Abstract
Similar to other botanic gardens, Bali Botanic Garden (BBG) is also prone to the spread of Invasive Alien Plant (IAP) species. Unfortunately, research about IAP species in BBG is still very limited. Thus, the study aims to update the list of IAP species in BBG and its adjacent areas as well as to provide a garden manager with data of the most important IAP species. This study was conducted by using sampling plots that were purposively established in three areas of BBG, namely the Ekor Burung (EB), VIP, and Kepala Burung (KB). Data analysis was performed to calculate the Relative Frequency (RF), Important Value Index (IVI), Clustering analysis, and NMDS ordination. The study was able to document 18 IAP species. Ageratina riparia and Bidens pilosa have the highest RF in EB, while the former also has the highest RF in VIP and KB. Similarly, the highest IVI was acquired by A. riparia in VIP and KB, as well as by Sida rhombifolia in EB. Cluster analysis revealed two subsets. NMDS ordination suggested that VIP and KB have more similar IAPs than the EB. This study suggested that A. riparia is the most important IAP species in BBG and its surrounding areas.Inventarisasi Tumbuhan Asing Invasif di Kebun Raya Bali dan Wilayah Sekitarnya IntisariSepertihalnya Kebun Raya lain, Kebun Raya Bali (BBG) juga rentan terhadap penyebaran Tumbuhan Asing Invasif (IAP). Sayangnya, penelitian tentang IAP di BBG dan daerah sekitarnya masih sangat terbatas. Karena itu, penelitian ini bertujuan untuk memperbarui daftar jenis IAP di BBG dan daerah sekitarnya serta menyediakan data jenis IAP paling penting bagi pengelola Kebun Raya. Penelitian ini dilakukan dengan menggunakan plot sampel yang secara purposive diletakan pada tiga wilayah BBG yaitu Ekor Burung (EB), VIP dan Kepala burung (KB). Analisis data dilakukan untuk menghitung Frekuensi Relatif (RF), Indeks Nilai Penting (IVI), analisis klaster dan ordinasi NMDS. Penelitian ini mampu mendokumentasikan 18 spesies IAP. Ageratina riparia dan Bidens pilosa memiliki nilai RF tertinggi di EB, sementara yang disebutkan pertama juga memiliki RF tertinggi di VIP dan KB. Demikian pula, nilai IVI tertinggi di VIP dan KB diperoleh oleh A. riparia serta oleh Sida rhombifolia di EB. Analisis klaster mengungkapkan dua subset. Ordinasi NMDS menunjukan bahwa VIP dan KB memiliki jenis-jenis IAP yang lebih mirip daripada EB. Studi ini juga menunjukkan bahwa A. riparia adalah jenis invasif paling penting di BBG dan daerah sekitarnya.
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