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Title |
Global political responsibility for the conservation of albatrosses and large petrels |
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Journal |
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Year |
2021 |
Publication |
Science Advances |
Abbreviated Journal |
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Volume |
7 |
Issue |
10 |
Pages |
eabd7225 |
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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. |
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109 |
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yes |
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8369 |
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Title |
Fate of Springtime Atmospheric Reactive Mercury: Concentrations and Deposition at Zeppelin, Svalbard |
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Journal |
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Year |
2021 |
Publication |
ACS Earth and Space Chemistry |
Abbreviated Journal |
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Volume |
5 |
Issue |
11 |
Pages |
3234-3246 |
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1028 |
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yes |
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8361 |
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Title |
Seasonal variation of mercury contamination in Arctic seabirds: A pan-Arctic assessment |
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Journal |
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Year |
2021 |
Publication |
Science of The Total Environment |
Abbreviated Journal |
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Volume |
750 |
Issue |
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Pages |
142201 |
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Keywords |
Feathers Metal Polar Seasonal variation Top predators |
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Abstract |
Mercury (Hg) is a natural trace element found in high concentrations in top predators, including Arctic seabirds. Most current knowledge about Hg concentrations in Arctic seabirds relates to exposure during the summer breeding period when researchers can easily access seabirds at colonies. However, the few studies focused on winter have shown higher Hg concentrations during the non-breeding period than breeding period in several tissues. Hence, improving knowledge about Hg exposure during the non-breeding period is crucial to understanding the threats and risks encountered by these species year-round. We used feathers of nine migratory alcid species occurring at high latitudes to study bird Hg exposure during both the breeding and non-breeding periods. Overall, Hg concentrations during the non-breeding period were ~3 times higher than during the breeding period. In addition, spatial differences were apparent within and between the Atlantic and Pacific regions. While Hg concentrations during the non-breeding period were ~9 times and ~3 times higher than during the breeding period for the West and East Atlantic respectively, Hg concentrations in the Pacific during the non-breeding period were only ~1.7 times higher than during the breeding period. In addition, individual Hg concentrations during the non-breeding period for most of the seabird colonies were above 5 ?g g?1 dry weight (dw), which is considered to be the threshold at which deleterious effects are observed, suggesting that some breeding populations might be vulnerable to non-breeding Hg exposure. Since wintering area locations, and migration routes may influence seasonal Hg concentrations, it is crucial to improve our knowledge about spatial ecotoxicology to fully understand the risks associated with Hg contamination in Arctic seabirds. |
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388 |
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0048-9697 |
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yes |
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8026 |
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Year |
2021 |
Publication |
Marine pollution bulletin |
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Volume |
169 |
Issue |
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Pages |
112559 |
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Keywords |
At-sea survey Frontal system Garbage patch Plastic litter Southern Indian Ocean |
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109 |
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Bachelor's thesis |
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0025-326X |
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yes |
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7939 |
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Year |
2021 |
Publication |
Frontiers in Marine Science |
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Volume |
8 |
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1201 |
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2296-7745 |
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yes |
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Serial |
8326 |
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Author |
A. Corbeau, J. Collet, F. Orgeret, P. Pistorius, H. Weimerskirch |
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Title |
Fine-scale interactions between boats and large albatrosses indicate variable susceptibility to bycatch risk according to species and populations |
Type |
Journal |
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Year |
2021 |
Publication |
Animal Conservation |
Abbreviated Journal |
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Volume |
24 |
Issue |
4 |
Pages |
689-699 |
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Keywords |
albatross populations biologging bycatch assessment bycatch risk ecological trap fisheries fishing boat bycatch seabirds |
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109 |
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1469-1795 |
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yes |
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Serial |
8209 |
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Author |
Pamela E. Michael, Chris Wilcox, Christophe Barbraud, Karine Delord, Michael Sumner, Henri Weimerskirch |
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Title |
Dynamic enforcement of bycatch via reproductive value can increase theoretical efficiency |
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Journal |
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Year |
2021 |
Publication |
Marine Policy |
Abbreviated Journal |
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Volume |
132 |
Issue |
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Pages |
104684 |
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Keywords |
Albatross Bycatch Dynamic enforcement Dynamic ocean management Monitoring Reproductive value |
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Abstract |
Managing marine systems is challenging, as many marine species are highly mobile. Albatross exemplify this paradigm, overlapping multiple threats at sea, including bycatch. The typical characterization of bycatch, the number of individuals, ignores the long-term, population-wide repercussions of bycatch. Including an estimate of the reproductive value (RV, the loss of future reproductive contributions, given bycatch) is a complementary tool, incorporating the population-wide repercussions of bycatch. While bycatch management via dynamic spatial management allows management boundaries to move, it requires monitoring and enforcement to be effective. We provide a proof of concept to optimize bycatch enforcement activities by dynamically targeting areas of concentrated future productivity characterized by RV. This paper examined a population of black-browed albatross (Thalassarche melanophris) as a case study. We calculate RV and apply it to at-sea distributions. This creates spatiotemporally explicit surfaces used to prioritize times and locations for bycatch mitigation enforcement. Dynamic enforcement has greater theoretical efficiency than static enforcement, but this difference decreases with increasing population-wide RV subject to enforcement. Though there are implementation challenges, many can be reduced with existing tools providing various opportunities. Incorporating RV when characterizing the impacts of bycatch on a population and strategically applying dynamic bycatch enforcement based on RV can be a powerful, efficient component of dynamic ocean management. |
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109 |
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0308-597X |
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0308-597X |
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yes |
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8342 |
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Author |
Niels M. Schmidt, Olivier Gilg, Jon Aars, Rolf A. Ims |
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Title |
Fat, Furry, Flexible, and Functionally Important: Characteristics of Mammals Living in the Arctic |
Type |
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Year |
2021 |
Publication |
Arctic Ecology |
Abbreviated Journal |
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Issue |
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Pages |
357-384 |
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Keywords |
arctic ecosystems Arctic mammals climate change deglaciation food webs homeotherms low mammal species diversity primary production |
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Abstract |
Mammals constitute a group of vertebrates that share a number of unique characteristics,such as nursing their young with milk, and having hair. The pattern of low mammal species diversity in the Arctic probably reflects a combination of mainly two driving factors: first, being homeotherms, mammals require a substantial amount of energy to sustain the various life processes, and the arctic regions are characterized by a very low availability of energy due to short seasons for primary production. Secondly, the occurrence of arctic mammals today reflects the reinvasion of the mammal species into the Arctic as the ecosystems were re-established following the deglaciation. This chapter discusses the characteristics of the arctic mammals, including their unique adaptations to life, and their role as both consumer and food base in the arctic ecosystems. Climate change in the Arctic may also alter the interactions within food webs. |
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1036 |
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978-1-118-84658-2 |
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yes |
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8489 |
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2021 |
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1151 |
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yes |
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6711 |
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Title |
Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes |
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Year |
2021 |
Publication |
Frontiers in Forests and Global Change |
Abbreviated Journal |
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Volume |
4 |
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136 |
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2624-893X |
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yes |
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8301 |
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