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The Assessment of Mangrove Community Based on Vegetation Structure at Cendi Manik, Sekotong District, West Lombok, West Nusa Tenggara Baiq Farista; Arben Virgota
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v21i3.3047

Abstract

The area at the research site has a mangrove community that is experiencing disturbances due to the conversion of land into ponds. Therefore, the purpose of this study was to assess the actual condition of mangrove vegetation after land conversion. The method used in this research is a survey and the sampling point is determined randomly (random sampling). Furthermore, observations were made on two existing mangrove blocks, namely the Natural Block and the Rehabilitation Block. Observation plots were placed randomly in the Natural Bok and Rehabilitation Block. Randomization was carried out on the regional map by making a grid measuring 10x10m and numbered. The data were analyzed using the analysis of the diversity index value (Shannon-Wiener), the evenness index (Evenness), the proportion of vegetation at each growth level and the pattern of vegetation distribution (Morisita Index). The results showed that the value of species diversity in the Natural Block was 0.95 and the Rehabilitation Block was 0.99. This value is included in the category of low diversity. The evenness index obtained a value of 0.49 in the Natural Block and 0.45 in the Rehabilitation Block. This value indicates that the distribution of the number of individuals in each species is not evenly distributed. Vegetation is dominated by Trees (in the Natural Block) and Saplings (in the Rehabilitation block). The vegetation in the Natural Block is older than the Rehabilitation Block. Meanwhile, based on the value of the Morisita index, the distribution pattern of mangrove vegetation in the study area is included in the cluster category.
Herpetofauna Diversity at Eaglewood Gyrinops vesteegii Conservation Area in Pusuk Protected Forest, Lombok Yuliadi Zamroni; Ahmad Jupri; Baiq Farista; Aida Muspiah; Tri Mulyaningsih
Jurnal Penelitian Pendidikan IPA Vol 9 No 11 (2023): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i11.4600

Abstract

Pusuk Protected Forest at Lembah Sari Village, Batu Layar District, western Lombok is Gyrinops vesteegii conservation area, the one of eaglewood trees in the Lesser Sunda Islands. Studying diversity and distribution of herpetofauna in conservation area to understanding how this fauna could be stabilized the community structure of organisms in the ecosystems with their act as secondary and tertiary consumers in food web organization. Herpetofauna in this area was captured by visual encounter surveys (VES) method. Eleven species of herpetofauna have been collected from eaglewood conservation area in protected forest of Pusuk, is comprised by four species of amphibians (Duttaphrynus melanostictus, Ingerophrynus biporcatus, Limnonectes dammarmani and Limnonectes kadarsani) and seven species of reptiles (Ahaetulla prasina, Cyrtodactylus petani, Dendrelaphis pictus, Draco volans, Eutropis multifasciata, Gekko gecko, Sphenomorpus melanopogon and Sibynopis geminatus). This animal group plays as a role in maintaining the stability of eaglewood ecosystems by controlling its pest populations such as moth larvae of Heortia vitessodes and white lice of Dysmicoccus brevipes. Based on this research, higher diversity of herpetofauna with varying types of their habitats could be control the varying types of forest tree pests