Research, Development and Innovation Agency Conference Portal, International Conference on Managing Forest Genetic Resources in Changing Environment and Landscapes

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PREDICTING THE POTENTIAL DISTRIBUTION of Taxus sumatrana using MAXIMUM ENTROPY MODELING
Muhammad Hadi Saputra

Last modified: 2019-05-24

Abstract


Taxus sumatrana as the medicinal plant was noted as the endangered species. As the potential medicinal plant, conservation act is important. This study aims to identify the environmental variable that contributes to T. sumatrana distribution and predict the potential areas for Taxus sumatrana conservation area. The Maximum Entropy (Maxent) was used to modeling the species distribution. Presence location of T. sumatrana was collected from 77 locations across the Sumatra. Climate and biophysical variables were used to determine the potential distribution of species. The result showed a minimum temperature of coldest months has the highest permutation important by 66.3% while the highest contribution variable was altitude by 48.1%.  Soil type has an important value that is not presented in other variables. Potential regions for T. sumatrana distribution were: Aceh, North Sumatra , West Sumatra , Jambi , Bengkulu  and South Sumatra. The potential environment for T. sumatrana up to 1,500 meters above sea level, minimum temperature of the coldest month below 10oC with precipitation in the driest month between 50-70 mm/month. The species potentially found in Humid Andosol and Vitric Andosol soil type.

Keywords


Taxus sumatrana, Maximum Entropy Modeling, Species Distribution

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