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"Mangrove molluscs data collected from some mangrove forest in Indonesia (Sumatra, Kalimantan, Java, Mollucas, and Papua) are used in order to understand the mangrove molluscs distribution and pattern of species abundance. The result of the present study strongly suggest three models (or combination of them) of distribution (1) molluscs (especially bivalve ) only recruit into certain microhabitat, in which they reach larger densities; (2) certain species of mollusc may recruit widely, but suffer increase mortality in certain microhabitats; and (3) molluscs (especially for mobile animals, such as many gastropods) may actively move among macrohabitats, increasing local densities in some of those. The correlation between features of habitat and abundance of molluscs which can be described as preference are discussed "

"Penelitian tentang struktur komunitas Amfibi di kampus UI Depok telah dilakukan pada bulan Januari?April 2006. Metode yang digunakan adalah Visual Encounter Survey (VES). Hasil penelitian menunjukkan bahwa terdapat 10 jenis Bangsa Anura yang termasuk ke dalam 4 Famili yang hidup di 5 tipe habitat yang berbeda. Bufo melanostictus merupakan jenis yang dominan di lima tipe habitat yang ada di kampus UI Depok. Tipe habitat perairan tenang yang ditumbuhi banyak vegetasi (kolam dan rawa) merupakan daerah yang memiliki keanekaragaman Anura paling tinggi. Hal itu ditunjukkan dengan nilai Indeks keanekaragaman Shannon-Wiener sebesar 2,04, indeks kemerataan jenis sebesar 0,93, dan terdapat 9 jenis Anura. Indeks kesamaan Sorenson menunjukkan bahwa tipe habitat perairan tenang yang banyak ditumbuhi vegetasi mempunyai komunitas Anura yang mirip dengan perairan tenang yang luas (situ). Pengelompokan komunitas Anura menggunakan metode UPGMA berdasarkan nilai indeks kesamaan Sorenson mengelompokkan kedua tipe habitat tersebut menjadi satu, karena kemiripan komposisi jenis Anura penyusunnya. Keberadaan wilayah perairan dan vegetasi sangat berperan dalam mendukung kehidupan Anura, terutama dalam proses berbiak, sehingga pengelola kampus UI Depok harus mempertahankan keberadaannya."

"Sempadan sungai adalah kawasan lindung di kanan kiri sepanjang sungai yang secara alami diperuntukkan bagi vegetasi. Faktanya, kualitas sempadan sungai semakin menurun akibat alih fungsi lahan sempadan sungai oleh masyarakat, terutama di perkotaan sehingga dapat mengganggu fungsi ekologisnya. Tujuan penelitian ini adalah untuk menganalisis fungsi ekologis sempadan sungai morfologi sempadan sungai, keanekaragaman jenis pohon dan burung , menganalisis kondisi sosial ekonomi pemahaman, pandangan, perilaku, dan kondisi ekonomi masyarakat yang tinggal di sempadan sungai, dan merumuskan strategi pengelolaan lingkungan sempadan sungai berbasis hutan kota berkelanjutan. Morfologi sempadan sungai dianalisis menggunakan Sistem Informasi Geogrfis SIG ; kenaekaragaman jenis pohon diukur menggunakan petak ukur dengan metode jalur berpetak, sedangkan keanekaragaman jenis burung diukur menggunakan transek garis kemudian dianalisis dengan indeks keanekaragaman Shannon Wiener; kondisi sosial ekonomi menggunakan kuesioner, dan penentuan strategi pengelolaan yang tepat menggunakan Analytical Hierarchy Process AHP. Hasil penelitian menunjukkan terjadi penurunan tegakan sebesar 15,73. Indeks keanekaragaman jenis pohon sebesar 2,707 dan burung sebesar 2,794 yang termasuk kategori Sedang berdasarkan Indeks Shannon Wiener. Pemahaman masyarakat Tinggi dan pandangan masyarakat Cukup Baik, tetapi kondisi ekonomi dan perilaku masyarakat yang tinggal di sempadan sungai Kurang Baik. Kesimpulannya adalah melalui strategi pengelolaan lingkungan sempadan sungai berbasis hutan kota berkelanjutan secara collaborative management dengan peranan masyarakat yang tinggal di sempadan sungai dan pemerintah yang saling mendukung untuk meningkatkan fungsi ekologis dan fungsi sosial ekonomi sempadan sungai.

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Stream buffer is a protected area on either side along a river that is naturally destined for vegetation. In fact, quality of stream buffer was declining due to conversion of riparian land by people, especially in urban areas, which may disrupt its ecological functions.

This study aim to analyze ecological function of stream buffer morphology of stream buffer, diversity of tree and birds species, to analyze socio economic conditions understanding, point of views, behavior, and economic conditions of riverside community, and to formulate strategies that will be used for managing sustainable stream buffer based on urban forests.

Stream buffer morphology was analyzed using Geographic Information System GIS diversity of tree species was measured using a stripping route plot method, while diversity of bird species was measured using line transects and then analyzed by Shannon Wiener 39 s diversity index socio economic conditions was investigated using questionnaires, and appropriate strategies was determined using Analytical Hierarchy Process AHP.

The results showed a decrease in stands of 15,73. Tree species diversity index was 2,707 and bird species diversity index was 2,794, which belongs to moderate category based on Shannon Wiener Index. Understanding of riverside community is high and their viewpoint is quite good, but their economic and behavioral conditions are less adequate.

This study conclude that through sustainable urban forest based management of environmental stream buffer strategy in collaborative management with role of riverside community and mutually supportive government to improve the ecological and sosio economic functions of stream buffer."

"Diversity on the lowland pitcher plants (Nepenthes spp.) in Central Kalimantan were conducted between August 2005 and September 2006 at three locations study. That is: Barito Ulu, Sebangau and Kasongan district. Survey inventories were used to determine the diversity of Nepenthes at the study site. We found sixteen Nepenthes at study area, divided nine Nepenthes species; N. albomarginata, N. ampullaria, N. gracilis, N. hirsuta, N. mirabilis, N. rafflesiana, N. reinwardtiana, N. stenophylla, one unidentified Nepenthes species and seven natural hybrid; N. xhookeriana (N. rafflesiana x N. ampullaria), N. xtrichocarpa (N. gracilis x N. ampullaria), N. xneglecta (N. gracilis x N. mirabilis), N. mirabilis x ampullaria, N. mirabilis x rafflesiana, N. reinwardtiana x N. mirabilis and N. reinwardtiana x gracilis. Heath forest and peat swamp forest are generaly the habitat of lowland Nepenthes at Central Kalimantan."

"Penelitian tentang struktur komunitas Gastropoda di Situ Salam Kampus Universitas Indonesia, Depok telah dilakukan untuk mengetahui struktur komunitas Gastropoda di Situ Salam UI yang berkaitan dengan kelimpahan relatif, komposisi, dominansi, kemerataan dan keanekaragaman jenisnya. Pengambilan sampel Gastropoda dilakukan pada 9 stasiun penelitian dengan tiga kali pengulangan. Hasil penelitian menunjukkan jumlah jenis Gastropoda yang ditemukan di Situ Salam sebanyak 9 jenis, yaitu Bellamya javanica, Brotia costula, Brotia testudinaria, Indoplanorbis exustus, Lymnea rubiginosa, Melanoides granifera, Melanoides tuberculata, Pomacea canaliculata dan Thiara scabra. Stasiun 7 yang merupakan lokasi outlet memiliki jumlah jenis tertinggi, yaitu sebanyak 9 jenis dan memiliki nilai indeks keanekaragaman tertinggi dengan nilai indeks sebesar 1,74. Jenis Gastropoda yang memiliki kelimpahan relatif tertinggi di Situ Salam adalah Melanoides tuberculata 48,5%.

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A study of Gastropoda community at Situ Salam Kampus Universitas Indonesia (UI) Depok, has been conducted to know the structure community of Gastropods with reference to relative abundance, composition, domination, eveness and its diversity. Gastropods samples and abiotic parameters were taken at 9 stations with three repetitions. Result of research showed that 9 species of Gastropods were found, those are Bellamya javanica, Brotia costula, Brotia testudinaria, Indoplanorbis exustus, Lymnea rubiginosa, Melanoides granifera, Melanoides tuberculata, Pomacea canaliculata and Thiara scabra. Station 7 which located at outlet of the Situ Salam has the highest number of species as well as highest diversity index that is 9 species and H? = 1,74, respectively. Melanoides tuberculata was the most abundance species with the relative abundance value of 48,5%."