Study on Insect Community Network Structure and Self-Adaptation in Erhai Lake Wetland

Abstract

Abstract: In order to research the self-adaptation of insect communities to their habitats in the Erhai Lake wetland, the character
index of the insect community structure was studied. With the help of complex networks, the insect ecological network model was
established and optimized, and the composition of insect communities in wetlands in different regions was analyzed. It was found that
changes in the regional ecological environment by human activities directly affect the changes of dominant insect groups. Besides, the
temporal evolution of insect community structure was analyzed. Results show that the structures of three insect communities in Erhai
Lake wetland are similar to each other, and a strong stability exists in the original wetland. Modified wetlands have certain selfregulation ability, and seasonal habitat changes are crucial factors influencing the variety of insect communities. Finally, the correlation analysis of the characteristic parameters of insect community structure shows that species richness and diversity index are important indicators for the maintenance of the stability of insect community structure. Insect communities in Erhai wetland have strong adaptive ability, which indicates that the current ecological environment of Erhai Lake wetland is in a benign development.

Key words: wetland insect community, network topology, characteristic index, diversity, correlation, time series evolution

Hao Hongjun, Wang Xi, Zhang Mei, Liu Xuan, ZhuYuanbo, Luo Guilan. Study on Insect Community Network Structure and Self-Adaptation in Erhai Lake Wetland[J]. Journal of Dali University, 2021, 6(6): 5-14.

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