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Author doi  openurl
  Title Global political responsibility for the conservation of albatrosses and large petrels Type Journal
  Year 2021 Publication Science Advances Abbreviated Journal  
  Volume 7 Issue 10 Pages eabd7225  
  Keywords  
  Abstract Migratory marine species cross political borders and enter the high seas, where the lack of an effective global management framework for biodiversity leaves them vulnerable to threats. Here, we combine 10,108 tracks from 5775 individual birds at 87 sites with data on breeding population sizes to estimate the relative year-round importance of national jurisdictions and high seas areas for 39 species of albatrosses and large petrels. Populations from every country made extensive use of the high seas, indicating the stake each country has in the management of biodiversity in international waters. We quantified the links among national populations of these threatened seabirds and the regional fisheries management organizations (RFMOs) which regulate fishing in the high seas. This work makes explicit the relative responsibilities that each country and RFMO has for the management of shared biodiversity, providing invaluable information for the conservation and management of migratory species in the marine realm.  
  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 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8369  
Permanent link to this record
 
 
Author Casey Youngflesh, Yun Li, Heather J. Lynch, Karine Delord, Christophe Barbraud, Rubao Ji, Stephanie Jenouvrier doi  openurl
  Title Lack of synchronized breeding success in a seabird community: extreme events, niche separation, and environmental variability Type Journal
  Year 2021 Publication Oikos Abbreviated Journal  
  Volume 130 Issue 11 Pages 1943-1953  
  Keywords Antarctica environmental indicators extreme events global change niche separation synchrony  
  Abstract Synchrony in ecological systems, the degree to which elements respond similarly over time or space, can inform our understanding of how ecosystems function and how they are responding to global change. While studies of ecological synchrony are often focused on within-species dynamics, synchrony among species may provide important insights into how dynamics of one species are indicative of conditions relevant to the larger community, with both basic and applied implications. Ecological theory suggests there may be conditions under which communities might exhibit increased synchrony, however, the degree to which these patterns are borne out in natural systems is currently unknown. We used long-term breeding success data from a community of Antarctic seabirds to assess the degree of interspecific, community synchrony, and the role that extreme events play in driving these dynamics. We assessed theoretical links between community synchrony, niche separation, and environmental variability using data from this and three other seabird communities as well as a simulation study. Results show that reproductive success for individual species in the Antarctic seabird community fluctuated relatively independently from one another, resulting in little synchrony across this community, outside of extreme years. While an exceptionally poor year for a given species was not necessarily associated with an exceptionally poor year for any other species, one community-wide extreme year existed. When compared to other seabird communities, this group of Antarctic seabirds exhibited lower overall synchrony and higher estimated niche separation, supporting theoretical predictions. Empirical and simulation-derived results suggest that communities where temporal variation is small for conditions in which species respond substantially differently, and large for conditions in which species respond similarly, may exhibit more synchronous dynamics. Identifying where and why synchronous dynamics might be more apparent has the potential to inform how ecological communities might respond to future global change.  
  Programme 109  
  Campaign  
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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 1600-0706 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8385  
Permanent link to this record
 
 
Author doi  openurl
  Title Huff and puff and blow down: invasive plants traits response to strong winds at the Southern Oceanic Islands Type Journal
  Year 2021 Publication Oikos Abbreviated Journal  
  Volume 130 Issue 11 Pages 1919-1929  
  Keywords environmental filter functional traits hypervolume Iles Kerguelen intraspecific variability mechanical stress  
  Abstract Invasions constitute a major driver of biodiversity changes. Insular plant communities are particularly vulnerable to invasions and are relevant models for investigating mechanisms supporting the establishment and spread of introduced plants. Terrestrial flora of sub-Antarctic islands must often thrive in highly windy habitats, thus imposing strong mechanical constraints on individuals. Many alien plants at the sub-Antarctic islands are of tropical or temperate origins, where they were exposed to less stringent wind conditions. As wind likely represents a strong environmental filter for the successful establishment and further geographic spread of plants, they should have developed responses to resist and successfully colonize the Iles Kerguelen. We studied responses to wind of three herbaceous species that are invasive at Iles Kerguelen. We sampled plant individuals at different locations, under windy and sheltered conditions. Traits related to wind avoidance and tolerance and to resource acquisition were measured. We additionally assessed individual performance (biomass) to determine the consequences of trait variations. We focused on trait mean and variance, in particular, through the calculation of hypervolumes. This study emphasized that wind has important effects on plant economics spectrum, including traits involved in mechanical avoidance and light acquisition, with varying strategies, which seem to depend on the biological type of the species (grass versus non-grass). Wind generally reduces individual performance, and this negative effect is not direct but operates through the modification of plant trait values. Furthermore, analyses performed at the hypervolume scale indicate that not only functional trait mean but also its variability account for plant performance. The existence of contrasting growth strategies to cope with local environmental conditions suggests that invaders will be able to occupy different niches, which may ultimately impact local communities. Our results highlight the importance of considering multi-traits responses to meaningfully capture plant adjustments to stress.  
  Programme 136  
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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 1600-0706 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8372  
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Author Christophe Sauser, Karine Delord, Christophe Barbraud doi  isbn
openurl 
  Title Demographic sensitivity to environmental forcings: a multi-trait, multi-colony approach Type Journal
  Year 2021 Publication Oikos Abbreviated Journal  
  Volume 130 Issue 6 Pages 943-957  
  Keywords  
  Abstract  
  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 1600-0706 ISBN 1600-0706 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8039  
Permanent link to this record
 
 
Author doi  openurl
  Title Once upon a time in the far south: Influence of local drivers and functional traits on plant invasion in the harsh sub-Antarctic islands Type Journal
  Year 2021 Publication Journal of Vegetation Science Abbreviated Journal  
  Volume 32 Issue 4 Pages e13057  
  Keywords alien plants anthropogenic propagule pressure cold environments human disturbances plant invasiveness species distribution models topoclimate  
  Abstract Aim Here, we aim to: (a) investigate the local effect of environmental and anthropogenic factors on alien plant invasion in sub-Antarctic islands; and (b) explore whether and how functional traits affect alien species dependence on anthropogenic factors in these environments. Location Possession Island, Crozet archipelago (French sub-Antarctic islands). Methods Single-species distribution models were used to explore the effect of high-resolution topoclimatic and human-related variables on the occurrence of six alien plants colonizing French sub-Antarctic islands. Furthermore, plant responses to human-related variables and the effect of those variables in interaction with plant traits were analysed by means of a multi-species distribution model. This allowed identifying functional features mediating the influence of human activities on the occurrence probability of alien plant species. Results We observed two main invasion patterns: (a) species predicted to occur close to the introduction sites, whose occurrence probability appeared to be strongly affected by anthropogenic factors; and (b) species predicted to occur nearly everywhere on Possession Island, except in areas featuring particularly harsh climatic conditions. Differences in the influence of human-related variables on the occurrence of the alien species were mostly related to their life history, plant height and residence time, with perennial and low-statured species introduced earlier appearing less dependent on human-induced dispersal and disturbance. Conclusions We conclude that both topoclimatic and anthropogenic factors affect plant invasion on sub-Antarctic islands. Specifically, species predicted to occur close to their introduction sites appear much more dependent on human presence and activity, potentially due to the lack of key functional traits allowing them to spread successfully across Possession Island under the harsh sub-Antarctic climate. Yet, particularly severe abiotic conditions are a major constraint which equally limits the occurrence of all alien plants, irrespective of their dependence on anthropogenic factors.  
  Programme 136  
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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 1654-1103 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8298  
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Author doi  openurl
  Title The biology and feeding ecology of Arctic charr in the Kerguelen Islands Type Journal
  Year 2021 Publication Journal of Fish Biology Abbreviated Journal  
  Volume 98 Issue 2 Pages 526-536  
  Keywords  
  Abstract  
  Programme 1041  
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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 1095-8649 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8178  
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Author doi  openurl
  Title The story of endurance: Biogeography and the evolutionary history of four Holarctic butterflies with different habitat requirements Type Journal
  Year 2021 Publication Journal of Biogeography Abbreviated Journal  
  Volume 48 Issue 3 Pages 590-602  
  Keywords COI Ef-1? insect Lepidoptera mammoth steppe Pleistocene Quaternary RpS5 species distribution modelling  
  Abstract  
  Programme 1036  
  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 1365-2699 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7984  
Permanent link to this record
 
 
Author doi  isbn
openurl 
  Title Individual migration strategy fidelity but no habitat specialization in two congeneric seabirds Type Journal
  Year 2021 Publication Journal of Biogeography Abbreviated Journal  
  Volume 48 Issue 2 Pages 263-275  
  Keywords guillemots light-level geolocation murres Uria aalge Uria lomvia  
  Abstract  
  Programme 388  
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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 1365-2699 ISBN 1365-2699 Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 8025  
Permanent link to this record
 
 
Author doi  openurl
  Title Diel at-sea activity of two species of great albatrosses: the ontogeny of foraging and movement behaviour Type Journal
  Year 2021 Publication Journal of Avian Biology Abbreviated Journal  
  Volume 52 Issue 2 Pages  
  Keywords albatross diel activity pattern Diomedea flight behavior foraging activity moon illumination night activity seabirds  
  Abstract The first year of life is a period of high mortality in animals. Reduced foraging capacities of naive individuals might be the primary cause of their mortality. These capacities are supposed to be progressively acquired during the first months of life. In this study, we investigate the ontogeny of flight capacities, by day and night, of first-year individuals, and compare it with adults from two closely related species of great albatrosses: Amsterdam Diomedea amsterdamensis and wandering Diomedea exulans albatrosses which forage in different environmental conditions. We used 71 tracks of 71 juvenile birds and 141 of 116 incubating adults to compare both age categories. In order to explore the effect of moon light on night activity, we elaborated a new formula which improves the precision of the proxy of moon illumination. By day, we found that juveniles of both species reach some adult foraging capacities in less than two months. By night, albatrosses have reduced activity increasing during the first weeks at sea for juveniles and changing in accordance with moon illumination for both juveniles and adults. A peak of flight activity at dawn and dusk was apparent for both species. Interspecific comparison underlined that Amsterdam albatrosses were more active than wandering albatrosses, suggesting a difference in food and foraging strategy. Overall, we highlighted how life history traits, environmental conditions and time of the day affect the foraging activity of two related species of seabirds.  
  Programme 109  
  Campaign  
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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 1600-048X ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 7943  
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Author Morten Frederiksen, Olivier Gilg, Glenn Yannic doi  openurl
  Title Cross-icecap spring migration confirmed in a high-Arctic seabird, the Ivory Gull Pagophila eburnea Type Journal
  Year 2021 Publication Ibis Abbreviated Journal  
  Volume 163 Issue 2 Pages 706-714  
  Keywords ecological barrier Greenland icecap high-altitude migration  
  Abstract  
  Programme 1210  
  Campaign  
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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 0019-1019 ISBN Medium  
  Area Expedition Conference  
  Notes Approved yes  
  Call Number Serial 6348  
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