9 June 2010

The flight of Jæren- Redlist sustained compendium of little things.

"For eighty millions years, birds have ruled the skies, seas and earth. Each spring they fly long distances. Each fall they fly the same routes back. The story of migrating birds is the story of a promise; the promise to return"
Movie: Wind Migration

The natural diversity is made up of all the world's life forms and their habitats. This includes biological processes and ecological functions at different levels. Many species and habitats is now in danger of disappearing forever. Physical interventions and changes in land use is considered the main couse. The tendency is desired areas drained and filled, mono-cultured for a better and faster crops to be developed. It allows the bird's natural areas to shrink and changes to quikley for them to be able to adapt.
Some species related to cultivated agriculture return because of changing in farming and a more intensive farming. Suggested at the wrong time is an example. Modern forestry with the removal of old dead trees, and this is negative for some forest living birds, like woodpeckers. Birds can adapt to new areas, but the story in the agricultural landscape shows that the breeding success goes down, the species will be fewer and the number of birds will be less.

Norway has committed itself to halt the loss of biological diversety by 2010. Maby Jæren can be the first step in this direction.

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