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Tag: Conservation

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 ...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Location of datasets in the Arctic Species Trend Index (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
Red Knot, distribution, breeding areas and migratory routes, by subspecies
The red knot, Calidris canutus, is an example of a longdistance migratory shorebird. It has been the subject of extensive research worldwide including studies on its breeding cycle, winter ecology, and stopover sites. It...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
The Arctic and the World - migration paths
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 conservation area (CAFF), topographic map, ABA version (2010)
The Conservation of Arctic Flora and Fauna is a working group under the Arctic Council, for the countries of Russia, Denmark, USA, Canada, Sweden, Iceland, Norway and Finland and indigenous peoples. Monitoring, assessmen...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Advancement of phenological events in high-arctic Greenland
It is clear from lower latitudes that phenological trends are linked to temperature changes and experimental warming also results in earlier plant phenology. Yet, in Arctic and alpine ecosystems, the melting of the winte...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Reindeer herding - vegetation impacts (Norway and Finland)
A very high-resolution false color Ikonos-2 satellite image of Jauristunturit in the border zone shared by Norway and Finland. Image acquired 28 June 2001. The main vegetation type is lichen dominated tundra heath with d...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Wild food harvests in Alaska by area, 1990s
The harvest of natural resources is a key feature of traditional lifestyles and economies throughout the Arctic, and a continuing reliance on it as a mainstay of indigenous existence in the north is evident. In Alaska, w...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Disappearing Arctic lakes - examples in Siberian lakes, 1973 to 1997
The Arctic contains a variety of types of lakes but overall, it is thermokarst lakes and ponds that are the most abundant and productive aquatic ecosystems in the Arctic. They are found extensively in the lowland regions...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Murre colonies in the Arctic
The two species of murres (known as guillemots in Europe), the thick-billed murre, Uria lomvia, and common murre, Uria aalge, both have circumpolar distributions, breeding in Arctic, sub-Arctic, and temperate seas from C...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
Trends in Arctic vegetation productivity 1982-2005 (Greening of the Arctic)
Arctic vegetation has undergone enormous change in the past, most notably in response to the glacial and interglacial periods of the Quaternary. Data from many sources and at several scales suggest that recent climate ch...
17 Mar 2010 - by Hugo Ahlenius, GRID-Arendal & CAFF
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 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
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
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
Wild caribou (rangifer) herds and areas of reindeer husbandry
Distribution and observed trends of wild Rangifer populations throughout the circumpolar Arctic (from The Circum Arctic Rangifer Monitoring and Assessment Network, CARMA). Currently wild reindeer and caribou have decline...
01 Oct 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
The Arctic and the World - migration paths
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...
01 May 2010 - by Hugo Ahlenius, UNEP/GRID-Arendal
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