Biodiversity Science ›› 2008, Vol. 16 ›› Issue (1): 24-33.doi: 10.3724/SP.J.1003.2008.07128

• 论文 • Previous Article     Next Article

Spatial distribution pattern of mosquito diversity in residential area
along Lancang River in a natural protected territory, “Three Parallel
River Region” of Yunnan Province, China

Junqi Ge1, Xiaohong Sun2, Zhengda Gong 3*, Guodong Liang 2, Jinghui Li 1, Xingming Feng 3, Liyun Zhang3, Bin Li 3, Shihong Fu 2   

  1. 1 National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Preven-tion, Beijing 102206
    2 National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Bei-jing 100052
    3 Yunnan Institute of Endemic Disease Control and Prevention, Dali 671000
  • Received:2007-05-15 Revised:2007-09-19 Online:2008-01-27
  • Zhengda Gong

The Three Parallel River Region is an epicentre of Chinese biodiversity, which is reputed as one of the world’s 25 major “biodiversity hotspots”. However, few study has been done on the notorious mosquitoes in this area. We surveyed the mosquitoes in relation to latitude and elevation along the Lancang River (24°–30°N, 1,000–3,500 m asl). Adult mosquito samples were captured using UV light traps from July to September 2005 in the mountainous residential areas. A total of 76,458 adult mosquitoes were collected and identified as 36 species of 5 genera in 2 subfamilies. The results showed: (1) species richness gradually de-creased with the increasing latitude but showed a single-peak curve pattern along the altitudinal gradient; (2) α diversity decreased first and then increased slightly along the increasing latitude, showing a wave-like curve along the altitudinal gradient; (3) β diversity (Cody index) was higher in the transitional climate zones, and the same pattern was found along the altitudinal gradient, which reflected the influence of geographical environment and climate on the species composition, fauna and diversity distribution pattern of mosquitoes; (4) Mosquito species were classified into three main ecological types by cluster analysis, namely Oriental fauna, Palaearctic fauna, and the transitional fauna between them; and (5) the result from canonical corre-spondence analysis indicated that precipitation is the key factor influencing spatial distribution pattern of mosquito diversity in the study area.

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