›› 2015, Vol. 58 ›› Issue (5): 569-578.doi:

• RESEARCH PAPERS • Previous Articles     Next Articles

Diversity characteristics of fruit flies in Xingyi, Guizhou, southwestern China

WANG Tao1, REN Yan-Ling2, YANG Mao-Fa1,*, ZHANG Run-Zhi3,*   

  1. (1. Provincial Key Laboratory for Agricultural Pest Management of Mountainous Region, Institute of Entomology, Guizhou University, Guiyang 550025, China; 2. Guizhou Light Industrial Vocational College, Guiyang 550025, China; 3. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China)
  • Online:2015-05-20 Published:2015-05-20

Abstract: 【Aim】 This study aims to obtain an overall knowledge of the species composition, occurrence and diversity alteration of fruit flies in Xingyi, Guizhou, southwestern China.【Methods】 The fruit flies were trapped using the methods of sex attractant, food attractant, and cultivation of infested melons to investigate and monitor the species and the number of individuals of fruit flies systemically from 2010 to 2011 in five different habitats in Xingyi, Guizhou, and all the collected data were analyzed with the related biodiversity indexes including Shannon’s diversity index. 【Results】 The dominant fruit fly species included Bactrocera dorsalis, B. cucurbitae, B. tau and B. scutellata in Xingyi, Guizhou, and the dominant species and similarity coefficient (0.33-0.89) varied with years and monitored sites. However, the annual population dynamics of the dominant fruit fly species was similar. The cluster analysis indicated that the relationship of the fruit fly species between two rural habitat orchards was the closest, while that between urban mixed orchards and other habitat orchards was the remotest. There were differences in the diversity indexes of the fruit fly species among different monitored sites, and the values of Simpson index, Shannon index and evenness index were 0.11-0.68, 0.28-1.25 and 0.18-0.62, respectively, in the two years monitored. 【Conclusion】 Fruit fly species richness are high in Xingyi, Guizhou. The occurrence of the fruit flies is related to local climate, host plant, ecological niche competition, etc. The numbers of species and individuals of trapped fruit flies are obviously higher in the habitat-similar mixed orchard than that in the mono-cultured orchard. The closer the flies to the urban, the earlier the occurrence period and the greater the amount of individuals. These results provide a scientific basis for control of fruit flies in this region.

Key words: Fruit fly, species composition, dominant species, habitat, species diversity, population dynamics, Guizhou