黄眉柳莺的人工巢箱利用率及对落叶松鞘蛾的防治效果

Nesting in Artificial Nest Box by Yellow-browed Warbler and its Control Effect on Coleophora dahurica

2000-2012年间在设置人工巢箱条件下,对内蒙古甘河林业局的黄眉柳莺繁殖生态进行了研究,收集了窝卵数、占巢率及对落叶松鞘蛾的防治效果等。统计分析表明：黄眉柳莺每年5月初返迁占巢,5月下旬产卵,窝卵数5-8枚,卵淡白色,具赤青色斑纹,且钝端密集。卵长径（14.75±0.56）mm,短径（11.78±0.59）mm。育雏期15-18 d,锥鸟存活率93.98%,建立了占巢率与落叶松鞘蛾虫口密度间、占巢率与窝卵数之间的一元关系式,黄眉柳莺人工巢箱防治区平均防治效果达到48.95%。

I studied the use of man-made nest boxes by Yellow-browed Warbler（Phylloscopus inornatus）and their breeding habits,including clutch size and nesting rate,and warbler control effects on Coleophora dahurica in Ganhe Forestry Bureau of Inner Mongolia from 2000 to 2012.Yellow-browed Warbler returned to nest in early May every year and laid eggs in late May.Clutch size was typically 5-8 eggs.Eggs were white with red and blue stripes or markings that were more abundant on the blunt end.The major axis of eggs measured 14.75 ±0.56） mm,and the minor axis measured（11.78 ±0.59） mm.The incubation period was 15-18 days and nestling survival rate was 94%.The average control effect on Coleophora dahurica reached 49%in areas with artificial nest boxes.