Fig. 4

Effects of presumed habitat loss on the bird diversity and bird–habitat network structure on Dong Island, South China Sea. a species number; b Shannon–Wiener diversity index; c Pielou uniformity index; d Connectance of the bird–habitat network; e Modularity of the bird–habitat network; f NODF of the bird–habitat network; g Species number of resident birds; h Species number of migrant birds