肚倍蚜瘿内种群动态与虫瘿生长发育的关系  

Relationship between population dynamics and gall development of the gall aphid Kaburagia rhusicola( Hemiptera: Aphididae)

作　　者：查玉平[1] 杨子祥[2] 陈京元[1] 蔡三山[1] 

机构地区：[1]湖北省林业科学研究院,武汉430075 [2]中国林业科学研究院资源昆虫研究所,昆明650224

出　　处：《昆虫学报》2016年第7期791-796,共6页Acta Entomologica Sinica

基　　金：林业公益性行业专项项目(201204602);国家高技术研究计划("863"计划)项目(2014AA021802);国家自然科学基金项目(U1402263;31370651;31372266)

摘　　要：【目的】本研究拟对肚倍蚜Kaburagia rhusicola瘿内种群动态与虫瘿生长发育关系进行研究,为深入研究肚倍蚜的生物学特性奠定基础。【方法】在2014年4月27日至7月16日期间,在湖北竹山田间每间隔10 d随机选择长势基本一致的青麸杨,分别采集健康肚倍蚜虫瘿,每次采集样本30个。采用排水法测量虫瘿体积,之后将虫瘿解剖,取出瘿内蚜虫,置于培养皿内,采用四分法统计数量。对虫瘿体积增长与瘿内蚜虫种群变化进行了相关性分析。【结果】虫瘿体积增长与蚜虫种群数量增长之间呈极显著正相关(r=0.960,P<0.01)。虫瘿体积与蚜虫种群数量增长分别呈现3个峰,即5月6日至5月16日、5月26日至6月6日和6月26日至7月6日。肚倍蚜瘿内密度变化的主要趋势是先降后升,中间有一个小的起伏。【结论】本研究表明虫瘿大小和瘿内蚜虫种群数量有关,虫瘿体积可用于评价干母的环境适合度。【Aim】The relationship between population dynamics and gall development of the gall aphid Kaburagia rhusicola was investigated in order to provide a basis for further studying its biological characteristics. 【Methods】Thirty gall samples induced by the aphid K. rhusicola were collected from its host trees in the field in Zhushan,Hubei every 10 days during gall growth period,from April 27 to July16,2014. Gall volume was measured by the drainage method. Each gall was dissected,all aphids were put in a petri dish,and then the number of aphid individuals was counted by the quartering method. The correlation relationship between the growth of gall volume and the change of aphid clonal population inside the gall was analyzed. 【Results】There was a significantly positive correlation between the gall volume and the number of aphids（ r = 0. 960,P〈0. 01）. Both of the gall volume and the number of aphids had three peaks,which appeared on May 6 to May 16,May 26 to June 6,and June 26 to July 6,respectively. The aphid density in gall declined at the beginning and then rose,with a slight fluctuation in the intermediate stage. 【Conclusion】This study demonstrates that gall volume is positively correlated with the number of aphids inside the gall. Gall volume can be used as an indicator for fitness of the aphid stem mother to the external environment.

关 键 词：肚倍蚜 虫瘿 种群数量 虫瘿体积 生长发育 

分 类 号：Q966[生物学—昆虫学]