The Arctic Ocean is the least known of all the ocean basins. To date oceanographic and geophysical work has been carried out from ice islands, icebreakers, aeroplanes, and satellites. Each ...
The environments of our planet, from topography to climate, are dictated by the movement of lithospheric plates. The relative motion associated with these large, rigid pieces of ...
The “Eurasian Ice Sheets” project is mainly financed by the EU and is also assisted by the Swedish Natural Science Research Council (NFR) and the Royal Swedish Academy of Sciences. It works under the umbrella of the ...
In order to understand the climatic links between oceans, atmosphere and continents we need improved knowledge concerning the timing and extent of Late ...
Exploitation of renewable and non-renewable natural resources in the polar regions is among the most ancient of human motives for ...
... may be especially true for low productive areas, where ecosystems are usually less complex and characterized by a relatively low diversity of both plants and herbivores. A typical example of such an ecosystem is the Arctic tundra. Here ...
Arctic lemmings show dramatic fluctuations in their population dynamics. Some years densities can be very high followed by a sharp decline and crash ...
In the Arctic, willows are often dominant in the terrestrial vegetation. They play important ecological roles by being food plants for many herbivores, adding organic material to the soil ...
... vascular forage plants takes place, and the considerably longer one when only perennial living plants and dead plant material are available as forage. This naturally becomes more extreme and demanding for the animals, the further north one ...
Most small mammals are for obvious antipredator reasons cryptically coloured. The Norwegian lemming (Lemmus lemmus) is an exception to this rule in that it is ...
Different species of grasses and sedges are common plants in the tundra and dominant in many of the most widespread vegetation types. These species (collectively called graminoids) are also important food plants for same of the most abundant ...
This is a study of the relationship between predators and their prey. We shall focus on the Arctic fox Alopex lagopus, the Arctic skua Stercorarius ...
An important goal in ecology is to understand the mechanisms that permit fluctuations in population size yet prevent extinction at low densities. Nevertheless, understanding of how ...
Understanding the processes that maintain the distribution and abundance of different species has been an issue of fundamental importance for biologists ...
Compared to biomes in more southerly latitudes, there is little fauna and flora diversity on the tundra. Furthermore, the structure of ecological communities is ...
The research plan for this project covered a comprehensive description of site variability at different locations in the Arctic with special emphasis on soils and soil microbes. These should be used as a link ...
... of organisms. Until recently almost all knowledge about genetic diversity has come from species living in the temperate zone. This is unfortunate since Arctic organisms for several reasons are likely to have different short-term and ...
All terrestrial ecosystems have a high, and largely unknown, species richness of fungi. It is estimated that 1.5 million species of fungi exist on earth. Fungi are the most species rich group of organisms after insects. ...
... for vascular plants and probably also for other groups – as a ”sink”, recruited almost entirely by immigration. Some researchers (see Böcher et al.) even ask for evidence of in situ evolution for all truly Arctic species in the ...
Most plant species in the Arctic pose no immediate problem for the taxonomist. They are easy to determine and well-delimited from their nearest relatives. The opposite ...
