Biodiversity conservation of epiphyte orchids in the natural habitat for sustainable bioeconomy

Abstract

Epiphyte orcids grow abundantly in tropical rainforests. To save the existence of epiphyte orchids, it is necessary to keep them from the threat of extinction. Some efforts that could be done is by conducted periodically exploration and conservation activities. Objective of this study was to gather information on the biodiversity of epiphyte orchids at Highway Forest Park Raden Soeryo East Java and supported by exploration data in 2006. Exploration of epiphyte orchid at Jogging Track and Coban Watu Ondo, Highway Forest Park Raden. Soeryo, East Java was conducted in May-June 2019. The research method was descriptive-exploration with random sampling method. Exploration results at South Mt Arjuno Lalijiwo in 2006 recorded epyphyte orchids 14 genus, 33 species, 343 populations; highest IVI Dendrobium nudum 32.01; lowest IVI Liparis caespitosa, Schoenorchis juncifolia and Thrixspermum aff subulantuntum 1.05. At East Mt Anjasmoro found 18 genus, 34 species, 1175 populations; highest IVI Trichostosia annulata 48.21; lowest IVI Ceratostylis andjasmoroensis 0.73. In 2019 at Jogging Track site found epiphyte orchids 14 genus, 53 species, 5545 populations. Highest IVI Appendicula elegans 35.55; lowest IVI Agrostophyllum sp, Bulbophyllum sp and Dendrobium tenellum 0.24 with Shannon-Wiener Index 2.73. At Coban Watu Ondo 14 genus, 37 species, 2352 populations. Highest IVI Eria vericulosa 20.33; lowest IVI Oberonia similis, Bulbophyllum sp, Pholidota carnea, and Appendicula sp 0,40. with Shannon-Wiener Index 2.86. It concluded that biodiversity of epyphyte orchids at Highway Forest Park R. Soeryo is moderately diverse. Its conservation also maintained well. Some epyphyte orchids have bioeconomy potential as raw material for perfume.