Rizmoon N Zulkarnaen

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• Biology Conservation
• PhD Student at Universiti Brunei Darussalam

Alocasia suhirmaniana Yuzammi & A. Hay belongs to the Araceae family and has the potential for ornamental use. Nevertheless, this plant exhibits a limited leaf count and pliable leaf stems, necessitating the application of breeding techniques for its improvement. One important strategy empeloyed to improve the quality of ornamental plants is the br...

Urbanization significantly changes landscapes, making urban areas highly susceptible to invasive plant species. This study examines Brunei Darussalam, where rapid urban development and rich biodiversity present unique challenges by systematically surveying invasive plant species in urban Brunei. The research identified two invasive plant species ea...

Mangrove forests are vital for coastal protection, biodiversity, and local livelihoods but face significant threats such as erosion, land-use changes, sedimentation, and waste pollution. This study assessed the diversity, dominance, and evenness of the mangrove ecosystem in Mojo Village, Ulujami District, Pemalang Regency, an area impacted by coast...

The southern American genus Praxelis Cass. has 18 species. In Singapore and Indonesia, notably Java, P. clematidea R.M.King & H.Rob. has naturalised. The first record in Indonesia was in Bogor in 2018, although it is unverified elsewhere. Praxelis clematidea was found in Bangka, Belitung, Jambi, Lampung, and Palangka Raya during our exploratory fie...

Botanical Garden is an ex-situ plant conservation area with documented plant collections, especially species of scarce, endangered, and endemic species. Bogor Botanical Garden has 25 collection plots, and this research focused on collection plots V (V.A., V.B., and V.C.). The study aims to estimate the percentage of trees in healthy condition and t...

The Bogor Botanical Garden (BBG) is a pivotal center for plant research and conservation, boasting a diverse collection of over 12,000 individual plants spanning various species. However, among the plant collections at BBG, some of them have the potential to be invasive. Therefore, this study aimed to uncover the plant collections at BBG with invas...

Pinanga javana Blume yang terdaftar dalam daftar merah IUCN, juga dikenal sebagai Pinang Jawa, sebagai spesies yang dilindungi dan terancam punah yang endemik di pulau Jawa, Indonesia. Penelitian ini fokus mempelajari proses perkecambahan dan pertumbuhan bibit P. javana dengan menggunakan empat jenis media tanam yaitu cocopeat, sekam, pasir, dan se...

Masyarakat Lereng Gunung Slamet memiliki pengetahuan diversifikasi satuan lanskap yang didasarkan atas fungsi, karakteristik, dan kepemilikan. Tujuan penelitian ini adalah untuk mempelajari struktur komunitas satuan lanskap yang dimanfaatkan oleh Masyarakat Lereng Gunung Slamet. Penelitian dilakukan pada bulan Juli 2019 — Januari 2020 di desa Leren...

Widjaya AH, Latifah D, Primananda E, Zulkarnaen RN, Rahayu A. 2024. Seed viability assessment of Campolay fruits (Lucuma campechiana) across varying weights and storage periods. Nusantara Bioscience 16: 23-28. Campolay (Lucuma campechiana Kunth), a locally cultivated fruit in West Java, Indonesia, has become popular in gardens and yards, although i...

Background Essential oils are natural products of aromatic plants with numerous uses. Essential oils have been traded worldwide and utilized in various industries. Indonesia is the sixth largest essential oil producing country, but land degradation is a risk to the continuing extraction and utilization of natural products. Production of essential o...

Saurauia pendula Blume is a species of genus Saurauia and belong to Actinidiaceae family. Saurauia pendula spread over on several highlands or mountains in Java Island. Mount Slamet is the second highest mountain on Java with naturally good vegetations. The existence of several threats such as forest fires, destruction, deforestation and forest deg...

The use of native trees is necessary for land restoration and the sequestration of carbon that is stored in forest biomass production in Indonesia. Meanwhile, the biomass prediction model used for native tropical lowland trees of Indonesia is limited to only specific locations and focuses on aboveground biomass (AGB). This study aimed to select and...

Sorghum (Sorghum bicolor (L.) Moench) is the fifth most produced cereal crop in the world. The use of sorghum is very diverse and most parts of the plant, including stem, leaves, grain, panicles, stem juice, and bagasse, can be utilized as human food, animal feed, and material for industry and bioenergy production. The collection of local sorghum g...

Masyarakat lokal diketahui memiliki pengetahuan, pengalaman, dan ketrampilan yang berhubungan dengan pengelolaan sumber daya alam yang diperoleh secara turun temurun, termasuk masyarakat Jawa di lereng Gunung Slamet. Tujuan penelitian ini adalah mengungkapkan cara pengelolaan lanskap berdasarkan kearifan masyarakat dan menganalisis struktur komunit...

Vatica javanica subsp. javanica is only found in Ciangir and Halimun in West Java, Indonesia. A more than 20-year-old evaluation led to the designation of the subspecies as Critically Endangered. Furthermore, the subspecies is currently not present in ex-situ collections. To enhance the conservation of the species, in the present study we conduct p...

Koto Mahligai Temple is a cultural heritage site in the Muaro Jambi Regency. Environmental disturbances, especially plant-related ones, are rare at this precious shrine. As a result, plant diversity is still sustained. The research aimed to evaluate the plant diversity and general vegetation condition in the Koto Mahligai Temple. The method used wa...

It has been 23 years since the conservation status of highland tropical pitcher plant Nepenthes talangensis was assessed in 2000. A number of existing threats (anthropogenic and environmental) may be increasing the risk of extinction for the species. A better understanding of the ecology and conservation needs of the species is required to manage t...

Medicinal plants are important for human life and wellbeing. Worryingly, climate change and severe weather have become serious threats to the diversity and sustainable use of medicinal plants. The aim of this work is to present the most current information on the impact of climate change on the world’s medicinal plant species, with special emphasis...

The assessment of plant extinction is strongly influenced by the number of populations and the number of localities found for the species target. A larger population and a large number of localities, the results of the assessment will be easier to conclude. However, if the population and location of the plant are not known, even if there is only on...

Preservation effort to prevent tree collections loss even on aged trees (> 100 years old) is one of important missions in Bogor Botanical Garden since its establishment in 1817. Abiotic factors such as global warming and biotic factors from pests and diseases can threaten the survival of aged tree collections. Their survival is also influenced by p...

Lithocarpus kostermansii Soepadmo (Fagaceae) is an endemic tree confined to the western part of Java Island, Indonesia. The IUCN Red List classifies the species as Endangered (EN) based on the assessment conducted more than 20 years ago. The species is not known to be present in ex-situ collections. After more than 5 decades since the last herbariu...

Nenga gajah J. Dransf. is an endemic palm species originating from the island of Sumatra. The palm is one of the collections of the Bogor Botanic Gardens with seven collection numbers of N. gajah from Jambi and Riau. However, the reproduction information of the palm is still unknown until now. Information on the phenology of flowering is essential...

Pelagodoxa henryana Becc. (Arecaceae) is a native palm species to Marquesas Island (French Polynesia). According to IUCN Red List, the species has a Critically Endangered (CR) status. The growth of the six existing specimens at Bogor Botanic Gardens (BBG) experiences problems caused by environmental conditions. This study aimed to analyze habita...

Bogor Botanical Garden (BBG) is a conservation site with various type of collections such as threatened palm species, including Pelagodoxa henryana Becc. which has been categorized as critically endangered species. During its development, some of the plants did not grow optimal due to insect pests attack. The purpose of the study was to identify in...

Background: Java is the most populous island in the world. This high population and the extensive economic activities have significantly reduced the forest areas of the Island and have greatly increased the pressure on its plant diversity. Compared to those with a wide distribution, endemic plants with a narrow geographic range are more vulnerable...

Bogor Botanic Gardens is an ex-situ plant conservation area in Indonesia. Since BBG is 103 years old, many collections are 100 years old or older. These antique collections may sustain damage, such as broken or collapsing, endangering visitors and employees. As a result, monitoring tree health at BBG is a critical task. According to the tree health...

Tree health monitoring of risky trees is necessary, especially in areas with a high level of accessibility, such as in hotels and tourist areas. The increased accessibility of hotel visitors and the green space require increased awareness of the risk of falling trees. This research aimed to estimate the amount of internal decay and damage of living...

The discovery of Pinaga javana Blume in Mount Ungaran is new information for the distribution of this palm because there was no record of this palm on Mount Ungaran. Therefore, to reveal the population of P. javana in Mount Ungaran, this research was carried out to determine the population structure and habitat preference of P. javana. The study fo...

The palm plant group exists widespread in the world, including in Indonesia. The palm population occupies limited and specific scope areas. Palm diversity on Mt Slamet of Central Java, Indonesia, has not been reported. This study aimed to reveal the existence of palm diversity that occupies different sides of Mt. Slamet, i.e., the southern, the eas...

The conservation of species should be based on knowledge of habitat requirements, population structure and conservation status. This knowledge is quite important to design conservation areas for species and to promote long-term persistence. In this study, we investigated habitat suitability, population size structure and conservation status of Pina...

Bogor Botanic Gardens (BBG) is an ex-situ plant conservation area with thousands of plant collections. The trees of the Lauraceae in BBG experienced the highest number of deaths among other families. However most of them were categorized as young planting years (0-15 years). A tree health monitoring in the Lauraceae needs to be conducted to provide...

Reassesment Beilschmiedia lancifolia (CR), endemic plant of Mt. Ungaran

AbstrakArea konservasi ex situ, Ecopark Cibinong Science Center-Botanic Gardens (CSC-BG), membutuhkan strategi pemeliharaan tanaman koleksi yang tepat untuk mendukung kesehatan dan keberlanjutan koleksinya. Serangan benalu atau tumbuhan parasit tidak hanya dapat merusak estetika, namun juga menghambat pertumbuhan dan perkembangan, bahkan membunuh t...

There is a huge potential of upland for developing food crops to shortage the increase in rice production in Indonesia. Upland rice that adaptable to dry land could support national rice production. Among the limit factors of upland rice productivity in Indonesia are infertile land and cultivation practices. The purpose of the study was to find out...

Hutan rakyat adalah hutan yang dikembangkan di lahan milik masyarakat dan bukan di kawasan hutan. Keragaman tumbuhan penyusun hutan rakyat bergantung pada kepentingan masing-masing pemilik lahan. Salah satu praktik hutan rakyat yang lestari berada di Desa Sambak, Kecamatan Kajoran, Kabupaten Magelang. Hal tersebut terlihat dari tingkat partisipasi...

Saurauia is belong to Actinidiaceae family. Saurauia spreading naturally in several highlands in Indonesia including Slamet Mountain. Some species of Saurauia had been used as traditional medicines for diabetes, cancer, and cholesterol. The population of Saurauia in Indonesia has been greatly reduced. This study aims to determine its distribution,...

Helmanto H, Nisyawati, Robiansyah I, Zulkarnaen RN, Fikriyya N. 2020. Habitat preference and spatial distribution model of threatened species Saurauia microphylla in Mt. Slamet, Central Java, Indonesia. Biodiversitas 21: 2946-2954. Saurauia microphylla de Vriese has the potentials for medicinal uses, yet it is listed in the IUCN Red List under Vuln...

Usmadi D, Witono JR, Lestari R, Widyatmoko D, Magandhi M, Robiansyah I, Rachmadiyanto AN, Purnomo DW, Zulkarnaen RN, Rivai RR, Helmanto H, Yudaputra A, Damayanti F. 2020. Plant diversity and composition at three Imperata grasslands in Bogor, Katingan, and Kupang, Indonesia. Biodiversitas 21: 2804-2813. Imperata grassland is among the largest propor...

The establishment of the Indonesian Botanic Gardens has shown significant progress over the past ten years, especially in the program of Regional Botanic Gardens. The Regional Botanical Gardens development program manifests LIPI's real contribution in applying science and technology for environmental sustainability and community welfare. The progra...

Zulkarnaen RN, Garvita RV, Wawangningrum, H, Tyas KN. 2020. Population ecology size and habitat preference of the ghost orchid Didymoplexis pallens in Bogor Botanic Gardens, Indonesia. Biodiversitas 21: 2056-2061. Didymoplexis pallens is a terrestrial orchid that has leafless characteristics. The population ecology of D. pallens is still not widely...

Pinanga javana is an endemic palm species that only grows on Java, especially in the montane forest. Information about the ecology of P. javana has not been widely revealed, especially concerning growth and distribution patterns in nature. The data is needed to support the success of this type of conservation effort. The study aimed to explain the...

Damayanti F, Astuti IP, Zulkarnaen RN, Sunarti S. 2020. Nutritional contents and the utilization of Indonesian native starfruit: Averrhoa dolicocarpa and A. leucopetala. Biodiversitas 21: 1303-1309. Averrhoa dolicocarpa Rugayah & Sunarti and Averrhoa leucopetala Rugayah & Sunarti (wild starfruits) are new species of starfruit native to Indonesia. B...

Latifah D, Wardani FF, Zulkarnaen RN. 2020. Seed germination, seedling survival and storage behavior of Koompassia excelsa (Leguminosae). Nusantara Bioscience 12: 46-49. Koompassia excelsa (Becc.) Taub. (Leguminosae) is an important component of many tropical rainforests as an emergent canopy tree. Knowledge and application of germination strategie...

Pinanga javana merupakan palem endemik pegunungan Jawa

Conservation effort of Pinang Jawa is hampered due to lack of information on its ecology and population biology. The species is an endemic palm species to Java. The study aimed to assess the population study and habitat preference of Pinang Jawa in Mt. Slamet, Central Java. The research design used a purposive sampling method with a plot measuring...

Bogor Botanical Garden has ± 14,000 living plant collections including shrubs, herbs, climber and trees. Tree collections exhibit different characteristics, larger dimensional shapes and can reach old ages. However, trees collections possess some flaws that could result in materials harm and other losses. The aim of this research was to define heal...

Plant collection management is main activity in Center for Plant Conservation Botanic Gardens – Indonesian Institute of Sciences (LIPI) as mandated by Presidentials regulation No. 93 Th 2011. As ex-situ Conservation institution, Botanic Garden has play its role as research, education and recreation center which in turn provide environmental service...

A study on structure and association of ground cover plants commnunity was conducted in Cikiniki Resort, Gunung Halimun Salak National Park, West Java. The aimed of this study was to determine the structure and degree of association of ground cover plant that dominates with others ground cover plants. Plot observation using purposive sampling metho...

A study on structure and association of ground cover plants commnunity was conducted in Cikiniki Resort, Gunung Halimun Salak National Park, West Java. The aimed of this study was to determine the structure and degree of association of ground cover plant that dominates with others ground cover plants. Plot observation using purposive sampling metho...

Rivai RR, Wardani FF, Zulkarnaen RN. 2017. The effect of NPK fertilizer and planting media on plant growth and saponin content of the medicinal plant Anchomanes difformis. Nusantara Bioscience 9: 141-145. Anchomanes difformis (Blume) Engl., belongs to the aroid family (Araceae) and has potential as a medicinal plant. A. difformis has not in the pas...