Research Interests:
Kulim (Scorodocarpus borneensis Becc.) is one of Indonesian wood species with high economic value. Kulim wood is widely used for house construction, bridges and shipbuilding, while its fruit is used for cooking for its garlicy fragrance.... more
Kulim (Scorodocarpus borneensis Becc.) is one of Indonesian wood species with high economic value. Kulim wood is widely used for house construction, bridges and shipbuilding, while its fruit is used for cooking for its garlicy fragrance. Unfortunately, this species is currently rare in the wild due to habitat disturbance. Re-planting efforts require good quality seeds which can be collected from designated seed sources. The aim of this study was to identify the potential of Kulim stand in the arboretum of PT. Arara Abadi, Riau which covers 26.2 ha. Data collected from the site include tree height, diameter, geographic position as well as stand conditions. Total of 152 individual trees (121 trees, 23 poles, 5 saplings and 2 seedlings) were found in the area of study. The area is accessible, relatively safe from interference and well managed. The quality of the stands is quite good with no significant attack from pests or diseases. Fruits, seedlings and saplings were also found in the forest floor. The stand is therefore appropriate to be designated as Identified Seed Stand of Kulim based on the criteria of regulation concerning implementation of forest seeds. This stand can also be reserved as an insitu conservation area of Kulim.
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Ironwood (Eusideroxylon zwageri) is one of Indonesia’s most economically valuable timber tree species and was listed as Vulnerable in 1998 by the IUCN. To support conservation activities and establish E. zwageri’s plantation, good quality... more
Ironwood (Eusideroxylon zwageri) is one of Indonesia’s most economically valuable timber tree species and was listed as Vulnerable in 1998 by the IUCN. To support conservation activities and establish E. zwageri’s plantation, good quality planting stocks should be collected from specific seed sources. Currently, there is only one ironwood seed source in Sumatra that has been registered. This study aimed to assess the potential for an ironwood stand on the KPPN Bulian of the District VIII of PT. Wirakarya Sakti is to be proposed as a seed source. The assessment was conducted on July 2020 by a 100% inventory of ironwood trees in the area of 43 ha. Every individual tree and copy of ironwood was measured for its stem diameter and tree height and observed for its health, flowers, fruits, and seedlings in the ground. In total, 1,029 individual trees, copies and seedlings were recorded. Among them, 116 trees were found to have young fruits and seedlings emergence in the forest floor. Generally, the ironwood stand is sound and meets the criteria to be registered as an identified seed stand of ironwood.
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Local communities surrounding Gunung Halimun Salak National Park are highly dependent on the national park area. Economic development is crucial to improving the livelihood of the local communities around the park area. Additionally, to... more
Local communities surrounding Gunung Halimun Salak National Park are highly dependent on the national park area. Economic development is crucial to improving the livelihood of the local communities around the park area. Additionally, to ensure that the preservation of the national park will be supported by the surrounding communities, activities within the local communities can also align with the management of the national park. In Indonesia, national parks are managed through a zonation system, in which potential areas that satisfy the biophysical conditions will be considered for development activities that support the local communities. We analyze the biophysical condition of the area, zonation of area, and socio-economic conditions of communities to identify the types of potential community development activities. We conducted a survey of biophysical conditions, as well as interviews and focus group discussions with relevant stakeholders. The results of the study reveal five ty...
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Inoculation of arbuscular mycorrhizal (AM) fungi into micropropagated Eucalyptus pellita and Acacia crassicarpa, that may have poor root structures, was conducted. The study aimed to investigate the effects of Acaulospora sp., Acaulospora... more
Inoculation of arbuscular mycorrhizal (AM) fungi into micropropagated Eucalyptus pellita and Acacia crassicarpa, that may have poor root structures, was conducted. The study aimed to investigate the effects of Acaulospora sp., Acaulospora tuberculata, Entrophospora sp., Gigaspora sp., and two different isolates of Glomus maculosum inoculations on the growth parameters of 21-days old plantlets of Eucalyptus pellita and Acacia crassicarpa. After 120 days of acclimatization in the nursery, E. pellita seems to be more responsive to mycorrhizal inoculation than A. crassicarpa. The survival rate of E. pellita was almost three times of the control. Although there was no significant difference between treatments, inoculation of Glomus maculosum RD.1.5.1 and Acaulospora sp. GB.10.A2 showed the highest impact on plant height (54-56 cm), stem diameter (4.3-4.4 mm), and root dry-weight (2.03-2.05 gr) of E. pellita; and Entrophospora sp. RB.10.3.1 on plant height, stem diameter, and root dry-wei...
Research Interests:
Research Interests:
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This study aims to determine the differences in daily behaviour and home range of male and female rehabilitated Javan slow loris (Nycticebus javanicus) in Gunung Sawal Nature Reserve, Ciamis, West Java, Indonesia. The study was conducted... more
This study aims to determine the differences in daily behaviour and home range of male and female rehabilitated Javan slow loris (Nycticebus javanicus) in Gunung Sawal Nature Reserve, Ciamis, West Java, Indonesia. The study was conducted on four individuals of Javan slow loris rehabilitates (two adult males and two adult females) during their post-released monitoring period. Those animals were fitted with a radio transmitter and were monitored for their daily behaviour and home range for six months (May - October 2018). The focal animal sampling method was employed for daily behaviour observation. The home range of each individual was estimated by Minimum Convex Polygon (MCP) and Kernel Density Estimation (KDE) methods. Data analysis was descriptively displayed in maps, tables, and figures. According to the statistical analyses of the Mann Whitney U test, there are no significant differences (μ = 1,074,554.5 [p 0.01]; P-Value 0.238 0.01) in the daily behaviour of male and female Jav...
The Objective of this study is to analyze the potential for biodiversity and traditional knowledge in the buffer zone of the Giam Siak Kecil-Bukit Batu Biosphere Reserve (GSK-BB). The research was conducted descriptively-quantitatively by... more
The Objective of this study is to analyze the potential for biodiversity and traditional knowledge in the buffer zone of the Giam Siak Kecil-Bukit Batu Biosphere Reserve (GSK-BB). The research was conducted descriptively-quantitatively by analyzing two variables, i.e. biodiversity and community traditional knowledge. Biodiversity monitoring report documents from PT Sakato Pratama (PT SPM) and PT Bukit Batu Hutan Alam (PT BBHA), profiles of Temiang and Sepahat villages, questionnaire data taken from village community representatives, as well as the results of in-depth interviews were used in the analysis. The results show that in the PT SPM area, there are 177 species of plants and 55 species of animals. Meanwhile in the PT BBHA area there are 146 species of plants and 46 species of animals. Based on information from the community of Temiang Village, there are 51 species of plants and 18 species of animals, while according to the people of Sepahat Village, there are 73 species of pla...
Selabintana management area is one of the nature tourism areas in the Gunung Gede Pangrango National Park (GGPNP) which located in Sukabumi District, West Java. Within the management area which covers 2,547.93 ha, there is a camping... more
Selabintana management area is one of the nature tourism areas in the Gunung Gede Pangrango National Park (GGPNP) which located in Sukabumi District, West Java. Within the management area which covers 2,547.93 ha, there is a camping ground and waterfall which both are the most attracted for visitors. Efforts are needed to harmonize nature tourism activities with conservation mission, so that visitors can enjoy but the natural environment is maintained. The objective of this research is to determine the carrying capacity for daily tourism and camping activities by considering the aspect of physical, environmental and management aspects. The survey conducted through interviews and questionnaires to 62 tourists, traders and managers of the national park area. The data were analyzed using the carrying capacity assessment method developed by Cifuentes, i.e. calculating the Physical Carrying Capacity (PCC), Real Carrying Capacity (RCC), and Effective Carrying Capacity (ECC). As a result, ...
Forest restoration is needed to improve the condition of degraded ecosystems and boost up the ecological services. The existence of forest areas, especially in Indonesia, cannot be separated from the livelihoods of the people living... more
Forest restoration is needed to improve the condition of degraded ecosystems and boost up the ecological services. The existence of forest areas, especially in Indonesia, cannot be separated from the livelihoods of the people living around them. The purpose of this study was to evaluate whether the feasabiluty of the community-based forest restoration programme, implemented by the Gunung Gede Pangrango National Park Agency (BBGGPNP) and its partners, is feasible and can support efforts to restore forest ecosystem functioning and build community independence in managing the forest ecosystem. This study used the Context, Input, Process and Product (CIPP) method. This is an evaluation model which provides an analytical and rational basis for programme decision-making, based on a cycle of planning, structuring, implementing and reviewing and revising decisions, examined through a different aspect of evaluation –context, input, process and product evaluation. Data were obtained from fiel...
The study of the effect of briquette composition on the seedling survival and growth of Gmelina in the field with the Randomized Group Design (RGD) experimental method. The parameters observed in the seed briquette composition test in the... more
The study of the effect of briquette composition on the seedling survival and growth of Gmelina in the field with the Randomized Group Design (RGD) experimental method. The parameters observed in the seed briquette composition test in the field were seedling diameter, seedling height and life percentage. The data were analyzed by Analysis of Variance (ANOVA) and Duncan's Test using SAS and SPSS programmes to determine the success of the seed briquette composition test. The composition of seed briquette has a significant effect on the survival percentage and growth of direct seeding Gmelina in the field. The application of the composition of B-5 with land preparation in the form of cleaning gives the best percentage of life and growth of Gmelina seedlings. This composition also gave a high growth of 45.29 cm, a diameter of 5.16 cm and a percentage of life of 58.33%. The composition of the B-5 seed briquettes has a proportional composition of the main ingredients in the form of so...
It is our great pleasure to announce that the very first issue of the Indonesian Journal of Applied Environmental Studies (InJAST) is now be available in both print and online. This journal has evolved from the Journal of... more
It is our great pleasure to announce that the very first issue of the Indonesian Journal of Applied Environmental Studies (InJAST) is now be available in both print and online. This journal has evolved from the Journal of Environmental Education which started in 2015, and was managed by the Study Programme of Population and Environmental Education, Graduate Programme of Pakuan University. Because this study programme has now become the Study Programme of Environmental Management, we have decided to establish this new journal to publish scientific articles covering broader environmental issues that are written by the Indonesian students of graduate programmes either in Pakuan and other universities or researchers. Meanwhile, the publication and management of the Journal of Environmental Education will be transferred to another relevant faculty or study programme within Pakuan University.We intend the new InJAST to be published in English (with abstracts both in Engli...
INTRODUCTION We know that there is only one earth, there are many different worlds. Different worldviews do not only have significant political and socio-economic repercussions but they also determine the way in which people... more
INTRODUCTION We know that there is only one earth, there are many different worlds. Different worldviews do not only have significant political and socio-economic repercussions but they also determine the way in which people perceive and interact with nature, thus forming their specific culture. Natural ecosystems cannot be understood, conserved and managed without recognizing the human culture that shape them, since biological and cultural diversities are mutually reinforcing and interdependent. Together, cultural diversity and biological diversity hold the key to ensuring resilience in both social and ecological systems (Erdelen, 2003). Through the environmental sciences and cultural activities, in promoting awareness and understanding of the relationships between biological and cultural diversity as a key basis for sustainable development.Beside has high biological diversity Indonesia also possesses high cultural diversity. It doesn’t marvel that Indonesia is...
This study uses a Completely Randomized Design experimental method (CRD) consisting of three treatments with a range of 5 days, 10 days and 15 days, with each treatment uses three insect specimens. The treatments in this study were; P1... more
This study uses a Completely Randomized Design experimental method (CRD) consisting of three treatments with a range of 5 days, 10 days and 15 days, with each treatment uses three insect specimens. The treatments in this study were; P1 (200 mg ash + 200 ml distilled water), P2 (70% alcohol), and P0 (control). To observe the changes in texture, aroma and color in the inspect specimens, 50 panelists were engaged, who were aged between 17-30 years, that were not color blind and/or reporting any ill health at the time of sampling. Panelists observed the specimens for texture, aroma and color. Resulting data was analyzed using t test, frequency tabulation, histogram data and normality test. The texture testing treatments yielded tcount = 0.02521 (p 0.05) showing no significance between the coconut midrib ash and alcohol preserved samples, with the Ho accepted, so there is no difference in the texture of insect specimens preserved in either coconut midrib ash or alcohol. The aroma test r...
This research is an explorative quantitative survey by testing differences in species of terrestrial mammals found in natural forest (core) and edge forest (ecoton) areas. The data collection was obtained by using camera traps installed... more
This research is an explorative quantitative survey by testing differences in species of terrestrial mammals found in natural forest (core) and edge forest (ecoton) areas. The data collection was obtained by using camera traps installed for 3 months based on a grid cell 2 x 2 km, with a total of 16 camera traps placed in core area and another 17 were in ecotone. The object of this research was medium (0.3 kg) to large terrestrial mammals. The t test was used to determine the differences the species diversity of mammals between two research areas. The study shows that there are 22 species of terrestrial mammals with a total of 552 individuals, which is distributed in both research areas. In the core area there are 18 species with 237 individuals, while in the ecotone there are 18 species with 315 individuals. Analyses the species richness index was 17.8171 for the core area while 17.8262 for the ecotone area. Similarity index in both study areas ranged from 0.7106 to 1. While the val...
The objective of this research is to determine the factors as a typology of hydrometeorological disasters. The research method employed is post-disaster survey activities through hypothetical descriptions from October to December 2020.... more
The objective of this research is to determine the factors as a typology of hydrometeorological disasters. The research method employed is post-disaster survey activities through hypothetical descriptions from October to December 2020. The analysis technique uses factor analysis on five variables, namely runoff, infiltration, slope, land cover, and infrastructure. The data retrieval obtained nine areas of landslide disaster points along 20 kilometers from Kiarapandak Village to Cisangku Village, Sukajaya Subdistrict, Bogor Regency, one of which were the areas affected by landslides in January 2020. From the factorial analysis results, it was found that the five variables above were suitable as a factor for determining disaster based on correlation values (r), that includes Factor 1 which is the variable of land slope (0.855) and the infrastructure variable (0.872). Factor 2 is water infiltration (0.928), water runoff (0.269), and land cover (0.717). In conclusion, the typology of hy...
With this issue, the Indonesia Journal of Applied Environmental Studies (InJAST) enters its second year, having been first published in April 2020 just as the Covid-19 pandemic was spreading globally. In the first two issues, InJAST... more
With this issue, the Indonesia Journal of Applied Environmental Studies (InJAST) enters its second year, having been first published in April 2020 just as the Covid-19 pandemic was spreading globally. In the first two issues, InJAST published 13 articles, which were the results of research and ideas from academia, researchers from the Indonesian Institute of Sciences (LIPI) and members of conservation NGOs. Within its first year, the InJAST website has been visited by around 1,500 visitors from 50+ countries. Although the majority were from Indonesia, 30% were from across Europe, Asia, the Americas, and Africa, and included the USA, UK, Australia, and India.One of InJAST's missions is to provide a vehicle for academia (students and lecturers), members of environmental NGOs, and young researchers, particularly from Indonesia, who are just starting to publish their ideas, literature reviews and research findings or articles in scientific journals. InJAST was also developed to acc...
To be effective, the next generation of conservation practitioners and managers need to be critical thinkers with a deep understanding of how to make evidence-based decisions and of the value of evidence synthesis. If, as educators, we do... more
To be effective, the next generation of conservation practitioners and managers need to be critical thinkers with a deep understanding of how to make evidence-based decisions and of the value of evidence synthesis. If, as educators, we do not make these priorities a core part of what we teach, we are failing to prepare our students to make an effective contribution to conservation practice. To help overcome this problem we have created open access online teaching materials in multiple languages that are stored in Applied Ecological Resources. So far, 117 educators from 23 countries have acknowledged the importance of this and are already teaching or about to teach skills in appraising or using evidence in conservation decision-making. This includes 145 undergraduate, postgraduate or professional development courses. We call for wider teaching of the tools and skills that facilitate evidence-based conservation and also suggest that providing online teaching materials in multiple languages could be beneficial for improving global understanding of other subject areas.
Research Interests:
An analysis of the growth dynamics of a 1-ha (100 m x 100 m) permanent plot was carried out in the Danau Bangko Protected Area (DBPA) in March 2020. DBPA is part of the industrial plantation forest concession of PT Rimba Hutani Mas (PT... more
An analysis of the growth dynamics of a 1-ha (100 m x 100 m) permanent plot was carried out in the Danau Bangko Protected Area (DBPA) in March 2020. DBPA is part of the industrial plantation forest concession of PT Rimba Hutani Mas (PT RHM) in Jambi Province. The study aims to determine the dynamics of vegetation structure and composition between 2018 and 2020 in early regeneration forest. All trees tagged in 2018 were remeasured in 2020. Trees that had not been tagged previously but were 10 cm in diameter at breast height (DBH) were identified as a new recruit and tagged with a new number. Observations and data analysis were carried out on three stages of growth phases, namely in the tree phase ( 10 cm DBH), sapling phase (10 cm DBH), and seedling phase (height 1.5 m). The results showed that the number of species, genera, and families within the tree and sapling phases were high, but were low in the seedling phase. The dominant species in the tree phase in 2018, Alseodaphne ban...
A study on structure and composition of old secondary forest (OSF), young secondary forest (YSF), and old scrub forest (OScF) in Rantau Bertuah Protected Area, Siak Regency, Riau Province, was conducted in September 2018. The purpose of... more
A study on structure and composition of old secondary forest (OSF), young secondary forest (YSF), and old scrub forest (OScF) in Rantau Bertuah Protected Area, Siak Regency, Riau Province, was conducted in September 2018. The purpose of this study was to analyze species composition and structure of forests.The research plot measuring 100 x 100 m (one ha) each was made at OSF, YSF, and OScF. The OSF plot held 33 families, 55 species, and 642 trees with a diameter of ? 10 cm; in YSF 31 families, 56 species, and 450 trees; and in OScF 28 families, 52 species, and 235 trees. At the tree level the OSF was dominated by Calophyllum macrocarpum, Shorea sp., and Gironniera nervosa; the YSF by Palaquium amboinense, Shorea macroptera, and Gironniera nervosa; and the OScF by Macaranga hypoleuca, Gironniera nervosa and Lithocarpus gracilis. Based on the main dominant species and full distribution in the plot, the forest is called the Gironniera nervosa-Lithocarpus gracilis association.
Climate change has had an impact on the lives of people in various regions, including the Wakatobi community. Wakatobi is a small archipelago dominated by the sea and only 3% is land. Wakatobi is located in the center of the world's coral... more
Climate change has had an impact on the lives of people in various regions, including the Wakatobi community. Wakatobi is a small archipelago dominated by the sea and only 3% is land. Wakatobi is located in the center of the world's coral triangle area so that it has a high biodiversity in the form of 590 species of fish and 396 types of coral reefs. But this area has a high level of vulnerability to changes in climate element variables that can cause harm to people's lives and environmental damage. This study aims to determine the perceptions, conceptions and strategies of adaptation of local communities in Wakatobi to changes in variables and climate events that occur. The trick is to compare local knowledge data with scientific knowledge data relating to the influence of changes in climatic variables in managing living natural resources. Data collection was carried out by means of FGDs, questionnaires and interviews with the Wakatobi community which subsequently carried out an analysis of the knowledge of local communities in the region in developing adaptation strategies for changes in the climatic variables. The real change felt by the community is the uncertainty of changes in the seasons that cause the community difficulties to start production activities such as fishing in the sea, seaweed cultivation and other farming activities. In connection with this matter, this study tries to provide input in strengthening adaptation strategies due to changes in climatic variables with the aim of reducing the risk of failure in production activities. Based on the results of the analysis shows that local knowledge, assessment of local needs and interests can provide practical insight for the development and preparation of adaptation strategies that are suitable for natural resource management in the region.
Keywords: Adaptation strategy, natural resource management, local knowledge, Wakatobi
Keywords: Adaptation strategy, natural resource management, local knowledge, Wakatobi
Research Interests:
... and density. SA Wich a , b , Corresponding Author Contact Information , E-mail The Corresponding Author , GM Fredriksson b , c , G. Usher a , HH Peters b , D. Priatna d , F. Basalamah e , W. Susanto e , H. Kühl f. a, Sumatran ...
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A wader population survey of Cemara and Air Hitam Laut beaches on the east coast of Jambi, central Sumatra, Indonesia was carried out during early northward migration (1st March 2011). A total of 4,144 waders was counted, comprising 15... more
A wader population survey of Cemara and Air Hitam Laut beaches on the east coast of Jambi, central Sumatra,
Indonesia was carried out during early northward migration (1st March 2011). A total of 4,144 waders was counted,
comprising 15 species. Black-tailed Godwit was the most abundant species (48.43% of total count), followed by
Bar-tailed Godwit (19.3%), Terek Sandpiper (6.86%) and Lesser Sand Plover (6.75%). The number of Black-tailed
Godwit in this survey reached more than 1% of the population estimate of waders for the East Asian-Australasian
Flyway. It is confirmed that the east coast of Jambi province provides important habitat for Black-tailed Godwit
and is also an important non-breeding area of waders in East Asian-Australasian Flyway.
Indonesia was carried out during early northward migration (1st March 2011). A total of 4,144 waders was counted,
comprising 15 species. Black-tailed Godwit was the most abundant species (48.43% of total count), followed by
Bar-tailed Godwit (19.3%), Terek Sandpiper (6.86%) and Lesser Sand Plover (6.75%). The number of Black-tailed
Godwit in this survey reached more than 1% of the population estimate of waders for the East Asian-Australasian
Flyway. It is confirmed that the east coast of Jambi province provides important habitat for Black-tailed Godwit
and is also an important non-breeding area of waders in East Asian-Australasian Flyway.
Research Interests:
The loss and fragmentation of substantial areas of forest habitat, in combination with rampant hunting, has pushed many of Southeast Asia’s megafauna species to the verge of extinction. However, the extent of these declines is rarely... more
The loss and fragmentation of substantial areas of forest habitat, in combination with rampant hunting,
has pushed many of Southeast Asia’s megafauna species to the verge of extinction. However, the extent of
these declines is rarely quantified, thereby weakening lessons learned and species-based management.
This need not be the case as a proliferation of camera trap surveys for large-bodied mammals across
Southeast Asia, which use a standardized sampling technique, presents a rich yet under-utilized wildlife
data set. Furthermore, advances in statistical techniques for assessing species distribution provide new
opportunities for conducting comparative regional analyses. Here, we focus on one of Southeast Asia’s
least known species of megafauna, the Endangered Asian tapir (Tapirus indicus), to investigate the performance
of a camera trap-based spatial modeling approach in conducting a range-wide species assessment.
Detection data were collectively collated from 52,904 trap days and 1,128 camera traps located across 19
study areas drawn from the Asian tapir’s entire range. Considerable variation in tapir occurrence was
found between study areas in: Malaysia (0.52–0.77); Sumatra, Indonesia (0.12–0.90); Thailand (0.00–
0.65); and, Myanmar (0.00–0.26), with generally good levels of estimate precision. Although tapirs were
widespread (recorded in 17 of the 19 study areas), their occurrence was significantly and negatively correlated
with human disturbance. Thus, this study extends the previously known applicability of camera
traps to include a threatened and cryptic species by identifying where and how tapirs persist (including
new records of occurrence), where future surveys should be conducted and providing a benchmark for
measuring future conservation management efforts.
has pushed many of Southeast Asia’s megafauna species to the verge of extinction. However, the extent of
these declines is rarely quantified, thereby weakening lessons learned and species-based management.
This need not be the case as a proliferation of camera trap surveys for large-bodied mammals across
Southeast Asia, which use a standardized sampling technique, presents a rich yet under-utilized wildlife
data set. Furthermore, advances in statistical techniques for assessing species distribution provide new
opportunities for conducting comparative regional analyses. Here, we focus on one of Southeast Asia’s
least known species of megafauna, the Endangered Asian tapir (Tapirus indicus), to investigate the performance
of a camera trap-based spatial modeling approach in conducting a range-wide species assessment.
Detection data were collectively collated from 52,904 trap days and 1,128 camera traps located across 19
study areas drawn from the Asian tapir’s entire range. Considerable variation in tapir occurrence was
found between study areas in: Malaysia (0.52–0.77); Sumatra, Indonesia (0.12–0.90); Thailand (0.00–
0.65); and, Myanmar (0.00–0.26), with generally good levels of estimate precision. Although tapirs were
widespread (recorded in 17 of the 19 study areas), their occurrence was significantly and negatively correlated
with human disturbance. Thus, this study extends the previously known applicability of camera
traps to include a threatened and cryptic species by identifying where and how tapirs persist (including
new records of occurrence), where future surveys should be conducted and providing a benchmark for
measuring future conservation management efforts.
Research Interests:
Although translocation has been used in mitigating human-carnivores conflict for decades, few studies conducted on behavior ecology of post released animals. Whereas, such information is necessary in the context of sustainable forest... more
Although translocation has been used in mitigating human-carnivores conflict for decades, few studies conducted on behavior ecology of post released animals. Whereas, such information is necessary in the context of sustainable forest management. In this study we determine the type of land cover which used as main habitat and examine the activity pattern of translocated tigers. Between 2008 and 2010 we captured six conflict tigers and translocated them 74-1,350 km from their capture sites in Sumatra. All tigers were fitted with global positioning system (GPS) collars. The collars were set to fix 24-48 location coordinates per day. Each translocated tigers showed their preferences to a certain habitat type within their new home range, and tend to select the majority of natural land cover type within the landscape as their main habitat, but the natural forest habitat availability within the landscape remains essensial for their survival. Activity of male translocated tigers differed significantly between the six time intervals of 24 hours, with their most active periods were in the afternoon (between 14:00-18:00 hours) and in the evening (between 18:00 and 22:00 hours). Despite being preliminary the finding of this study highlight the conservation value of tiger translocation and have provide valuable information for improving future management of conflict tigers, as this study was the first ever conducted in Sumatra.
Research Interests:
Research Interests: Geography, Indonesia, Endangered Species, Large Carnivores, Multidisciplinary, and 19 morePopulation, Land Use Planning, Tiger ecology, Animals, Cost effectiveness, Spatial Scale, Trees, PLoS one, Large Mammals, Occupancy Modeling, Ecosystem, ROAD NETWORK, Tropical rainforest, Sampling Technique, Detection Probability, Conservation of Natural Resources, Tigers, Food Chain, and Sumatran Tiger
Research Interests:
Food is a basic human need. The state must strive to meet the availability of food for people in a sustainable manner. One of the efforts is to maintain and develop paddy fields as a food source as a supplier of 95% of national rice... more
Food is a basic human need. The state must strive to meet the availability of food for people in a sustainable manner. One of the efforts is to maintain and develop paddy fields as a food source as a supplier of 95% of national rice production. The conversion of paddy fields is a reason of decreasing of food production in Purwakarta Regency, which impact on food availability and security. This research was aimed to provide a portrait of the rate of conversion of paddy fields in Purwakarta. This research is a quantitative descriptive research using spatial analysis to compare two period of times: 2013-2017 period and the 2017-2021 period. The results of spatial analysis in the 2013-2017 period showed that Purwakarta Regency experienced a reduction in paddy fields by 195.55 ha (1%) consisting of paddy fields turned into industry 117.99 ha; roads 5.72 ha; settlements of 42.30 ha and housing, trade and services of 29.55 ha. Meanwhile, in the 2013-2017 period, paddy fields turned into in...
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The increase in the number of hospitals in Indonesia has resulted in an increase in medical waste. Hospital activities have resulted in an increase in B3 waste which manages various problems. This research focuses on finding solutions and... more
The increase in the number of hospitals in Indonesia has resulted in an increase in medical waste. Hospital activities have resulted in an increase in B3 waste which manages various problems. This research focuses on finding solutions and strategies in the framework of optimizing solid medical waste (B3) management. In particular, the optimization of medical waste management (B3) services involves several special analyzes, namely: priority needs, opportunities and constraints, and innovative work formulation programs. This study utilizes the Interpreted Structural Model (ISM) method to generate a priority scale in the management of solid B3 waste. This study found an analysis of the priority needs of mass education for all employees regarding the handling of solid B3 waste. Analysis of opportunities to increase stakeholder awareness of the dangers of B3 waste. The priority for solving the problem is that the organizational staffing is not complete according to the job description.
In conservation areas throughout Indonesia, there are at least 1.8 million hectares of open land in the form of damaged or degraded ecosystems following encroachment on conservation areas by local communities. Addressing this, the... more
In conservation areas throughout Indonesia, there are at least 1.8 million hectares of open land in the form of damaged or degraded ecosystems following encroachment on conservation areas by local communities. Addressing this, the government of Indonesia has introduced a conservation partnership policy issued in 2018, namely the Director General of KSDAE Regulation No. P.6/KSDAE/SET/Kum.1/6/2018 concerning Technical Guidelines for Conservation Partnerships in Nature Reserves and Nature Conservation Areas. The objective of this study was to identify and analyze the impact of conservation partnerships on improving the welfare of the community in the Gunung Masigit Kareumbi Hunting Park (GMKHP). The research was conducted within the GMKHP area, with the samples taken from the community of Forest Farmer Groups (KTH) in the villages of Pelita Asih, Jaya Mekar, Sunda Mekar, Cikadu, Sukajaya, and Kaduwulung. The approach used in this study is qualitative. Data were collected by questionnai...
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Coastal abrasion is a problem that needs to be addressed thoroughly. If not properly managed, coastal abrasion can lead to other environmental issues, such as damage to mangroves and coastal ecosystems. The local government is actively... more
Coastal abrasion is a problem that needs to be addressed thoroughly. If not properly managed, coastal abrasion can lead to other environmental issues, such as damage to mangroves and coastal ecosystems. The local government is actively carrying out mangrove ecosystem restoration program to conserve the coastal ecology by involving related agencies, industries, and the community surrounding the Juntinyuat coastal area. The focus of this research is to find out the planning, implementation, and monitoring carried out in relation to the restoration of the mangrove ecosystem based on the involvement of the parties in overcoming coastal abrasion on the coast of Juntinyuat, Indramayu Regency, West Java. Data were collected by conducting observations, interviews, and documentation to the community and the parties involved in restoring the mangrove ecosystem on the Juntinyuat coast. The results showed that mangrove ecosystem damage in the coastal area of Juntinyuat generates a high level of...
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Various global-scale proposals exist to reduce the loss of biological diversity. These include the Half-Earth and Whole-Earth visions that respectively seek to set aside half the planet for wildlife conservation or to diversify... more
Various global-scale proposals exist to reduce the loss of biological diversity. These include the Half-Earth and Whole-Earth visions that respectively seek to set aside half the planet for wildlife conservation or to diversify conservation practices fundamentally and change the economic systems that determine environmental harm. Here we assess these visions in the specific context of Bornean orangutans Pongo pygmaeus and their conservation. Using an expert-led process we explored three scenarios over a 10-year time frame: continuation of Current Conditions, a Half-Earth approach and a Whole-Earth approach. In addition, we examined a 100-year population recovery scenario assuming 0% offtake of Bornean orangutans. Current Conditions were predicted to result in a population c. 73% of its current size by 2032. Half-Earth was judged comparatively easy to achieve and predicted to result in an orangutan population of c. 87% of its current size by 2032. Whole-Earth was anticipated to lead ...
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Indonesia faces tremendous challenges from climate change, biodiversity loss, and wider social and economic change. These challenges need extensive interdisciplinary approaches enabling multiple perspectives from diverse stakeholders to... more
Indonesia faces tremendous challenges from climate change, biodiversity loss, and wider social and economic change. These challenges need extensive interdisciplinary approaches enabling multiple perspectives from diverse stakeholders to be recognised and utilised. Collaboration between scientists, social scientists, and economists has never been so important. As Christiana Figueres, former Executive Secretary, United Nations Framework Convention on Climate Change said: “The [global] challenges we face are massive, urgent, and interconnected. We need people across all sectors to pull together and move us to a bright and strong future. There’s no time to waste!”. We are therefore happy to see the growing number of community-based participatory studies being submitted to InJAST and hope these will increase in future. There are exciting and vitally important issues to be tackled and supported by environmental managers to build the necessary environmental security and resilience, from...
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Translocation has been used in human-tiger conflict mitigation for more than 5 decades, but the records show the success rate still relatively low. A comprehensive study is needed to determine the ideal and suitable area for tiger... more
Translocation has been used in human-tiger conflict mitigation for more than 5 decades, but the records show the success rate still relatively low. A comprehensive study is needed to determine the ideal and suitable area for tiger translocation within one landscape. Beside the physical characteristic habitat (such as the adequacy of forested areas, topography, as well as availability of ecotone and clean water), potential threats and the history of human-tiger conflict factors, it is very important to consider the factors of wild local tigers presence and their prey in the areas for the future translocation, so that the activities of tiger translocation can be more effective and the success rate will also be increased. In this study we developed a habitat suitability model of translocated tiger, and determined the areas that suitable for the location of tiger translocation in Ulu Masen Landscape. In 2008 we captured an adult female conflict tiger and translocated her 70 km from capt...
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Primary natural forests generally have higher biodiversity and biomass compared to secondary forests. This study aimed to analyze the species composition, forest structure, biomass and carbon stock in the Old Secondary Forest (HST), Young... more
Primary natural forests generally have higher biodiversity and biomass compared to secondary forests. This study aimed to analyze the species composition, forest structure, biomass and carbon stock in the Old Secondary Forest (HST), Young Secondary Forest (HSM), and Old Shrub Forest (HBT) in Peatland Protection Area, Musi Banyuasin Regency, South Sumatera Province. Forest inventory was conducted in measurement plots of 100 m x 100 m in the HST, HSM, and HBT. The results recorded 39 species of 20 families and 565 standing trees with a diameter of ≥ 10 in the HST, 48 species of 20 families and 430 standing trees in the HSM, and 2 species of 1 family and 4 standing trees in the HBT. Vegetation at the tree level in the HST was dominated by Eugenia sp., Alseodaphne insignis, and Adenanthera pavonina, while the HSM was dominated by Macaranga maingayi, Koompassia malaccensis, and Alseodaphne insignis, and the HBT was dominated by Acacia mangium and Acacia crassicarpa. The biomass and carb...
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... the years. In this study, we used line transects ofnests to estimate population densities of Sumatran orangutans. The parameters ...
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Research Interests: Geography, Indonesia, Endangered Species, Large Carnivores, Medicine, and 15 moreMultidisciplinary, Population, Land Use Planning, Animals, Cost effectiveness, Spatial Scale, PLoS one, Large Mammals, Occupancy Modeling, Ecosystem, ROAD NETWORK, Sampling Technique, Detection Probability, Conservation of Natural Resources, and Food Chain
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The ecosystem restoration conservation partnership program is a new policy from the Ministry of Environment and Forestry which aims to reduce conflicts due to forest land use in conservation areas. Gunung Halimun Salak National Park... more
The ecosystem restoration conservation partnership program is a new policy from the Ministry of Environment and Forestry which aims to reduce conflicts due to forest land use in conservation areas. Gunung Halimun Salak National Park (GHSNP) is one of the conservation areas facing tenure conflicts, particularly in the Gunung Botol Resort area, where there are people who have lived and cultivated the land for decades, long before the Decree of the Designation of the GHSNP was issued. In an effort to address tenurial conflicts in Malasari Village, which is one of the villages within the management area of Gunung Botol Resort, the community took the initiative to collaborate with the GHSNP manager through a scheme called ecosystem restoration conservation partnership. This study aims to formulate a strategy for developing an ecosystem restoration conservation partnership in GHSNP by using a qualitative approach which is presented in a descriptive form. Data were analyzed using SWOT (Str...