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http://dx.doi.org/10.13047/KJEE.2018.32.5.469

Predicting Potential Habitat for Hanabusaya Asiatica in the North and South Korean Border Region Using MaxEnt  

Sung, Chan Yong (Dept. of Urban Engineering, Hanbat National Univ.)
Shin, Hyun-Tak (DMZ Botanic Garden, Korean National Arboretum)
Choi, Song-Hyun (Dept. of Landscape Architecture, Pusan National Univ.)
Song, Hong-Seon (Dept. of Plant Resource, Kongju National Univ.)
Publication Information
Korean Journal of Environment and Ecology / v.32, no.5, 2018 , pp. 469-477 More about this Journal
Abstract
Hanabusaya asiatica is an endemic species whose distribution is limited in the mid-eastern part of the Korean peninsula. Due to its narrow range and small population, it is necessary to protect its habitats by identifying it as Key Biodiversity Areas (KBAs) adopted by the International Union for Conservation of Nature (IUCN). In this paper, we estimated potential natural habitats for H. asiatica using maximum entropy model (MaxEnt) and identified candidate sites for KBA based on the model results. MaxEnt is a machine learning algorithm that can predict habitats for species of interest unbiasedly with presence-only data. This property is particularly useful for the study area where data collection via a field survey is unavailable. We trained MaxEnt using 38 locations of H. asiatica and 11 environmental variables that measured climate, topography, and vegetation status of the study area which encompassed all locations of the border region between South and North Korea. Results showed that the potential habitats where the occurrence probabilities of H. asiatica exceeded 0.5 were $778km^2$, and the KBA candidate area identified by taking into account existing protected areas was $1,321km^2$. Of 11 environmental variables, elevation, annual average precipitation, average precipitation in growing seasons, and the average temperature in the coldest month had impacts on habitat selection, indicating that H. asiatica prefers cool regions at a relatively high elevation. These results can be used not only for identifying KBAs but also for the reference to a protection plan for H. asiatica in preparation of Korean reunification and climate change.
Keywords
HABITAT SUITABILITY MODEL; MACHINE LEARNING; PROTECTED AREA; DEMILIITARIZED ZONE; VEGETATION INDEX;
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Times Cited By KSCI : 1  (Citation Analysis)
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