Species diversity, richness, and conservation status of Pteridophyta in the karst ecosystem of Donorejo Forest, Kaligesing, Purworejo, Indonesia

Abstract. Pramudita DA, Armando MF, Rahmayani D, Afifah FN, Putri NRA, Hartanti AN, Safira RN, Mahajoeno E, Indrawan M, Nazar IA, Buot Jr IE, Setyawan AD. 2023. Species diversity, richness, and conservation status of Pteridophyta in the karst ecosystem Donorejo Forest, Kaligesing, Purworejo, Indonesia. Intl J Trop Drylands 7: 16-25. is often used as an environmental bioindicator. It can be found anywhere because its cosmopolite ability. Karst one type habitat roles a pioneer plant. This study aims to determine Pteridophyta's biodiversity Central Java, The data collection species was carried out by survey method. Furthermore, were analyzed using Shannon-Wiener Diversity Index (H'), Margalef Richness (Dmg), Evenness (E). research 1387 individuals from 14 families 34 species. Then, analysis that has been calculation tree indices, following results are obtained; Shanon-Wiener (H') = 2.53, (Dmg) 4.56, (E) 0.72. Selaginella plana (Desv. ex Poir.) most dominant area. From status, there two LC (Least Concern) under IUCN namely Pteris vittata L. Sphaeropteris glauca (Blume) R.M.Tryon., while rest NE (Not Evaluated). Moreover, CITES Appendix II S. glauca. Those indices showed Forest stable, productive, complex with moderate biodiversity, high value for At same time, it faces threats local community activity. result diversity assessment, especially land ecosystems, further make appropriate strategy.