Path: TopS1-Final ProjectForestry Engineering-SITH2017

PEMODELAN DISTRIBUSI SPESIES TUMBUHAN PAKAN RUSA JAWA (Rusa timorensis de Blainville, 1822) DI KAWASAN TAMAN BURU GUNUNG MASIGIT KAREUMBI

SPECIES DISTRIBUTION MODELLING OF JAVAN DEER (Rusa timorensis de Blainville, 1822) FOOD SOURCE PLANTS IN GUNUNG MASIGIT KAREUMBI GAME RESERVE

Undergraduate Theses from JBPTITBPP / 2017-09-27 10:15:57
Oleh : ADYA DHIVARA SAMPURNO , Central Library Institute Technology Bandung
Dibuat : 2017-09-20, dengan 1 file

Keyword : Kata kunci: maximum entropy, pemodelan distribusi spesies, taman buru, Taman Buru Gunung Masigit Kareumbi

Taman Buru Gunung Masigit Kareumbi (TBMK) merupakan salah satu dari 13 taman buru di Indonesia yang saat ini sedang berupaya menjalankan fungsi perburuan secara teratur. Untuk mencapai fungsi tersebut, rencana introduksi rusa jawa (Rusa timorensis de Blainville, 1822) sebagai satwa buru di TBMK perlu mempertimbangkan sebaran vegetasi sumber pakan bagi satwa tersebut. Beberapa tumbuhan di TBMK diketahui memiliki kandungan protein yang baik sebagai sumber pakan rusa jawa di TBMK. Penelitian ini bertujuan untuk memodelkan distribusi lima tumbuhan pakan rusa jawa yaitu Calliandra calothyrsus, Zapoteca tetragona, Hylodesmum repandum, Brachiaria decumbens, dan Setaria palmifolia serta menentukan variabel lingkungan yang mempengaruhi kehadiran spesies-spesies tumbuhan tersebut dalam area seluas 1.097,7 ha di kawasan TBMK. Pemodelan distribusi spesies dilakukan dengan menggunakan model maximum entropy (MAXENT) dengan input berupa titik kehadiran spesies yang diperoleh dari survei lapangan dan sembilan variabel lingkungan yaitu NDVI (normalized difference vegetation index), NDMI (normalized difference moisture index), ketinggian, kelerengan, arah lereng, presipitasi bulanan, temperatur rata-rata, tutupan lahan, dan jarak terhadap sungai. Uji validasi model berdasarkan area under curve (AUC) dari kurva receiver operating characteristic (ROC) menunjukkan nilai AUC dari model distribusi C. calothyrsus, Z. tetragona, H. repandum, S. palmifolia, dan B. decumbens masing-masing sebesar 0,883; 0,887; 0,782; 0,804; dan 0,953. Variabel yang berkontribusi paling besar pada masing-masing model adalah tutupan lahan (pada model distribusi C. calothyrsus, S. palmifolia, dan B. decumbens), presipitasi bulanan (pada model distribusi Z. tetragona), dan kelerengan (pada model distribusi H. repandum). Distribusi lima jenis tumbuhan pakan rusa jawa di TBMK dapat dimodelkan dengan performa sedang-sangat baik (0,782-0,953) berdasarkan nilai AUC. Model B. decumbens merupakan model dengan nilai AUC tertinggi yaitu 0,953.


Deskripsi Alternatif :

Gunung Masigit Kareumbi Game Reserve (GMKGR), along with 12 other game reserves in Indonesia, is currently developing management plans in order to perform sustainable wildlife hunting. GMKGR’s effort on introducing Javan deer (Rusa timorensis de Blainville, 1822) as a game animal needs to consider the distribution of forage species for the game animals. There are some plant species in GMKGR known having a good protein content as a food source. This research intends to model the distribution of food sources of Javan deer comprised of five plant species (Calliandra calothyrsus, Zapoteca tetragona, Hylodesmum repandum, Brachiaria decumbens, and Setaria palmifolia) and determining environmental variables that affects the distribution in a planned hunting area of 1.097,7 ha in GMKGR. Species distribution modelling is performed by using a maximum entropy (MAXENT) approach. The data used in the modelling comprised of the species’ presence points collected from a field survey and nine environmental variables: NDVI (normalized difference vegetation index), NDMI (normalized difference moisture index), altitude, slope, aspect, monthly precipitation, average temperature, landcover, and distance to rivers. The model validation test based on the area under curve (AUC) value of receiver operating characteristic (ROC) curve shows that the AUC values of C. calothyrsus, Z. tetragona, H. repandum, S. palmifolia, and B. decumbens distribution models are 0,883; 0,887; 0,782; 0,804; and 0,953 respectively. Environmental variables with the highest contribution on each distribution models are landcover (for C. calothyrsus, S. palmifolia, and B. decumbens distribution models), monthly precipitation (for Z. tetragona distribution model), and slope (for H. repandum distribution model). The distribution of five food source plants of Javan deer can be modelled with performance ranges between average-very good (0,782-0,953) based on the AUC value. The distribution model of B. decumbens has the highest AUC value of 0,953.

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OrganisasiCentral Library Institute Technology Bandung
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