Diversity, and dominant species, of rice field spiders in Guizhou province
Author of the article:LIU Jing;SUN Liang-Yu;FU Di;ZHU Jia-Yun;XIAO Rong
Author's Workplace:Institute of Entomology, Guizhou University, Guiyang 550025, China;Institute of Entomology, Guizhou University, Guiyang 550025, China;Institute of Entomology, Guizhou University, Guiyang 550025, China;Institute of Entomology, Guizhou University, Guiyang 550025, China;Institute of Entomology, Guizhou University, Guiyang 550025, China
Key Words:rice field spider; community structure; diversity; dominant species
Abstract:
[Objectives] To investigate the
diversity and dominant species of rice field spiders in Guizhou, and thereby
provide a foundation for using rice field spiders to control rice pests. [Methods] A five-point sampling method,
based on the investigation and identification of spider diversity during the
tillering and filling stages of rice, was implemented in Bingmei town,
Qiandongnan prefecture (A), Fengcheng town, Qiandongnan prefecture (B),
Guancang town, Zunyi city (C), Maojian town, Qiannan prefecture (D), Hefeng
township, Guiyang city (E), Shuangbao town, Anshun city (F), and Xinmin town,
Panzhou city (G). The diversity, dominance, uniformity and similarity of
spiders at each location was then comparedand analyzed. [Results] A total of 6 856 spider specimens were
collected, belonging to 111 species of 51 genera and 13 families. The dominant
families were the Lycosidae and Tetragnathidae, and the dominant species were Pirata subpiraticus, Tetragnatha
mandibulata, Tetragnatha praedonia, Tetragnatha nitens, Tetragnatha maxillosa, Pardosa
pseudoannulata, Lycosa labialis, Araliape bruennichia, Hahnia corticicola, Mendoza
canestrinii, and Oxyopes forcipiformis. The diversity of spider communities in the
different locations can be ranked on the basis of the Shannon Wiener diversity
index as follows; C>B>G>D>A>F>E, on the basis of the Margalef
richness index as; C>B>E>D>F>A>G>F, Pielou uniformity
index as C>B>F>G>D=A>E, and on the basis of the Simpson
dominance index as E>D=F=A>G>B>C. The similarity and cluster
analysis of spider communities in different locations showed that the
similarity between two spider communities in rice fields was moderately
dissimilar, Among them, Fengcheng Town (B) and Guancang Town (C) have the
highest similarity. [Conclusion] Guizhou
rice field spider communities are rich in species and the dominant species
differ in in different localities and times of year.