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Bark beetles have caused a warming of the climate in Canada in 21 th century- VIDEO PDF Print E-mail
Monday, 26 November 2012 07:32

In the Nature Geoscience magazine appeared an article of the group of ecologists from the University of California at Berkeley, USA, under the guidance of Holly Maness, that the sharp increase in the number of bark beetles Dendroctonus ponderosae, which destroyed much of the forest in Western Canada - was the major cause of sudden warming in western Canada in the 21 th century. According to Holly Maness, in recent years, forests in British Columbia and other provinces in Western Canada seen a massive attack by bark beetles Dendroctonus ponderosae, which have ceased to fulfill its role nurses of forest and began to destroy healthy trees with old trees. With the help of satellite images, which were obtained by climatic MODIS satellite from 2000 to 2010, it was found, that the highest temperatures during the day are observed in those parts of the forest, where a many trees were killed by bark beetles Dendroctonus ponderosae, which generally has to reduce emissions of steam by 19% and increased heating of the soil by 8% on those parts of the forest. In a more global scale, this resulted in an increase of average temperatures in western Canada by one degree of Celsius, THE VIDEO:

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