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Sanne Muis, Maialen Irazoqui Apecechea, Job Dullaart, Joao de Lima Rego, Kristine Skovgaard Madsen, Jian Su, Kun Yan, Martin Verlaan |
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A High-Resolution Global Dataset of Extreme Sea Levels, Tides, and Storm Surges, Including Future Projections |
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Journal |
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Year |
2020 |
Publication |
Frontiers in Marine Science |
Abbreviated Journal |
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7 |
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263 |
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688 |
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2296-7745 |
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8031 |
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Author |
Andreas Richter, Alexey A. Ekaykin, Matthias O. Willen, Vladimir Ya. Lipenkov, Andreas Groh, Sergey V. Popov, Mirko Scheinert, Martin Horwath, Reinhard Dietrich |
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Title |
Surface Mass Balance Models Vs. Stake Observations: A Comparison in the Lake Vostok Region, Central East Antarctica |
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Journal |
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Year |
2021 |
Publication |
Frontiers in Earth Science |
Abbreviated Journal |
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Volume |
9 |
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Pages |
388 |
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411 |
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2296-6463 |
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yes |
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8030 |
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Title |
Temporal and spatial differences in the post-breeding behaviour of a ubiquitous Southern Hemisphere seabird, the common diving petrel |
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Year |
2020 |
Publication |
Royal Society Open Science |
Abbreviated Journal |
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Volume |
7 |
Issue |
11 |
Pages |
200670 |
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Keywords |
migration moult non-breeding Procellariiformes Southern Ocean stable isotopes |
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Abstract |
The non-breeding period plays a major role in seabird survival and population dynamics. However, our understanding of the migratory behaviour, moulting and feeding strategies of non-breeding seabirds is still very limited, especially for small-sized species. The present study investigated the post-breeding behaviour of three distant populations (Kerguelen Archipelago, southeastern Australia, New Zealand) of the common diving petrel (CDP) (Pelecanoides urinatrix), an abundant, widely distributed zooplanktivorous seabird breeding throughout the southern Atlantic, Indian and Pacific oceans. The timing, geographical destination and activity pattern of birds were quantified through geolocator deployments during the post-breeding migration, while moult pattern of body feathers was investigated using stable isotope analysis. Despite the high energetic cost of flapping flight, all the individuals quickly travelled long distances (greater than approx. 2500 km) after the end of the breeding season, targeting oceanic frontal systems. The three populations, however, clearly diverged spatially (migration pathways and destinations), and temporally (timing and duration) in their post-breeding movements, as well as in their period of moult. Philopatry to distantly separated breeding grounds, different breeding phenologies and distinct post-breeding destinations suggest that the CDP populations have a high potential for isolation, and hence, speciation. These results contribute to improving knowledge of ecological divergence and evolution between populations, and inform the challenges of conserving migratory species. |
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394 |
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yes |
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8029 |
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Title |
Snow hardness impacts intranivean locomotion of arctic small mammals |
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Journal |
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Year |
2021 |
Publication |
Ecosphere |
Abbreviated Journal |
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Volume |
12 |
Issue |
11 |
Pages |
e03835 |
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Keywords |
Arctic burrowing behavior digging fossorial hardness lemming locomotion rain-on-snow rodent snow subnivean tunnel |
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Abstract |
Fossorial locomotion is often considered as the most energetically costly of all terrestrial locomotion. Small arctic rodents, such as lemmings, dig tunnels not only in the soil but also through the snowpack, which is present for over 8 months of the year. Lemmings typically dig in the softest snow layer called the depth hoar but with climate change, melt-freeze and rain-on-snow (ROS) events are expected to increase in the Arctic, leading to a higher frequency of hardened snowpacks. We assessed the impacts of snow hardness on the locomotion of two lemming species showing different morphological adaptations for digging. We hypothesized that an increase in snow hardness would (1) decrease lemming performance and (2) increase their effort while digging, but those responses would differ between lemming species. We exposed four brown lemmings (Lemmus trimucronatus) and three collared lemmings (Dicrostonyx groenlandicus) to snow of different hardness (soft, hard, and ROS) during 30-min trials (n = 63 trials) in a cold room and filmed their behavior. We found that the digging speed and tunnel length of both species decreased with snow hardness and density, underlining the critical role of snow properties in affecting lemming digging performance. During the ROS trials, time spent digging by lemmings increased considerably and they also started using their incisors to help break the hard snow, validating our second hypothesis. Overall, digging performance was higher in collared lemmings, the species showing more morphological adaptations to digging, than in brown lemmings. We conclude that the digging performance of lemming is highly dependent on snowpack hardness and that the anticipated increase in ROS events may pose a critical energetic challenge for arctic rodent populations. |
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1042 |
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ISSN |
2150-8925 |
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yes |
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8028 |
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Title |
Strong migratory connectivity across meta-populations of sympatric North Atlantic seabirds |
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Year |
2021 |
Publication |
Marine Ecology Progress Series |
Abbreviated Journal |
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Volume |
SEA |
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Keywords |
Environmental niche Inter-population mixing Large-scale spatiotemporal dynamics Light-level geolocation Murres Population spread Seasonality |
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Abstract |
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Programme |
388 |
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0171-8630, 1616-1599 |
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yes |
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8027 |
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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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Title |
Individual migration strategy fidelity but no habitat specialization in two congeneric seabirds |
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Year |
2021 |
Publication |
Journal of Biogeography |
Abbreviated Journal |
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Volume |
48 |
Issue |
2 |
Pages |
263-275 |
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Keywords |
guillemots light-level geolocation murres Uria aalge Uria lomvia |
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Abstract |
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Programme |
388 |
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1365-2699 |
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1365-2699 |
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8025 |
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Title |
Ecological insights from three decades of animal movement tracking across a changing Arctic |
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2020 |
Publication |
Science |
Abbreviated Journal |
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Volume |
370 |
Issue |
6517 |
Pages |
712-715 |
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388 |
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8024 |
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Title |
Contrasting Spatial and Seasonal Trends of Methylmercury Exposure Pathways of Arctic Seabirds: Combination of Large-Scale Tracking and Stable Isotopic Approaches |
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Journal |
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Year |
2021 |
Publication |
Environmental Science & Technology |
Abbreviated Journal |
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Volume |
54 |
Issue |
21 |
Pages |
13619-13629 |
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388 |
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0013-936X |
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yes |
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8023 |
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Title |
Diurnal variations in oxygen and nitrogen isotopes of atmospheric nitrogen dioxide and nitrate: implications for tracing NOx oxidation pathways and emission sources |
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Year |
2023 |
Publication |
EGUsphere |
Abbreviated Journal |
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1-44 |
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1215 |
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Call Number |
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Serial |
8022 |
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