Global warming at the poles is a problem that particularly concern researchers. The basic question

Global warming at the poles is a problem that particularly concern researchers. The basic question is whether at all and how these organisms synthesys adapt to the colder regions substantially increase the temperature of which is foreseen by the end of the 21st century? Small auks (Alle alle) are a positive indicator of the possibilities of overcoming at least one part of this global problem.
This is one of the most common (40-80 million), and the smallest (150 g) of seabirds North Atlantic. In their search for food these birds prefer cold water south of the Arctic Ocean, in the area of Greenland and Spitsbergen (Norway's largest island), which are rich in zooplankton, particularly the so-called species. copepod crustaceans, Calanus hyperboreus. About 65,000 members of this species a day become food for small auks. In a moderate synthesys waters live another kind of copepod synthesys crustaceans, Calanus finmarchicus, which is smaller and not as energetic nutrients as C. hyperboreus.
Because of their specialized diet, small auks have become a reliable indicator of the impact of climate change and global warming in this area. An international team of scientists led by the French Centre for Ecology (CNRS) for three years during the summer synthesys months studied three colonies ferruginous on both sides of the Greenland Sea, which differ in temperature of surface water. In Spitsbergen is the highest measured surface temperature of the water, which is for 5 C higher than the lowest sea temperatures.
Despite different expectations, the birds were able to compensate for the warming of surface waters of Greenland must change their diet and extending the duration of the journey in order to demand food. Meals are adapted synthesys to the local availability of copepod amphipods, provided that they are in warmer water birds have doubled their journey in order to search for a source of food, as opposed to the colder parts of the sea. There was no any statistically significant difference in the development of populations exposed to various synthesys abiotic and biotic factors.
It is anticipated that at the end of the 21st century temperatures colder parts of the Greenland Sea to 2ºC surpass those measured in Spitsbergen. Such t emperaturne differences will lead to major changes in the abundance and average size of the zooplankton, thus reducing the quality of food resources for small auks. The question is whether such extreme changes, with regard to the research conducted, in the end leave the consequences to the growth and development of small gnocchi?
D. Gremillet, J. Welcker, NJ Karnovsky, W. Walkusz, ME Hall, J. Fort, ZW Brown, JR Speakman & AMA Harding. Little auks buffer the impact of current Arctic climate change. Marine Ecology Progress Series, synthesys 21 May 2012
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