%0 Journal Article
%T POPULATION DYNAMICS OF THE TREE SPARROW (PASSORMONTANUS) DURING BREEDING PERIOD IN THEAGRICULTURAL REGINO OF BEIJING<br>农田麻雀繁殖期间的种群动态
%A CHU GUOZHONG
%A <br>楚国忠
%J 生态学报
%D 1983
%I 
%X Population dynamics of the tree sparrow (Passer montanus) were studied in the breeding period of 1980-1981 at a rural area near Shunyi County, Beijing (40°09'N, 116°39' E).In the suburbs of Beijing, for the population as a whole, the duration of the breeding season lasted about ninety-four days. Three observable peaks occurred in the pattern of the temporal distribution of breeding.In June, about 20% of the total numbers were the young sparrows, which is first discovered in June, but gradually increased as ...
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=FE163E5DB2274E5937319DE98913EC37&aid=0887C6A0B4DFA4612AC27DC10EA19D14&yid=A7F20A391020FDEE&vid=38B194292C032A66&iid=0B39A22176CE99FB&sid=31611641D4BB139F&eid=9D453329DCCABB94&journal_id=1000-0933&journal_name=生态学报&referenced_num=3&reference_num=0