Abstract
Corpse flower, or scientifically known as Rafflesia arnoldii var. arnoldii R.Br, is one of the species that is endemic to Sumatra, Kalimantan and Java Island. As a parasitic plant, this species depends on its tree host species. While the host species depends on environmental variables include Fractional Photosynthetically Active Radiation (FAPAR), forest covers, and elevation for its growth. Then those variables were important to develop the Species Distribution Modelling (SDM) of R. arnoldii using the MaxEnt technique. One of the important regions for R. arnoldii in Sumatra is Tanggamus in Lampung, and currently, information about suitable habitats for R. arnoldii is still limited. Here, this study aimed to model the potential distributions of R. arnoldii across Tanggamus using FAPAR, forest covers (%), and altitude (m) variables. The average AUC of 0.647 indicates this model is fair. The model shows that the suitable habitats were mostly located in the northwest of Tanggamus. The percentage contributions and permutation importance analysis confirm that the effects of environmental variables were FAPAR (39.44%) > altitude (37.22%) > forest cover (23.33%), making FAPAR an important variable shaping the suitable habitat of R. arnoldii. To conclude, the distribution of R. arnoldii was limited to mountainous areas with elevation >1100 m, forest cover% and >95% %, and FAPARR. arnoldii.
DOI
10.65844/2407-7860.1196
Recommended Citation
Andriwibowo, Andriwibowo and Utomo, Suyud
(2026)
"Species Distribution Modeling of Parasitic Corpse Flower Rafflesia Arnoldii Var. Arnoldii R. Br Related to Host’s Fractional Photosynthetically Active Radiation in Tanggamus, Sumatra, Indonesia,"
Jurnal Penelitian Kehutanan Wallacea: Vol. 15:
Iss.
1, Article 2.
DOI: https://doi.org/10.65844/2407-7860.1196
Available at:
https://scholarhub.unhas.ac.id/jpkw/vol15/iss1/2
Pages
23-33