KEANEKARAGAMAN CORTICOLOUS LICHEN DAN PREFERENSI INANGNYA DENGAN Erythrina lithosperma Miq., Pinus merkusii Jungh. & De Vr. dan Engelhardtia spicata Blume DI BUKIT BIBI, TAMAN NASIONAL GUNUNG MERAPI

• Main Authors: , Puspita Ratna Susilawati, , Dr. Rina Sri Kasiamdari
• Format: Theses and Dissertations NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2013
• Subjects: ETD
• Online Access: https://repository.ugm.ac.id/119871/; http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=59876
• Institution: Universitas Gadjah Mada

Lichens (lumut kerak) is an association between fungi and photosynthetic simbiont forming a stable and specific thallus. Corticolous lichens is lichen species which is found as an epiphyte in bark substrate. Corticolous lichens is an important component of forest ecosystem as an autotroph organism which contribute to the ecosystem biomass and sensitive to the environmental exchange caused by air pollution and climate exchange. The present of a lichen depends on its host tree (phorophyte) because some lichens species choose some specific tree as a host. Information of host specificity is very important for red-listed lichens species to conservation purpose. The aims of this research were to study the species diversity of corticolous lichens and the characteristics of bark substrate as their host and study the host preferences of 5 dominant lichens species and 2 selected lichens species at Bibi Hill, Merapi Volcano National Park with E. lithosperma, P. merkusii dan E. spicata at that location. The field data collection was done in Mei-Juni 2012 at Bibi Hill (Resort Musuk-Cepogo), Boyolali Regency. Sampling of lichen diversity was done using exploration method. Specimens collection were made to herbariums and identified based on morphological, anatomical (thallus and spore), spot test and microcrystals analysis. The substrate characterization included texture, moisture content, moisture capacity and pH. Host preferences among 7 lichens species and E. lithosperma, P. merkusii and E. spicata were calculated based on the frequency (present/absent) of 7 lichens species on 2 round quadrates from 40 trees (1,3 m and 50 cm height above the ground). Lichens host preference was determinated by Cole�s Index of Interspesific Association and signification analysis by Chi-square. The result showed that the diversity of corticolous lichen included 48 species from 25 genus and 15 family (12 fruticose, 12 foliose dan 24 crustose). The host trees were from 17 species with various characteristics, which were smooth texture up to rough with deep crevise