Биология размножения юрка (Fringilla montifringilla L.) на Среднем Енисее

Архипов, В.Ю.

Автор: Архипов В.Ю.
Журнал: Бюллетень Московского общества испытателей природы. Отдел биологический
Том: 110
Номер: 2
Год издания: 2005
Издательство: Изд-во Моск. ун-та
Местоположение издательства: М.
Первая страница: 54
Последняя страница: 58
Аннотация: BREEDING BIOLOGY OF BRAMBLING (FRINGILLA MONTIFRINGILLA L.) IN TAIGA OF THE MIDDLE YENISEI. Vladimir Yu. Arkhipov Summary The breeding biology of the Brambling was studied during 1994–1997 in the floodplain forest of the Yenisei River (Mirnoye field station, Central Siberia, 62° 20´N, and 89° 00´E). In the study area Brambling occurs in a high density of 68 breeding pairs per 1 km2 (range: 53–78 over four years). In total 42 nests were found, and all these nests were located on trees at 2 – 12, mean 4.5 meters above the ground. Eggs were laid from late May to early July with two peaks occurring in mid-June and early July. Two of 23 colour-ringed pairs managed to raise two successive broods in one season. Average clutch size was 5.96 eggs (SE ± 0.23, range 4 – 8). Three of 17 colour-ringed males were proved to be bigynous. None of 55 breeding adults and 85 nestlings ringed during the four years of studies was recorded back to the study area in later years. Thus, neither breeding site tenacity nor philopatry was recorded.
Добавил в систему: Архипов Владимир Юрьевич

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Биология размножения юрка (Fringilla montifringilla L.) на Среднем Енисеестатья

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