Konservasi ex situ Mangifera casturi Kosterm. Berbasis masyarakat: studi kasus di Kabupaten Indragiri Hilir, Provinsi Riau

Mangifera casturi Kosterm. (Anacardiaceae) is an extinct in the wild species. This species is endemic to Borneo Island, however, luckily, this valuable mango member has been cultivated outside its natural distribution, especially in Indragiri Hilir of Riau Province, Sumatra. This research was conducted in the two districts of Indragiri Hilir regency, namely the Gaung Anak Serka (GAS) dan Gaung districts. A total of 1315 individuals of M. Casturi were recorded. The successful ex situ conservation of this species in this area seemed to be supported by at least three stimulus, natural, benefit, and religion stimulus. However both internal and external factors belonging to the local community values also influenced significantly. At the GAS district, ex situ conservation of M. Casturi was mainly supported by benefit stimulus while at the Gaung District the ex situ conservation effort was supported by mainly religion stimulus. The principle component analysis (PCA) was performed to determine possible relationships between the ex situ conservation of M.casturi and supporting variables within the community. At the GAS district, the ex situ conservation effort of M.casturi was significantly supported by the species population size, harvest and market activities. However pre planting activites were also important. At the Gaung district, ex situ conservation of the mango was supported not only by the population size, harvest and market activities, but also by pre-planting activities and land status and size. Jurnal Biologi Indonesia Vol. 9 No.1 Hal. 141-151 ISSN 0854-4425