55 surface water samples were collected from an in-line pumping system for determination of concentrations of total organic carbon (TOC), dissolved organic carbon (DOC) and dissolved organic nitrogen (DON), nutrients, and dissolved...
Left: Preliminary location of elevated DGM in surface water during leg 1.Right: Preliminary distribution of volatile mercury along a vertical section of the Arctic Ocean. Aim It has been elucidated that high levels of neurotoxic mercury (Hg) in...
Introduction and experimental rationale Recent and persistent changes in climate and human land use in Beringia are amongst the most dramatic on the globe. Significant stores of global soil organic carbon exist in this region, and...
Methane (% saturation, circles and black line) and Sea Surface Temperature (°C, grey line) against latitude. These data were collected along the Beringia 2005 leg 1 cruise track between July 14th and July 16th in Baffin Bay. The Marginal Ice Zone...
Concentrations (mg m-3) of chlorophyll a pigment and phaeophytine pigment at the station 07 September (Lomonosov Ridge). The aim The arctic pelagic ecosystem has historically been used as an example of the short and simple classical food chain....
Near Bering Strait seabird abundance reached peak levels and Oden sailed through huge flocks of short-tailed shearwater Puffinus tenuirostris, consisting of several tens of thousands of birds. Photo: Thomas Alerstam Background and objectives...
Vilyuchinskaya Sopka Volcano. Photo: Kjell Danell. Kamchatka is a peninsula of approximately the same size as the Scandinavian Peninsula. Although far away from each other on the northern hemisphere, both areas have northern connections to the...
A brown bear female strolls with her cub along the river at site 1. Photo: Bodil Elmhagen. Background The treeless mountain tundra found along the Swedish-Norwegian border in Scandinavia constitutes a southwestern extension of the Russian arctic...
Buff-bellied Pipit, Anthus rubescens. Photo: Peter Mortensen. The main objective of our participation in Beringia 2005 was to secure from the biological research carried out during the expedition suitable voucher specimens to be incorporated into...
A typical clearwater, shallow Arctic lake suffering from very high UV radiation. Photo: L-A. Hansson. The environmental conditions for freshwater organisms in the Arctic regions are harsh, with short ice-free periods and low nutrient...
The arctic Woolly bear Gynaephora rossii feeding on a willow leaf. Photo: Joakim Hjältén. Background and aim Not only has Beringia provided a landbridge connecting Alaska and Siberia, but it was also a glacial refugium during the last glaciation....
Wet tundra near Atqasuk, Alaska. Photo: Åsa Lindgren. In an arctic environment, abiotic factors such as a short growing season, low temperatures, low nutrient availability and high wind velocity often have a dominating influence on plant...
The heaviest juvenile Sharp-tailed Sandpiper ever recorded in Alaska, trapped on 26 September. This bird had most likely more than doubled its mass by putting on fat. Photo: Åke Lindström. The aim The Arctic summer offers huge and...
Björn Olsen with a Grey Phalarope. Photo: Jonas Bonnedahl. The outbreak of influenza in Asia – along with the recent emergence of other highprofile zoonotic diseases such as West Nile virus and severe acute respiratory syndrome (SARS) – have...
Polarimeter measurements by Gabor Horváth. Photo: Susanne Åkesson. The aim Migratory birds are able to use stellar, sunset and geomagnetic information for orientation (Able 1980, Wiltschko and Wiltschko 1995). Young migratory songbirds are thought...
A pika, Ochotona hyberborea. Photo: Love Dalén Scientific background Species with sympatric geographical distributions can be expected to interact with each other in a number of ways, for example through competition, parasitism or predation. This...
Coring lake sediments at Esso, central Kamchatka. Photo: Elinor Andrén. Background and aims Terrestrial vegetation at high northern latitudes is an important component of the global climate system. The changing configuration of northern biomes,...
Dryas incisa Juz., Karaginsky Island. The species has an amphiberingian distribution with occurrences in both eastern Siberia and Alaska. Photo: Bente Eriksen Beringia – a refugium for arctic and boreal biota? The present-day arctic flora...
Map showing the two icebreakers’ (Oden and Healy) transect of the Arctic Ocean. The sediment cores taken from Healy are shown as stars, CTD cast as black dots and dirty ice sampling stations as red dots. Introduction The third leg of the Beringia...
Project aims The surface of the Earth is made of rigid plates which have been moving through time and are still in motion today. Both modern and ancient plate motions are responsible for creating the Arctic Ocean as we know it. However the...
