【摘要】 根据桃园节肢动物群落物种的组成和数量,按照营养和取食关系,将群落划分为植食类、捕食类、寄生类和中性类亚群落,按照系统分科的方法,将每个亚群落分成不同的功能类群,采用群落分析的多个参数比较分析了群落的结构和季节动态。结果表明,桃园共调查出节肢动物55种,分属于37科,其中植食类28种,分属于18科;捕食类22种,分属于14科;寄生类3种,分属于3科;中性类2种,分属于2科。植食类的相对丰盛度为0.953367,捕食类相对丰盛度为0.046188,各亚群落的优势集中性表现为植食类(0.980648)>捕食类(0.886292)>寄生类(0.420000)。H′多样性指数为捕食类节肢动物亚群落>节肢动物总群落>植食类节肢动物亚群落;Hill多样性指数(N1)为捕食类节肢动物亚群落>节肢动物总群落>植食类节肢动物亚群落;Hill多样性指数(N2)为捕食类节肢动物亚群落>节肢动物总群落>植食类节肢动物亚群落。更多还原

【Abstract】 The arthropod community was divided into four subcommunities:phytophages,predators,parasitorids and neutralities by the standard of nutrition and hunting.The structures and dynamics of arthropod community and different subcommunities were analyzed by using a number of community parameters.The results indicated that there were 55 species of arthropod belonging to 37 families,including 28 species of phytophages representing 18 families;22 species of predators representing 14 families;3 species of parasitords representing 3 families;2 species of neutralities representing 2 families in peach orchards.The relative abundance of phytophages and predators were 0953367 and 0046188 respectively.So it can be seen that the phytophages dominated the arthropod community in peach orchards.The dominant concentration of phytophages was 0980648,larger than that of predators (0886292) and parasitoids (0420000).The other parameters such as diversity index (H′) and diversity index (Hill) including N1,N2,indicated the same trends,and showed the following order:predators subcommunity＞arthropod community＞phytophages subcommunity.更多还原