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Type of publication: Tezės Clarivate Analytics Web of Science ar/ir Scopus / Theses in Clarivate Analytics Web of Science and/or Scopus DB (T1a)
Field of Science: Biologija / Biology (N010)
Author(s): Butkauskas, Dalius;Sruoga, Aniolas;Švažas, Saulius;Paulauskas, Algimantas
Title: Genetic variability among Long-tailed Ducks wintering in the Baltic Sea
Is part of: Journal of ornithology. DE : Springer, Vol. 147, suppl. 1 (2006)
Extent: p. 144-144
Date: 2006
Note: 24th International Ornithological Congress, Hamburg, Germany, 13-19 August 2006
Keywords: Long-tailed Ducks;Baltic Sea
Abstract: The majority of Long-tailed Ducks (Clangula hyemalis) breeding in the Western Palearctic winter in the Baltic Sea. Little is yet known about population structure in wintering Long-tailed Ducks or their site fidelity to certain wintering areas, issues important in their conservation and management. Accordingly, we set out to territory-specific patterns of brood reduction, more chicks were fledged from territories with higher densities of secondary prey ('forest territories') than on those where secondary prey were less abundant ('mire territories'). The number of chicks produced by goshawks is thus habitat-dependent. By simulations that set the relative proportions of territories of different quality in different combinations in the landscape, we show that such territoryspecific patterns of reproductive success largely explain earlier reports of a weakening connection between main prey availability and goshawk reproductive success nationwide
Affiliation(s): Vilniaus universiteto Ekologijos institutas,
Vilniaus universiteto Ekologijos institutas,
Vilniaus universiteto Ekologijos institutas,
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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