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Tag: Biodiversity

Trends in speakers of Arctic indigenous languages (1989-2006)
Language not only communicates, it defines culture, nature, history, humanity, and ancestry. The indigenous languages of the Arctic have been formed and shaped in close contact with their environment. They are a valuable...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Simulated projections for Polar cod distribution with global warming
Polar cod (Boreogadus saida) was found to be sensitive to the warming scenarios and the model predicted that it would be extirpated in most of its range even under the milder warming scenario. This is due to its occurren...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Arctic terrestrial species trends 1970-2005 (ASTI)
Dramatic changes, such as sea ice loss, are projected to occur in Arctic ecosystems over the next century. Understanding how the Arctic’s living resources, including its vertebrate species, are responding to these change...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Arctic biodiversity - pressures and impacts
The Arctic plays host to a vast array of biodiversity, including many globally significant populations. Included among these are more than half of the world´s shorebird species, 80% of the global goose populations, sever...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Arctic genetic trends - lemming in Arctic Russia
Nucleotide diversity estimates based on the complete sequences of mitochondrial genome in the collared lemming indicate how past climate has structured the genetic component of biodiversity. Lower diversity in regions ...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Distribution and spawning areas of four fish species
Distribution and spawning areas of arctic cod, polar cod, herring and capelin in the Barents Sea region. The Barents region is in the Arctic and covers the area of Western Russia and the northern areas of Finland, Sweden...
21 May 2010 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Simulated projections for Polar cod distribution with global warming
Polar cod (Boreogadus saida) was found to be sensitive to the warming scenarios and the model predicted that it would be extirpated in most of its range even under the milder warming scenario. This is due to its occurren...
01 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
Distribution and trends of wild Rangifer in the Arctic
Distribution and observed trends of wild Rangifer populations throughout the circumpolar Arctic (from The Circum Arctic Rangifer Monitoring and Assessment Network, CARMA). Note: Wild boreal forest reindeer have not been ...
01 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
Invasive species response to climate change - Hydrilla spp, current and 2080 habitat suitability
As climate change alters Arctic ecosystems and enables greater human activity, biological invasions are likely to increase in the Arctic. To some extent, Arctic terrestrial ecosystems may be predisposed to invasion becau...
01 Nov 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
Distribution and current trend of polar bear subpopulations throughout the circumpolar Arctic
Polar bears occur in 19 relatively discrete subpopulations with an estimated worldwide abundance of 20,000– 25,000 animals. Our knowledge of the status and trend of each subpopulation varies due to availability, reliabil...
01 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
Sturgeons distribution in the Black Sea
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaborat...
07 Nov 2010 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Distribution of polar bear populations in the Arctic
Worldwide there are thought to be 22,000-27,000 polar bears (Ursus maritimus)in 20 separate populations. They can be found in the United States, Canada, Russia, Greenland and on the Arctic islands of Norway.
21 May 2010 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Distribution of coral, mangrove and seagrass diversity
Similar to corals, the region of greatest mangrove diversity is in Southeast Asia, particularly around the Indonesian Archipelago (Burke et al., 2001). There are three distinct areas of seagrass diversity in the Pacific ...
21 May 2010 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Turbot distribution in the Black Sea
Illustration in a set of graphics prepared for a pilot assessment report on the Black Sea drainage basin, for the UNEP Global Impact on Waters Assessment (GIWA). All data and information were prepared in close collaborat...
07 Nov 2010 - by Philippe Rekacewicz, UNEP/GRID-Arendal
Distribution of common eider, breeding and wintering ranges in the Arctic
The common eider, Somateria mollissima, has a circumpolar distribution breeding mainly on small islands in Arctic and boreal marine areas in Alaska (Bering Sea region), Canada, Greenland, Iceland, western Europe, and the...
01 Nov 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
Arctic char species complex, distribution map
The Arctic char species complex, sensu stricto, represent a key component of the marine and freshwater ecosystems of the north. Chars are stressed by factors such as fisheries, climate change and pollutants. We are possi...
01 Nov 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
Wolverine population in the Arctic
Wolverines occur in various distinct populations across the circumpolar region, ranging from Fennoscandia and the Russian Federation, Mongolia and China, through to Alaska, Canada, and some of the northernmost states of ...
01 Nov 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Towns and industrial activities in the Arctic
The Arctic is home to approximately 4 million people, with the share of indigenous and non-indigenous populations varying widely between the Arctic states. Larger settlements are usually located in resource-strategic pos...
13 Oct 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Red king crab native and invasive distribution
The red king crab is native to the Okhotsk and Japan Seas, the Bering Sea, and the northern Pacific Ocean, where it is an important economic resource. In Alaskan waters, red king crabs have historically been the second m...
13 Oct 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
Compensation for sheep losses in Norway
Minimizing conflicts with livestock husbandry is the most important challenge for the conservation of wolverines. In Fennoscandia, few areas exist within the wolverines’ range where there is no conflict potential with sh...
01 Nov 2010 - by Riccardo Pravettoni, UNEP/GRID-Arendal
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