Kajian Pemanfaatan Jenis Burung Air di Pantai Utara Indramayu, Jawa Barat

Studi pemanfaatan jenis burung air di pantai utara Indramayu, Jawa Barat dilakukan pada bulan Agustus-Oktober 2002. Berdasarkan hasil pengamatan di lapang tercatat delapan jenis burung air, di mana dua jenis di antaranya merupakan jenis burung migran. Kegiatan menjaring burung merupakan pekerjaan sampingan dari penduduk desa sekitar pantai utara Indramayu, yang pada umumnya bekerja sebagai petani, untuk menambah pendapatan keluarga. Hampir semua masyarakat desa dari kelas usia produktif melakukan kegiatan tersebut dan menjualnya ke penampung. Setelah daging burung digoreng, siap dikonsumsi oleh masyarakat. Dua jenis burung air yang populer dikonsumsi oleh masyarakat adalah segrek (Gallirallus striatus) dan kuntul (Egretta intermedia). Perlu upaya pengendalian aktivitas masyarakat dalam memanfaatkan potensi jenis burung tersebut, agar pemanfaatan sumber daya fauna tersebut dapat berlangsung secara berkelanjutan

Pengaruh Pengelolaan Hutan Produksi terhadap Keragaman Jenis Plasma Nutfah Perairan

Pengelolaan hutan produksi dengan model penebangan Reduced Impact Logging (RIL) membuat pembukaan tajuk seluas 13,3% yang relatif lebih kecil dibandingkan dengan penebangan konvensional (CNV) dengan pembukaan tajuk seluas 19,2%, memberikan pengaruh yang berbeda terhadap keanekaragaman hayati perairan. Ketersediaan nutrisi dan hara penting yang lebih baik di perairan kawasan RIL ditunjang oleh tingginya residu terlarut 95% dan rendahnya kecepatan aliran air sungai 50% dari perairan sekitar CNV. Kondisi fisik perairan yang demikian menunjukkan perbedaan nyata terhadap perbandingan nitrat dan fosfat (N/P rasio) di RIL dan CNV, yaitu 77,5 dan 51,3. Nilai ini menunjukkan kadar nitrat perairan yang tinggi, dan perairan berada dalam tipe oligotropic. Indeks keragaman jenis plankton di RIL 1,754 dan di CNV 1,682 dengan populasi masing-masing 12.916 individu/liter dan 7.222 individu/ liter. Jumlah plankton ini berkorelasi positif dengan N/P rasio (r = 0,9). Di perairan sekitar DAS areal penelitian terdapat 28 jenis ikan tergolong kedalam 20 genera dan 8 famili. Famili dominan adalah Cyprinidae 57,14%, Bagridae 17,14%, dan Anguillidae 7,14%. Sebagian besar ikan jenis endemik Kalimantan terdapat pula di kedua perairan RIL dan CNV, tetapi jenis yang mempunyai kerapatan dan frekuensi relatif tinggi ditemukan lebih banyak di perairan RIL

Status Populasi Dan Kondisi Habitat Surili {Presbytis Comatd) Di Cagar Alam Situ Patengan, Jawa Barat*[the Population Status and Habitat Condition of Grizzled Leaf Monkey, Presbytis Comata in Situ Patengan Nature Reserve, West Java]

Population and habitat survey was conducted in June-July 2000, at Situ Patengan Nature reserve, which aimed to record the current population data and habitat conditions. We recorded seven groups of grizzled leaf monkey/surili occurred at nature reserve, with number of 3 individual were vary between 4-8 individual each group and population density of 17/km . Sex ratio of individuals were 1:1.86, with percentage of age structures consisted of 17.95% adult male, 33.33% adult female, 25.64% juvenile, 20.51% offspring and 2.56% infant. Vegetation analysis recorded 56 species of plants found in the reserve. Some of the species were dominance, i.e. pasang (Quercus sp.), kihiur {Castanopsis javanica) and puspa {Schima walichii). Since population survey were conducted by Ruhiyat (1983) with population 2 3 density of 35 individuals/km and Adriana (1995) with population density of 3.5 individuals/km , the population density of the monkeys shown trend of decreasing. The reserve, located adjacent with some plantation areas and production forest area of Perum Perhutani, isolated the forest. This condition predicted as a potential threat to the habitat and population of the monkeys. The monkey's population will be a doomed population in the future

Pola Perilaku Pasangan Owa Jawa (Hylobates Moloch) Rehabilitan Dalam Kandang Perjodohan Di Pusat Rehabilitasi Primata Jawa (Javan Primates Rehabilitation Center) Patuha – Ciwidey Jawa Barat

Owa jawa atau Silvery gibbon merupakan primata endemik yang hanya ditemukan di pulau Jawa.Primata ini masuk dalam kategori terancam punah (PP No. 7 1999; IUCN 2009) yang mendapatkan prioritas pelestarian tinggi melalui program rehabilitasi dan pelepasliaran ke alam.Owa jawa merupakan hewan monogami atau hanya setia pada pasangannya saja. Dalam proses rehabilitasi penjodohan individu jantan dan betina Owa jawa merupakan persyaratan wajib dalam program pelepasliaran. Tujuan dari penelitian ini untuk mengetahui pola aktivitas serta perilaku harian individu owa jawa rehabilitan yang dipasangkan di Pusat Rehabilitasi Primata Jawa (PRPJ).Hasil dari penelitian ini diperoleh hasil yang menunjukan Secara umum kedua pasang Owa jawa rehabilitan di Pusat Rehabilitasi Primata Jawa mempunyai pola aktivitas harian dan perilaku yang sama. Pola aktivitas dan perilaku harian kelompok Owa jawa di Pusat Rehabilitasi berbeda dengan yang ada di habitat aslinya. Berdasarkan uji statistik, secara umum menunjukan bahwa tidak ada perbedaan nyata pada setiap aktivitas antara individu jantan dan betina pada kedua pasangan owa jawa rehabilitan, kecuali pada aktivitas sosial Pasangan B menunjukan bahwa adanya perbedaan nyata antara invidu jantan dan betina ini diduga dipengaruhi oleh lama waktu pemasangan

Daily Activity of Proboscis Monkey (Nasalis larvatus Wurmb. 1878) in Disturbed and Degraded Habitat of Peat Swamp-Riparian Ecosystem of Rawa Gelam, at Tapin Regency, South Kalimantan-Indonesia

The daily activity of proboscis monkeys was studied on the degraded habitat of peat swamp ecosystem of Rawa Gelam, Tapin Regency, South Kalimantan Province. Data of daily activities were collected by followed the groups from early morning until late afternoon when the monkey went to the sleeping tree using the Scan sampling and Ad liebetum methods. The all of the groups observed has recorded almost have the same daily activities pattern, i.e. group 1 feeding 28.79%; moving 14.56%; resting 53,37% and social activity 3,28%. group 2 feeding 30.92%; moving 15.41%; resting 50.75% and social activity 2.91%. group 3 feeding 32.61%; moving 13.16%; resting 52.75% and soc[1]ial activity 1.47%, and group 4: feeding 32.08%; moving 13.97%, resting 51.64% and social activities 2.31%. Proboscis monkey eating leaves (89.4%), flowers (6.82%) and fruits (3.78%). The monkeys have different food preference when dry season and rainy season. Several times recorded proboscis monkey eating lotus flower. The monkeys used different height level when eating and resting. In dry season, the monkey mostly used 0-5 meters and used 5-10 meters in the rainy season. The lenght of daily range of proboscis monkey varies between 432 meters - 860 meters with an average length of 600.5 meters. Home range size of target groups of proboscis monkey were varied, which is group one 26 hectares, group two 32 hectares, groups three 21.25 hectares and group four 22.5 hectares. The daily activity of proboscis monkeys was studied on the degraded habitat of peat swamp ecosystem of Rawa Gelam, Tapin Regency, South Kalimantan Province. Data of daily activities were collected by followed the groups from early morning until late afternoon when the monkey went to the sleeping tree using the Scan sampling and Ad liebetum methods. The all of the groups observed has recorded almost have the same daily activities pattern, i.e. group 1 feeding 28.79%; moving 14.56%; resting 53,37% and social activity 3,28%. group 2 feeding 30.92%; moving 15.41%; resting 50.75% and social activity 2.91%. group 3 feeding 32.61%; moving 13.16%; resting 52.75% and soc[1]ial activity 1.47%, and group 4: feeding 32.08%; moving 13.97%, resting 51.64% and social activities 2.31%. Proboscis monkey eating leaves (89.4%), flowers (6.82%) and fruits (3.78%). The monkeys have different food preference when dry season and rainy season. Several times recorded proboscis monkey eating lotus flower. The monkeys used different height level when eating and resting. In dry season, the monkey mostly used 0-5 meters and used 5-10 meters in the rainy season. The lenght of daily range of proboscis monkey varies between 432 meters - 860 meters with an average length of 600.5 meters. Home range size of target groups of proboscis monkey were varied, which is group one 26 hectares, group two 32 hectares, groups three 21.25 hectares and group four 22.5 hectares. The daily activity of proboscis monkeys was studied on the degraded habitat of peat swamp ecosystem of Rawa Gelam, Tapin Regency, South Kalimantan Province. Data of daily activities were collected by followed the groups from early morning until late afternoon when the monkey went to the sleeping tree using the Scan sampling and Ad liebetum methods. The all of the groups observed has recorded almost have the same daily activities pattern, i.e. group 1 feeding 28.79%; moving 14.56%; resting 53,37% and social activity 3,28%. group 2 feeding 30.92%; moving 15.41%; resting 50.75% and social activity 2.91%. group 3 feeding 32.61%; moving 13.16%; resting 52.75% and soc[1]ial activity 1.47%, and group 4: feeding 32.08%; moving 13.97%, resting 51.64% and social activities 2.31%. Proboscis monkey eating leaves (89.4%), flowers (6.82%) and fruits (3.78%). The monkeys have different food preference when dry season and rainy season. Several times recorded proboscis monkey eating lotus flower. The monkeys used different height level when eating and resting. In dry season, the monkey mostly used 0-5 meters and used 5-10 meters in the rainy season. The lenght of daily range of proboscis monkey varies between 432 meters - 860 meters with an average length of 600.5 meters. Home range size of target groups of proboscis monkey were varied, which is group one 26 hectares, group two 32 hectares, groups three 21.25 hectares and group four 22.5 hectares

Efikasi Asap Cair Dari Kayu Laban (Vitex Pubescens) Terhadap Rayap Coptotermes Curvignathus

Efficacy of liquid smoke from laban wood (Vitex pubescens) against Coptotermes curvignathus. Antitermitic activities of liquid smoke produced from Vitex pubescens against C. curvignathus was evaluated in this study. This research was conducted in two steps, i.e. pyrolisis of liquid smoke and efficacy test of liquid smoke as antitermite. Three kinds of liquid smoke were produced at three different pyrolysis temperatures, i.e. 350 oC, 400 oC and 450 oC. Termiticidal activity was evaluated by a no-choice test. The research indicates that concentration of liquid smoke and pyrolysis temperatures significantly affected termite mortality and mass losses of the filter paper. The relationship between the concentration of liquid smoke (X) and termite mortality (Y) at 350 oC, 400 oC, and 450 oC were Y = 31,4 + 11,76X, (r2 = 0,60), Y = 30 + 11,86X (r2 = 0,59), and Y = 26,66 + 7,6X (r2 = 0,429). The relationship between concentration of liquid smoke (X) and mass losses (Y) at 350 oC, 400 oC, and 450 oC were Y= 85,12 -3,188X (r2 = 0,723), Y= 88,06 – 3,435X + (r2 = 0,953) and Y= 91,56 – 3,867X (r2 = 0,886)

Potensi Kawasan Budidaya di Pantai Utara Indramayu sebagai Habitat Burung Air

Studi potensi ekologi darilahan produksi dikawasanpantai utara Indramayu bertujuan untulcmengevaluasi nilai penting dari lahan tersebut sebagai habitat dalam melestarikan keanekaragaman jenis burung air. Hasil penelitian memperlihatkan bahwa pada tahun 1988 di daerah lahan basah di Desa Singakerta dan sekitarnya dijumpai 27 jenis burung air di mana 14 jenis di antaranya merupakanjenis burung rnigran. Namun dalam pengamatan ini hanya dijumpai delapan jenis burung air, di mana dua jenis di antaranya merupakan burung rnigran. Hampir seluruh lahan basah di Desa Singakerta dan sekitarnya telah berubah menjadi tambak dan persawahan. Berdasarkan basil penelitian ini disimpulkan bahwa lahan basah yang terdiri daritambak dan persawahan tersebut mempunyainilai fungsi esensial sebagai habitat dari berbagai jenis burung air. Saat ini Perubahan habitat yang terjadi oleh adanya Perubahan fungsi lahan telah mengancam keanekaragaman dan populasi jenis burung air. Karena berbagai fungsi habitat seperti sebagai penyedia sumber pakan, tempat perlindungan, tempat berkembang biak, dan perawatan anak telah rusak akibat aktivitas manusia. Kami merekomendasikan bahwa seluruh lahan basah di kawasan tersebut yang mempunyai nilai penting bagi perlindungan jenis burung air di luar kawasan konservasi, sebaiknya ditetapkan sebagai daerah perlindungan khusus, dan dikelola berdasarkan pengelolaan sumberdaya alam berkelanjutan serta diatur oleh suatu Peraturan Daerah (Perda). Dengan demikian kawasan lahan basah tersebut masih tetap dapat dikeIola dan dimanfaatkan oleh masyarakat, dalam rangka meningkatkan pendapatan mereka; di lain pihak kawasan tersebut juga tetap dapat sebagai habitat bagi berbagai jenis burung air

Identifikasi Keanekaragaman Jenis Fauna di Gua Garunggang

The objective of this research is to get Index of species diversity and habitat habitat characteristic in Garunggang Cave in July 2017. The method used is the method of moving observation and time search. A total of 302 individuals consisting of 5 groups of taxa found in Cave of Garunggang (entrance 3). Species diversity in Cave of Garunggang in relatively medium condition (1 <H '<3) with value of diversity index (H') 1,9 based on variable of diversity type using Shannon-Wiener index. Based on its dominance there are 6 faunas that dominate, namely Hipposideros galeritus, Karstarma jacobsoni, Rhaphidophora Sp, Stygophrynus dammermani, Long leg spiders, and Small spiders. The fauna inside the Cave of Garunggang has a unique habitat such as on the floor, walls and roof of the cave. Cave Garunggang is a horizontal cave with a cave mouth circumference of about 3.7 meters and aisle length about 209 meters. This cave is karst cave (limestone). The diameter of the alley of the cave varies with underground rivers with stone and soil substrate and clear watery. The hallway inside the cave is branched off with several ornaments. In the rainy season the aisles become full of water and become a large underground river, evidenced by the presence of litter on the walls and roof of the cave that was carried by the water during the rainy season. The habitat characteristic of the exokarst Cave of Garunggang is known that the Cave of Garunggang has four zones within it, ie bright zone (cave mouth), transition zone, dark zone and total dark zone. At the bright zone (cave mouth) the temperature ranges from 31.8 ° C - 29.9 ° C, the humidity (Rh) ranges from 67.7% - 76.2% and the light intensity ranges from 475.3 - 848 Lux. At the temperature transition zone ranging from 30.4 ° C - 32.2 ° C, the humidity (Rh) ranges from 72.8% - 77.7%, the light intensity shows 0 Lux and the pH indicator shows the number 7 (normal water). In the dark zone the temperature ranges from 31.4 ° C - 30.4 ° C, the humidity (Rh) ranges from 77.1% - 79.1%, the light intensity shows 0 Lux and the pH indicator shows the number 6 (normal water). The final zone is a total dark zone with temperatures ranging from 30.1 ° C - 30.8 ° C, the humidity (Rh) ranges from 79.7% - 79.2%, the light intensity shows 0 Lux, and the pH indicator shows the number 6 (normal water)

Persepsi Masyarakat terhadap Konservasi Harimau Sumatera (Panthera Tigris Sumatrae) di Taman Nasional Kerinci Seblat (Studi Kasus Desa Pungut Mudik dan Desa Pungut Hilir)

Perceptions and community participation in Sumatran tigers (Panthera tigris sumatrae) also influence the success of conservation efforts. For this reason, this study aims to describe the level of public perception of Sumatran tiger conservation efforts. This research uses the case study method. Data was collected using a questionnaire, in-depth interviews and focus group discussions (FGD). Data collection was carried out by means of purposive sampling involving 30 respondents, namely farmers who live and move around the national park. The data collected was analyzed descriptively qualitatively. The results of this study indicate that public knowledge about tigers as animals protected by law has perceptions in the high category (4.03), public knowledge about tiger behavior has a high category (3.93) and public knowledge that tigers currently lack food so often seen in villages that have a very high categorization (4.4). In addition, community knowledge about the ecological benefits of the presenceof Sumatran tigers in the environment has a high category (3.90), public knowledge about the economic benefits of the existence of Sumatran tigers has a high category (3,53). Likewise with public knowledge about the social benefits of the existence of Sumatran tigers have a high category (3.67). The government and various parties are urgently needed to increase the understanding and active role of the community for Sumatran tiger conservationefforts

Populasi dan Pola Aktivitas Harian Biawak Air (Varanus Salvator) di Kawasan Konservasi Laut Daerah Pulau Biawak, Indramayu

Salah satu penyebaran biawak air di Pulau Jawa adalah di Pulau Biawak. Pulau Biawak merupakan Kawasan konservasi Laut daerah yang di kelola pemerintah daerah Indramayu dibawah kementerian Kelautan dan Perikanan. Satwa yang khas di Pulau ini adalah Biawak Air (Varanus salvator). Penelitian ini bertujuan untuk mengetahui populasi dan pola aktivitas harian biawak air di Pulau Biawak. Penelitian ini populasi menggunakan metode transek jalur yang dianalisa menggunakan metode King, sedangkan perilaku harian menggunakan metode ad liebitum dan focal animal sampling dengan menghitung frekuensi perilakunya. Dilakukan pencatatan suhu dan kelembaban sebagai faktor lingkungan dan analisis vegetasi sebagai habitat biawak air.Hasil penelitian menunjukkan populasi biawak air di Pulau Biawak berkisar antara 94,8 – 385,2 dengan rata rata populasi 240 individu dengan kepadatan populasinya adalah 2 ind/ha. Pada penelitian pola perilaku harian biawak air di Pulau Biawak menunjukkan perbedaan perilaku pada setiap kelas umurnya. Pada perilaku harian, perilaku makan di Pulau Biawak cenderung lebih rendah dibandingkan tempat lain, sedangkan sebaran temporal perilaku biawak air di Pulau Biawak tidak berbeda jauh dengan biawak air di tempat lain