Biodiv Sci ›› 2008, Vol. 16 ›› Issue (3): 214-224.  DOI: 10.3724/SP.J.1003.2008.07398

Special Issue: 昆虫多样性与生态功能

• Original article • Previous Articles     Next Articles

Mechanisms of inter- and intra-specific competitive replacement by the Bemisia tabaci B biotype (Homoptera: Aleyrodidae)

Jinyan Liu1,2, Guifen Zhang2, Fanghao Wan2,*(), Jinjun Wang1   

  1. 1 Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716
    2 State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100094
  • Received:2008-01-07 Accepted:2008-02-26 Online:2008-05-20 Published:2008-05-20
  • Contact: Fanghao Wan

Abstract:

The B biotype of Bemisia tabaci, sometimes called a “super bug”, has been one of this species complex’s most harmful biotypes because of the tremendous damage it inflicts worldwide. Recently, competitive displacement of pre-existent biotypes and other herbivores by the B. tabaci B biotype has been observed in many regions worldwide. Based on literature review, the mechanisms responsible for competitive replacement by B. tabaci may include exploitation or interference competition, which involve niche competition, differential abilities in resource acquisition, asymmetric mating interactions, heat shock adaptation, pesticide susceptibility, and interactions between B. tabaci B biotype, host plants, and viruses. Moreover, the B biotype likely has unique endosymbionts, which may be important in enhancing its competitive ability. We also discuss related mechanisms involved with serious damage caused by the B. tabaci Q biotype.

Key words: Bemisia tabaci, biotype, invasive alien species, inter- and intra-specific competition, competitive mechanism