栗斑腹鹀巢捕食及影响因素研究  

Nest predation and factors affecting of Jankowski's Bunting

作　　者：崔煜菲 李时[1] 张立世[1] 冯致力 尚伟平 姜云垒[1] CUI Yu-fei;LI Shi;ZHANG Li-shi;FENG Zhi-li;SHANG Wei-ping;JIANG Yun-lei(College of Animal Science and Technology,Jilin Agricultural University,Changchun 130118,China)

机构地区：[1]吉林农业大学动物科学技术学院,吉林长春130118

出　　处：《东北师大学报（自然科学版）》2021年第1期105-109,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(31670398,31172109);吉林省自然科学基金资助项目(20150101067JC).

摘　　要：2018—2019年,在内蒙古扎鲁特旗地区开展了栗斑腹鹀的巢捕食率及影响巢捕食因素的研究.结果表明:蛇和草原黄鼠是栗斑腹鹀繁殖期的主要巢捕食者.两年间共找到栗斑腹鹀繁殖巢94巢,其中44巢被捕食,巢捕食率为46.8%,占繁殖失败的65.7%.对栗斑腹鹀被捕食巢和繁殖成功巢的9个巢址因子进行二元逻辑斯蒂回归分析发现,裸地面积比例及距边缘距离对巢捕食影响显著,裸地面积比例越大、距离边缘越近的巢更容易被捕食.A field study was carried out from 2018 to 2019 during the breeding season of nest predation of Jankowski's Bunting(Emberiza jankowskii)and the influencing factors in Zhalute Qi,Inner Mongolia.A total of 94 laying nests were found in the two years,among which 44 nests were preyed.The predation rate was 46.8%,accounted for 65.7%of breeding failure.According to the observation,the snake and ground squirrels(Citellus dauricus)were the dominant nest predators.Binary logistic analysis incorporating the combined effect of the 9 different variables revealed that the main factors affecting nest predation were the proportion of bare land and the distance from the edge,which had significant effects on the predation.In consequence,those that were closer to edge or higher bare land coverage were more vulnerable to nest predation of Jankowski's Bunting.

关 键 词：栗斑腹鹀 巢捕食 边缘效应 巢捕食者 

分 类 号：Q959.739[生物学—动物学]