摘要
1994年 3月至 7月在吉林省左家自然保护区对灰椋鸟的繁殖生态研究发现 ,在 1 2 2hm2 的面积内共有 36个灰椋鸟巢 ,繁殖密度为 0 32 1巢 hm2 。繁殖期由 4月 2 4日持续到 7月 1 1日共 79d。平均窝卵数为 5 89(SD =1 1 7,n =36 ) ,窝卵数同繁殖季节呈显著负相关 (r=-0 75 72 ,P <0 0 1 )。平均孵化期为1 3 6d ,平均育雏期 2 1 6d。平均每巢出飞 5 1只幼鸟。幼体 (卵、雏鸟 )死亡的最主要原因是人为干扰。
The studies on reproduction ecology of White-cheeked starling (Sturnus cineraceus) have been carried out in the Zuojia Natural Reserve in March～July 1994. There was 36 nests in two sampling fields (total area 112*!hm 2). The density was 0.321 nests/hm 2. The reproduction period was 79 days (24th Apr.～11th Jul.). The mean of clutch size was 5.89 (SD=1.17, n=36). There was a obvious negative correlation between clutch size and reproduction season (r=0.7572, P<0.05). The mean of hatching period was 13.6 days. The mean of nursing period was 21.6 days. The mean of reproduction success was 5.1 birds/nest. The most important cause for the death of eggs and nestlings was human disturbance.
出处
《动物学杂志》
CAS
CSCD
北大核心
2002年第1期58-59,共2页
Chinese Journal of Zoology
关键词
灰椋鸟
繁殖期
繁殖成效
窝卵数
繁殖生态
White-cheeked starling (Sturnus cineraceus)
Breeding period
Reproduction success
Clutch size
