Biodiversity Science ›› 2006, Vol. 14 ›› Issue (1): 73-78.doi: 10.1360/biodiv.050118

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Diversity comparisons of Curculionidae between 9 subtypes of vegetation in Xishuangbanna Nature Reserve

Qiao Li*   

  1. Faculty of Conservation Biology, Southwest Forestry College, Kunming 650224
  • Received:2005-06-02 Revised:2005-09-26 Online:2006-01-20
  • Qiao Li

We studied the species diversity of Curculionidae in seasonal rain forest,mountain rain forest,semi-evergreen monsoon forest,deciduous monsoon forest,karst monsoon forest,monsoon evergreen broad-leaf forest,warm deciduous broad-leaf forest,warm pine forest, and hot bamboo forest in Xishuangbanna Nature Reserve, Yunnan. A total of 853 weevils were captured by shaking-off collection, be-longing to 96 species, 52 genera, and 18 subfamilies. Among the subfamilies, Cryptorrhychinae, Otior-rhynchinae, Rhynchaeninae, Tychiinae, Curculioninae, Barinae, and Conoderinae contributed more than five species. Cryptorrhychinae, the most abundant subfamily, was represented by 21 species occupying 21.9% of the total. Rhynchaeninae, Curculioninae, Cryptorrhychinae, Otiorrhynchinae, Anthonomnae, Conoderinae, Barinae, Tychiinae, and Cioninae were represented by more than 10 weevil individuals, of which Rhyn-chaeninae had 394,comprising 46.2% of the total number. The greatest densities of individuals occurred in the warm deciduous broad-leaf forest and the seasonal rain forest, while relatively less occurred in the de-ciduous monsoon forest and the semi-evergreen monsoon forest. Every weevil community in the nine vegeta-tion subtypes had its own stenoecious and rare species. Seasonal rain forest was the richest in stenoecious and rare species, while semi-evergreen monsoon forest ranked second. Considering species richness, seasonal rain forest was the richest, whereas warm deciduous broad-leaf forest was the poorest. The weevil communi-ties in the nine vegetation subtypes are very dissimilar. More attention should be paid to seasonal rain forest and semi-evergreen monsoon forest for their important roles in biodiversity conservation.

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