Abstract Frigatebird is one of seabird species found in Pulau Rambut Wildlife Reserve (SMPR). The bird activities include roost in fish pole, flying, foraging in the ocean and also roosting in SMPR at night. The aim of this research was to know roosting site used by frigatebird while at SMPR. This research was conducted in SMPR, Jakarta on August and September 2010 by descriptive method and survey techniques. Data was collected directly on the object of research. Frigatebird population was calculated directly by counting individuals one by one as they flew low in the air over SMPR. Frigatebird roosting site was also researched directly by observing frigatebird when going to roost. Furthermore, vegetation analysis was also conducted on trees in roosting site. Based on our obsevations, the population of frigatebird obtained in SMPR ranged between 87-193 birds. Frigatebird utilize Sterculia foetida tree to be used as a place to roost. This roosting site located in mixed secondary forest to the west and south SMPR close to mangrove forest. Average of height and diameter of S. foetida tree used to roost is 23.47 m and 42.26 cm. There were commonly 3 species of tree of frigatebird roosting site namely Ficus sp. (INP 16.91%), Allophylus cobbe (INP 16.78%) dan Diospyros maritima (INP 14.23).   Key words: frigatebird, Pulau Rambut Wildlife Reserve (SMPR), roosting site

Indonesian biodiversity including the rich flora is facing various threats, including deforestation, habitat degradation, fire, natural disasters and climate change. Many ex situ conservation strategies have been implemented in response to this problem, including the development of new local botanic gardens in each province throughout Indonesia. The purpose of this paper is to reveal the important role of seed banks in forming part of the botanic gardens’ collections management strategies – they now play an increasingly important role in saving the Indonesian flora from extinction. This study was conducted by undertaking a literature review and analysis of secondary data on the four largest botanic gardens of Indonesia. Currently there are 33 botanic gardens in Indonesia consisting of five national botanic gardens under Lembaga Ilmu Pengetahuan Indonesia (LIPI/Indonesian Institute of Sciences), two botanic gardens under universities and 26 botanic gardens managed by Local Goverments. Among the five national botanic gardens, four manage seed banks: the Seed Bank of the Center for Plant Conservation Botanic Gardens/Bogor Botanic Gardens banks 749 accessions covering 460 species, 305 genera and 114 families; Cibodas Botanic Garden Seed Bank has 61 accessions covering 57 species, 57 genera, 40 families; Purwodadi Botanic Garden Seed Bank has 413 accessions covering 207 species, 134 genera and 46 families; and Eka Karya Bali Botanic Garden Seed Bank maintains 132 accessions covering 89 species, 43 genera and 21 families. The Indonesian Botanic Garden Seed Banks thus hold 1,355 accessions in total, covering less than 1% of total Indonesian plant diversity. In order to increase this coverage, Indonesian seed banking capacity needs to be increased, through the technical development of existing seed banks and the engagement of local botanic gardens throughout Indonesia to establish mini seed banks using the community seed bank approach.

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In addition to the studies on potential medicinal uses of Trichosanthes, a screening on phytochemical compounds and antioxidants activity of Trichosanthes tricuspidata from Bangli, Baturiti, Bali, Indonesia, was conducted on its leaves, fruits, peels, and seeds. Qualitative phytochemical tests were conducted to find out the chemical constituents of T. tricuspidata, while its antioxidant activity was tested by applying DPPH (1,1-diphenyl-2-picrylhydrazyl radical) method. As a result, flavonoid, alkaloid, terpenoid, tannin, and saponin were present in all methanolic extracts of T. tricuspidata. Furthermore, the best antioxidant activity was exhibited by peel extract. After all, T. tricuspidata contains a prospective compound agent for medicinal use.