37 research outputs found
Analisis Pola Penggunaan Ruang Dan Wilayah Jelajah Banteng (Bos Javanicus D'alton, 1832) Di Taman Nasional Alas Purwo Jawa Timur
Research on the pattern of bull's spatial and homerange in Alas Ppurwo National Park, was carried out in 2 months, i.e. April-May 2006. The observation was done at four vegetation types were low-land forest, coastal forest, planted forest and grazing area. The dominant activities of bull's on each type of vegetation were resting at lowland forest, briniy at coastal forest, and feeding at planted forest and grazing area (pasture field). Bull's homerange in rainy season was 3,37 km2 with 21,1 km was travelled distance
Preferensi Dan Pendugaan Produktivitas Pakan Alami Populasi Gajah Sumatera (Elephas Maximus Sumatranus Temmick, 1847) Di Hutan Produksi Khusus (Hpkh) Pusat Latihan Gajah (Plg) Sebelat, Bengkulu Utara
The isolation of habitat, shrinking of natural habitat and diminishing of habitat quality have increased conflicts between man and elephant to utilize space and abundance of food. This research was carried out from April to June 2007 in Seblat Training Centre for Elephants. The objectives of this research were to recognize the potential of food plants for the elephants, the productivity of food plants, types and parts of food plants favoured by the elephants, and preferential of specific food plants and feeding behaviour. The analysis was conducted by means of vegetation analysis, through cutting and pruning parts of feeding plants, studying them and running statistical procedures to acquire conclusions about the food plant species. The analysis was followed by observing the feeding behaviour of the elephants on foot. Ground plant species which were potential as elephants' feed comprised of 36 species, 29 spesies at seedling level, 26 species at sapling level, 24 species at pole level and 29 species at tree level. The highest productivity for sapling and pole levels are Leea indica and for seedling level is Gigantochloa cf. atroviolacea. The feeding plants of elephants comprises of 245 species from which 11 parts of the plants preferred by the elephants. Gigantochloa cf. atroviolacea and Stachyphrynium sp were the most favored plant species, indicated by the highest preferential index. The feeding behaviour of elephants could be categoried into 8 categories
Analisis Faktor Ekologi Dominan Pemilihan Kubangan Oleh Badak Jawa (Rhinoceros Sondaicus Desmarest 1822) Di Taman Nasional Ujung Kulon
The characteristic of wallow can be one of standard or criteria of the javan rhino habitat which will be used for selection strategy of further javan rhino's wallow. The objective of this study is to identify the wallow characteristic of javan rhino both physical and biological factors that need for identifiying the dominant ecological factor in determining wallow selection strategy for javan rhino. The data that were collected consisted of physical characteristic javan rhino's wallow i.e. the length and the width of wallow, the depth of mud and water of wallow, water pH inside the wallow, the height of wallow site, the temperature and humidity, and the distance from wallow to the coastal, river, and from human access. The biotic characteristic aspects of javan rhino' wallow that were observed consisted of the number of javan rhino' feed and the total density of vegetation spread around the wallow according to result of vegetation analysis. Based on the result of factor analysis, the dominant ecological factor that affect wallow selection are the height of the site (10-87 mdpl), air temperature (26-29°C), and tree density (25-174 ind/ha)
Keanekaragaman Jenis Burung Di Beberapa Tipe Habitat Taman Nasional Gunung Ciremai (Diversity of Bird Species at Some Habitat Type in Ciremai Mountain National Park)
Research about Diversity of bird species at some habitat type in Ciremai Mountain National Park conducted by two months (Juni-Juli 2006). This research aim to compile the list of bird species at some habitat type, comparing bird species at some habitat type and studythe use of vegetationy by the birds. To count of the birds were used Point Count with Index Point Abundance (IPA), and to analysis of thebird diversities were used Index Shannon-Wiener. Result of research were found as much 78 bird species of 26 families; 62 species of 23families were found in primary forest, 37 bird species of 18 families were found in secondary forest, 24 bird species of 13 families werefound in garden. The highest bird diversity (H\u27=3.90) was found in the primary forest. The strata of vegetation with the highest use on allthree habitat types were the third and fourth strata
Penentuan Bentuk dan Ukuran Plot Contoh Optimal Pengukuran Keanekaragaman Spesies Tumbuhan di Hutan Pegunungan Bawah
Several recent books have focused on the importance of biological diversity but none contain precise methodologies to measure it. The purpose of this study is to determine the shape and size optimal sampling plot to measure the plant species diversity in highland tropical rain forest base in a case study on the Betung Kerihun National Park (TNBK). Data were collected in the TNBK, Kapuas Hulu Regency , East Kalimantan on July till August 2015. The data collection was carried out by making five shape sampling plot such as rectangle and square with different size. Variables collected are the number of individuals species of plant from seedlings, saplings, poles, and trees. Data were analyzed using Annnova test and least significance difference (BNT). The result showed that the total species richness observed on squares and rectangles plot respectively 306 , 761 , 142 , 265 , and 156 species of plants with the dominant are Dipterocarpaceae Family. The optimal dimensions plot for measurement the plant diversity are rectangular shape with dimensions of length adhering the contour with a size 50x200 m2
Pendugaan Model Pertumbuhan Dan Penyebaran Spasial Populasi Rusa Timor (Cervus Timorensis De Blainville, 1822) Di Taman Nasional Alas Purwo Jawa Timur
Timor deer is ruminant mammals' species with high adaptability which enable them to be introduced easily in to new habitat. The animal was experiencing population decrease which put them in the rare status. The research was aimed at the estimation of demographic parameter, population growth model, and the determination of spatial distribution pattern of the timor deer population in Alas Purwo National Park (APNP). Animal inventory was conducted using strip transect method with sample unit of 1.5 km length and 100 m width strips. Analyses were conducted on demography parameter (size and density, sex ratio, birth rate/natality and mortality), spatial distribution pattern, and population growth model estimation. The result showed that timor deer in APNP has population size of 8157 ± 1224 individuals with population density of 0,20 ± 0,03 individuals/ha. Population size in general was 1 – 8 individuals/group. The age structure of the population was progressive population with reproductive sex ratio of 1 : 2.3. Rough birth rate/natality was 0.19, while juvenile and fawn mortality was 0.13 and 0.31. The population was spatially distributed in group. Growth model of Timor deer was logistic model, with population growth rate of 0.22 in 38,844 individuals/year habitat carrying capacity
