  
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