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Journal : Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH)

The Effect of The Tree Rats (Rattus Tiomanicus (Miller, 1900)) Attack on The Quality of The Crude Palm Oil (CPO) Palm Oil (Elaeis Guineensis Jacq.) Plantations of Palangkaraya Central Kalimantan Dasuki, Diva Rosa Nirwana; Nurcahyani, Nuning; Mumtazah, Dzul Fithria; Master, Jani
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 11 No. 2 (2024)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v11i2.369

Abstract

Indonesia is the world’s largest producer of Crude Palm Oil (CPO). Tree rats (Rattus tiomanicus (Miller, 1900)) pose a significant problem in palm oil plantations by eating and damaging the mesocarp, reducing fruit weight, and affecting the Oil Extraction Rate (OER) and Free Fatty Acid (FFA) levels in CPO. This study investigates the impact of rat bites on CPO quality, focusing on OER and FFA levels. Using an experimental method, palm fruit groups with varying rat attack levels were compared to rested (3 days delayed in transport) and other pest attacked fruit groups. Results from a one-way ANOVA and Post Hoc LSD test showed that severe rat attacks (>50%) significantly affected OER and FFA compared to other conditions.
Potentially Invasive Plant Types in Way Kambas National Park Master, Jani; Sumianto; Santoso; Fanani, Ahmad; Alim, Nur; Prastika, Ichan; Yunus, Muhammad
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 1 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i1.208

Abstract

Tumbuhan asing invasif merupakan salah satu ancaman bagi keanekaragaman hayati Indonesia. Tumbuhan ini dapat mengubah ekosistem dengan mendominasi lanskap. Mengingat besarnya dampak yang dapat ditimbulkan oleh invasi tumbuhan di kawasan konservasi, maka perlu dilakukan inventarisasi jenis-jenis tumbuhan yang berpotensi invasif di Taman Nasional Way Kambas (TNWK), sehingga dampak negatif dari invasi akan mudah di cegah. Inventarisasi dilakukan dengan membuat plot analisis vegetasi pada empat tipe vegetasi di TNWK, yaitu vegetasi hutan, vegetasi hutan campuran, vegetasi rawa dan vegetasi alang-alang. Berdasarkan hasil analisis vegetasi, diperoleh 11 jenis tumbuhan berpotensi invasif di TNWK, yaitu Actinoscirpus grossus, Clidemia hirta, Chromolaena odorata, Fimbristylis ovata, Hyptis capitata, Imperata cylindrica, Isachne globosa, Lantana camara, Melaleuca leucadendron, Melastoma malabathricum, dan Mimosa pigra.     Invasive alien plant species are a threat to Indonesia's biodiversity. These plants can change ecosystems by dominating landscapes. Given the magnitude of the impact that can be caused by plant invasions in conservation areas, it is necessary to carry out an inventory of potentially invasive plant species in Way Kambas National Park (TNWK), so that the negative impacts of these invasions can be easily prevented. . The inventory was carried out by plotting vegetation analysis on four types of vegetation in TNWK, namely forest vegetation, mixed forest vegetation, swamp vegetation, and alang-alang vegetation. Based on the results of the vegetation analysis, 11 species of plants that have the potential to be invasive in TNWK were found, namely Actinoscirpus grossus, Clidemia hirta, Chromolaena odorata, Fimbristylis ovata, Hyptis capitata, Imperata cylindrica, Isachne globosa, Lantana camara, Melaleuca leucadendron, Melastoma malabathricum, dan Mimosa pigra.