Processed airborne radio-echo sounding data from the POLARGAP survey covering the South Pole, and Foundation and Recovery Glaciers, East Antarctica (2015/2016)Fausto Ferraccioli, Rene Forsberg, Kenichi Matsuoka, Arne Olesen, Tom Jordan, Hugh Corr, Carl Robinson & Jack Kohler
During the austral summer of 2015/16, a major international collaboration funded by the European Space Agency (ESA) and with in-kind contribution from the British Antarctic Survey, the Technical University of Denmark (DTU), the Norwegian Polar Institute (NPI) and the US National Science Foundation (NSF), acquired ~38,000 line km of aerogeophysical data. The primary objective of the POLARGAP campaign was to carry out an airborne gravity survey covering the southern polar gap of the ESA gravity...
Moving out of town? The status of alien plants in high-Arctic Svalbard, and a method for monitoring of alien flora in high-risk, polar environmentsJesamine Bartlett, Kristine Bakke-Westergaard, Ingrid Paulsen, Ronja Wedegartner, Florian Wilken & Virve Ravolainen
Rising human activity in the Arctic, combined with a warming climate, increases the probability of the introduction and establishment of alien plant species. While settlements are known hotspots for persistent populations, little is known about colonization of particularly susceptible natural habitats. Systematic monitoring is lacking and available survey methods vary greatly. Here we present the most comprehensive survey of alien vascular plant species in the high-Arctic archipelago of Svalbard to date, aimed at: i) providing...
Climate change impacts on seabirds and marine mammals: the importance of study duration, thermal tolerance and generation timeFlorian Orgeret, Andréa Thiebault, Kit M. Kovacs, Christian Lydersen, Mark A. Hindell, Sarah Ann Thompson, William J. Sydeman & Pierre A. Pistorius
Understanding climate change impacts on top predators is fundamental to marine biodiversity conservation, due to their increasingly threatened populations and their importance in marine ecosystems. We conducted a systematic review of the effects of climate change (prolonged, directional change) and climate variability on seabirds and marine mammals. We extracted data from 484 studies (4808 published studies were reviewed), comprising 2215 observations on demography, phenology, distribution, diet, behaviour, body condition and physiology. The likelihood of concluding...
Current profiles and hydrographic data collected by the Norwegian Polar Institute during the KV Svalbard cruise in 2007 in the Fram Strait.
Loss of Arctic sea ice due to climate change is predicted to reduce both genetic diversity and gene flow in ice-dependent species, with potential negative consequences for their long-term viability. Here, we tested for the population-genetic impacts of reduced sea ice cover on the polar bear (Ursus maritimus) sampled across two decades (1995–2016) from the Svalbard Archipelago, Norway, an area that is affected by rapid sea ice loss in the Arctic Barents Sea. We analysed...
GPS and Time-Depth Recorder tracking data of chinstrap penguins (Pygoscelis antarcticus) breeding at the South Orkney Islands, from 2011 to 2016Philip Trathan, Andrew Lowther & Fabrizio Manco
This dataset captures information from GPS and Time-Depth Recorder (TDR) tracking of 221 chinstrap penguins from 4 sites at the South Orkney Islands (Cape Geddes at Laurie Island, Powell Island, Monroe Island and Signy Island). Monitoring was carried out during incubation and brood between the months of December and February from 2011 to 2016. GPS data are available at 4 minute intervals whilst birds are at the sea surface and dive data every second. Tags...
Processed bed elevation picks from the POLARGAP radar survey across the Pensacola-Pole Basin (2015/2016)Hugh Corr, Fausto Ferraccioli, Rene Forsberg, Tom Jordan, Jack Kohler, Kenichi Matsuoka, Arne Olesen & Carl Robinson
This dataset contains bed and surface elevation picks derived from airborne radar collected during the POLARGAP 2015/16 project funded by the European Space Agency (ESA) and with in-kind contribution from the British Antarctic Survey, the Technical University of Denmark (DTU), the Norwegian Polar Institute (NPI) and the US National Science Foundation (NSF). This collaborative project collected ~38,000 line-km of new aerogeophysical data using the 150MHz PASIN radar echo sounding system (Corr et al., 2007) deployed...
Influence of past climate change on phylogeography and demographic history of narwhals, Monodon monocerosMarie Louis, Mikkel Skovrind, Jose Alfredo Samaniego Castruita, Cristina Garilao, Kristin Kaschner, Shyam Gopalakrishnan, James Haile, Christian Lydersen, Kit Kovacs, Eva Garde, Mads Peter Heide-Jørgensen, Lianne Postma, Steve Ferguson, Eske Willerslev & Eline Lorenzen
The Arctic is warming at an unprecedented rate, with unknown consequences for endemic fauna. However, Earth has experienced severe climatic oscillations in the past, and understanding how species responded to them might provide insight into their resilience to near-future climatic predictions. Little is known about the responses of Arctic marine mammals to past climatic shifts, but narwhals (Monodon monoceros) are considered one of the endemic Arctic species most vulnerable to environmental change. Here, we analyze...
To improve understanding and management of the consequences of current rapid environmental change, ecologists advocate using long-term monitoring data series to generate iterative near-term predictions of ecosystem responses. This approach allows scientific evidence to increase rapidly and management strategies to be tailored simultaneously. Iterative near-term forecasting may therefore be particularly useful for adaptive monitoring of ecosystems subjected to rapid climate change. Here, we show how to implement near-term forecasting in the case of a harvested...
Capture-recapture dataset of Svalbard voles (1990-2007) with trap locations and rain-on-snow measurementsDominique Fauteux, Audun Stien, Nigel G. Yoccoz, Eva Fuglei & Rolf A. Ims
Ecologists are still puzzled by the diverse population dynamics of herbivorous small mammals that range from high-amplitude, multi-annual cycles to stable dynamics. Theory predicts that this diversity results from combinations of climatic seasonality, weather stochasticity and density-dependent food web interactions. The almost ubiquitous 3-5-yr cycles in boreal and arctic climates may theoretically result from bottom-up (plant-herbivore) and top-down (predator-prey) interactions. Assessing empirically the roles of such interactions, and how they are influenced by environmental stochasticity,...
Processed airborne radio-echo sounding data from the ICEGRAV survey covering the Recovery Catchment and interior Dronning Maud Land, East Antarctica (2012/2013)Fausto Ferraccioli, Hugh Corr, Tom Jordan, Rene Forsberg, Kenichi Matsuoka, Anja Diez, Arne Olesen, Maria Ghidella, Andres Zakrajsek, Carl Robinson & Owen King
During the austral summer of 2012/13 a major international collaboration between Danish, US, UK, Norwegian and Argentinian scientists collected ~29,000 line km (equivalent to 464,317 km2) of aerogeophysical data over 132 hours of flight time and covering the previously poorly surveyed Recovery Glacier and Recovery Subglacial Lakes, as well as the area of Coats Land inboard from Halley VI using airborne survey systems mounted in Twin Otter aircraft. Our aircraft was equipped with dual-frequency carrier-phase...
Current profiles and hydrographic data collected by the Norwegian Polar Institute during the KV Svalbard cruise in 2008 in the Fram Strait.
Fine-scale spatial segregation in a pelagic seabird driven by differential use of tidewater glacier frontsPhilip Bertrand, Joël Bêty, Nigel Gilles Yoccoz, Marie-Josée Fortin, Hallvard Strøm, Harald Steen, Jack Kohler, Stephanie M. Harris, Samantha C. Patrick, Olivier Chastel, Pierre Blévin, Haakon Hop, Geir Moholdt, Joséphine Maton & Sébastien Descamps
In colonially breeding marine predators, individual movements and colonial segregation are influenced by seascape characteristics. Tidewater glacier fronts are important features of the Arctic seascape and are often described as foraging hotspots. Albeit their documented importance for wildlife, little is known about their structuring effect on arctic predator movements and space use. In this study, we tested the hypothesis that tidewater glacier fronts can influence marine bird foraging patterns and drive spatial segregation among adjacent...
Norwegian Polar Institute13
The Arctic University of Norway4
British Antarctic Survey4
Technical University of Denmark3
Norwegian Meteorological Institute2
Anglia Ruskin University1
Centre d'Etudes Biologiques de Chizé1
University of Tasmania1
IT University of Copenhagen1