【摘要】 在吉林左家自然保护区,对次生阔叶林中的普通进行的研究中发现,不同窝雏数的在巢雏鸟生长发育存在显著差异(t-检验P<0 05),且各生长参数出现差异的日龄有所不同.对不同窝雏数雏鸟的体重生长状况进行了比较,发现出飞前雏鸟的平均体重与窝雏数呈负相关.该区域普通的平均窝雏数为(7 59±0 94)只(n=17).对不同窝雏数的亲鸟的日活动进行了全天观察,发现亲鸟喂食次数、清理粪便次数与窝雏数呈显著正相关(F-检验P<0 05).更多还原

【Abstract】 Eurasian Nuthatch was studied in the secondary forest of Zuojia Nature Reserve,Jilin Province.The results showed that growth of nestlings in different size broods exjst significant differences (t-test P<0.05),and there exist differences between ages that the growth parametric appear different.The growth of weight were compared between broods with different size.Found a negative correlation between the average weight of nestlings before flyling and the brood size.In the study area,the average size broods of Eurasian Nuthatch is 7～8.Made whole-day observations and found that a positive correlation between the parental birds feeding times,clearing faeces times and the brood size (F-test P<0.05).更多还原