关键词: 隐翅虫, 物种多样性, 片口自然保护区, 汶川地震, 生境

Abstract: [Objective] Theαspecies diversity of staphylinidae in five microhabitats in Piankou Nature Reserve of Sichuan province was investigated.Our study can provide foundation and references for ecological restoration of Wenchuan by comparing the data between 2005 and current study.[Method] 10 randomly-designed 5m×5m plots in five microhabitats in Piankou Nature Reserve were selected in July and August,2012 and staphylinidae samples were collected.αspecies diversity was concluded after the samples were identified.[Results] A total of 1066 samples,belonging to 162 morphological species,79genera and 13 subfamilies,had been collected.The number of samples decreased along septic matters,ground cover,fungi,haystack and waterside.The amount of morphological species was the largest in ground cover,followed by septic matters while the numbers in the other three microhabitats were similar.The analysis ofαspecies diversity showed that richness index (S) of ground cover and septic matters were relatively high while other three habitats were very similar.The dominance index (λ) was the highest in fungi and lowest in ground cover and the other three habitats were nearly same.Diversity index (H) was largest in ground cover and the other four microhabitats were close.The values of evenness index (J) in ground cover,waterside and haystack were higher than those in septic matters and fungi.The aboveαspecies diversity indexes suggested that ground cover was an excellent habitat for staphylinidae and the structure was relatively stable in such a habitat.That was a result of longterm mutual evolution of staphylinidae and specific microhabitats.[Conclusion] Compared with the data of 2005,the richness index (S) decreased in all five microhabitats but diversity index (H') and evenness index (J) were,to some extent,increased.The results noted in study indicated that species diversity of staphylinidae had been effectively restored after 4-year ecological rehabilitation and reconstruction.Ecological rehabilitation is helpful for breed development and forest succession in Piankou Nature Reserve.

Key words: staphylinidae, species biodiversity, Piankou Nature Reserve, earthquake, habitat