The levels of land development process typically followed by changes in the vegetation structure of the ecosystems that comprises it. In a process, interventions whether artificial (human) or naturals were able to affect land development, either support or hinder. Some of the interventions that possible to occur are human activities through revegetation and land use, such as agroforestry practice (AF). The levels of land development through the shift of AF development phase common followed by changes in the vegetation inside. In terms of ecology, the mechanism of how the AF development phase affects the community structure is important to know. This research was conducted to determine the community structure of ants under the AF ecosystem and it is functional groups. In addition, we devided the AF system based on its developmental phase (early, middle, and advance). The data was obtained in the area of Nglanggeran, Gunung Kidul Regency of Yogyakarta during the dry season (April, May, June, August, and September). Meanwhile, method of ant collection utilized pit-fall trap and direct collection method. A total 7 species of ants were obtained consisting Odontoponera denticulate (Ponerinae), Odontomachus sp. (Ponerinae), Anaplolepis gracilipes (Formicinae), Pheidologeton sp. (Myrmicinae), Camponotus sp. (Formicinae), Polyrachis sp. (Forminae), and Crematogaster sp. (Myrmicinae). The AF phase are not followed by different species of ants but has an impact on the species abundance. The highest species diversity and the largest number of individual ants were found in middle, early, and advanced AF, respectively. Furthermore, there are 5 ant functional groups with variouss abundance based on AF phase. The early AF is more suitable for Generalized myrmicinae (GM) groups, middle for Dominant opportunist (DO) and GM groups, while advanced for Forest opportunist (FO) groups. INTISARITingkat perkembangan lahan umumnya diikuti dengan perubahan struktur vegetasi penyusun ekosistem yang ada didalamnya. Dalam perjalanannya, muncul intervensi yang dapat mempengaruhi tingkat perkembangan lahan baik mendukung ataupun menghambat. Salah satu bentuk intervensi yang dapat terjadi adalah berupa aktivitas pemanfaatan lahan, sistem agroforestri (AF). Pergeseran tingkat perkembangan lahan melalui pendekatan tingkat perkembangan AF diikuti perubahan vegetasi penyusun menuju kearah ekosistem yang mendekati HASIL PENELITIAN Riwayat Naskah :Naskah masuk (
Asmin Tropical Rain Forest Conservation 2 is a tropical natural forest which is a conservation area of PT Asmin Bronang Kapuas, Central Kalimantan. The designation of new areas was carried out in 2018 and there was no research in the area that required data collection on the types of constituents of the area. The purposes of this research were to determine species composition, species diversity index, species evenness index, species richness index, and species dominance index. The method used in this study was collecting data on plants in area of 54.6 hectares with a sampling intensity of 1% using the Uniform Systematic Distribution Sampling with Random Start pattern. There are 14 plots in the form of nested samples with designations for 4 levels of plants (seedlings, saplings, poles, and trees). Results of the research showed that vegetation species composition was dominated by Shorea smithiana (Mahambung) of the Dipterocarpaceae family. Shorea parvifolia (Red Meranti), Euzyderoxylon zwageri (Ulin), Shorea smithiana (Mahambung), Mezzetia parviflora (Pisang-pisang), Syzygium spp. (Jambu-jambu), and Memecylon sumatrense (Kamasulan) are the 6 species that have the best regeneration rate, which are found at all plant levels. The highest IVI was Shorea smithiana (Mahambung) at the seedling was 46.55, pole 55.68, and tree 32.02 levels. At the sapling level, the highest IVI was Baccaurea bracteata Muell (Rambai forest) was 28.76. The species diversity index from seedling to pole level was moderate. At the tree level, the species diversity index was high (3.23). Species evenness index from seedling to tree level including height (0.82-0.92). The species richness index from seedling to pole was moderate. At the tree level, the species diversity index was high (7.45). The species dominance index of all levels was included in the low category (0.05-0.15).
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