Abstract:The community structure of grand-dwelling vertebrates in the Wanglang Natural Reserve, Sichuan Province, was examined in relation to a wide range of habitat changes associated with logging, tourism, and restoration measures. Eight sampling sites from a range of habitats were monitored using drift-fences and pitfall traps from August to November 2006. A total of 778 individuals representing 21 species of vertebrates were captured in 75 d, including three species of amphibians, one species of bird, and 17 species of mammals. The capture rate of vertebrates was 32.4%. The vertebrate community was dominated by four species with high abundance. The relative abundance of the species was correlated with their distribution ranges (P < 0.001). Each species was trapped on different dates. Fifteen species were captured within 14 d, no new species were captured from day 15 to 30, and rest of the six species were captured after 30 sampling days. For long-term investigations, 15-30 days interval is enough to encounter vertebrate species from this method. The cumulative number of species at the sampling site exhibited a logarithmic growth curve. After 40-60 specimens were trapped, 70% of the overall species richness in one sampling site was monitored. In general, changes in the quality of habitat resulted in considerable differences in species composition, abundance, and distribution pattern of community structure, with a marked decline in diversity and evenness indices, and a substantial increase in the proportion of dominant species. The diversity of vertebrates in different habitats indicated that species diversity index (2.099) and evenness index (0.875) was highest, but the species dominance index (0.149) was lowest in weakly disturbed primary forest. Both primary shrubland with tourism and secondary shrubland experiencing spontaneous recovery from logging had moderate indices. In contrast, the secondary forest with artificial recovery had the lowest species diversity index (1.337) and evenness index (0.520), but the highest species dominance index (0.454). Based on the similarity index of community structure, a phenogram was reflected in three assemblages representing weakly disturbed, partially disturbed, and heavily disturbed habitats. Among three disturbance factors, timber harvest accounted the high level of disturbance and 42.9% difference in species composition between logged and un-logged forest communities after 50 years of clear cutting. Species most affected by tourism were associated with primary forest under an intermediate level of disturbance, whereas after 50 years of regeneration, the spontaneous recovery produced a mixed community structure that had recovered and exhibited higher species diversity.