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"Penelitian mengenai pengaruh gradien ketinggian terhadap variasi morfologi rotan Calamus javensis Blume (Arecaceae) telah dilakukan di Gunung Kendeng, Taman Nasional Gunung Halimun Salak (TNGHS), Jawa Barat. Penelitian tersebut bertujuan mengetahui variasi morfologi, sebaran variasi morfologi populasi C. javensis terhadap ketinggian, serta mengidentifikasi karakter morfologi tertentu yang dipengaruhi ketinggian. Sebanyak 16 karakter morfologi C. javensis yang meliputi organ batang dan daun dianalisis menggunakan Cluster Analysis (CA) dan Principal Component Analysis (PCA). Penelitian dilakukan pada kisaran ketinggian 1000--1300 mdpl, namun populasi C. javensis di Gunung Kendeng sudah tidak dijumpai pada ketinggian 1200--1300 mdpl. Hasil CA menunjukkan adanya 3 kelompok C. javensis berdasarkan variasi morfologi di Gunung Kendeng, TNGHS. Kelompok 3 yang memiliki karakter jumlah duri jarang serta leaflet basal spreading merupakan C. javensis var. inermis. Hasil PCA menunjukkan bahwa karakter yang berperan dalam variasi morfologi populasi C. javensis meliputi leaflet basal, jumlah duri upih, panjang petiolus, bentuk leaflet basal, diameter batang, dan panjang duri upih. Sebaran variasi morfologi berdasarkan ketinggian masih tumpang tindih. Hasil analisis regresi linier sederhana menunjukkan bahwa gradien ketinggian tidak memberikan pengaruh yang signifikan pada ke-16 karakter morfologi populasi C. javensis pada ketinggian 1000--1200 mdpl. Dapat disimpulkan bahwa karakter morfologi dari C. javensis pada ketinggian 1000--1200 mdpl di gunung Kendeng belum menunjukkan clinal variation.

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Altitudinal gradient effect on morphological characters of Calamus javensis Blume (Arecaceae) has been studied in Mountain Kendeng, Mountain Halimun Salak National Park (MHSNP), West Java. The goals of this study were to analyze morphological variation and variation distribution of C. javensis population, also to identify certain characters that affected by altitudinal gradient. 16 morphological characters from stem and leaf were analyzed using Cluster Analysis (CA) and Principal Component Analysis (PCA). The range of altitude that used in this study was 1000--1300 mdpl, but C. javensis population was absent in 1200--1300 mdpl. CA classified C. javensis specimens into 3 groups. The third group, characterized by few spines on its leaf sheath and spreading basal leaflet, was identified as C. javensis var. inermis. Characters that were analyzed using PCA showed that basal leaflet, spine abundance of leaf sheath, petiole length, basal leaflet shape, stem diameter, and leaf sheath spine length were important characters in morphological variation of C. javensis. Morphological variation of C. javensis showed overlapped distribution. Simple linear regression analysis showed there was no character of C. javensis that significantly affected by altitudinal gradient. In conclusion, morphological characters of C. javensis population in Mountain Kendeng, MHSNP, from 1000 to 1200 m.a.s.l. had not showed the clinal variation yet."

"Paradigma sektor kehutanan masih memandang kayu sebagai hasil utama mengakibatkan tingginya angka deforestasi di Indonesia. Padahal banyak hasil hutan lainnya yang dapat dimanfaatkan dan mempunyai nilai ekonomi tinggi. Salah satu manfaat hutan yang belum terestimasi nilainya yaitu jasa lingkungan terutama wisata. Dan fungsi hutan yang mempunyai manfaat wisata salah satunya di Taman Nasional Gunung Halimun Salak (TNGHS). Salah satu bagian dari TNGHS yaitu Resort PTNW Gunung Salak I yang mempunyai daya tarik tersendiri yaitu sebagai field project Suaka Elang. Pada Resort PTNW Gunung Salak I terdapat 2 (dua) lokasi wisata yaitu bumi perkemahan Loji dan Wana Wisata Sukamantri. Penelitian ini bertujuan untuk memperoleh nilai ekonomi wisata dari lokasi tersebut. Metode penelitian ini menggunakan metode TCM dan CVM untuk mengetahui nilai ekonomi dari kawasan wisata. Dan nilai surplus konsumen untuk metode TCM Resort PTNW Gunung Salak I sebesar Rp. 909.000 per individu/tahun atau Rp. 6.635.700.000/tahun, sedangkan untuk nilai WTP kondisi saat ini sebesar Rp. 8.500 dan untuk kondisi masa akan datang sebesar Rp. 9.700.

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The paradigm of forestry sector still sees wood as the primary outcome resulted in high rates of deforestation in Indonesia. Whereas many other forest products that can be utilized and have high economic value. One of the benefits from forests that have not estimated is environmental services value, especially forest tourism. And one part of forests that have tourism benefits is Mount Halimun Salak National Park. One part of the national park that has a special attraction as a field project of Raptor sanctuary is PTNW Mount Salak I Resort. In PTNW Mount Salak I Resort there are 2 (two) tourist sites, which are Bumi Perkemahan Loji and Wana Wisata Sukamantri.

This study aimed to obtain economic value from the site. This research using TCM and CVM method to determine the economic value from tourist area. The value of consumer surplus for TCM method PTNW Mount Salak I Resort is Rp. 909 000 per individual/year or Rp. 6.635.700.000/year, while for WTP value for current state of Rp. 8.500 and for the future condition of Rp. 9.700."

"Pulau Jawa merupakan habitat bagi 6 spesies primata. Lutung budeng (Trachypithecus auratus) merupakan salah satu primata endemik pulau Jawa yang memiliki ukuran tubuh sekitar 517 mm dengan panjang ekor rata-rata 742 mm. Persebaran lutung budeng di Jawa Barat tercatat di 12 lokasi, termasuk Taman Nasional Gunung Ciremai dan Taman Nasional Gunung Gede Pangrango. Namun, studi mengenai populasi lutung budeng di kedua taman nasional tersebut masih kurang. Berdasarkan hal tersebut, maka dirumuskan penelitian ini dengan tujuan untuk mengetahui ukuran populasi, kepadatan populasi, dan laju perjumpaan lutung budeng di kedua kawasan taman nasional tersebut. Ukuran populasi lutung budeng yang teramati tidak memiliki perbedaan jumlah individu di dalam kelompoknya. Kepadatan populasi lutung budeng tertinggi berada di Gunung Putri, sedangkan yang terendah di Cilengkrang. Laju perjumpaan lutung budeng tertinggi terdapat di Palasari dan terendah di Cilengkrang. Kehadiran lutung budeng dipengaruhi oleh tingginya persentase tutupan kanopi dan tingkat aktivitas manusia di jalur pengamatan. Selain itu, faktor cuaca, jarak pandang pengamat, dan kemampuan pengamat dalam mendeteksi keberadaan lutung budeng juga memengaruhi data yang dihasilkan.

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Java Island is a habitat for 6 primate species. Ebony leaf monkey (Trachypithecus auratus) is one of the endemic primates in Java, which has a body size of about 517 mm with an average tail length of 742 mm. Distribution of ebony leaf monkey in West Java is recorded in 12 locations, including Mount Ciremai National Park and Mount Gede Pangrango National Park. However, there is a lack of studies of ebony leaf monkey population in those two national parks. Based on this, this study was formulated with the aim of knowing the population size, population density, and the encounter rates of ebony leaf monkey in those two national park areas. The observed population size of ebony leaf monkey did not differ in the number of individuals in the group. The highest population density of ebony leaf monkey is in the Gunung Putri, while the lowest is in the Cilengkrang. The highest rate of encounter with the lutung budeng was on the Palasari and the lowest was on the Cilengkrang. The presence of the ebony leaf monkey is influenced by the high percentage of canopy cover and the level of human activity in the observation path. In addition, weather factors, observer visibility, and observer ability to detect the presence of ebony leaf monkey also affect the resulting data."

"Palms diversity composition, and density i six selected sites of 15 rectangular plots of 100 x 20 m were successfully studies. The sites are in kasepuhan ciptagelar, which located in the Gunung Halimun Salak National Park in West Java. The sites are in the disturbed primary submontane forest at 800 to 1400 m altitude. Ethnobotanical observations made in some of the villages in kasepuhan ciptagelar proceeded through informal unending open interviews involving some traditional elders, prominent communities, and handicraftsmen. There is no species addition to the park from the kasepuhan cigelar. Three species of rattans (calamus polystachys, C. burckianus, and korthalsia laciniosa) are added to the park from Cibedug, Leuwijaming, Ciptarasa, and Cikidang. Young leaves of doemonorops rubra are used for traditional inner baduy cloth. The use of C. javensis canes for bracelets and rings, and the infructescence of plectocomia elongata for decoration are new findings "