Study areas | Haikou | Qiongzhong | Danzhou | Wanning | Sanya | Total |
---|---|---|---|---|---|---|
Species level | ||||||
 γ diversity (overall) |  |  |  |  |  | 9 |
 α diversity (species richness) | 6 | 8 | 8 | 7 | 7 | 9 |
 True β diversity | 1.50 | 1.13 | 1.13 | 1.29 | 1.29 | – |
 Proportional species turnover βp | 0.33 | 0.11 | 0.11 | 0.22 | 0.22 | – |
Individual level | ||||||
 Gini-Simpson biodiversity index | 0.17 | 0.31 | 0.42 | 0.07 | 0.38 | 0.14 |