Thanongsak BunnagMahidol University2018-03-222018-03-221977-12-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.8, No.2 (1977), 236-248003836192-s2.0-0017708809https://repository.li.mahidol.ac.th/handle/123456789/10278Provisional nidal base regions are delineated for Thailand. The nidal base regions so derived are compared by computing the percentages of species common to pairs of provinces (coefficient of community, CC). The results provide a CC matrix and dendrogram showing the relationship between regions, combined with the general geographic and climatologic conditions. Six ecological regions are designated, of which five are classified as super provinces (Northeast, Central, East, South and Far South), while only one is a subregion (North). Problems of error in the data are discussed and the need for further accurate analysis to further the goal of control of disease.Mahidol UniversityMedicineArticleSCOPUS