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Author |
Bustamante P, Fort J. |
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2018 |
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Eds. Burgeot T, Minier C, Cuny D, Cuny M-A, Bispo A, Grand C |
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388 |
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Bachelor's thesis |
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9781784054687 |
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yes |
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7408 |
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Author |
J Fort |
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Title |
Arctic seabird ecotoxicology at a hierarchy of scales |
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2018 |
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Polar 2018, 19-23 June 2018, Davos, Switzerland |
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Invited talk |
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388 |
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yes |
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7410 |
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2018 |
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Oral presentation : proceedings open science conference, 19-23 june 2018, Davos, Switzerland |
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1206 |
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7412 |
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Title |
Arctic precipitation: Observed trends and changes at Ny-Alesund, Svalbard |
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2018 |
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Polar 2018, 19-23 June 2018, Davos, Switzerland |
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1126 |
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7419 |
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Author |
Winton, H., Frey, M., Haigh, J., Mulvaney, R., Pyle, J., Savarino, J., Tuckwell, R., Weller, R., and Yang, X. |
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Title |
Air-snow transfer of nitrate in Dronning Maud Land, East Antarctica |
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2018 |
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SCAR/IASC open science conference 2018, Davos, Switzerland |
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1177 |
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Bachelor's thesis |
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yes |
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7424 |
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Title |
Contaminants and energy expenditure in an Arctic seabird: Organochlorine pesticides and perfluoroalkyl substances are associated with metabolic rate in a contrasted manner |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
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2017 |
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Setac europe 2017, brussels, belgium (7-11 may) |
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Black-legged kittiwake BMR Mercury Organic contaminants Thyroid hormones |
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Basal metabolic rate (BMR), the minimal energetic cost of living in endotherms, is known to be influenced by thyroid hormones (THs) which are known to stimulate in vitro oxygen consumption of tissues in birds and mammals. Several environmental contaminants may act on energy expenditure through their thyroid hormone-disrupting properties. However, the effect of contaminants on BMR is still poorly documented for wildlife. Here, we investigated the relationships between three groups of contaminants (organochlorines (OCs), perfluoroalkyl substances (PFASs), and mercury) with metabolic rate (MR), considered here as a proxy of BMR and also with circulating total THs (thyroxine (TT4) and triiodothyronine (TT3)) in Arctic breeding adult black-legged kittiwakes (Rissa tridactyla) from Svalbard, during the chick rearing period. Our results indicate a negative relationship between the sum of all detected chlordanes (?CHLs) and MR in both sexes whereas perfluorotridecanoate (PFTrA) and MR were positively related in females only. MR was not associated with mercury. Additionally, levels of TT3 were negatively related to ?CHLs but not to PFTrA. The findings from the present study indicate that some OCs (in both sexes) and some PFASs (only in females) could disrupt fine adjustment of BMR during reproduction in adult kittiwakes. Importantly, highly lipophilic OCs and highly proteinophilic PFASs appear, at least in females, to have the ability to disrupt the metabolic rate in an opposite way. Therefore, our study highlights the need for ecotoxicological studies to include a large variety of contaminants which can act in an antagonistic manner. |
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330 |
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Bachelor's thesis |
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yes |
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7436 |
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Title |
Isotopic composition of water vapor and snow precipitation at Dumont d'Urville, coastal East Antarctica |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
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2018 |
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1205 |
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Bachelor's thesis |
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7802 |
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Title |
Long-term monitoring of coastal benthic habitats in the Kerguelen Islands: a legacy of decades of marine biology research |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
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2019 |
Publication |
The kerguelen plateau: marine ecosystem and fisheries. proceedings of the second symposium |
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383-402 |
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sub-Antarctic islands, climate change, frontal shifts, marine reserve, benthos monitoring, thermo recorders, settlement plots, artificial reefs, habitat mapping, scientific diving |
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Abstract |
In the current context of climate change, sea-surface temperature variation, sea level rise and latitudinal shifts of currents and hydrological fronts are expected to affect marine biodiversity of the sub-Antarctic Islands, particularly in coastal waters. Characterising the impacts of climate change on marine communities requires recording environmental modifications through the establishment of long-term monitoring. PROTEKER aims at the establishment of a submarine observatory consisting of multi-disciplinary research: oceanography, habitat mapping and species inventories, genetic, eco-physiological and trophic analyses. It also aims to provide scientific standards for the management of the Kerguelen Marine Reserve. Eighteen sampling sites of previous programs were revisited by scuba diving among which eight were selected for monitoring and were progressively equipped. ROV observations and beam trawling have also been conducted for contextualisation. These sites (Morbihan Bay (4), North (2) and South (2) coast) are monitored using photo/video surveys, temperature and salinity sensors, and settlement plots. Sessile communities collected on settlement plots will be characterised yearly through morphological and DNA techniques. Phylogeographical studies of target taxa are being conducted to improve our knowledge of endemicity and connectivity levels among sub-Antarctic islands. |
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1044 |
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978-1-876934-30-9 |
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978-1-876934-30-9 |
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7491 |
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Title |
Modeling species response to climate change in sub-Antarctic islands – Echinoids as a case study for the Kerguelen Plateau. |
Type ![sorted by Type field, ascending order (up)](img/sort_asc.gif) |
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2019 |
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The kerguelen plateau: marine ecosystem and fisheries. proceedings of the second symposium |
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383-402 |
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species distribution model, trophic niche, isotopic niche, biotic interaction, distribution dynamics |
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In the Kerguelen Islands, the multiple effects of climate change are expected to impact coastal marine habitats. Species distribution models (SDM) can represent a convenient tool to predict the biogeographic response of species to climate change but biotic interactions are not considered in these models. Nevertheless, new species interactions can emerge in communities exposed to environmental changes and the structure of biotic interactions is directly related to the potential resilience of ecosystems. Trophic interaction studies can help predict species vulnerability to environmental changes using carbon (?13C) and nitrogen (?15N) stable isotope ratios to generate trophic models. Using new available data inputs, we generated robust SDM and trophic interaction models to assess the potential response and sensitivity of three echinoid species to future worst-case scenarios of environmental change in the Kerguelen Plateau region. The two modelling approaches provide contrasting insights into the potential responses of each species to future environmental changes with both approaches identifying Abatus cordatus to be particularly vulnerable due to its narrow ecological niche and endemism to near-shore areas. Coupling insights gained from trophic niche ecology with species distribution modelling represents a promising approach that can improve our understanding and ability to predict the potential responses of species to future habitat changes. |
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1044 |
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7494 |
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Title |
Pelagic ecosystem functioning in the vicinity of the Kerguelen Islands (Southern Ocean): Towards an end-to-end approach |
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2019 |
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1201 |
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7502 |
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