, Volume 137, Issue 1, pp 1-33

Dismigration und Brutarealexpansion der TürkentaubeStreptopelia decaocto

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The range extension of the Collared Dove to Europe began in the 1930s, when the population in the Balkans and Western Turkey was very low. This is a typical situation for genetic drift, which appears to have favoured a higher frequency of dispersal to the northwest. The interbreeding of individuals colonising areas northwest of the original area further increased the preference for northwestern dispersal and resulted in greater dispersal distances. However, these individuals were eliminated when the North Sea and the Atlantic Ocean were reached. The recovery of ringed birds has shown that dispersal distances have significantly decreased in Europe since the 1970s and that there has been no significant preference for dispersal direction since the period of range extension.