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The role of forest age, habitat quality, food resources and weather conditions for Tawny Owl Strix aluco populations

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Wiacek J., Polak M., Grzywaczewski G.

Polish Journal of Environmental Studies

2010

tom 19

nr 5

The main goal of this study was to determine the reason for the significant increase of the tawny owl Strix aluco population in Kozłówka Forest near Lubartów (51°30' N, 22°35' E) in eastern Poland. Since 1990, this forest complex has been part of Kozłowiecki Landscape Park. Our research was conducted using standard playback method on a sample plot covering 50 km2. Each year in March and April 1990-91 and 2007-09, three counts with vocal stimulation were performed on the study plot. Between 1991 and 2009, a significant increase in the density of the tawny owl population was observed from 2.4 pairs/10 km2 to 4.6 pairs/10 km2. We discuss how habitat quality, food availability, and weather conditions can explain this phenomenon.

Ograniczanie wyników

1 Polish Journal of Environmental Studies

1 Grzywaczewski G.

1 Polak M.

1 Wiacek J.

1 2010

Wyniki wyszukiwania

The role of forest age, habitat quality, food resources and weather conditions for Tawny Owl Strix aluco populations