Keanekaragaman Dan Kelimpahan Anggrek Epifit Di Kaki Gunung Liangpran, Kalimantan Timur

Abstract

Liangpran Mountain is located within the Heart of Borneo (HoB) Conservation Area which has high biodiversity. The exploration of orchids has been carried out in several locations in the HoB region and recorded a high diversity of wild orchid. This research was conducted to explore and inventory the orchids from the foothill of Mount Liangpran, and record the diversity and abundance of epiphytic orchids in the study sites. This research was carried out by making track of exploration along the Nuyung river estuary to the Tebing Lapah. The richness and abundance data were collected in three plot of 1000 x 20 m. The host tree characteristics and distribution of epiphytic orchid on the host tree were recorded. Fourteen species orchids were collected, and the most dominant are Coelogyne asperata and Agrostophyllum stipulatum with an abundance of 23.53% each. The epiphytic orchids in host trees are spread from the zone II to V based on the Johansson’s sections, in which zone IV is the most diverse. Nine species of the host trees associated with the collected orchids were identified and grouped into five families. The characters of host trees are 7–57 m height,12–112 cm diameters, and 2 types of bark surfaces (rough and intermediate).

Orchid (Orchidaceae) Inventory in Isau-Isau Wildlife Conservation Resort Area IX Lawang Agung Village, South Sumatra

“…Whereas the primary forest is dominated by tall trees with large trunk diameters, few branches and far from the ground, making it difficult to observe. According to Febriandito and Lita (2019), epiphytic orchids are often found on fallen trees, and according to research by Effendi et al (2019), trees with a trunk diameter of less than one meter were found to have 1-3 species of orchids consisting of 1-45 individuals, while in trees with a diameter of more than one meter only one individual orchid was found. Orchids are found in many branches and are rarely found in the branch-free zone.…”

Characteristics of Host Trees as Habitat for Ephiphytic Orchids in the Cibereum waterfall Path, Mount Gede Pangrango, West Java

“…Pada zona IV ditemukan 20 jenis anggrek epifit. Habitat yang cocok untuk pertumbuhan anggrek epifit adalah zona III dan zona IV (Effendi et al, 2019). Zona II merupakan daerah batang utama hingga batas percabangan.…”

“…Anggrek tersebut merupakan anggrek yang tidak memiliki pseudubolb. Hal tersebut sesuai dengan penelitian Effendi et al, (2019) bahwa pada zona V hanya ditemukan jenis anggrek yang berukuran kecil dan memiliki pseudubolb kecil atau tidak memiliki pseudobulb sama sekali.…”

“…Kulit batang yang kasar dan retak merupakan habitat yang cocok untuk melekatnya biji anggrek (Budi et al, 2016). Hal tersebut karena biji anggrek akan mudah tersangkut pada batang yang memiliki kulit kasar dan retak sehingga memungkinkan terjadinya proses perkecambahan biji (Effendi et al, 2019).…”

“…Gambar 2. Desain sampling teknik pengambilan dataKemudian untuk jenis anggrek epifit yang ditemukan pada pohon inang, diamati distribusinya berdasarkan kaidah Johanson 1975(Effendi et al, 2019).…”