摘要
于 1997、1998年 ,对山西省芦芽山自然保护区内岩鸽的繁殖生态和种群数量进行了观察。岩鸽间或有一年繁殖两窝的 ,巢多营建于悬崖峭壁的缝隙或洞穴中 ,有利用旧巢的习性。窝卵数多为 2枚 ,卵重平均 15 .6 7( 15 .0～ 16 .4) g。雌雄鸽均参加孵卵 ,孵化期 18d,孵化率 10 0 %,离巢率 87.5 %,巢内育雏 17d～ 19d,种群密度为15 .79只 /
In 1997 and 1998,the authors studied the breeding habits and population dynamics of Blue Hill Pigeon(Columba rupestris) in Luyashan Nature Reserve. A few of the birds breed twice a year. Their nests are built in the hole of sheer precipice and over hanging rocks.This bird has a habit to use old nests.A cluth consists of 2 eggs and each weighs 15.67(15.0～16.4) g. The incubation lasts 18 days and rate of batchability is 100%. The period of young birds in nests is 17～19 days and survival rate is 87.5%.The population density is 15.79 individuals/km.
出处
《山西林业科技》
2000年第1期40-43,共4页
Shanxi Forestry Science and Technology
