崇明东滩芦苇(Phragmites australis)群落中昆虫群落季节动态的初步研究  

Study on Seasonal Dynamics of the Insect Community in Common reed(Phragmites australis) community of Dongtan wetland,Chongming Island

作　　者：解晶[1] 王卿[1] 贾昕[1] 吴千红[1] 

机构地区：[1]复旦大学生物多样性科学研究所,生物多样性与生态工程教育部重点实验室,上海200433

出　　处：《复旦学报（自然科学版）》2008年第5期633-638,共6页Journal of Fudan University：Natural Science

摘　　要：利用网捕和收割植株两种方法采集崇明东滩芦苇群落中的昆虫样本.共采集到昆虫10588头,隶属于9目57科68种.分析结果表明:(1)芦苇群落中优势类群为双翅目、鞘翅目、膜翅目和同翅目;(2)随着温度升高,昆虫的物种丰富度及多度总体上呈现出上升趋势,但由于大风和降雨等自然因素而出现波动;(3)芦苇群落中全年昆虫群落的Shannon-Wiener多样性指数为2.52,Simpson优势度指数为0.14,Pielou均匀度指数为0.61.其中,Shannon-Wiener多样性指数随月份不同波动较大,9月最高达2.57,次为3月和10月,7月最低仅1.28;Simpson优势度指数变化幅度较小,较高的月依次是3、9与10月,7月最低;Pielou均匀度指数变化最平稳,较低的月依次为3、9与10月,7月最高.The characters and seasonal changes of insect community structure in Phragmites australis community （Ph. C） at Dongtan wetland, Chongming Island were studied. Results showed that a total of 10588 insects were collected by netsweeping and plant-harvesting methods from June 2006 to May 2007, belonging to 9 orders, 57 families and 68 species. 1 ） Diptera, Coleopterous, Hymenoptera and Homopterous are dominant species of Ph. C, especially the species richness （18） of Diptera is the highest of all months, then Coleoptercnssands the second place （17） ; 2） With the increasing temperature, species richness and abundance showed a increasing trend in general, which fluctuated in response to wind and rain. 3） Shannon-Wiener index fluctuated at different seasons and was lowest in July （1.28）, highest in September （2.57） ; Pietou index did not vary greatly and fluctuated around 0.62; Simpson index is higher at March （0.13） than other montks and was lowest in July （0.33）.

关 键 词：昆虫群落 芦苇 多样性 

分 类 号：Q968[生物学—昆虫学]