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Indonesian Journal of Forestry Research
Number of Followers: 1

This is an Open Access Journal

Open Access journal
ISSN (Print) 2355-7079 - ISSN (Online) 2406-8195
Published by Ministry of Environment and Forestry Republic of Indonesia

[1 journal]

LEAF TRAITS OF THE INVASIVE SPECIES Bartlettina sordida (Less.) R.M. King
NATURALIZED IN CIBODAS HIKING TRAIL, MT. GEDE PANGRANGO NATIONAL PARK,
WEST JAVA, INDONESIA
- Authors: Dwinda Mariska Putri, Decky Indrawan Junaedi, Vandra Kurniawan, Muhammad Efendi
  Pages: 1 - 8
  Abstract: Cibodas Botanical Garden (CBG) maintains not only native plant species but also introduced plant species. Some of these have been naturalized from CBG to the adjacent Mt. Gede-Pangrango National Park (GPNP). One of the reported naturalized species is Bartlettina sordida. Understanding species traits will give information for the future management of B. sordida. This research investigates the distribution of B. sordida in the Cibodas hiking trail and studies leaf traits variation of this species along with an altitudinal change in the Cibodas hiking trail. Samples were collected along the Cibodas hiking trail from the entrance gate to the Cibeureum waterfall. At every survey location, we recorded B. sordida occurrences. In the sample plots we also collected leaf samples from detected B. sordida. The leaves were then fixated using the hands-free method to observed stomatal type, density, and size. The leaves were also treated for specific leaf area (SLA) measurements. Stomata size is significantly correlated along the altitudinal gradient. Stomata density is negatively correlated but not significant along the altitudinal gradient. Stomata size is positively correlated with SLA. These traits are related to water-efficient adapting to GPNP climate, which is very different from its natural habitat. The ability to adapt to altitudinal gradient helps B. sordida to dominate the Cibodas hiking trail.
  PubDate: 2022-04-30
  DOI: 10.20886/ijfr.2022.9.1.1-8
  Issue No: Vol. 9, No. 1 (2022)
THE POLARIZATION OF ORIENTATION AMONG STAKEHOLDERS ON INTERPRETATION
SUBJECTS AT GUNUNG GEDE PANGRANGO NATIONAL PARK
- Authors: Helianthi Dewi, Ricky Avenzora, Dudung Darusman, Cecep Kusmana
  Pages: 9 - 28
  Abstract: Interpretation subject is a novel approach to observing resources in the interpretation program. Interpretation programs refer to the efforts to develop an individual's ability to deeply interpret the value of nature for humans through meaningful and pleasant experiences, impressions, and feelings to achieve management goals. The viewpoint of interpretation subject considers the intrinsic value of each resource. These polarization studies provide valuable information on critical issues concerning stakeholder perception and their implications for managing interpretations. The purpose of this study is to analyze and evaluate the characteristics of the interpretation subject that stakeholders thought were crucial in Gunung Gede Pangrango National Park management. The survey was done by distributing questionnaires to related stakeholders (tourists, communities, and area managers/tour operators) and evaluated by cluster analysis, Kruskal-Wallis, and Mann-Whitney test. Although the stakeholder considered flora, language, and abiotic components essential in interpretation, tourists' perception tended to focus on abiotic components and the built natural environment. The research showed that abiotic and cultural component-based-ecotourism-programs shall be developed to ensure sustainable management, increase community participation, and introduce the biological wealth in the national park area
  PubDate: 2022-04-30
  DOI: 10.20886/ijfr.2022.9.1.9-28
  Issue No: Vol. 9, No. 1 (2022)
MANAGEMENT STRATEGY OF ELEPHANT RIDING AT THE ZOO
- Authors: Sata Yoshida Srie Rahayu, Dolly Priatna, Rosadi Rosadi, Suryanto Suryanto
  Pages: 29 - 47
  Abstract: Elephant Riding (ER) in zoos has become a matter of public interest, raising debates among experts regarding animal ethics, elephants’ welfare, and human safety. Through the submission of the Middle Hypothesis that ER tends to enhance human knowledge about conservation, this study’s aim is to provide strategies to help zoo managements in their works based on the basic principles of wildlife conservation and protection, especially Sumatran elephants. The participants’ knowledge was measured using questionnaires distributed to two groups of respondents: people who have and people who have not utilized ER services. Meanwhile, the strategy was recommended through the Analytical Hierarchy Process of 17 expert respondents. According to the independent sample t-test performed with 95% confidence level, human knowledge of elephant conservation increased significantly through ER. Furthermore, experts with consistency ratios (CR) ≤ 0.1 selected a strategy where environmental quality was prioritized as a recommended strategy in ER management. This strategy is to put forward the principles guaranteeing the elephants’ welfare, which has a criterion weight of 0.40717. The other recommended strategies include conducting conservation education (0.23973), ensuring the safety of visitors (0.22972), and improving the welfare of the community around zoo (0.12338).
  PubDate: 2022-04-30
  DOI: 10.20886/ijfr.2022.9.1.29-47
  Issue No: Vol. 9, No. 1 (2022)
KANCILAN FLORES (Pachycephala nudigula nudigula): THE ICONIC BIRD OF
KELIMUTU NATIONAL PARK, INDONESIA
- Authors: Ridwan Fauzi, Aditya Kuspriyangga, Fendra Suarmadi, Teguh Heri Setianto, Grace Serepina Saragih
  Pages: 49 - 62
  Abstract: Kancilan Flores (Pachycephala nudigula nudigula) is an iconic bird of Kelimutu National Park. The bird has a unique characteristic with the ability to make a wide variety of song. The local people call this bird 'Garugiwa' and also 'burung arwah' or 'spirit bird' because it is small and hard to spot but has a loud chirp. Some literature mentions this bird with different scientific names. This study aimed to identify this bird to rectify this misnaming scientifically and to observes Kancilan Flores behavior, habitat, and population. Kancilan Flores is an attractive fauna for tourists. Therefore, this study also recommended potential birdwatching locations for Kancilan Flores. This study used a transect line and direct observation methods. The results showed that the estimated population size of Kancilan Flores in the Kelimutu National Park was 1,667 individuals with a population size range of 1,245–2,089 individuals. The population density of Kancilan Flores was estimated at 0.53 individuals per hectare. The Kancilan Flores is most commonly found at an altitude of 1,500–1,600 m a.s.l. Recommended areas as bird watching locations for Kancilan Flores, namely the Edelweiss Garden, Perekonde, the lower Arboretum, and the Kancilan Flores middle Arboretum. Therefore, it is necessary to protect the population of Kancilan Flores by strictly prohibiting hunting and destruction of their habitat.
  PubDate: 2022-04-30
  DOI: 10.20886/ijfr.2022.9.1.49-62
  Issue No: Vol. 9, No. 1 (2022)
GENETIC RELATIONSHIP OF SEVERAL MORPHOLOGICAL AND MOLECULAR
CHARACTERISTICS OF Phalaenopsis amabilis (L.) Blume ORCHIDS FROM THE
MERATUS MOUNTAINS OF SOUTH KALIMANTAN, INDONESIA
- Authors: Dindin Hidayatul Mursyidin, Muhammad Rubiansyah, Badruzsaufari Badruzsaufari
  Pages: 63 - 72
  Abstract: Phalaenopsis amabilis (L.) Blume orchid is one of the most popular orchid species in the world. However, this ornamental plant is threatened in its natural habitat, the Meratus Mountains of South Kalimantan, Indonesia. This study determines and analyzes the genetic relationship among several morphological characteristics of P. amabilis from this region combined with molecular (RAPD) markers. A total of ten orchid samples comprised of nine moth orchids (P. amabilis) and one species (P. cornu-cervi) as an outgroup, as well as ten RAPD primers were used in this study. Based on the morphological markers, the moth orchids have a moderate level of genetic diversity, indicated by Shannon's index value of 0.5. In contrast to molecular markers, this germplasm shows high genetic polymorphism, shown by the polymorphism degree of 100% for all primers used. The cluster analysis shows that this germplasm can be divided into two clusters for morphological and five for molecular markers. Following these markers, the grouping of moth orchids was nearly corresponding to their origin. Thus, this information could be useful as a reference for orchid conservation and breeding programs in the future.
  PubDate: 2022-04-30
  DOI: 10.20886/ijfr.2022.9.1.63-72
  Issue No: Vol. 9, No. 1 (2022)
MINING FIRE HOTSPOTS OVER NUSA TENGGARA AND BALI ISLANDS
- Authors: Arie Vatresia, Rendra Regen, Ferzha Putra Utama, Widhia Oktariani
  Pages: 73 - 85
  Abstract: Forest fires are still one of the most common problems in Indonesia. In fact, many of these forest fires origin from human activities, namely fires that are intentionally raised for a purpose such as widening the land to prepare for the planting season in the Nusa Tenggara Island. Forest fire events can be identified by observing hotspot data which are monitored through remote sensing satellites. Hotspot is an area that has a relatively higher surface temperature than the surrounding area based on certain temperature thresholds monitored by remote sensing satellites. The area is represented as a point that has certain coordinates. The actual fires can be monitored by observing the hotspot attribute, namely Confidence, Brightness Temperature and FRP (Fire Radiate Power). To find the similarities of the three mentioned attributes, the clustering process is carried out to make monitoring easier. The objective of this research is to cluster hotspots in the Nusa Tenggara and Bali Islands from year 2013 to 2018 using the K-Means Clustering Method with 28,519 hot spot data. This could be a benefit for the Ministry of Environment and Forestry in Indonesia to identify the priority level of the area to be monitored. By knowing this result, the ministry can use this data for patrol priority management. This research successfully clustered three types of hotspot classes based on the risk of fire with details as follow; High Risk Class contains 12,212 data with ranges of mean values of confidence in the range of 49.3–100%, brightness in the range of 305.1–421.3o K and FRP in the range of 2.5–714.3; Medium Risk contains 12,250 data mean values of confidence with a range of 20.3–74.3%, brightness in the range of 301.06–341.86o K and FRP in the range of 3.6–141.4; and Low Risk contains 4,057 data with a range of mean values of confidence in the range of 0–39.8%, brightness in the range of 300–365.86oK and FRP in the range of 3.5–275.6. All of the clusters were obtained by the implementation of K-Means clustering over the hotspot data and its parameter as mentioned, respectively. The cluster performance showed the confidential value of 88.45% accuracy using 100 hotspot data from 2019
  PubDate: 2022-04-30
  DOI: 10.20886/ijfr.2022.9.1.73-85
  Issue No: Vol. 9, No. 1 (2022)
EFFECTS OF GERMINATION ECOLOGY ON IN VITRO GERMINATION PERFORMANCE OF
HIGHLAND BAMBOO (Yushania alpina) SEED COLLECTED FROM KEFA, SOUTH WEST
ETHIOPIA
- Authors: Belete Getnet Tesfaye, Yigardu Mulatu Mengesha, Smegnew Melese Birlie, Marshet Nigatu Gebeyehu
  Pages: 87 - 97
  Abstract: Yushania alpina is an African endemic bamboo species, and it is a valuable resource in ecological and socioeconomically value in Ethiopia. However, low germination is a challenge for seedlings production besides its seed availability is scarce. To improve the seed germination capacity, using different germination ecology treatments are needed. Hence, this study was initiated to investigate the effects of different germination ecology, and to determine the qualities, size, and yield of Y. alpina seed. The collected matured fruits were processed, and then the cleaned (pure) and not cleaned (impure) seed were used for this study. This study had two phases; the first was to measure the purity, moisture content, seed character, seed yield; and the second was to investigate the effects of different germination ecology for in vitro seed germination of Y. alpina using pure and impure seeds. In this result, the purity, moisture content, seed size, seed weight, and grain yield were determined for cleaned Y. alpina seed. The interaction effects of seed type and germination ecology were highly significant on all germination parameters. The highest germination capacity (55%) of pure seed was recorded on T2 (paper + ambient temperature), followed by 38% on T1 (sand +ambient temperature), and 31% on T3 (paper + incubator (25°C)); however, these treatments produced lower results in the impure seed. In addition, the highest (23.5 days) mean germination time was recorded on T3, followed by 13.06 on T2 using impure seed, but the lowest (2.5 and 2.01) value was recorded on T1 and T2 of pure seeds. Hence, this result concluded that using sand media at ambient temperature as germination ecology is preferred to enhance the germination capacity of Y. alpina seed. Also, seed surface disinfection using antifungals is recommended to reduce seed contamination
  PubDate: 2022-04-30
  DOI: 10.20886/ijfr.2022.9.1.87-97
  Issue No: Vol. 9, No. 1 (2022)
UTILIZATION OF CITRIC ACID AS BONDING AGENT IN SEMBILANG BAMBOO
(Dendrocalamus giganteus Munro) PARTICLEBOARD PRODUCTION
- Authors: FIRDA A. SYAMANI, AGUS Z. ARIFQI, SASA S MUNAWAR, SUDARMANTO SUDARMANTO, LILIK ASTARI, KURNIA W. PRASETIYO, MOHAMAD GOPAR, ISMADI ISMADI, SUKMA S. KUSUMAH, MOHD H HUSSIN, SUBYAKTO SUBYAKTO, YUSUF S. HADI, KENJI UMEMURA
  Pages: 99 - 120
  Abstract: Citric acid was utilized as a bonding agent in the production of Sembilang bamboo particleboard. The limitation in using bamboo for particleboard production is that the silica content in bamboo skin can accelerate particleboard processing machines' bluntness and reduce particle adherence in particleboard manufacturing. This research aimed to investigate the influence of bamboo skin and citric acid content on the characteristics of Sembilang bamboo particleboard. Particleboards were prepared using bamboo particles (type A) and unskinned bamboo particles (type B). The citric acid solution (59%) was sprayed over the surface of bamboo particles to obtain three different levels of citric acid, i.e., 15, 20, and 25 % (based on bamboo particles’ dry weight). The Sembilang bamboo particleboards were manufactured using a hot-pressing machine at 200°C, 5 MPa for 10 min. The particleboard targeted density was 0.8 g/cm3. The type B particleboards’ internal bond (IB), modulus of rupture (MOR), water absorption (WA), and thickness swelling (TS) were superior compared to the type A particleboards. This was influenced by the lower concentration of silica in type B particleboards, which tend to allow an intimate contact area among particles and citric acid then produced better quality particleboards compared to type A particleboards. The type B particleboards met the obligation of JIS A 5908 for type 18 particleboard in terms of modulus of rupture, modulus of elasticity, and internal bond, however, only fulfilled the type 8 particleboard in terms of screw holding power. The physical properties of Sembilang bamboo particleboard were also improved when using type B bamboo particles and adhered with citric acid at a level of 25%.
  PubDate: 2022-04-30
  DOI: 10.20886/ijfr.2022.9.1.99-120
  Issue No: Vol. 9, No. 1 (2022)
ORTHOPTERAN DIVERSITY IN TROPICAL ECOSYSTEMS OF CENTRAL KERALA, INDIA
- Authors: Leema Rose Mathew, Gigi K Joseph, Aleena Elizabeth Cyril
  Pages: 121 - 133
  Abstract: Orthoptera is a diverse arthropod taxon that includes locusts, grouse locusts, short-horned grasshoppers, long-horned grasshoppers, katydids, crickets and mole crickets. They play crucial roles in food chains, nutrient cycling and pollination. The diversity of orthopterans in agroecosystems and grasslands located in the highlands and lowlands of Central Kerala were studied from December 2019 toMarch 2020. The study was conducted in Avoly of Ernakulam District and Venmony of Idukki District in Kerala by employing random sampling in 10 x10 m quadrats. A total of 35 species of orthopterans, belonging to two suborders, 10 families, 20 subfamilies, and 33 genera were recorded. Family Acrididae with fourteen species was the most dominant family followed by Tettigoniidae. Two species namely, Chitaura indica and Burrinia burri are endemic to the state of Kerala. It was found that the ranges of most of the orthopteran genera reported in our study extend all over the South East Asian countries. The highest number of Orthoptera was reported in December in both locations and it decreased towards March. Simpson’s diversity index value shows that both regions harbour a highly diverse orthopteran community. The diversity index value of Venmony is comparatively higher which might be due to the proximity of the study site to the natural forest ecosystem and fewer disturbances. More studies on the orthopteran fauna of Kerala are recommended which would help control their pest status and exploit their economic potential as food in animal husbandry
  PubDate: 2022-04-30
  DOI: 10.20886/ijfr.2022.9.1.121-133
  Issue No: Vol. 9, No. 1 (2022)