摘要
对栖息在内蒙古图牧吉自然保护区的大鸨繁殖期种群数量动态和食性进行了分析研究.结果表明:大鸨每年3月初4月底迁来图牧吉,10月下旬离去,停留期长达7个月,繁殖期4—7月;窝卵数2-5枚,孵化期30 d左右,10日龄幼鸨成活率29%.大鸨喜栖息在原草开阔地,是一种杂食性鸟类,在繁殖期取食一些昆虫等动物性食物,但以植物性食物为主.
During 2000—2001,an investigation on the population ecology of Great bustard was carried out in Tumuji area of Inner Mongolia.In the beginning the end of March or in the end of April,the flocks of Great bustard come to Tumuji area for breeding.They live at the area for about 7 months every year.Their breeding period is from April to July,and usually 2～5 eggs are laid in each nest and the incubation lasts 30 days.survival rate of the ten-day old young bustards is approximately 29%.Great bustard is an omnivorous bird,but feeding mainly on herbage.
出处
《东北师大学报（自然科学版）》
CAS
CSCD
北大核心
2007年第2期103-105,共3页
Journal of Northeast Normal University(Natural Science Edition)
基金
国家自然科学基金资助项目(30170141)
关键词
大鸨
种群
繁殖
食性
图牧吉
Great bustard
population
breeding
food habits
Tumuji area
