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稻田节肢动物群落的营养联系
引用本文:尤民生,庞雄飞.稻田节肢动物群落的营养联系[J].应用生态学报,1993,4(3):278-282.
作者姓名:尤民生  庞雄飞
作者单位:福建农学院,华南农业大学 福州 350002,广州 510642
摘    要:根据田间调查和室内饲养观察的资料,研究了稻田节肢动物群落的营养结构及类型。在稻田生态系统中,物种之间由于取食与被取食、寄生与被寄生、捕食与被捕食的营养联系,形成了复杂的食物链和食物网。依据物种在食物网中的位置和功能,可将福州市郊区稻田节肢动物群落的营养结构分为3种类型:1)食物网中尚未发现有重寄生环节;2)食物网中有重寄生环节;3)食物网中有兼寄生环节。为了探讨定量研究生物群落营养联系的可能性,本文运用图论的知识把食物网的结构描述为标向图、集合或邻接矩阵,同时用图论的运算法则解决了各种类型的食物网的合并问题,为研究复杂群落的营养关系提供了一种新方法。

关 键 词:营养联系  节肢动物  群落  稻田

Trophic relations of arthropod community in paddy fields.
You Minsheng.Trophic relations of arthropod community in paddy fields.[J].Chinese Journal of Applied Ecology,1993,4(3):278-282.
Authors:You Minsheng
Abstract:This paper deals with the trophic structure and its types of arthropod community in paddy fields based on outdoor surveys and indoor experiments. In paddy field ecosystem, complex food chains and food webs may be formed because of the interspecific relations of feeding, parasitism and predatism. According to the living patterns of parasitic species in food webs, the trophic structures of arthropod commonity in paddy fields of Fuzhou suburbs can be divided into three types: 1) no link of epiparasitism in food webs; 2)some links of epiparasitism in food webs; and 3) some links of double parasitism in food webs. By using the knowledge and operation rules of graph theory, a food web can not only be described as a signed directed graph(SDG), a set, or an adjacent matrix, but also be combined with others. The method has been proved valuable in the studies of trophic relations of a complex community.
Keywords:Trophic relation  Food web  Graph theory  Arthropod community  Paddy field    
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