Microevolutionary Adjustments

Blackbird, thrush, Fink and star are a rarity in German corridors may soon. Instead, exotics such as Kaffernsegler or desert Bullfinch could dominate in the future native bird life. Blackbird, thrush, Fink and star are a rarity in German corridors may soon. Instead, exotics such as Kaffernsegler or desert Bullfinch could dominate in the future native bird life. Because since the beginning of the 20th century no less than 196 (about 45 percent) moved their breeding area of the 435 species of birds breeding in Europe further to the North or Northwest and at greater altitudes. Cause is global warming. Even if there were no measurements, alone the changing behaviour of birds could see the temperature rise\”, says Professor Peter Berthold, Director of the ornithological Institute of the Max Planck Institute for behavioral Physiology in Radolfzell. Many species are flocking this far in a relatively short time where habitats already to up to 1000 kilometres shifted some to the North.

Data, the Berthold from all over Europe gathered, indicate the new structure of types of. The Great Egret as reached in the Netherlands from Eastern Austria out. From the Mediterranean region, the Canary on the way made to England, Russia and Scandinavia. Cattle egrets nesting in the Netherlands, was once the southern of France their northernmost limit. At the same time classic winter refugees like starlings, Lapwings or black Redstart completely adjust the beginning in the autumn flight to Africa in ever greater numbers or take only short trips and spend the winter in Central Europe. 150 years ago, the Blackbird also belonged to the winter refugees.

Today, only a part on a shortened trip to the Mediterranean embarks, most remain here in the winter. Only partially feeding songbirds such as Robin, chaffinch, Wren and Kingfisher becoming ortstreuen stand birds. Others turn suddenly entirely new train directions. Thirty years ago, monk Warblers stray only rarely in the British Isles.