大鸨窝卵数及营巢成功率  

Clutch Size and Nesting Success of Great Bustard

作　　者：赵匠[1] 易国栋[1] 万冬梅[2] 王海涛[3] 高玮[3] 

机构地区：[1]吉林师范大学,四平136000 [2]辽宁大学 [3]东北师范大学

出　　处：《东北林业大学学报》2006年第6期61-62,76,共3页Journal of Northeast Forestry University

基　　金：国家自然科学基金资助项目(30170141)。

摘　　要：2000年和2001年的4—7月,在内蒙古扎赉特旗草原,采用野外直接观测法对野生大鸨的窝卵数、营巢成功率进行了研究,结果表明:大鸨种群的平均窝卵数为(2.52+0.98)枚/巢(n=53);窝卵数与产卵期值、出巢数与产卵期值、窝卵数与卵大小之间呈负相关;产卵期值与孵化率之间存在极显著的负相关关系,巢径与窝卵数之间存在显著的正相关关系,巢的其余指标均与窝卵数呈正相关;大鸨的孵化率24.53%,营巢成功率为38.10%,雏鸟存活率为38.46%。An experiment was conducted to study the clutch size and nesting success of wild Great Bustard （Otis tartia） on the grassland of Zhalaiteqi in Inner Mongolia Municipality by the method of direct observation during the period from April to July in 2000 and 2001. Results showed that the average clutch size of Great Bustard population was 2.52 ＋0.98 eggs per nest （n =53）. There were negative correlations between clutch size and laying date, fledgling number and laying date, clutch size and egg size, significantly negative correlation between laying date and incubation rate, and significantly positive correlation between nest diameter and clutch size. There were positive correlations between other attributes of nest and clutch size. The incubation rate was 24.35%, the nesting success was 38.10% , and the nestling survival rate was 38.46%.

关 键 词：大鸨 窝卯数 营巢成功率 

分 类 号：Q958.15[生物学—动物学]