Jurnal Wasian

09 - 16

Authors: Diah Irawati Dwi Arini

This study aims to determine species and conservation status of Rallidae family in Forestry and Environment Research and Development Institute of Manado; also the prospect of its development. This study may provide a source of data and information on the diversity of certain bird species. Observations conducted in June 2015 included the species of birds in Rallidae family found around the Forestry and Environment Research and Development Institute of Manado. Data were analyzed descriptively in the forms of figures and tables. Results showed that there were three species within this family found in Manado Forestry Research Institute. Those were isabelline bush-hen (Amaurornis isabellina), buff-banded rail (Gallirallus philippensis), and Barred Rail (Gallirallus torquatus). All three species are not protected in Indonesia and IUCN categorized them as Least Concern (LC). Isabelline bush-hen is endemic to the island of Sulawesi, while buff-banded rail and barred rail have a wide distribution. Weris has a good prospect to be domesticated.

25 - 38

Authors: Supratman Tabba, Lis Nurrani

Aketajawe Lolobata National Park (TNAL) is a protected area for paradise birds, parrots and others North Maluku endemic wildlife. As a former of commercial logging concessions, this areas have been damaged and loss of wildlife habitat. The purpose of this research was to determine bird species of TNAL area based on zone category, this research is important in order to validate data related to the birds species diversity. Data collection used the observation point system with purposive sampling by direct observation and audio. The number of observation points were six points in core zone, ten points in both of jungle and traditional zone, and six points in buffer zone. Research showed that there are 39 species found in the buffer zone, 45 species in jungle and traditional zone, and 19 species in core zone. Wallace’s standardwing (Semioptera wallacei) is one of the 15 endemic species of North Maluku was found along drummer rail (Habroptila wallacii) which is Halmahera’s endemic species. Distribution pattern of birds in TNAL is very varied. The jungle and traditional zone have the amount and the highest species diversity while the highest species variation was in the buffer zone. The natural habitat of bird in this area generally located in open area along former road skid as well as forest edge and only a few were found in primary forest of core zone.

45 - 50

Authors: Nurlita Indah Wahyuni, Hendra Susanto Mokodompit

Most of primary forest after exploitation era in Indonesia was converted into secondary forest including Forest Management Unit of Poigar. On the other hand the understanding of forest vegetation will help ecology restoration efforts. This study aims to analyze the structure, composition and tree species diversity of Inobonto Poigar I. In order to accomplish the proposed objectives, 31 plots of 20 m x 20 m were randomly established in the forest area where number and name of tree species in each plot was identified and counted. The research was conducted on September 2014 and recorded a total of 78 species within measured plot. The average basal area of the forest was 16,77 m2/ha and the size class distribution was different from primary forest which is resembled a reserved J-shaped pattern. Trema orientalis was found as the dominant species among tree and pole levels, whereas Piper sp. dominated sapling level respectively. The Shannon-Wiener index showed that sapling has the higher diversity than tree and poles. The result of structure and composition analysis of vegetation has indicated that Inobonto I forest is secondary forest.