栗斑腹鹀种群数量变化的分析  

Analyses of variation in quantity of Jankowski's Bunting

作　　者：程瑾瑞[1] 高玮[1] 王海涛[1] 万冬梅[2] 赵匠[1] 张丽杰[3] 佟富春[4] 

机构地区：[1]东北师范大学生命科学学院,吉林长春130024 [2]辽宁大学生命科学系,辽宁沈阳110036 [3]中国科学院动物研究所,北京100080 [4]中国科学院沈阳应用生态研究所,辽宁沈阳110015

出　　处：《东北师大学报（自然科学版）》2002年第1期49-53,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 ( 39870 1 1 7)

摘　　要：1999年至 2 0 0 1年每年 4～ 7月在吉林省西部地区对栗斑腹种群数量及繁殖情况进行了调查 ,发现三年来栗斑腹种群数量连续下降 .其原因是 :人为干扰导致栗斑腹繁殖成功率及繁殖成活率降低 ,从而导致栗斑腹种群数量下降 ;研究地区内近几年连续高温干旱的天气也导致了栗斑腹种群数量的下降 ,气温升高 (R2 =0 9964 )、降雨量减少 (R2 =0 84 98)对栗斑腹种群数量下降的影响很大 .After having investigated the population quantity of Jankowski's Bunting and their breeding in the west of Jilin Province during the period from 1999 to 2001,found that the population quantity of this kind of bird had continued decreasing.The analyses suggested that there were two reasons for the decline in the quantity of Jankowski's Bunting population.One was human disturbance which reduced the breeding success rate and survival rate.The other was the continuously high temperature and droughty climate in this area since 1999.The rising of temperature(R 2=0.996 4)and the decreasing of precipitation(R 2=0.849 8)were the main climate factors which cause the decline in the quantity of Jankowski's Bunting population.

关 键 词：栗斑腹鵐 种群数量 气候因子 人为干扰 繁殖成活率 繁殖成功率 

分 类 号：Q959.739[生物学—动物学] Q958.15