Amin Setyo Leksono
Department of Biology, Faculty of Mathematics and Natural Sciences, University of Brawijaya,

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Potensi Halaman Sekolah sebagai Mikrohabitat, serta Persepsi Masyarakat Sekitar Sekolah tentang Undur-undur (Myrmeleon sp.) sebagai Predator di Kec. Campurdarat, Kab. Tulungagung putri, ardhanys wari; Yanuwiadi, Bagyo; Leksono, Amin Setyo
Biotropika: Journal of Tropical Biology Vol 2, No 2 (2014)
Publisher : Biotropika: Journal of Tropical Biology

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Potensi Halaman Sekolah sebagai Mikrohabitat, serta Persepsi Masyarakat Sekitar Sekolah tentang Undur-undur (Myrmeleon sp.) sebagai Predator di Kec. Campurdarat, Kab. TulungagungArdhanyswariputri, Yanuwiadi, B., Leksono, A.S. Jurusan Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Brawijaya, MalangABSTRAK Penelitian ini bertujuan untuk mengetahui potensi halaman sekolah sebagai mikrohabitat undur-undur (Myrmeleon sp.) dan mengetahui persepsi masyarakat sekolah dan masyarakat di sekitar sekolah tentang undur-undur (Myrmeleon sp.) sebagai pengendali hayati di Kecamatan Campurdarat Kecamatan Tulungagung. Prosentase halaman sekolah yang dapat digunakan sebagai mikrohabitat undur-undur (Myrmeleon sp.) dapat diukur dengan membandingkan luasan tanah kering gembur dan tidak lembab maupun tanah berpasir pada halaman sekolah dengan seluruh luasan halaman sekolah. Kemudian presentase tersebut dideskripsikan berdasarkan skala estimasi. Adapun pengambilan data dilakukan dengan wawancara secara tertutup melalui questioner kepada responden yang merupakan warga sekolah dan masyarakat sekitar sekolah di Kecamatan Campurdarat. Pengolahan data dilakukan dengan analisis statistic skala lickert (lickert scale). Hasil penelitian menunjukkan bahwa rata-rata prosentase halaman sekolah yang berpotensi sebagai mikrohabitat undur-undur (Myrmeleon sp.) sebesar 19,61%, yang berarti bahwa rata-rata sekolah yang berada di Kecamatan Campurdarat mempunyai pontensi yang sangat rendah sebagai mikrohabitat undur-undur (Myrmeleon sp.). Sedangkan persepsi warga sekolah dan masyarakat di sekitar sekolah berada pada kategori yang cukup. Prosentase pengetahuan responden tentang undur-undur sebagai musuh alami sebesar 53,92%, sikap responden tentang undur-undur sebesar 55,09%, keterampilan responden terhadap hal-hal berkenaan dengan undur-undur sebesar 55,09%, dan persepsi respondent yang lain secara pribadi sebesar 46,55%. Kata kunci : Mikrohabitat, Undur-undur (Myrmeleon sp.), potensi, persepsi 
Distribusi Spasial Nyamuk Diurnal Secara Ekologi Di Kabupaten Lamongan Johanudin, Nanang; leksono, amin setyo
Biotropika: Journal of Tropical Biology Vol 1, No 3 (2013)
Publisher : Biotropika: Journal of Tropical Biology

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Abstrak Daerah tropis seperti Indonesia merupakan daerah  yang disukai  nyamuk. Jawa Timur merupakan salah satu wilayah bagian Indonesia yang terdapat pada bagian jawa daerah timur. Akibat penyakit  yang ditularkan oleh nyamuk di Provinsi Jawa Timur masih merupakan masalah kesehatan bagi masyarakat, baik di perkotaan   maupun di pedesaan, seperti:  Demam Berdarah Dengue, Malaria,  Filariasis (kaki gajah), Chikungunya dan Encephalitis. Kabupaten  Lamongan termasuk salah satu kabupaten di Provinsi Jawa Timur yang perna terserang penyakit karena vektor dari nyamuk diantaranya, Demam Berdarah Dengue (DBD). Nyamuk yang aktif dan bergerak pada pagi hari hingga sore hari merupakan nyamuk diurnal, sedangkan nyamuk yang aktif  ketika malam hari merupakan nyamuk nokturnal. Penelitian ini dilakukan dengan penyaringan  jentik nyamuk, pemeliharaan, dan pengamatan ketika dewasa.  Data yang telah diperoleh dianalisis dengan  populasi rata-rata menggunakan Microsoft Excel  2007. Kemudian dilanjutkan dengan analisis statistik   uji t-test dan uji distribusi menggunakan SPSS 16.  Kemudian dilakukan pemetakan komposisi nyamuk dimasing-masing lokasi. Ditmukan tiga jenis nyamuk yang tertangkap. Anopheles, Culex, dan Culex quinquesfaciatus. Rata-rata  populasi nyamuk tertinggi yang didapatkan di lima titik merupakan nyamuk dari genus Anopheles yang terdapat didesa Dagan sebesar 15,3 populasi, dan genus Culex yang terdapat didesa kedungmegari sebesar 11,7 populasi.   Kata kunci: Anopheles, Culex, diurnal, Lamongan, nyamuk.
ATTRACTION OF ARTHROPODS IN REFUGIA BLOCKS (Ageratum conyzoides L., Capsicum frustecens L., and Tagetes erecta L.) WITH THE APPLICATION OF LIQUID ORGANIC FERTILIZER AND BIOPESTICIDE IN APPLE CROPS IN PONCOKUSUMO Muhibah, Tria Irma; Leksono, Amin Setyo
Biotropika: Journal of Tropical Biology Vol 3, No 3 (2015)
Publisher : Biotropika: Journal of Tropical Biology

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The objective of this research was to know the community structure of arthropods and to know visiting patterns of arthropods in refugia blocks. The method used in this research was Visual Encounter in fruiting season and flowering season. The observation was held four times in each season and four times a day. The observation was held on the refugia blocks that were applied a liquid organic fertilizer and biopesticide (POCB) and Control. Measurement of abiotic factors was done including temperature, humidity and light intensity. The result was analyzed using important value (INP) and Shannon-Wienner Index (HI). Overall the total abundance of arthropods was 32 family in flowering season and 33 family in fruiting season. All of the refugia blocks were dominated by family Muscidae in flowering season and dominated by family Apidae in fruiting season. The Diversity of arthropods in flowering season and fruiting season is quite high with the value was ranged from 3 to 4. Arthropods visiting patterns on the refugia block showed an increase in the abundance of arthropods in period 2 that was during 9:00 to 10:30 am.   Key word : Arthropods, Biopesticide, Flowering Season, Fruiting Season, Liquid Organic Fertilizer, Refugia Blocks, Visual Encounter
Distribusi dan Komposisi Nyamuk di Wilayah Mojokerto Leksono, Amin Setyo; Gama, Zulfaidah Penata; islamiyah, madaniatul
Biotropika: Journal of Tropical Biology Vol 1, No 2 (2013)
Publisher : Biotropika: Journal of Tropical Biology

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Nyamuk merupakan salah satu serangga yang memiliki peran sebagai vektor dari agen penyakit. Penyakit  yang ditularkan oleh nyamuk masih merupakan masalah kesehatan bagi masyarakat, salah satunya yaitu Demam Berdarah Dengue (DBD). Jenis-jenis penyakit lain yang disebabkan oleh nyamuk adalah Filariasis (kaki gajah), Chikungunya dan Encephalitis. Mojokerto termasuk salah satu wilayah di Provinsi Jawa Timur yang endemis Demam Berdarah Dengue (DBD) di Indonesia, sehingga perlu  diketahui tentang  beberapa jenis nyamuk yang merupakan vektor dari beberapa penyakit yang melanda wilayah Mojokerto. Penelitian ini bertujuan untuk mengetahui jenis-jenis dan distribusi spasial nyamuk di wilayah Mojokerto. Pengambilan sampel dilakukan di dua lokasi di wilayah Mojokerto yaitu di Kecamatan Prajurit Kulon, Kota Mojokerto dan Kecamatan Dlanggu, Kabupaten Mojokerto. Metode yang digunakan adalah survei larva nyamuk dan ovitrap. Titik koordinat lokasi pengambilan sampel disimpan menggunakan GPS selanjutnya dilakukan identifikasi di Laboratorium Ekologi dan Diversitas Hewan, Universitas Brawijaya. Analisis data dilakukan secara kuantitatif untuk menentukan Kelimpahan, Kelimpahan Relatif, Frekuensi, Frekuensi Relatif dan INP (Indeks Nilai Penting). Pola persebaran  nyamuk dianalisis dengan Indeks Morisita. Hasil dari penelitian ini menunjukkan terdapat lima spesies yaitu Aedes aegypti, Aedes albopictus, Aedes laniger, Culex bitaeniorchynchus dan Culex quinquefasciatus. Spesies Aedes aegypti merupakan spesies yang dominan di Kota Mojokerto dengan Indeks Nilai Penting (INP) sebesar 70.48% diperoleh dari metode survei larva dan 76.88% diperoleh dari metode ovitrap sedangkan spesies Culex quinquefasciatus merupakan spesies yang dominan di Kabupaten Mojokerto sebesar 59.80 % diperoleh dari metode survei larva dan 89.58 % diperoleh dari metode ovitrap. Pola penyebaran nyamuk berdasarkan perhitungan indeks morisita di wilayah Mojokerto adalah seragam.   Kata Kunci : Distribusi, Komposisi, Mojokerto, Nyamuk
Potential Soursop Leaf Extract, Soursop Seeds and Mahogany Seeds for Grayak Caterpillar Control (Spodoptera litura L.) Yanuwiadi, Bagyo; Leksono, Amin Setyo; H., Hiasinta Guruh; Fathoni, M.; Bedjo, Bedjo
Natural B Vol 2, No 1 (2013)
Publisher : Natural B

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (141.486 KB) | DOI: 10.21776/ub.natural-b.2013.002.01.13

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This research objective is to compare the effect of extracts of soursop leave, sousop seed and mahogany seed on stop feeding, mortality and surviving of pupae and imago of army worm (Spodoptera litura L.). Army worm larvae were collected from Kebun Percobaan Muneng Research Field, Probolinggo and transferred to laboratorium for rearing and treatment. Soursop leaves, soursop seeds and mahagony seeds were extracted by aquades extraction method. Bioassays were conducted by using five concentration variation applied on 10 larvae by dipping method with twice replication. Observation of stof feeding was conducted every 2 hours during 24 hours. Whereas, observation on mortality was done every 24 hours during 168 hours. Result showed that the effect of soursop leave extract on the stop feeding and mortality was better than that of soursop and mahogany seed. This effect was started from 33.3% at 16 HAA (hours after application) increased to 46% at 24 HSA. Interestingly, the effect on survivality of pupae and imago was highest on the application of mahagony extract. The failure of pupation was 70%, and that of imago was 76.6%. This indicates that the effect of soursop leave extract is better for sort time application but on the long-term, the effect of mahogany seed is better than the others. 
Soil Arthropod Diversity and Composition Inhabited Various Habitats in Universitas Brawijaya Forest in Malang East Java Indonesia Leksono, Amin Setyo; Putri, Ninda Merisa; Gama, Zulfaidah Penata; Yanuwiyadi, Bagyo; Zairina, Anisa
Journal of Tropical Life Science Vol 9, No 1 (2019)
Publisher : Journal of Tropical Life Science

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A study on soil arthropod abundance, diversity and composition have been done on November 2016 to March 2017 using pitfall traps. The objective of this study is to analyze variations of the soil arthropod abundance, diversity and composition among different habitats in a university forest.  The study was carried out in Universitas Brawijaya Forest (UBF) Malang, East Java (7°49'S, 112°34'E, 1,200 m in altitude), consisted of four locations: an agroforestry (AF), a gallery forest (GF), the pine stands (PS) and a settlement yard (SY). At each site, a total of 10 traps (5 by 2 rows) were placed systematically at 4-m intervals. Glass cups (10 cm in diameter and 7 cm deep) were buried in the ground during 24 hours. There were 2286 individuals of arthropod collected from all sampling locations. Overall the samples collected consist of 41 families of arthropods. The abundance (mean ± SE) of soil arthropod was highest in PS and the lowest in SY. Statistically, variations in abundance among locations were significant (F = 7.39, p < 0.01). The taxa richness of arthropod was highest in GF and the lowest in SY. Statistically, variations in taxa richness among locations were significant (F = 4.26, p < 0.05).  The diversity was the highest in the GF (1.9 ± 0.1) lowest in the SY (0.74 ± 0.1). Statistically, variations in diversity among study sites were significant (F = 26.73, p < 0.001). In general, scavenger dominated the composition of soil arthropods. The highest proportion of scavenger abundance present in SY was 84.9%, while the lowest in the GF was 29.3%. The highest litter transformer composition in GF was 33.9%, and the lowest in SY was 8%. The highest decomposer in PS was 26.9% and the lowest in AF was 12.9%. The highest predator in AF was 20.7% and the lowest in SY was 1%. Compositions of soil arthropod were affected by environmental factors such as soil temperature and light intensity.
Influence of Porang (Amorphophalus muelleri) Cultivation On The Composition of Soil Arthropods In Tropical Agroforestry Areas In East Java, Indonesia Leksono, Amin setyo; Yanuwiadi, Bagyo; Zaenal, Kusuma; Farid, Akbar; Maulana, Fujianor
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 Zayadi, Hasan; Hakim, Luchman; Leksono, Amin Setyo
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.
The Model of Odonate Diversity Relationship with Environmental Factors Based on Path Analysis Feriwibisono, Bambang; Marsoedi, Marsoedi; Leksono, Amin Setyo
El-Hayah : Jurnal Biologi Vol 6, No 1 (2016): EL-HAYAH (VOL 6, NO 1,September 2016)
Publisher : Department of Biology Science and Technology Faculty UIN Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/elha.v6i1.4068

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This study aims to analyze and describe the relationship between altitude, aerial variables (temperature, light intensity, humidity), water qualities (water temperature, pH, BOD, COD, DO, TOM, and water velocity), and vegetation with the diversity of Odonate assemblages. Odonate samplings were conducted at six survey sites based on altitude and vegetation characteristics. Measurement of altitude, aerial variables, water qualities and vegetation characteristics were replicate in the first day and third day. Analysis of correlations of all environmental factors with the odonate diversity was done through structural equation model using Partial Least Squares (PLS), Open source Smart Software and Microsoft Excel. The aerial variables and water qualities affected indirectly on odonate diversity. The aerial variables directly or with interaction to other factor affected the water qualities and vegetation characteristics. The vegetation characteristics directly influenced to odonate diversity. Water flow affected water quality, light intensity affected the aerial, while morning period observation affected the odonate diversity. Predictive relevance (Q2) for a model designed amounted to 99.95%, while the rest of 0.05% are explained by other variables. 
KAJIAN KOMPOSISI SERANGGA POLINATOR TANAMAN APEL (Malus sylvestris Mill) DI DESA PONCOKUSUMO KABUPATEN MALANG Apituley, Frank Leonardo; Leksono, Amin Setyo; Yanuwiadi, Bagyo
El-Hayah : Jurnal Biologi Vol 2, No 2 (2012): EL-Hayah (Vol 2, No 2, Maret 2012)
Publisher : Department of Biology Science and Technology Faculty UIN Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/elha.v2i2.2213

Abstract

Pohon apel merupakan salah satu jenis pohon yang tidak dapat melakukan penyerbukan sendiri. Bunga apel tergantung pada serangga penyerbuk atau serangga polinator. Penelitian ini bertujuan untuk mengetahui komposisi serangga kanopi yang berpotensi sebagai polinator bunga apel dan menganalisis pola kunjungannya. Pengamatan serangga dilakukan secara visual. Pengukuran faktor lingkungan (suhu, kelembaban, dan cahaya). Analisis data struktur komunitas serangga pada saat musim berbunga dan berbuah didapatkan dari nilai penting dan diversitas (Indeks Shannon Wienner).  Pola kunjungan dan komposisi serangga polinator dilakukan dengan membandingkan saat musim berbunga dan musim berbuah. Parameter yang dibandingkan diversitas, kelimpahan dan komposisi. Diversitas dan  dan  kelimpahan dibandingkan dengan uji  anova, sedangkan komposisi dibandingkan dengan IBC (Indeks Bray Curtis). Pola kunjungan harian serangga polinator bunga apel dianalisis dengan membandingkan rata-rata kunjungan pada periode I, II, III, IV, dan V. Serangga polinator yang dikoleksi pada perkebunan apel musim bunga lebih tinggi yakni (363 individu) dari pada musim buah (151 individu). Nilai indeks keanekaragaman serangga polinator pada saat musim berbunga lebih tinggi (2,08) dibandingkan musim buah (1,27). Kelimpahan serangga polinator antara musim bunga dan buah signifikan P 0,001. Kesamaan serangga polinator antara musim bunga dan buah denga indeks Bray Curtis sebesar 0,76 untuk musim bunga (AC, yaitu jam 07.00-08.15 dengan 12.00-13.15) dan 0,74 untuk musim buah (AB, yaitu jam 07.00-08.15 dengan 09.00-10.15). Analisis faktor lingkungan suhu, kelembaban, dan intensitas cahaya terhadap kelimpahan serangga polinator didapatkan korelasi yang positif dengan nilai R-square yakni 43,2%. Â