关键词: 生态适合度, 生物多样性, 转GAFP基因棉花, 昆虫群落结构与组成, 甜菜夜蛾, 棉铃虫

Abstract: In order to explore the distribution and competitive relation of Crematogaster rogenhoferi and the symbiotic dominant species, Tapinoma melanocephalum in Parasaissetia nigra, the spatial distribution patters of C. rogenhoferi and T. melanocephalum populations on rubber trees and the influence of C. rogenhoferi on population quantity of T. melanocephalum were investigated by searching methods in rubber forest and the competitive relation of the two kinds of ants under indoor interference was analyzed in this study. The results showed that the spatial distribution patterns of the two kinds of ants on rubber trees were aggregating distribution. Furthermore, the quantity of T. melanocephalum in C. rogenhoferi nest colonies was significantly lower than that without C. rogenhoferi, which indicates that C. rogenhoferi has certain control effect on T. melanocephalum. When combined one C. rogenhoferi with different densities of T. melanocephalum indoors, C. rogenhoferi showed a phenomenon of no mortality. When the ratio was under 1:9, T. melanocephalum was rapidly attacked by C. rogenhoferi and its mortality was more than 50%. When the ratio was over 1:9, the behavior of C. rogenhoferi turned into passive defense from active attack with the mortality of T. melanocephalum declining to 26.67%-9.78%. In conclusion, one C. rogenhoferi can fight against nine T. melanocephalum at most.

Key words: cotton bollworm, structure and composition of insect community, beet armyworm, ecological fitness, biodiversity, transgenic GAFP cotton