. (2021). Antarctic surface temperature and elevation during the Last Glacial Maximum (Vol. 372).
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. (2021). An estimation of the quantitative impacts of copepod grazing on an under sea-ice spring phytoplankton bloom in western Baffin Bay, Canadian Arctic (Vol. 9).
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. (2021). Molecular response of a sub-antarctic population of the blue mussel (Mytilus edulis platensis) to a moderate thermal stress (Vol. 169).
Keywords: 2DE Abiotic stress Biomonitoring Gills Indicator species Kerguelen island Mytilus sp. qRT-PCR Temperature
Programme: 409
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Samantha C. Patrick, Julien G. A. Martin, Caroline C. Ummenhofer, Alexandre Corbeau, Henri Weimerskirch. (2021). Albatrosses respond adaptively to climate variability by changing variance in a foraging trait (Vol. 27).
Keywords: bet-hedging intra-individual variability resource acquisition salt-water immersion logger seabirds Southern Oscillation Index
Programme: 109
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. (2021). Untangling local and remote influences in two major petrel habitats in the oligotrophic Southern Ocean (Vol. 27).
Abstract: Ocean circulation connects geographically distinct ecosystems across a wide range of spatial and temporal scales via exchanges of physical and biogeochemical properties. Remote oceanographic processes can be especially important for ecosystems in the Southern Ocean, where the Antarctic Circumpolar Current transports properties across ocean basins through both advection and mixing. Recent tracking studies have indicated the existence of two large-scale, open ocean habitats in the Southern Ocean used by grey petrels (Procellaria cinerea) from two populations (i.e., Kerguelen and Antipodes islands) during their nonbreeding season for extended periods during austral summer (i.e., October to February). In this work, we use a novel combination of large-scale oceanographic observations, surface drifter data, satellite-derived primary productivity, numerical adjoint sensitivity experiments, and output from a biogeochemical state estimate to examine local and remote influences on these grey petrel habitats. Our aim is to understand the oceanographic features that control these isolated foraging areas and to evaluate their ecological value as oligotrophic open ocean habitats. We estimate the minimum local primary productivity required to support these populations to be much <1% of the estimated local primary productivity. The region in the southeast Indian Ocean used by the birds from Kerguelen is connected by circulation to the productive Kerguelen shelf. In contrast, the region in the south-central Pacific Ocean used by seabirds from the Antipodes is relatively isolated suggesting it is more influenced by local factors or the cumulative effects of many seasonal cycles. This work exemplifies the potential use of predator distributions and oceanographic data to highlight areas of the open ocean that may be more dynamic and productive than previously thought. Our results highlight the need to consider advective connections between ecosystems in the Southern Ocean and to re-evaluate the ecological relevance of oligotrophic Southern Ocean regions from a conservation perspective.
Keywords: Antarctic Circumpolar Current (ACC) biogeography conservation grey petrels high seas hotspot open ocean primary productivity Procellaria cinerea seabirds
Programme: 109
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. (2021). Contextual variations in calls of two nonoscine birds: the blue petrel Halobaena caerulea and the Antarctic prion Pachyptila desolata (Vol. 32).
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. (2021). A novel animal-borne miniature echosounder to observe the distribution and migration patterns of intermediate trophic levels in the Southern Ocean (Vol. 223).
Keywords: Biologging Diel vertical migration Functional data analysis Marine acoustics Micronekton Sonar tag
Programme: 1201
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. (2021). Multispecies tracking reveals a major seabird hotspot in the North Atlantic (Vol. 14). Bachelor's thesis, , .
Keywords: area beyond national jurisdiction Atlantic biologging conservation high seas marine protected area regional seas convention
Programme: 330,333,388,1036
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. (2021). North Atlantic winter cyclones starve seabirds (Vol. 31). Bachelor's thesis, , .
Keywords: at-sea distribution cyclones energy expenditure GLS tracking seabird migration seascape ecology
Programme: 330,388
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. (2021).
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