The spiders living in territory of Arctic regions, can suffer from global warming , and that can be reflected in all food chain of region because this kind of arthropods is food for birds. Michael Nickel , from Stuttgart’s university –Germany, has come to such conclusions, after researches of the Arctic spiders during the program “International polar year†2007-2008,financed by United Nations .
The Arctic spiders live in territory of all Arctic regions. Most part of the life they spend under a snow. Their largest representatives have length ( from a tip of one leg up to a tip of opposite leg ) approximately 2,5 cm.
In conditions of a cold climate and a small amount of a feed , for grow up of the individual it is required about seven years. In the same time, the spiders living in southern regions, need for growing up time period of two years.
According to Nickel, at climate warming and melting snows the Arctic spiders can develop more quickly. However, in long-term perspective, northern regions will experience invasion of spiders from the south, and that can cause the essential loss of a population of their northern colleagues. Nevertheless, Nickel considers premature to speak about a final outcome of hypothetical rivalry. The scientist has noted necessity for reception of additional financing for the organization of field researches.
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