Demographic and energetic parameters of blackbird Turdus merula L.

Birtsas P., Sokos C., Papavasiliou A., Giannakou M. 2011. Demographic and energetic parameters of blackbird Turdus merula L. in an area of Central Greece. XIIIth Congress of the International Union of Game Biologists. Barcelona, Spain, 5–9/9/2011. Extended Abstracts, p. 73–75.

Abstract

240 blackbirds (Turdus merula L.) were collected from a Mediterranean ecosystem. More females were captured during afternoon hours and the total sex ratio of 105 males and 135 females slightly differs from the ratio of 1:1. The sex ratio did not differ seasonally. Body condition index, total body weight and stomach weight were not influenced by sex or hunting hours, but did increase significantly when temperature decreased and in February. Heart weight was higher in males than females.

Κey words: bird migration, demography, physiology, fat deposition

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