In the forest economics literature, Faustmann formula is highly adopted for profit maximization problem in forest management, mostly in plantation forest. Stylized models of Faustmann formula to be applied in selective logging regime have also been studied extensively in multi-age and multi-species forest. In general, natural forest managers in Indonesia have not adopted the Faustmann formula in their management decisions. Sustainability aspect in natural forest management is applied based on silvicultural consideration, i.e. measuring residual stand that is able to be harvested in the next cutting cycle. This study aims to analyze the application of Faustmann formula in the current selective logging regime in Indonesia (i.e. TPTI), so that the natural forest managers may gain maximum profit and sustainable. This study is a qualitative research based on literature review. The results of this study show that under deterministic growth model (i.e. matrix transition model) and robust damage model (i.e. transition matrix with different damage proportions on each species and diameter class), the Faustmann formula can be applied for selective Logging regime in Indonesia. Keywords: Faustmann formula, selective logging, natural forest, Indonesia
{"title":"The Study of Faustmann Formula Application in Sustainable Natural Forest Management in Indonesia","authors":"Y. Indrajaya","doi":"10.20886/jwas.v5i1.4109","DOIUrl":"https://doi.org/10.20886/jwas.v5i1.4109","url":null,"abstract":"In the forest economics literature, Faustmann formula is highly adopted for profit maximization problem in forest management, mostly in plantation forest. Stylized models of Faustmann formula to be applied in selective logging regime have also been studied extensively in multi-age and multi-species forest. In general, natural forest managers in Indonesia have not adopted the Faustmann formula in their management decisions. Sustainability aspect in natural forest management is applied based on silvicultural consideration, i.e. measuring residual stand that is able to be harvested in the next cutting cycle. This study aims to analyze the application of Faustmann formula in the current selective logging regime in Indonesia (i.e. TPTI), so that the natural forest managers may gain maximum profit and sustainable. This study is a qualitative research based on literature review. The results of this study show that under deterministic growth model (i.e. matrix transition model) and robust damage model (i.e. transition matrix with different damage proportions on each species and diameter class), the Faustmann formula can be applied for selective Logging regime in Indonesia. Keywords: Faustmann formula, selective logging, natural forest, Indonesia","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48550803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Arini, J. Kinho, Melkianus S Diwi, Margareta Christita, J. Halawane, M. F. Fahmi, Y. Kafiar
The purpose of this study is to know the potential diversity of wild fauna (birds, butterflies, reptils , and mammals) in THAL. Inventory of mammal, reptile , and butterfly using line transect method while birds were observed by Ponctuels d'Abundance Indices method (IPA ). The results showed that the potential fauna can be found in THAL as many as 49 species consisting of 36 species of birds, eight species of butterflies, three species of reptiles , and three species of mammals. From 49 fauna species at least nine species were endemic to Sulawesi and 11 species protected by Indonesian law. In the future development of THAL area, it is expected that management will conserve the condition of wildlife habitat in order to stay natural. Keywords: Diversity, fauna, Kaki Dian, Klabat, North Minahasa .
本研究的目的是了解该地区野生动物(鸟类、蝴蝶、爬行动物和哺乳动物)的潜在多样性。哺乳动物、爬行动物和蝴蝶采用样线法调查，鸟类采用丰度指数法(IPA)调查。结果表明，该地区可发现的潜在区系多达49种，其中鸟类36种，蝴蝶8种，爬行动物3种，哺乳动物3种。在49种动物群中，至少有9种是苏拉威西岛特有的，11种受印度尼西亚法律保护。在未来的发展中，期望管理部门保护野生动物栖息地的条件，以保持自然。关键词:多样性，动物群，Kaki Dian, Klabat, North Minahasa
{"title":"Wildlife Diversity for Ecotourism at Aqua Lestari Forest Park, North Minahasa","authors":"D. Arini, J. Kinho, Melkianus S Diwi, Margareta Christita, J. Halawane, M. F. Fahmi, Y. Kafiar","doi":"10.20886/JWAS.V5I1.4319","DOIUrl":"https://doi.org/10.20886/JWAS.V5I1.4319","url":null,"abstract":"The purpose of this study is to know the potential diversity of wild fauna (birds, butterflies, reptils , and mammals) in THAL. Inventory of mammal, reptile , and butterfly using line transect method while birds were observed by Ponctuels d'Abundance Indices method (IPA ). The results showed that the potential fauna can be found in THAL as many as 49 species consisting of 36 species of birds, eight species of butterflies, three species of reptiles , and three species of mammals. From 49 fauna species at least nine species were endemic to Sulawesi and 11 species protected by Indonesian law. In the future development of THAL area, it is expected that management will conserve the condition of wildlife habitat in order to stay natural. Keywords: Diversity, fauna, Kaki Dian, Klabat, North Minahasa .","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48343092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Christita, Iwanuddin Iwanuddin, Y. Kafiar, S. Tabba, H. S. Mokodompit
Nickel mining impact in heavy metal pollution on both soil and water. A method that is widely applied to reduce heavy metal contamination is bioremediation. Selection of bacteria that have potential reduction of heavy metal contamination in soil is very important in bioremediation process. The first step to select the potential bacteria is identification of samples. The purpose of this study is to identify existings bacteria in pond after nickel mining area PT. Antam, East Halmahera. Methods used in this research are isolation and identification of bacteria by conventional methods includes morphological, physiologica , l and biochemical test. Identification using Bergey’s Manual Determinative. The results showed there are 6 genera types of bacteria there are Bacillus, Esherichia , Enterococcus, Pseudomonas , Staphylococcus , dan Klebsiella , with 18 species in water of nickel post mining. Morphologically it is dominated by genus Bacillus as 50 % of the species. The identification of bacteria proved an existence of indigenous bacteria which is resistant to heavy metal stress. Keywords: bacteria, soil, water, contamination, post mining, East Halmahera
{"title":"Identification of Water Bacteria from Nickel Post Mining in East Halmahera","authors":"M. Christita, Iwanuddin Iwanuddin, Y. Kafiar, S. Tabba, H. S. Mokodompit","doi":"10.20886/jwas.v5i1.4265","DOIUrl":"https://doi.org/10.20886/jwas.v5i1.4265","url":null,"abstract":"Nickel mining impact in heavy metal pollution on both soil and water. A method that is widely applied to reduce heavy metal contamination is bioremediation. Selection of bacteria that have potential reduction of heavy metal contamination in soil is very important in bioremediation process. The first step to select the potential bacteria is identification of samples. The purpose of this study is to identify existings bacteria in pond after nickel mining area PT. Antam, East Halmahera. Methods used in this research are isolation and identification of bacteria by conventional methods includes morphological, physiologica , l and biochemical test. Identification using Bergey’s Manual Determinative. The results showed there are 6 genera types of bacteria there are Bacillus, Esherichia , Enterococcus, Pseudomonas , Staphylococcus , dan Klebsiella , with 18 species in water of nickel post mining. Morphologically it is dominated by genus Bacillus as 50 % of the species. The identification of bacteria proved an existence of indigenous bacteria which is resistant to heavy metal stress. Keywords: bacteria, soil, water, contamination, post mining, East Halmahera","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44925582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this research is to compare the intensity attack of G. agamemnon on monoculture and manglid agroforestry patterns , to identify G. agamemnon parasitoid and to compare the level of parasitization on monoculture and manglid agroforestry patterns. The method used is direct observation of manglid with parameters such as G. agamemnon intensity attack on monocultur and agroforestry, morphology identification of parasitoid type and parasitization level on monoculture and agroforestry. The results showed that G. agamemnon attack on monoculture pattern reached 39.25 % and 25.75 % on agroforestry pattern. The type of parasitoid that attacks G. agamemnon larvae is Diaparsis sp. Parasitization of Diaparsis sp . on monoculture and agroforestry manglid pattern were 55.00 % and 66.67%. Keywords: D iaparsis, G raphium, manglid , parasitoid , pest.
{"title":"The Intensity Attack of Leaf Pest Graphium agamemnon L. and Its Parasitoid Potency on Monoculture and Agroforestry Manglid (Magnolia champaca) Patterns","authors":"E. Suhaendah, A. Winara","doi":"10.20886/JWAS.V5I1.4165","DOIUrl":"https://doi.org/10.20886/JWAS.V5I1.4165","url":null,"abstract":"The purpose of this research is to compare the intensity attack of G. agamemnon on monoculture and manglid agroforestry patterns , to identify G. agamemnon parasitoid and to compare the level of parasitization on monoculture and manglid agroforestry patterns. The method used is direct observation of manglid with parameters such as G. agamemnon intensity attack on monocultur and agroforestry, morphology identification of parasitoid type and parasitization level on monoculture and agroforestry. The results showed that G. agamemnon attack on monoculture pattern reached 39.25 % and 25.75 % on agroforestry pattern. The type of parasitoid that attacks G. agamemnon larvae is Diaparsis sp. Parasitization of Diaparsis sp . on monoculture and agroforestry manglid pattern were 55.00 % and 66.67%. Keywords: D iaparsis, G raphium, manglid , parasitoid , pest.","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45712716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The multisectoral, multidisciplinary, multi-stakeholder and multidimensional watersheds problems are the consequences of multifunctional watersheds. The complexity of these problems demanding a system and management approach that appropriate with the characteristics and typology of the watershed. This study aims to analyze the characteristics and typology of Mapili watershed West Sulawesi Province. This research was conducted using surveys, primary, and secondary data collection. Application of geographic information system (GIS) with overlay maps and scoring was used. The results showed that Mapili biogeophysical characterization includes meteorology, morphology, morphometry, hydrology, watershed capability and socioeconomic, cultural and institutional characterization will influence the system of Mapili watershed management. Mapili watershed can be classified into two typology watershed, namely: typology II, which has a low total population density (97 people/km 2 ) with high rainfall (>2500 mm/yr); and typology IV, which has a high total population density (377 people/km 2 ) with low rainfall (<1500 mm/yr). Both typologies have different characteristics of watershed problems. Typology II is generally located in the central area and upstream Mapili and Typology IV are located in the downstream areas of Mapili watershed. Keywords: Watershed characteristic, watershed typology, GIS, Mapili watershed
{"title":"Analysis of Characteristics and Typology of Mapili Watershed West Sulawesi Province","authors":"W. Isnan, H. Hasnawir","doi":"10.20886/JWAS.V5I1.4108","DOIUrl":"https://doi.org/10.20886/JWAS.V5I1.4108","url":null,"abstract":"The multisectoral, multidisciplinary, multi-stakeholder and multidimensional watersheds problems are the consequences of multifunctional watersheds. The complexity of these problems demanding a system and management approach that appropriate with the characteristics and typology of the watershed. This study aims to analyze the characteristics and typology of Mapili watershed West Sulawesi Province. This research was conducted using surveys, primary, and secondary data collection. Application of geographic information system (GIS) with overlay maps and scoring was used. The results showed that Mapili biogeophysical characterization includes meteorology, morphology, morphometry, hydrology, watershed capability and socioeconomic, cultural and institutional characterization will influence the system of Mapili watershed management. Mapili watershed can be classified into two typology watershed, namely: typology II, which has a low total population density (97 people/km 2 ) with high rainfall (>2500 mm/yr); and typology IV, which has a high total population density (377 people/km 2 ) with low rainfall (<1500 mm/yr). Both typologies have different characteristics of watershed problems. Typology II is generally located in the central area and upstream Mapili and Typology IV are located in the downstream areas of Mapili watershed. Keywords: Watershed characteristic, watershed typology, GIS, Mapili watershed","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48769095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Non-timber forest products (NTFPs) are forest resources which have comparative advantage and in direct contact with the community. Masoi ( Cryptocarya masoia ) is one of mainstay Papua NTFPs. This essential oil that produced through bark distillation, used as aromatic raw materials for food, medicines, perfume,s and aromatherapy. The demands of masoi oil are high for domestic and foreign market. This study aimed to formulate development strategy of masoi as non-timber forest products in Teluk Bintuni regency, Papua Barat Province, by identifying external factors (Opportunities, threats) and internal factors (strengths, weaknesses). The research applied SWOT analysis methods by identifying external factors (EFAS) and internal factors (IFAS) as strength, weaknesses, opportunities, and threats. Based on SWOT analysis which conducted by calculate score of external factors and internal factors, the suitable strategy was WO strategy which utilized opportunities to suppress the weaknesses at third quadrant. The third quadrant tended turn around by 1). Socialization and training of masoi cultivation on indigenous people, 2). Legal Counseling to increase legal awareness of the community to overcome land disputes. Keywords: strategy, development, masoi, nontimber forest products (NTFPs), SWOT
{"title":"Development Strategy of Masoi (Cryptocarya massoia (Oken) Kosterm.) as Non-Timber Forest Products in Teluk Bintuni, West Papua With SWOT Analysis","authors":"B. W. Hastanti, Relawan Kuswandi, Julanda Noya","doi":"10.20886/jwas.v5i1.4202","DOIUrl":"https://doi.org/10.20886/jwas.v5i1.4202","url":null,"abstract":"Non-timber forest products (NTFPs) are forest resources which have comparative advantage and in direct contact with the community. Masoi ( Cryptocarya masoia ) is one of mainstay Papua NTFPs. This essential oil that produced through bark distillation, used as aromatic raw materials for food, medicines, perfume,s and aromatherapy. The demands of masoi oil are high for domestic and foreign market. This study aimed to formulate development strategy of masoi as non-timber forest products in Teluk Bintuni regency, Papua Barat Province, by identifying external factors (Opportunities, threats) and internal factors (strengths, weaknesses). The research applied SWOT analysis methods by identifying external factors (EFAS) and internal factors (IFAS) as strength, weaknesses, opportunities, and threats. Based on SWOT analysis which conducted by calculate score of external factors and internal factors, the suitable strategy was WO strategy which utilized opportunities to suppress the weaknesses at third quadrant. The third quadrant tended turn around by 1). Socialization and training of masoi cultivation on indigenous people, 2). Legal Counseling to increase legal awareness of the community to overcome land disputes. Keywords: strategy, development, masoi, nontimber forest products (NTFPs), SWOT","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43081418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aimed to know the dynamic of survival rate and growth of Rhizophora mucronata Lamk which planted by using propagules at Alo Beach, Karakelang Island, Talaud. The study was conducted from June 2013 to April 2017, used a complete randomized design with 6 treatments i.e. K1, K2, K3, K4, K5, K6. The amount of propagule s in every treatment were 100 pieces each. The parameter observed were characteristic of substrat, survival rate,height and diameter of the plant’s in age of 1.5 months and 48 months. The results showed that treatment had a significant effect on survival rate and growth of Rhizophora mucronata plants. The rehabilitation was categorized as success at 1.5 months old, but it was failed in the 48 months. Beside waves and tides, low substrat nutrition became the main factor that affect the success of mangrove rehabilitation in Alo Beach.The K5 treatment has the highest survival and growth rate of the plant. The K5 treatment using pnematophore as brace, while planting without brace/K1 has lowest survival and growth rate since months old. Keywords: mangroves, rehabilitation, Rhizophora mucronata , Talaud
{"title":"Mangrove Rehabilitation at Alo Beach (Karakelang Islands, Talaud) Using Propagul of Rhizophora mucronata Lamk","authors":"A. Suryawan","doi":"10.20886/JWAS.V4I2.3048","DOIUrl":"https://doi.org/10.20886/JWAS.V4I2.3048","url":null,"abstract":"This study aimed to know the dynamic of survival rate and growth of Rhizophora mucronata Lamk which planted by using propagules at Alo Beach, Karakelang Island, Talaud. The study was conducted from June 2013 to April 2017, used a complete randomized design with 6 treatments i.e. K1, K2, K3, K4, K5, K6. The amount of propagule s in every treatment were 100 pieces each. The parameter observed were characteristic of substrat, survival rate,height and diameter of the plant’s in age of 1.5 months and 48 months. The results showed that treatment had a significant effect on survival rate and growth of Rhizophora mucronata plants. The rehabilitation was categorized as success at 1.5 months old, but it was failed in the 48 months. Beside waves and tides, low substrat nutrition became the main factor that affect the success of mangrove rehabilitation in Alo Beach.The K5 treatment has the highest survival and growth rate of the plant. The K5 treatment using pnematophore as brace, while planting without brace/K1 has lowest survival and growth rate since months old. Keywords: mangroves, rehabilitation, Rhizophora mucronata , Talaud","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"4 1","pages":"69-78"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45532471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research aimed to determinate the type of adaptive plant and its potential of phytoremediations on nickel revegetation land, PT. Vale Indonesia Tbk. Pomalaa site Kolaka Regency. The research was carried out in March - October 2016, with stages of explation and identification of adaptive plant species as well as analysis of nicel leaves and soil content using HNO3 or HClO4 method and (AAS) Atomic Absorbtion Spectrophotometry test. 12 types of adaptive plants from 12 genera and 10 family. That grow naturally on nickel revegetation land PT. Vale Indonesia Tbk. site Pomalaa. Species from tree habitus thet freguently found, namely Gymnostoma sumatrana , Sarcotheca celebica , Parinaria corymbosa , Timonius celebicus , Weinnmania fraxinea , Alstonia macrophylla . Based on analysis result, there four species that was categorized as low acummulator Nepenthes maxima , Cheilanthes tenuifolia , Timonius celebicus , Sarcotheca celebica . The highest absorber is S. celebica with nickel content 595 mg/kg dry weight leaves. S. celebica potential to be developed as nickel phytoremedian. Keywords: phytoremediation, nickel, Sarcotheca celebica , Ultramafic
{"title":"Potential of Nickel (Ni) Phytoremediation of Adaptive Species on Revegetation Land, PT. Vale Indonesia (Tbk). Pomalaa Site Kolaka Regency","authors":"F. Tuheteru, A. Arif, M. Rajab","doi":"10.20886/jwas.v4i2.2855","DOIUrl":"https://doi.org/10.20886/jwas.v4i2.2855","url":null,"abstract":"This research aimed to determinate the type of adaptive plant and its potential of phytoremediations on nickel revegetation land, PT. Vale Indonesia Tbk. Pomalaa site Kolaka Regency. The research was carried out in March - October 2016, with stages of explation and identification of adaptive plant species as well as analysis of nicel leaves and soil content using HNO3 or HClO4 method and (AAS) Atomic Absorbtion Spectrophotometry test. 12 types of adaptive plants from 12 genera and 10 family. That grow naturally on nickel revegetation land PT. Vale Indonesia Tbk. site Pomalaa. Species from tree habitus thet freguently found, namely Gymnostoma sumatrana , Sarcotheca celebica , Parinaria corymbosa , Timonius celebicus , Weinnmania fraxinea , Alstonia macrophylla . Based on analysis result, there four species that was categorized as low acummulator Nepenthes maxima , Cheilanthes tenuifolia , Timonius celebicus , Sarcotheca celebica . The highest absorber is S. celebica with nickel content 595 mg/kg dry weight leaves. S. celebica potential to be developed as nickel phytoremedian. Keywords: phytoremediation, nickel, Sarcotheca celebica , Ultramafic","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"4 1","pages":"89-96"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42768259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bear cuscus ( Ailurops ursinus ) which is vulnerable in the IUCN Redlist, is one of the endemic protected animal that lives in the lowland forests of Sulawesi. This research aimed to identify habitat characteristics, diet, and daily activities of bear cuscus in Tanjung Peropa Wildlife Reserve, Southeast Sulawesi. This research was carried out from February to March 2017. Habitat characteristics were identified using vegetation analysis, diet were identified using direct and non-direct observation, and daily activities were identified using ad-libitum sampling. The highest important value index of tree at the Mobula path and Mata Air path were Pisonia umbellifera (28.33 %) and Chisocheton ceramicus (44.72 %), respectively. The vegetation species diversity was high and the vegetation species evenness was distributed. A total of 80 species of plants were recorded which are the potential diet of bear cuscus. The highest percentage parts of plants that bear cuscus consumed were shoot (36.19 %) and young leaves (36.19 %). Bear cuscus daily activities were resting (89.05 %), moving (5.83 %), foraging (2.71 %), and feeding (2.41%). Bear cuscus preferred the C stratum of vegetation for their daily activities. Keywords: bear cuscus, daily activities, diet, habitat characteristics, Sulawesi
{"title":"Habitat Characteristics and Diet of Bear Cuscus (Ailurops ursinus) in Tanjung Peropa Wildlife Reserve, Southeast Sulawesi","authors":"R. Nugraha, A. Mustari","doi":"10.20886/JWAS.V4I2.3981","DOIUrl":"https://doi.org/10.20886/JWAS.V4I2.3981","url":null,"abstract":"Bear cuscus ( Ailurops ursinus ) which is vulnerable in the IUCN Redlist, is one of the endemic protected animal that lives in the lowland forests of Sulawesi. This research aimed to identify habitat characteristics, diet, and daily activities of bear cuscus in Tanjung Peropa Wildlife Reserve, Southeast Sulawesi. This research was carried out from February to March 2017. Habitat characteristics were identified using vegetation analysis, diet were identified using direct and non-direct observation, and daily activities were identified using ad-libitum sampling. The highest important value index of tree at the Mobula path and Mata Air path were Pisonia umbellifera (28.33 %) and Chisocheton ceramicus (44.72 %), respectively. The vegetation species diversity was high and the vegetation species evenness was distributed. A total of 80 species of plants were recorded which are the potential diet of bear cuscus. The highest percentage parts of plants that bear cuscus consumed were shoot (36.19 %) and young leaves (36.19 %). Bear cuscus daily activities were resting (89.05 %), moving (5.83 %), foraging (2.71 %), and feeding (2.41%). Bear cuscus preferred the C stratum of vegetation for their daily activities. Keywords: bear cuscus, daily activities, diet, habitat characteristics, Sulawesi","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"4 1","pages":"55-68"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45430890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aimed to obtain data about far-reaching changes on the total area of mangrove at Air Telang Beach Protected Forest through the interpretation of Landsat 7 imagery data using open source software (Ilwis 2000) in years 2000, 2003, 2006, 2009 and 2012. In the first phase, mangrove identification was conducted through cropped imagery data based on the research area which is path 124 raw 62 using RGB543 composite band. Then, mangrove and non-mangrove area are separated using unsupervised classification method. The next phase, mangrove density analysis is directed by applying NDVI formula. The results showed that the total area of mangrove has decreased over a period of 12 years by 10.72 % of total mangrove area on 2000 (7,968.54 ha) with 7,147.12 on 2012. Vegetation Index analysis shows high density mangrove is dominated although it continues to decrease, followed by increasing mangrove area with medium density. Keywords: Air Telang Beach Protected Forest, imagery data, mangrove total area, density.
本研究旨在利用开源软件(Ilwis 2000)对2000年、2003年、2006年、2009年和2012年的Landsat 7图像数据进行解译，获得Air Telang Beach保护区红树林总面积的深远变化数据。第一阶段采用RGB543复合波段，以124 raw 62路径为研究区，通过裁剪影像数据进行红树林识别。然后，采用无监督分类方法对红树林和非红树林区域进行分离。下一步，应用NDVI公式指导红树林密度分析。结果表明:红树林总面积在12年间减少了10.72%，从2000年的7,968.54 ha减少到2012年的7,147.12 ha;植被指数分析显示，高密度红树林占主导地位，但持续减少，其次是中密度红树林面积增加。关键词:空中特朗海滩保护区，影像数据，红树林总面积，密度。
{"title":"The Changes in Vast Mangrove Area of Pantai Air Telang Protected Forest Banyuasin District using Landsat Imagery Data Time Series","authors":"Vina Fitriana, R. A. Suwignyo, S. Fauziyah","doi":"10.20886/JWAS.V4I2.3198","DOIUrl":"https://doi.org/10.20886/JWAS.V4I2.3198","url":null,"abstract":"This study aimed to obtain data about far-reaching changes on the total area of mangrove at Air Telang Beach Protected Forest through the interpretation of Landsat 7 imagery data using open source software (Ilwis 2000) in years 2000, 2003, 2006, 2009 and 2012. In the first phase, mangrove identification was conducted through cropped imagery data based on the research area which is path 124 raw 62 using RGB543 composite band. Then, mangrove and non-mangrove area are separated using unsupervised classification method. The next phase, mangrove density analysis is directed by applying NDVI formula. The results showed that the total area of mangrove has decreased over a period of 12 years by 10.72 % of total mangrove area on 2000 (7,968.54 ha) with 7,147.12 on 2012. Vegetation Index analysis shows high density mangrove is dominated although it continues to decrease, followed by increasing mangrove area with medium density. Keywords: Air Telang Beach Protected Forest, imagery data, mangrove total area, density.","PeriodicalId":31303,"journal":{"name":"Jurnal Wasian","volume":"4 1","pages":"109-118"},"PeriodicalIF":0.0,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46497413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：