吉林省左家自然保护区洞巢特征

Cavity-nesting Characteristics in Zuojia Nature Reserve of Jilin Province

2014—2015年,对吉林市左家自然保护区次生阔叶混交林内4个研究区域的洞巢进行调查,采集、统计洞巢相关因子,研究左家地区洞巢特征.结果表明：洞巢鸟选择洞巢方面有一定的规律性.树种以白皮柳居多,选用巢址洞口的朝向以南、西南、西为主;洞口倾斜角-30°~0°;洞口横径、洞口纵径、洞距地、胸径和洞位径等参数差距不大.研究成果可对洞巢资源的利用、洞巢鸟行为等相关研究起到促进作用.

In 2014--2015, we investigated and collected the cavity-nesting factors in the four research areas of secondary broad-leaved mixed forest of Zuojia Nature Reserve in Jilin city. The results show that cavity-nesting birds had regularity in the choice of cavity-nests, in the majority of white willow trees, the orientation of cavities is mainly toward the south, southwest and west; hole inclination angle is -30° -0 °;and hole diameter, hole longitudinal diameter, the hole distend from the ground, diameter and other parameters were similarity. The results would have advancing activity on the use of cavity-nesting resources, the research of cavity-nesting birds behavior.