KEYWORDS: Data modeling, Data processing, Animal model studies, Forestry, Temperature metrology, Roads, Agriculture, Image processing, Climate change, Java
The rising global temperatures due to climate change force animals to look for cooler and suitable areas for their habitat. Javan Hawk-Eagle (Nisaetus bartelsi) is an endemic raptor species in Java Island. Its existence is severely endangered due to declining population numbers, low reproduction rates, illegal hunting, and habitat fragmentation. Mount Halimun Salak National Park is one of the conservation areas with the highest Javan Hawk-Eagle population on Java. This area has deforestation, degradation, and forest fragmentation resulting in extensive declining of Javan Hawk-Eagle habitat. This research is to identify the priority areas that need to be restored for the movement of Javan Hawk-Eagle using the MaxEnt and Condatis applications. Variables used for habitat suitability maps were altitude, temperature, rainfall, distance from the river, distance from the road, and types of land cover. Habitat suitability maps were used to determine source and target areas. Data needed for priority areas of restoration using Condatis applications were habitat layer, source and target, reproduction rate, and dispersal distance. The priority area obtained was a comparison between the speeds of Javan Hawk-Eagle colonization between two scenarios called the Business as Usual and forest cover scenarios. The difference in speed of colonization of Javan Hawk-Eagle was the basis in determining priority areas for restoration.
Gunung Halimun Salak National Park is a widest tropical rainforest conservation area that still exists in West Java and Banten Provinces. The park has been facing deforestation, forest degradation and forest fragmentation problem, on the other hand the area is a natural habitat of Javan Gibbon, so habitat restoration is important to maintain its connectivity. The aim of this study is to provide information to the park administration about the potential area which can be restored to facilitate Javan gibbon movement. The analyses were performed in Condatis, a modelling software for use in landscape planning to explore the connectivity of the wildlife corridor, based on species movement in response to climate change. Variable data prepared in the form of a raster is habitat data, Javanese gibbon habitat suitability data through Maxent application, data source and target layer. The bussines as usual (BAU) scenario and restoration scenario are created by illustrating changes in landscape connectivity by converting non-forest areas into forests. Corridor areas and paths can be indicated by high flow values from BAU scenario, while priority restoration areas are indicated by changes in flow values between scenarios. Priority restoration areas are divided into 3 classes: high, medium and low, high and medium classes are found in the Cikaniki Tea Plantation area, the Pasir Kerud forest block and Muara Tilu.
KEYWORDS: Vegetation, Data modeling, Geographic information systems, Near infrared, LIDAR, Analytical research, Ecosystems, Data processing, Roads, Information technology
Gunung Halimun Salak National Park (GHSNP) corridor is an area that connects Salak and Halimun Mountain, and has a role in animal movement, breeding and living. This study aims to characterize the vegetation structure in a restoration area in the corridor of Gunung Halimun Salak National Park. The vegetation characteristics was analyzed through structural vegetation datasets such as Canopy Height Model (CHM) and some vegetation indices namely; Normalized Difference Vegetation Index (NDVI), Ratio Vegetation Index (RVI), Soil Adjusted Vegetation Index (SAVI), and Normalized Difference Water Index (NDWI). Significance of the approach was evaluated by the Mann Whitney test. The results indicated that the restoration area of HSNPC consist of seedlings, saplings, poles and trees. GHSNP’s corridor canopy layer consists of five canopy layers, namely strata A (> 30 m), B (20 – 30 m), C (4 – 20 m), D (1 – 4 m), and E (0 – 1 m). The most important species are Schima wallichii, Agathis dammara, Bellucia axinanthera and Macaranga triloba. The effective vegetation index to see the differences vegetation structure are NDVI and RVI vegetation index.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.