Polar Research最新文献_第5页

Alfred Eaton: a Victorian naturalist at the ends of the world 阿尔弗雷德·伊顿：世界尽头的维多利亚博物学家

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-12-14 DOI: 10.33265/polar.v41.8420

C. Devlin

引用次数: 0

Mosbacher J.B. et al. Hair mineral levels as indicator of wild Mosbacher J.B.等人头发矿物质水平作为野生动物的指标

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-12-12 DOI: 10.33265/polar.v41.9154

J. Mosbacher, J. Desforges, A. Michelsen, S. Hansson, Mikkel Stelvig, I. Eulaers, C. Sonne, R. Dietz, B. Jenssen, T. Ciesielski, S. Lierhagen, T. Flaten, G. Le Roux, Marie Rønne Aggerbeck, N. Schmidt

引用次数: 0

Hair mineral levels as indicator of wildlife demographics?—a pilot study of muskoxen 头发矿物质含量是野生动物人口统计的指标?对麝牛的初步研究

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-11-09 DOI: 10.33265/polar.v41.8543

Jesper Bruun Mosbacher, Jean-Pierre Desforges, Anders Michelsen, Mikkel Stelvig, Igor Eulaers, Christian Sonne, Rune Dietz, Bjørn Munro Jenssen, Tomasz Maciej Ciesielski, Syverin Lierhagen, Trond Peder Flaten, Marie R. Aggerbeck, Niels Martin Schmidt

{"title":"Hair mineral levels as indicator of wildlife demographics?—a pilot study of muskoxen","authors":"Jesper Bruun Mosbacher, Jean-Pierre Desforges, Anders Michelsen, Mikkel Stelvig, Igor Eulaers, Christian Sonne, Rune Dietz, Bjørn Munro Jenssen, Tomasz Maciej Ciesielski, Syverin Lierhagen, Trond Peder Flaten, Marie R. Aggerbeck, Niels Martin Schmidt","doi":"10.33265/polar.v41.8543","DOIUrl":"https://doi.org/10.33265/polar.v41.8543","url":null,"abstract":"The tight linkage between mineral status and health and demographics in animals is well documented. Mineral deficiencies have been coupled to population declines in wildlife. Current practices typically rely on liver, kidney and/or serum samples to assess mineral levels. Such destructive sampling strategies are, however, not feasible for remote or endangered populations. Hair may constitute an alternative tissue, sampled through non-invasive means, to investigate mineral levels in wildlife. In the pilot study presented here, we examine whether mineral levels in hair samples from a well-studied muskox (Ovibos moschatus) population in High-Arctic Greenland are associated with a vital rate and may, therefore, serve as indicators of wildlife population demographics. We show that inter-annual variations in levels of three minerals—copper, selenium and molybdenum—are associated with fluctuations in annual calf recruitment, with poor recruitment in years of low mineral levels in hair. Local environmental conditions also varied with calf recruitment but appeared to be less robust predictors of calf recruitment than hair mineral levels. Our results suggest that hair mineral levels may serve as an indicator of vital demographic rates and, ultimately, of wildlife population trends.","PeriodicalId":49684,"journal":{"name":"Polar Research","volume":"38 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138524272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Aggregations of foraging black guillemots (Cepphus grylle) at a sea-ice edge in front of a tidewater glacier 一群觅食的黑海鸠(Cepphus grylle)聚集在潮汐冰川前的海冰边缘

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-11-09 DOI: 10.33265/polar.v41.7141

Øystein Varpe, Geir W. Gabrielsen

{"title":"Aggregations of foraging black guillemots (Cepphus grylle) at a sea-ice edge in front of a tidewater glacier","authors":"Øystein Varpe, Geir W. Gabrielsen","doi":"10.33265/polar.v41.7141","DOIUrl":"https://doi.org/10.33265/polar.v41.7141","url":null,"abstract":"Seabirds in cold biomes sometimes aggregate near glacier fronts and at sea-ice edges to forage. In this note, we report on large aggregations of black guillemots (Cepphus grylle) at the edge of sea ice in front of the tidewater glacier Kongsbreen (Kongsfjorden, Svalbard). During several days in the second half of June 2011, we observed 49–155 individuals of black guillemots at this ice edge. They foraged actively, and many of the dives were directed underneath the sea ice. The outflow of glacial meltwater and resulting upwelling generated opportunities for the black guillemots to feed, likely on zooplankton or fish. The black guillemots used the sea ice as a resting platform between dives or diving sessions, and whilst on the ice, they interacted socially. On our last visit, the sea ice was gone, and the black guillemots had left the bay. At the neighbouring tidewater glacier Kronebreen, there was no sea ice connected to the glacier. Surface-feeding seabirds, particularly black-legged kittiwakes (Rissa tridactyla), were numerous at the plumes generated by meltwater from Kronebreen. Black guillemots were not seen at these plumes, but some individuals were seen scattered in the fjord system. Our observations add to the natural history of black guillemots and enhance our knowledge of ecological interactions and seabird habitat use shaped by tidewater glaciers.","PeriodicalId":49684,"journal":{"name":"Polar Research","volume":"33 13","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138524264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modelled realistic daily variation in low winter sea-ice concentration over the Barents Sea amplifies Asian cold events 模拟的巴伦支海冬季海冰浓度低的真实日变化放大了亚洲的寒冷事件

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-11-02 DOI: 10.33265/polar.v41.7834

Shengni Duan, Zhina Jiang, Mingsheng Wen

{"title":"Modelled realistic daily variation in low winter sea-ice concentration over the Barents Sea amplifies Asian cold events","authors":"Shengni Duan, Zhina Jiang, Mingsheng Wen","doi":"10.33265/polar.v41.7834","DOIUrl":"https://doi.org/10.33265/polar.v41.7834","url":null,"abstract":"The boreal wintertime atmospheric responses, especially cold events over central Asia, to low sea-ice concentration (SIC) with and without realistic daily variation over the Barents Sea are explored with the Community Atmosphere Model version 4.0 (CAM4.0). The results show that the general atmospheric responses to approximately equal winter-mean Arctic sea-ice loss with a similar pattern but with climatological versus realistic daily variation are different. With the forcing of low SIC with climatological daily variation, Asian cold events become a little longer and stronger than in the control experiment; this mainly results from the enhancement of a 500-hPa Ural anticyclonic anomaly. However, the low SIC forcing that includes realistic daily variability greatly intensifies central Asian cold events and the cyclonic anomaly downstream of the Ural anticyclone. Further analysis reveals that Asian cold events are closely associated with Arctic deep warming at an intraseasonal time scale, which is also the strongest in the perturbed experiment forced by low SIC with realistic daily variation. This work provides a better understanding of the linkage between sea-ice variation over the Barents Sea and central Asian cold events, which may improve extreme weather prediction. It also implies that it is necessary to force air–sea coupling models and atmospheric models with realistic daily SIC in the study of the relationship between Arctic sea ice and mid-latitude cold events.","PeriodicalId":49684,"journal":{"name":"Polar Research","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46717386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multidisciplinary perspectives on living marine resources in the Arctic 北极海洋生物资源的多学科视角

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-10-20 DOI: 10.33265/polar.v41.7766

Sturla F. Kvamsdal, D. Dankel, Nils-Arne Ekerhovd, A. H. Hoel, A. Renner, A. Sandø, S. Steinshamn

{"title":"Multidisciplinary perspectives on living marine resources in the Arctic","authors":"Sturla F. Kvamsdal, D. Dankel, Nils-Arne Ekerhovd, A. H. Hoel, A. Renner, A. Sandø, S. Steinshamn","doi":"10.33265/polar.v41.7766","DOIUrl":"https://doi.org/10.33265/polar.v41.7766","url":null,"abstract":"Many areas in the Arctic are vulnerable to the impacts of climate change. We observe large-scale effects on physical, biological, economic and social parameters, including ice cover, species distributions, economic activity and regional governance frameworks. Arctic living marine resources are affected in various ways. A holistic understanding of these effects requires a multidisciplinary enterprise. We synthesize relevant research, from oceanography and ecology, via economics, to political science and international law. We find that multidisciplinary research can enhance our understanding and promote new questions and issues relating to impacts and outcomes of climate change in the Arctic. Such issues include recent insights on changing spawning migrations of the North-east Arctic cod stock that necessitates revisions of socioeconomic estimates of ecosystem wealth in the Barents Sea, better integrated prediction systems that require increased cooperation between experts on climate prediction and ecosystem modelling, and institutional complexities of Arctic governance that require enhanced coordination.","PeriodicalId":49684,"journal":{"name":"Polar Research","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48270003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The polar sciences journal: the past and future of a crucial research instrument 极地科学杂志：一种重要研究仪器的过去和未来

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-09-12 DOI: 10.33265/polar.v41.8883

Anna Gielas

引用次数: 0

Remote sensing, snow modelling, survey data and Indigenous Knowledge show how snow and sea-ice conditions affect Peary caribou (Rangifer tarandus pearyi) distribution and inter-island and island–mainland movements 遥感、雪建模、调查数据和土著知识显示了雪和海冰条件如何影响北美驯鹿(Rangifer tarandus pearyi)的分布以及岛屿间和岛屿与大陆之间的移动

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-09-02 DOI: 10.33265/polar.v41.7964

Coralie Gautier, A. Langlois, V. Sasseville, E. Neave, C. Johnson

{"title":"Remote sensing, snow modelling, survey data and Indigenous Knowledge show how snow and sea-ice conditions affect Peary caribou (Rangifer tarandus pearyi) distribution and inter-island and island–mainland movements","authors":"Coralie Gautier, A. Langlois, V. Sasseville, E. Neave, C. Johnson","doi":"10.33265/polar.v41.7964","DOIUrl":"https://doi.org/10.33265/polar.v41.7964","url":null,"abstract":"Accelerated warming of the Arctic has reduced sea ice and has increased the occurrence of winter extreme events like rain-on-snow and storms that impact snow-cover densification, affecting Peary caribou (Rangifer tarandus pearyi) seasonal movements and grazing conditions. We used caribou movements between Banks, Melville and Victoria islands and mainland Canada, documented from Indigenous Knowledge, to assess whether spatiotemporal trends in sea-ice anomalies (1983–2019) can be used as an indicator of caribou movement. We used the SNOWPACK model to evaluate how foraging conditions (as indexed by simulated snow properties) contribute to the prediction of caribou presence. Our results suggest that changes in sea-ice anomalies over time have impacted caribou crossings between islands: caribou no longer use areas with less sea ice whilst they continue to use areas with more sea ice. Our model evaluation shows that, when the simulated snow conditions are paired with other environmental variables, the ability of models to predict Peary caribou occurrence on land was enhanced across Banks and Melville islands. Overall, the land models suggest that caribou are more likely to occupy areas with lower density of snow accumulation and a majority of forb tundra with dwarf shrubs for Banks Island and cryptogam tundra, rush and grass for the Melville Island Complex. Our results suggest that future work monitoring changes in sea-ice and snow conditions will be important for understanding the impact of climate change on the distribution of Peary caribou in the western Arctic.","PeriodicalId":49684,"journal":{"name":"Polar Research","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2022-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43320914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review of John Møller: mirrored, portraits of Good Hope, by Inuuteq Storch (2021). Copenhagen: Rousse Roulette. 312 pp. ISBN 978-87-97324-20-2. 《约翰·默勒评论：美好希望的镜像肖像》，Inuteq Storch著（2021）。哥本哈根：RousseRoulette。312页，ISBN 978-87-97324-20-2。

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-08-12 DOI: 10.33265/polar.v41.8845

Anna Gielas

引用次数: 0

Polar Research turns 40 极地研究40岁

IF 1.9 4区地球科学

Polar Research Pub Date : 2022-08-10 DOI: 10.33265/polar.v41.8903

H. Goldman

引用次数: 0