检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
出 处:《佳木斯大学学报(自然科学版)》2005年第4期674-676,共3页Journal of Jiamusi University:Natural Science Edition
摘 要:在2004.8.15-2005.8.17间对佳木斯市南郊四丰山的蝶类进行种类和数量的调查统计,分析该地区蝶类资源的季节性变化,共收集蝴蝶982只,隶属7科51属75种.研究表明在本地区季节变化和植被类型是决定蝴蝶种类组成和分布的主要因素,而人为因素也是影响种群消长的敏感因素.From August 15, 2004 to August 17, 2005, type and the quantity investigation statistics was carried in different time to the type and the quantity in South suburb Sifeng Mountain of Jiamusi City to analyze butterflies resources the seasonal change in this area. 982 butterflies were collected altogether, which belonged to 7families, 51 genus and 75species. The research indicates that in this area seasonal variation and the vegetation type are primary factor determining the species composition and the distribution of butterflies. Moreover, the human factor can also be the susceptibility factor affecting the plant or animal community increase and decrease.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.15