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SPATIAL AND TEMPORAL DISTRIBUTION OF NATURAL ENEMIES VISITING REFUGIA IN A PADDY FIELD AREA IN MALANG Wiwin Maisyaroh; Bagyo Yanuwiadi; Amin Setyo Leksono; Zulfaidah PG
AGRIVITA, Journal of Agricultural Science Vol 34, No 1 (2012)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v34i1.143

Human activities in seeking agricultural lands, has change the traditional agricultural system into intensive cultivation system. One effort to minimize intensive agriculture system is the use of natural enemies to control pests. Habitat management should be implemented by creating habitat favored by natural enemies. This research aims to determine the spatial and temporal distribution of natural enemies of wild plants: Mimosa pudica, Vernonia cinera, Marsilea crenata, and Pistia startiotes on agricultural land. This research was conducted in March-April 2010 in Malang Sawojajar farmland. Plants placed in the corner field (refugia areas), visiting insects was observed starting from refugia areas and two meters away from the refugia area. Observations of insect use the "visual control" metode. The results showed that natural enemies visiting to the refugia areas were 6 orders (15 families): Coleoptera, Odonata, Aaraneae, Hymenoptera, Diptera, and Orthoptera. Not all natural enemies have spatial and temporal distribution, only 9 families who indicate a pattern spatial or and temporal distribution. Overall, natural enemies do not show any significant spatial pattern (F> 0.05), but indicate a temporal pattern (F

Hubungan Lingkungan Tanah Dengan Virulensi Jamur Entomopatogen Pada Tanaman Padi Rose Novita Sari Handoko; Aminudin Afandhi; Amin Setyo Leksono; Mufidah Afiyanti
Folium : Jurnal Ilmu Pertanian Vol 6, No 1 (2022): Folium : Jurnal Ilmu Pertanian
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/folium.v6i1.15407

High ecosystem diversity can control pest populations. Rice is a staple food that continues to be researched for interesting things. Indonesia is ranked 3rd for production at the international level. The research was conducted through a survey of plants and paddy fields with conventional application in Kasembon Malang. Standard chemical fertilizer and pesticide application were used in this field. A total of 5 diagonally determined soil sample points were used in this study. The dilution method was carried out for the analysis of entomopathogenic fungi which were then tested using the Koch’s Postulate method on Tenebrio molitor, then observed the symptoms and mortality of Spodoptera litura during the pathogenicity test. The diversity value also demonstrated a medium diversity. We conclude that an application of pesticides and chemical fertilizer according to recommended practices, are not negatively affect the diversity of entomopathogenic fungi. Aspergillus sp and Penicilium sp can cause death against Spodoptera litura.

Influence of Porang (Amorphophalus muelleri) Cultivation On The Composition of Soil Arthropods In Tropical Agroforestry Areas In East Java, Indonesia Amin setyo Leksono; Bagyo Yanuwiadi; Kusuma Zaenal; Akbar Farid; Fujianor Maulana
Journal of Tropical Life Science Vol. 1 No. 2 (2011)
Publisher : Journal of Tropical Life Science

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This research was conducted on July to October 2010 to evaluate the effect of porang cultivation on the abundance, diversity and composition of soil Arthropods. Change in the abundance, diversity and composition of soil Arthropods was observed using pitfall traps in two study sites (Jember and Madiun). In each study site, samplings were performed in porang cultivation land and non-porang area. A total of 15 traps were put in three lines at each location. The differences in the abundance and diversity were analyzed by using multivariate analyze tests. The soil Arthropod compositions in all locations were compared with Bray-Curtis similarity index. The effect of environmental factors on the arthropod compositions was analyzed using multiple regression. The result showed that the effect of porang-cultivation was not consistent in two study sites. In Madiun, the abundance of soil Arthropods in porang cultivation land was slightly higher than that in non-porang, while the diversity was significantly higer in the former location. In contrast the those in Jember was found in vice versa situation. This study indicate that the effect of porang-cultivation was not subtantial to the composition of soil Arthropods. Therefore practice non harmful porang cultivation should be promoted as a part of agroforestry sistem in both study sites.Keywords: Agroforestry, conservation, pitfall traps Soil Arthropods composition

Composition and Diversity of Soil Arthropods of Rajegwesi Meru Betiri National Park Hasan Zayadi; Luchman Hakim; Amin Setyo Leksono
Journal of Tropical Life Science Vol. 3 No. 3 (2013)
Publisher : Journal of Tropical Life Science

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Meru Betiri National Park (MBNP) is one of the nature conservation area thathas the potential of flora, fauna, and ecosystems that could develop as a nature-based tourism attraction. The existence of certain indicator species was related to estimation of stress level and disturbance on ecosystem stability for making strategic decisions about the restoration in this area. One of the important indicator species at forest ecosystem were soil arthropods. Aim this research were analyzed composition and diversity of soil arthropods at Rajegwesi, MBNP areas. The methods in this research used pitfall trap, measurement of distribution structure and soil arthropods composition based on the Shannon - Wiener index, Morisita similarity index and Importance Value Index (IVI). The number of families and individuals of soil arthropods found in the coastal area of Rajegwesi consists of 10 order with 21 families (702 individual). The number of individuals of the order Hymenoptera, Coleoptera, Collembola and Araneida was more widely found. Soil arthropods diversity index on each land use indicated that soil arthropod diversity in these areas were moderate. Soil arthropod community of orchards and forest had a similarity of species composition, whereas soil arthropod community of savanna had a similarity of species composition with paddy fields.

Mammals and Bird Conservation Strategies Through Community-Based Wildlife Watching Ecotourism Development in Perhutani Area, Poncokusumo, Malang District, East Java Ika Yuni Agustin; Luchman Hakim; Amin Setyo Leksono
Biotropika: Journal of Tropical Biology Vol. 11 No. 1 (2023)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2023.011.01.06

Perhutani area in Poncokusumo is inhabited by endemic and protected mammals and birds. However, the data on the species are still lacking while the wildlife is threatened by forest conversion and hunting activities. The objectives included identifying mammals and birds species in the Perhutani area in Poncokusumo, describing the local people and visitor's perception of the idea of developing wildlife-watching ecotourism and developing a strategy for mammals and birds conservation through wildlife-watching ecotourism based on the local community. A field survey was done through direct observation and species recognition through morphological characteristics. Interviews were conducted in community lives in Poncokusumo village. The results showed that the Perhutani forest in Poncokusumo has 13 species of mammals and 54 species of birds and is included in the category with very good quality fauna diversity. Local people and visitors' perceptions of mammals and birds vary, but most respondents support developing wildlife-watching ecotourism. From the SWOT analysis, crucial optional strategy are includes increasing opportunities and strengths factors to minimize weaknesses. Some weakness of tourism development was found related to the threats and weaknesses, including hunting rate, habitat degradation and local community knowledge and awareness to support conservation program. This suggested that involving the local community in the tourism industry was crucial. Mammals and bird conservation through wildlife watching ecotourism based on the community in the Perhutani area of Poncokusumo is possible to be applied.

The Correlation of Avifauna Diversity and Its Habitat: An Observation Study at Mount Kawi Slope Waterfall, East Java: Correlation of Avifauna Diversity and Its Habitat Lutfita Fitriana; Nia Kurniawan; Amin Setyo Leksono
Journal of Tropical Life Science Vol. 14 No. 1 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.01.11

Avifauna inhabiting mountain forest ecosystems on Java Island face severe threats from anthropogenic disturbances. Despite this, the diversity of avifauna in specific areas, such as the Hutan Lindung Pegunungan Putri Tidur (HLPPT) on the slopes of Mount Kawi, remains poorly monitored. This study focuses on assessing avifauna diversity and communities in the tourist area of Mount Kawi slope waterfalls, situated on both the southeast side in Malang Regency and the north side in Batu City. The research, conducted from January to March 2022, examined eight waterfall locations (Baung, Glotak, Luksongo, Parangtejo, Manten, Tengah, Rondo, and Sumberpitu) using the roaming method with Visual Encounter Survey (VES) and Audiovisual Encounter Survey (AES) techniques. Data analysis included considerations of conservation status, local distribution, feed specialists, diversity indices (Taxa Richness, Shannon-Wiener Diversity Index (H’), Simpson Index (D), Evenness Index (E)), and Important Value Index (IVI) as an assessment of avifaunal diversity. Researchers employed Microsoft Excel and Principal Component Analysis (PCA) to determine preferences for each character diversity index and abiotic factors in each location. Across the site, 84 species from 33 families were identified. Notably, seven species were classified as at risk (4 near-threatened, two vulnerable, and one endangered), and nine avifauna were protected. The correlation of avifauna diversity to biotic and abiotic factors was positive. These results provide essential data for further conservation management, emphasizing the protection of the forest area, tourists, waterfalls, and slopes of Mount Kawi. Additionally, studying spatial and temporal distribution is crucial for future avifauna species re-inventory efforts.

PEMBINAAN SEKOLAH BERBUDAYA LINGKUNGAN UNTUK MENDUKUNG PROGRAM ADIWIYATA DI WILAYAH BALI BARAT Amin Setyo Leksono; Bagyo Yanuwiadi; Zulfaidah Penata Gama; Nia Kurniawan; Muhammad Imam; Elan Herlina
Prosiding Seminar Nasional Pengabdian Kepada Masyarakat Vol. 4 (2023): PROSIDING SEMINAR NASIONAL PENGABDIAN KEPADA MASYARAKAT - SNPPM2023
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Negeri Jakarta

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Abstract Community service activities have been carried out in the West Bali Region. Several schools in the western part of Bali, including Buleleng and Jembrana Regencies, still have not received an Adiwiyata school award. Community service activities were carried out offline with the target group being biology teachers and students from Buleleng and Jembrana Regencies. This activity aims to a) Increase the understanding of teachers and students regarding environmental culture and the independent curriculum to support Adiwiyata schools; b) Increase teacher awareness for the implementation of an independent curriculum to support environmental culture. Participants in the activity consisted of teachers and students. The method of implementing the activities is carried out by surveiing and inventorying problems, interviews, lectures and discussions as well as simulations. Participants in the activity totaled 70 people divided into several topics. Of the 70, 20 of them studied the topic of Adiwiyata schools. The average age of the respondents is 41-50 years, with an undergraduate education level. The level of understanding from the majority knowing little (71%) increased to very knowing (57%). The satisfaction level reached more than 80%, and all participants were willing to follow up on the understanding that had been obtained to develop environmentally cultured schools in the West Bali region. Abstrak Kegiatan pengabdian masyarakat telah dilaksanakan di Wilayah Bali Barat. Bebeapa sekolah di wilayah Bali bagian barat termasuk Kabupaten Buleleng dan Jembrana, masih banyak yang belum mendapat penghargaan sekolah adiwiyata. Kegiatan pengabdian pada masyarakat yang dilaksanakan secara luring dengan target kelompok sasarannya adalah guru bidang biologi dan siswa dari Kabupaten Buleleng dan Jembrana. Kegiatan ini bertujuan untuk a) Meningkatkan pemahaman guru dan siswa mengenai mengenai budaya lingkungan dan kurikulum merdeka untuk mendukung sekolah adiwiyata; b) Meningkatkan kesadaran guru untuk penerapan kurikulum merdeka untuk mendukung budaya lingkungan. Peserta kegiatan terdiri dari guru dan siswa. Adapun metode pelaksanaan kegiatan dilakukan dengan survei dan inventarisasi masalah, wawancara, ceramah dan diskusi serta simulasi. Peserta kegiatan berjumlah 70 orang yang terbagi dalam beberapa topik. Dari 70, 20 diantaranya mendalami topik tentang sekolah adiwiyata. Usia responden rata-rata 41-50 tahun, dengan tingkat pendidikan sarjana. Tingkat pemahaman dari mayoritas sedikit tahu (71%) meningkat menjadi sangat mengetahui (57%). Tingkat kepuasan mencapai lebih dari 80%, dan seluruh perserta bersedia untuk menindaklanjuti pemahaman yang telah diperoleh untuk mengembangkan sekolah berbudaya lingkungan di wilayah Bali Barat.

The Correlation of Avifauna Diversity and Its Habitat: An Observation Study at Mount Kawi Slope Waterfall, East Java: Correlation of Avifauna Diversity and Its Habitat Lutfita Fitriana; Nia Kurniawan; Amin Setyo Leksono
Journal of Tropical Life Science Vol. 14 No. 1 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.01.11

Avifauna inhabiting mountain forest ecosystems on Java Island face severe threats from anthropogenic disturbances. Despite this, the diversity of avifauna in specific areas, such as the Hutan Lindung Pegunungan Putri Tidur (HLPPT) on the slopes of Mount Kawi, remains poorly monitored. This study focuses on assessing avifauna diversity and communities in the tourist area of Mount Kawi slope waterfalls, situated on both the southeast side in Malang Regency and the north side in Batu City. The research, conducted from January to March 2022, examined eight waterfall locations (Baung, Glotak, Luksongo, Parangtejo, Manten, Tengah, Rondo, and Sumberpitu) using the roaming method with Visual Encounter Survey (VES) and Audiovisual Encounter Survey (AES) techniques. Data analysis included considerations of conservation status, local distribution, feed specialists, diversity indices (Taxa Richness, Shannon-Wiener Diversity Index (H’), Simpson Index (D), Evenness Index (E)), and Important Value Index (IVI) as an assessment of avifaunal diversity. Researchers employed Microsoft Excel and Principal Component Analysis (PCA) to determine preferences for each character diversity index and abiotic factors in each location. Across the site, 84 species from 33 families were identified. Notably, seven species were classified as at risk (4 near-threatened, two vulnerable, and one endangered), and nine avifauna were protected. The correlation of avifauna diversity to biotic and abiotic factors was positive. These results provide essential data for further conservation management, emphasizing the protection of the forest area, tourists, waterfalls, and slopes of Mount Kawi. Additionally, studying spatial and temporal distribution is crucial for future avifauna species re-inventory efforts.

Improvement of Home Garden Diversity and Structure by SRFG Program to Support Food Security in Pacitan Regency, Indonesia: SRFG Program to Support Food Security in Pacitan Regency, Indonesia Wijayanti, Titik; Endang Arisoesilaningsih; Yayuk Yuliati; Amin Setyo Leksono
Journal of Tropical Life Science Vol. 15 No. 1 (2025)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/

The research aimed to analyze the contribution of diversity and vegetation structure of the Sustainable Reserve Food Garden (SRFG) Program in Pacitan Regency to support food security. The sampling was carried out using a purposive random sampling on 315 respondents, who were active members of the SRFG Program. Information on the condition of the SRFG home garden was obtained through interviews and questionnaires administered directly to each respondent. The SRFG home gardens were clustered into eight based on vegetation density using multivariate clustering K-Means. Spatial variations in diversity were analyzed using descriptive statistics, density of each vegetation, Shannon-Wiener index diversity, and polynomial model regression analysis using Software PAST 4.13. The research results show that clusters 1-3 had the highest density of trees (302 individuals/ha), of shrubs (11 individuals/ m2), and of herbs (46 individuals/100 m2), with a medium level of diversity (H’ trees 2.09; H’ shrubs 1.91; H’ herbs 1.88). Meanwhile, cluster 2 excelled in herbs density, with the same level of diversity. A low level of diversity (H’ 0.8) was only found in cluster 8 in that of trees. Additionally, the questionnaire results show that the impacts of food availability, food access, food utilization and nutritional health on cluster 1-3 were better than those on cluster 4-8. This is shown on a Likert’s Scale (1-4), where the means of cluster 1-3 were 3.12 in food availability, 3.74 in food access, 3.35 in food utilization and 3.65 in nutritional health. Meanwhile, cluster 4-8 indicated food availability (3.03), food access (3.69), food utilization (3.22) and nutritional health (3.52). The results implies that improving home garden diversity and structure by the SRFG program in Pacitan Regency supports food security.

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