Variability of the length of the white area on the outermost quill feathers of the great tit from two cities in the Middle Ural has been investigated. Dynamics of the average length of the white area in the birds from the city of Asbest reproduced the dynamics observed in the city of Yekaterinburg with a one-year lag in the females and a two-year lag in the males. Phenotypic changes in the great tit population did not occur simultaneously in the whole population, but rather moved along the living range with a certain velocity (50–60 km/year for the females and 25–30 km/year for the males). The results obtained are discussed in view of the concepts of population biology.
Russian Journal of Ecology – Springer Journals
Published: May 24, 2017
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