AVIS-IBIS

Birds of Indian Subcontinent

Direction of movements in Hungarian Barn Owls (Tyto alba): gene flow and barriers

Publication Type:Journal Article
Year of Publication:2003
Authors:Mátics, R
Journal:Diversity and Distributions
Volume:9
Issue:4
Date Published:2003
ISBN Number:1472-4642
Keywords:barn owl, dispersal direction, emigration, gene flow, immigration, Tyto, Tyto alba, Tytonidae
Abstract:Abstract. An analysis of dispersal directions of the barn owl showed that all individuals immigrating to Hungary came from W-NW-N. It was shown that immigrating owls breed in Hungary. There is no prevailing direction in emigration from Hungary. The time of fledging does not influence the direction of movement and there is no difference between sexes concerning dispersal direction. The percentages of emigrating owls is greater than that of immigrating ones. These percentages did not differ in relation to most of the analysed countries (Germany, Italy, Switzerland, Poland and countries of the former Yugoslavia and Czechoslovakia) but it differed in relation to Austria. The degree and direction of introgression into and from the transition zone and the recent distribution of the phenotypes are discussed based on the comparative analysis of published European data. These suggest that the subspecies Tyto alba alba and Tyto alba guttata disappear by introgression, to form a phenotypically very variable species.
URL:http://dx.doi.org/10.1046/j.1472-4642.2003.00018.x
Short Title:Diversity and Distributions
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