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Journal articles on the topic 'Shannon-Wiener Index (H')'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Kares, Yohaneta, Deidy Y. Katili, and Marnix L. Langoy. "Keanekaragaman Amphibi Di Areal Persawahan Kota Tondano Kabupaten Minahasa Provinsi Sulawesi Utara." Jurnal MIPA 8, no. 3 (2019): 135. http://dx.doi.org/10.35799/jmuo.8.3.2019.26158.

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Persawahan merupakan habitat yang baik bagi kehidupan amphibi. Amphibi memiliki fungsi ekologis sebagai penyeimbang ekosistem dan sebagai bioindikator lingkungan. Penilitian ini bertujuan untuk menganalisis keanekaragaman amphibi di areal persawahan Boleuvard Kota Tondano berdasarkan nilai indeks Shannon-Wiener. Penelitian ini menggunakan metode Line Transect yang dilaksanakan pada bulan Januari-Desember 2018. Nilai indeks keanekaragaman Shannon-Wiener pada transek satu H’ 0,782, transek dua H’1,208 dan transek tiga H’ 1,139. Berdasarkanhasilpenelitianterdapat lima spesies yang ditemukanya itu

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Sumual, Mercy M., Saroyo, and Marnix Langoy. "Biodiversitas Burung di Areal persawahan Desa Lelema Kecamatan Tumpaan Kabupaten Minahasa Selatan." Jurnal MIPA 6, no. 2 (2017): 59. http://dx.doi.org/10.35799/jm.6.2.2017.17760.

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Biodiversitas spesies burung dipengaruhi oleh keanekaragaman tipe habitat, struktur vegetasi dan ketersediaan pakan pada habitat merupakan faktor utama yang mempengaruhi keanekaragaman spesies.Penelitian ini bertujuan untuk Mendeskripsikan spesies-spesies burung yang ditemukan di areal persawahan dan menentukan tingkat biodiversitas burung di areal persawahan Desa Lelema. Penelitian ini dilaksanakan di areal persawahan Desa Lelema, waktu penelitian ialah bulan Desember 2016 sampai Maret 2017. Teknik pengambilan data menggunakan metode Purposive sampling, metode yang dipakai untuk mendapatkan d

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Dagaonkar, Amita, and M. M. Prakash. "Diversity indices of phytoplankton at Munj sagar talab (Dhar, Madhya pradesh, India)." Environment Conservation Journal 12, no. 3 (2011): 29–32. http://dx.doi.org/10.36953/ecj.2011.120306.

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Phytoplankton is the significant formal natural occupier of all water bodies. They play an important role in the biosynthesis of organic material. Being an index of trophic status phytoplankton reflects the overall environmental condition of the system and its potentiality. Present investigation was carried out for a period of twenty four month to study the diversity indices. Simpson’s Index of Dominance ranged from 0.0441 to 0.0952. Shannon-Wiener Diversity (H) index ranged from 2.6298 to 3.2112.273. Evenness Index ranged from 0.5593 to 0.9808 during the study period. Keywords: Diversity inde

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Tuapetel, Friesland, Delly DP Matrutty, and Welem Waileruny. "Diversity of Demersal Fish Resources in Ambon Island Waters." Jurnal Iktiologi Indonesia 18, no. 3 (2019): 223. http://dx.doi.org/10.32491/jii.v18i3.315.

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The waters surrounding Ambon Island is a potential fishing gound for demersal fish resources, yet information regarding species diversity is still slightly understood. This research aimed to analyze the diversity of species and size of demersal fish around Ambon Island oceans. Data was collected based on experimental fishing using fish trap at two locations, in northern and southern waters of Ambon Island. The data were collected by experimental capture using fishing gear at two locations, namely northern waters (March-April 2015) and south of Ambon Island (July-October 2016). Methods of demer

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Gu, Xing, Kangning Xiong, Chenxu Wu, and Ding Luo. "Study on Soil Moisture Characteristics in Southern China Karst Plant Community Structure Types." Forests 14, no. 2 (2023): 384. http://dx.doi.org/10.3390/f14020384.

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An understanding of soil moisture variation patterns under different plant community structures is crucial for the restoration of vegetation in southern China karst regions. Therefore, four plant community structure types: arbor + herb (AH), shrub + herb (SH), arbor + shrub + herb (ASH), and herb (H), were selected as the research objects. A soil moisture sensor was used to monitor the soil moisture content in the 0–70 cm soil layer, to analyze the variation characteristics of soil moisture content and to explore the differences under different plant community structure types. The results indi

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Gunarno, Gunarno. "Perbandingan Indeks Keanekaragaman Serangga Di Wilayah Ekosistem Hutan Penyangga Taman Nasional Gunung Leuser Bukit Lawang." Jurnal Analisa Pemikiran Insaan Cendikia 4, no. 2 (2021): 72–84. http://dx.doi.org/10.54583/apic.vol4.no2.71.

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This study aims to determine the diversity index and the comparison of insect diversity index in Gunung Leuser Bukit Lawang National Park in the Buffer ecosystem area. The research method uses a quantitative descriptive approach. The population in this study were all animals classified as insects (Insecta). The samples used were insects in the buffer forest area with 3 standpoints (lines). The data analysis technique uses the Shannon–Wiener diversity index. The results showed that the insect with the highest significance index (INP) from the three lines (without stands, rubber stands, and coco

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Fikriyya, Nabela, Adinda Kurnia Putri, and Marina Silalahi. "Riparian Vegetation Structure of the Jengok River, Kutaliman, Kedungabanteng District, Banyumas Regency." MAIYAH 2, no. 2 (2023): 129. http://dx.doi.org/10.20884/1.maiyah.2023.2.2.8863.

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Jengok River has a high value for the Kutaliman community. The community utilizes the ecosystem services of the Jengok River and is inseparable from the presence of riparian vegetation, which controls water quality. This study aimed to determine riparian vegetation structure on the Jengok River, Kutaliman, Kedungbanteng district, and Banyumas Regency. The research was conducted in October-November 2022 in the Jengok riparian zone using a quadrat transect with sizes 20x20 m2 for trees dan 2x2 m2 for understoreys. Data were analyzed using the Shannon-Wiener Diversity Index (H'), the Modified Hil

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Semiun, Chatarina Gradict, and Gaudensius U. U. Boli Duhan. "Diversity Insects of Spring in Mutis Timau Nature Reserve, TTS District, NTT Province." Jurnal Biologi Tropis 21, no. 3 (2021): 771–77. http://dx.doi.org/10.29303/jbt.v21i3.2942.

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Insect diversity is believed to be used as a bio-indicator of spring quality, this study aimed at determining the spring insect diversity around the Mutis Timau Nature Reserve. The study was conducted from June to August 2019. Insects were caught by using the yellow pan trap and hand sorting. The diversity of spring insects was determined based on the Shannon-Wiener diversity index (H'), species richness index (R1), species dominance index (D), and evenness index (E). The results showed that 16 species belong to 11 families, and five orders of insects. The families included Gryllidae, Gryllota

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Yusuf, Muhammad, Ferdy Saputra, and Bambang Imawan. "Odonata Ordo Biodiversity Index at The Lake I Nyoman Sukadana PT Kilang Pertamina Internasional Refinery Unit VII Kasim." ENVIBILITY: Journal of Environmental and Sustainability Studies 2, no. 1 (2024): 34–43. https://doi.org/10.55381/envibility.v2i1.346.

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I Nyoman Sukadana lake was located on buffer zone area at PT Kilang Pertamina Internasional Refinery Unit VII Kasim. This area was plotted as conservation area for any kind of flora, fauna, and company’s springs. I Nyoman Sukadana become a habitat for several kinds of bird and insect. Dragonfly which has dominant life cycle at the waters become one of several insects that could be found on this area. This research calculates biodiversity index of dragonfly at I Nyoman Sukadana Lake’s area. It calculates biodiversity index (H’), evenness (E), and richness (R). Data retrieval conducted by line t

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Karuh, Reinaldo E., Ratna Siahaan, and Marina F. O. Singkoh. "Keanekaragaman Makrozoobentos Sungai Lowatag Minahasa Tenggara Sulawesi Utara." Jurnal MIPA 8, no. 3 (2019): 143. http://dx.doi.org/10.35799/jmuo.8.3.2019.26162.

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Sungai memiliki peranan penting dalam kehidupan manusia dan mahluk hidup lainnya. Makrozoobentos menempati habitat di dasar sungai. Keanekaragaman makrozoobentos berperan penting pada ekosistem sungai. Penelitian ini bertujuan untuk menganalisis keanekaragaman makrozoobentos Sungai Lowatag berdasarkan Indeks Keanekaragaman Shannon-Wiener (H’). Penelitian ini menggunakan metode purposive random sampling di sepanjang Sungai Lowatag. Stasiun penelitian sejumlah tiga stasiun yaitu hulu, tengah dan hilir dengan ulangan di tiap stasiun berjumlah tiga kali ulangan. Makrozoobentos yang ditemukan di Su

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Harijayanti, Devita, Amanatun Nisa, Firgia Partinisah, et al. "Diversity of Ferns (Pteridophyta) in the Bukit Pinteir Forest Central Bangka." Jurnal Biologi Tropis 25, no. 2 (2025): 2169–77. https://doi.org/10.29303/jbt.v25i2.9044.

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The aim of this study was to identify and analyze the diversity of ferns (Pteridophyta) in the secondary forest of Bukit Pinteir, Central Bangka. We collected the primary data through field observations conducted using the purposive sampling method, along with the measurement of abiotic factors at two stations with different altitudes (96 and 238 mdpl). The data were analyzed with important value index and Shannon-Wiener species diversity index (H’). Twelve fern species from 10 families were identified, namely Dicranopteris linearis, Davallia denticulata, Nephrolepis cordifolia, Nephrolepis bi

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Ziaja, Maria. "The species diversity of cereal and root communities in the municipalities located in the strug river valley in Podkarpackie Voivodeship." Acta Agrobotanica 66, no. 3 (2013): 89–94. http://dx.doi.org/10.5586/aa.2013.042.

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The research on segetal flora and agricultural ecosystems has gained special importance in recent years, since they are an important element in biodiversity conservation. An evaluation of the status of the segetal flora was made on the basis of a study conducted in the period 1998–2002 in crop fields of four municipalities located in the Strug River valley in Podkarpackie Voivodeship. This research was carried out in root and cereal crops. Total species richness and the average number of species per relevé were determined in this study. In determining species diversity of the communities, the

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Novriyanti, N., I. Ihsan, B. Irawan, and C. Wulan. "Fragmented urban areas: Can plants encourage birds in Jambi City urban space?" IOP Conference Series: Earth and Environmental Science 918, no. 1 (2021): 012028. http://dx.doi.org/10.1088/1755-1315/918/1/012028.

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Abstract This study aims to estimate the extent to which vegetation can encourage the presence of birds in the urban city area. Forest area, urban plantation, grove area, and residential area are The Muhammad Sabki Urban Forest location for bird and plant observed in some circular plots (r=25 m) in the morning and afternoon. Bird directly and identified using a field guide and marked plant species immediately identified using the Plantamor website. The data were analyzed using the Shannon-Wiener Index (H’), The Margalef Index (Dmg), and some using Correlative and regression analysis with IBM S

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Vanshika, Thakor Ganapat Bavaliya* Bharat Maitreya. "Analysis of Phytodiversity and Phytosociology of Wetlands in Chandkheda, Ahmedabad, Gujrat." International Journal of Scientific Research and Technology 2, no. 4 (2025): 27–37. https://doi.org/10.5281/zenodo.15133196.

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Phytosociological analysis carried out for two selected wetlands of Chandkheda located at 23°07’01” N latitude and 72°34’23”E longitude namely Vadatalav wetland and Visatmata wetland in Ahmedabad. Physiochemical analysis of water and soil determines that geomorphological condition of both wetlands is adequate. This study documented a total of 101 plant species from wetlands of Chandkheda, among which 91 plant species belonging to 77 genera and 34 families documented from the Vada talav wetland; and 50 plant species belonging to 41 genera and 24 families were rec

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15

Botanri, Samin, Dede Setiadi, Edi Guhardja, Ibnul Qayim, and Lilik B. Prasetyo. "Sago palm biodiversity in Seram island Maluku province Indonesia." Jurnal Agro 5, no. 2 (2018): 86–94. http://dx.doi.org/10.15575/2431.

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The number of sago palm species in Maluku province becomes the current issue of biodiversity. The research aimed to clarify the species of sago palm in the Seram island, Maluku province. The research was conducted from March to November 2009 in three sample regions i.e. Luhu of Seram Bagian Barat (SBB) district, Sawai of Maluku Tengah (MT) district, and Werinama of Seram Bagian Timur (SBT) district. Genetic analysis was done at the laboratory of plant biology Inter Center University (ICU) Bogor Agricultural University. Variety of palm sagu was analyzed using index of similarity analysis for gr

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Widiyawati, Ai, Hadi Susilo, Mu'jijah Mu'jijah, Suyamto Suyamto, and Nurullah Asep Abdilah. "Weed Community Structure in Patia Village Rice Fields Patia Sub-District, Pandeglang Regency." Biology, Medicine, & Natural Product Chemistry 12, no. 1 (2023): 423–30. http://dx.doi.org/10.14421/biomedich.2023.121.423-430.

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Rice is a very important type of food crop because it is a staple food source. Crop losses at the farmer level due to competition with weeds reach 10-1.5%. This study aims to determine the structure of rice weed communities in rice fields in Patia Village, Patia District, and Pandeglang Regency. The research method uses an observation method with the sampling technique used as a random method. The plot used was 2 m x 2 m. Weed sampling was carried out by recording the types of weed types and counting the number of individuals of each species. Measurements of environmental factors such as tempe

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Aminah, S. N., Fatahuddin, and A. Nurhidayat. "Biodiversity of herbivorous insects in rice organic and inorganic ecosystem." IOP Conference Series: Earth and Environmental Science 1230, no. 1 (2023): 012068. http://dx.doi.org/10.1088/1755-1315/1230/1/012068.

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Abstract Since many years, presence and activities of herbivorous insect very crucial in the agricultural ecosystem. Purpose of the research is to study biodiversity of herbivorous insect in the rice organic and inorganic ecosystem. The research was conducted in Salassae village, Bulukumba Regency, South Sulawesi from June to August 2021. The herbivorous insect from organic and inorganic ecosystem was carried out and identified at the Pest Laboratory, Department of Plant Pest and Diseases, Faculty of Agriculture, Hasanuddin University Makassar. The places used in the research divided into orga

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Hasyim, Muhammad Asmuni, Berry Fakhry Hanifa, Luhur Septiadi, et al. "Pteridophytes Diversity and Distribution Along The Elevational Gradient of Mount Penanggungan's Hiking Trail, East Java, Indonesia." Jurnal Biodjati 8, no. 2 (2023): 285–94. http://dx.doi.org/10.15575/biodjati.v8i2.24938.

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Pteridophytes (ferns) are a fundamental element of tropical rainforests, which provide excellent microhabitats for their development. In addition, the sensitivity of pteridophytes to shifts in microclimate and anthropogenic disturbances makes them excellent environmental bioindicators. The purpose of this study was to determine the diversity and distribution of pteridophytes along the elevational gradient of two well-known hiking trails of Mount Penanggungan, East Java, Indonesia. Using a 10x10 m2 plot and transect line, we examined the composition, species diversity using Shannon-Wiener diver

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Mubarok, Husni, Alfina Eka Dwi Candra, Bayu Sandika, Wiwin Maisyaroh, Ellena Yusti, and Agmal Qodri. "Diversity of Butterflies in Ledokombo Hillocks Jember, East Java, Indonesia." Journal of Tropical Biodiversity and Biotechnology 8, no. 1 (2023): 77655. http://dx.doi.org/10.22146/jtbb.77655.

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Ledokombo hillocks are small hills located in Jember, East Java that have natural resources and face habitat alteration such as plantation and mining. However, a study of the diversity of butterflies has not been carried out in this area. We analysed the diversity of butterflies using the Shannon-Wiener diversity index (H’) and Pielou evenness index (E). We identified 514 individuals from 34 species and demonstrated a moderate diversity of butterflies (H'= 1.907) in this area. Our study results could be used for sustainable ecological management of plantations in Ledokombo Hillocks, Jember, Ea

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Susanto, Muhammad Azmi Dwi, Muhammad Muhibbuddin Abdillah, and Zakki Mubarak. "KEANEKARAGAMAN ODONATA DI WADUK SELOREJO KABUPATEN MALANG DAN SUMBER CLANGAP KABUPATEN KEDIRI." Jurnal Biosilampari : Jurnal Biologi 2, no. 2 (2020): 36–43. http://dx.doi.org/10.31540/biosilampari.v2i2.892.

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The Selorejo Reservoir administratively is located in Malang district while Sumber Clangap is located in Kediri district. Both of these locations have different environmental conditions both abiotic and biotic components. Selorejo Reservoir has fewer tree canopies and the area dominated with herbs from Poaceae. Sumber Clangap has heterogeneous vegetation from trees, bush, and herbs. Odonata diversity at Waduk Selorejo is never been studied before while Odonata diversity data at Sumber Clangap needed an update. This study aims to determine the diversity of Odonata in Sumber Clangap and Selorejo

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Abdillah, Muhammad Muhibbuddin, Tatag Bagus Putra Prakarsa, and Esti Tyastirin. "Odonata Diversity at Sumber Clangap and Sumber Mangli Puncu Village Sub District of Puncu District of Kediri." Jurnal Biodjati 4, no. 2 (2019): 236–43. http://dx.doi.org/10.15575/biodjati.v4i2.4823.

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Sumber Clangap and Sumber Mangli are geographically located at the Mount Kelud steeps. Administratively located at Puncu Village, Puncu Sub-district and District of Kediri. They provided hab-itat for the flora than fauna especially Odonata that never been stud-ied before. We aimed to study Odonata diversity at Sumber Clangap and Sumber Mangli area. The method used in this study was natural snapshot experiment that conducted by Odonata monitoring. Micro-climate parameter including air temperature and humidity were not-ed. Odonata activity and behavior noted for analysis. Collected data were ana

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Gawęda, Dorota, and Piotr Andrzej Kopcewicz. "Weed infestation of soybean depending on the cultivar and row spacing under organic and conventional cultivation conditions." Agronomy Science 78, no. 1 (2023): 41–51. http://dx.doi.org/10.24326/as.2023.5005.

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An experiment in growing soybean was conducted at the Czesławice Experimental Farm, belonging to the University of Life Sciences in Lublin, over the period 2018–2020. Three experimental factors were included in this study: cultivation method (conventional and organic), soybean cultivar (Aldana and Merlin), and row spacing (22.5 cm and 35 cm). The species composition, number, and air-dry weight of weeds were evaluated. The Shannon-Wiener diversity index (H’) and the Simpson dominance index (SI) were also calculated for the weed community in the soybean crop. Compared to conventional farming, or

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Olatunji, K. E. "Plankton Diversity and Water Quality of River Ose, Ondo State, Southwest Nigeria." Asian Journal of Fisheries and Aquatic Research 27, no. 7 (2025): 84–94. https://doi.org/10.9734/ajfar/2025/v27i7953.

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This study was conducted to investigate the plankton diversity and physico-chemical characteristics of River Ose in providing information that can be used for proper management and conservation of the water body. Plankton samples and water quality parameter were observed for 12 months (February, 2022 to January, 2023). Plankton abundance was estimated using Shannon-wiener diversity index (H). Physico-chemical parameters which include: pH, Temperature, Conductivity, Dissolved Oxygen, Salinity and Total Dissolved Solid were determined insitu using a multi-parameter probe meter. The species compo

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Siddiq, Arif Mohammad, Retno Wimbaningrum, Hari Sulistiyowati, Rendy Setiawan, Silvia Dwi Febrianti, and Firman Syauqi Nur Sabila. "The Diversity of Birds in Mangrove Forest at Biosite Pangpang Bay, Ijen Geopark." Life Science and Biotechnology 1, no. 2 (2023): 52. http://dx.doi.org/10.19184/lsb.v1i2.44165.

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The Biosite Pangpang Bay Ijen Geopark (BPBIG) has a high potential biodiversity value outside the conservation area, particularly in the mangrove forest. Namun informasi keragaman ini masih belum sepenuhnya lengkap. Sehingga penelitian ini bertujuan untuk menentukan keragaman jenis burung di hutan mangrove BPBIG. The research was conducted on October 2023 using the point count method at six observation points in the mangrove forest. Data analysis was carried out in two approaches, i.e., species composition and species diversity index using Shannon Wiener index (H’). We recorded 39 bird species

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Mohd, Nasir Nursyereen, Nasir Dzulhelmi Muhammad, and Rosli Ramli. "Diversity of bats in three selected forest types in Peninsular Malaysia." TURKISH JOURNAL OF ZOOLOGY 45, no. 2 (2021): 142–55. https://doi.org/10.5281/zenodo.13439757.

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(Uploaded by Plazi for the Bat Literature Project) Bats, occupying a variety of habitats, play important roles in the tropical forest. Through this study, comparisons on bat species richness and evenness in primary forest, secondary forest, and urban forest were made. Sampling was conducted between 18:30 PM and 06:30 AM using 10 mist-nets and four harp traps for three consecutive nights at the primary and secondary forest of Ulu Gombak Forest Reserve and urban forest in the Universiti Malaya Botanical Garden. This study progressed from February 2012 until April 2014. A total number of 1226 ind

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Mohd, Nasir Nursyereen, Nasir Dzulhelmi Muhammad, and Rosli Ramli. "Diversity of bats in three selected forest types in Peninsular Malaysia." TURKISH JOURNAL OF ZOOLOGY 45, no. 2 (2021): 142–55. https://doi.org/10.5281/zenodo.13439757.

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(Uploaded by Plazi for the Bat Literature Project) Bats, occupying a variety of habitats, play important roles in the tropical forest. Through this study, comparisons on bat species richness and evenness in primary forest, secondary forest, and urban forest were made. Sampling was conducted between 18:30 PM and 06:30 AM using 10 mist-nets and four harp traps for three consecutive nights at the primary and secondary forest of Ulu Gombak Forest Reserve and urban forest in the Universiti Malaya Botanical Garden. This study progressed from February 2012 until April 2014. A total number of 1226 ind

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Mohd, Nasir Nursyereen, Nasir Dzulhelmi Muhammad, and Rosli Ramli. "Diversity of bats in three selected forest types in Peninsular Malaysia." TURKISH JOURNAL OF ZOOLOGY 45, no. 2 (2021): 142–55. https://doi.org/10.5281/zenodo.13439757.

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(Uploaded by Plazi for the Bat Literature Project) Bats, occupying a variety of habitats, play important roles in the tropical forest. Through this study, comparisons on bat species richness and evenness in primary forest, secondary forest, and urban forest were made. Sampling was conducted between 18:30 PM and 06:30 AM using 10 mist-nets and four harp traps for three consecutive nights at the primary and secondary forest of Ulu Gombak Forest Reserve and urban forest in the Universiti Malaya Botanical Garden. This study progressed from February 2012 until April 2014. A total number of 1226 ind

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Mohd, Nasir Nursyereen, Nasir Dzulhelmi Muhammad, and Rosli Ramli. "Diversity of bats in three selected forest types in Peninsular Malaysia." TURKISH JOURNAL OF ZOOLOGY 45, no. 2 (2021): 142–55. https://doi.org/10.5281/zenodo.13439757.

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(Uploaded by Plazi for the Bat Literature Project) Bats, occupying a variety of habitats, play important roles in the tropical forest. Through this study, comparisons on bat species richness and evenness in primary forest, secondary forest, and urban forest were made. Sampling was conducted between 18:30 PM and 06:30 AM using 10 mist-nets and four harp traps for three consecutive nights at the primary and secondary forest of Ulu Gombak Forest Reserve and urban forest in the Universiti Malaya Botanical Garden. This study progressed from February 2012 until April 2014. A total number of 1226 ind

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Mohd, Nasir Nursyereen, Nasir Dzulhelmi Muhammad, and Rosli Ramli. "Diversity of bats in three selected forest types in Peninsular Malaysia." TURKISH JOURNAL OF ZOOLOGY 45, no. 2 (2021): 142–55. https://doi.org/10.5281/zenodo.13439757.

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(Uploaded by Plazi for the Bat Literature Project) Bats, occupying a variety of habitats, play important roles in the tropical forest. Through this study, comparisons on bat species richness and evenness in primary forest, secondary forest, and urban forest were made. Sampling was conducted between 18:30 PM and 06:30 AM using 10 mist-nets and four harp traps for three consecutive nights at the primary and secondary forest of Ulu Gombak Forest Reserve and urban forest in the Universiti Malaya Botanical Garden. This study progressed from February 2012 until April 2014. A total number of 1226 ind

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Nangin, Sernando Rizky, Marnix L. Langoy, and Deidy Y. Katili. "Makrozoobentos Sebagai Indikator Biologis dalam Menentukan Kualitas Air Sungai Suhuyon Sulawesi Utara." Jurnal MIPA 4, no. 2 (2015): 165. http://dx.doi.org/10.35799/jm.4.2.2015.9515.

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Makrozoobentos dapat digunakan sebagai parameter biologis dalam menentukan kualitas sungai karena hidupnya relatif diam di dasar sungai. Penelitian ini bertujuan untuk menentukan kualitas air Sungai Suhuyon Sulawesi Utara berdasarkan indeks keanekaragaman makrozoobentos. Penelitian dilakukan pada musim panas yaitu bulan Mei sampai Juni 2015. Lokasi penelitian ditentukan dari bagian hulu, tengah dan hilir sungai dengan 3 ulangan di setiap lokasi. Kualitas air Sungai Suhuyon ditentukan berdasarkan indeks keanekaragaman makrozoobentos Shannon Wiener (H’) menurut kriteria Wilhm (1975). Makrozooben

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Indahwati, Retno, Ign Budi Hendrarto, and Munifatul Izzati. "Perbedaan Kualitas Lahan Apel Sistem Pertanian Intensif dengan Sistem Pertanian Ramah Lingkungan (Studi Kasus Di Kelompok Tani Makmur Abadi Desa Tulungrejo Kecamatan Bumiaji Kota Batu)." Bioma : Berkala Ilmiah Biologi 15, no. 2 (2013): 90. http://dx.doi.org/10.14710/bioma.15.2.90-97.

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The aim of this research to analyze the difference of apple farm quality the influence of intensification of agriculture system with environmentally-friendly of agriculture system. A descriptive field research was conducted in June until August 2012. The soil samples were taken in each location by using disturb sample method. The Arthropods sample were taken every five days for five time by using pitfall trap method with five transek in each location.The research applied a qualitative and quantitative-descriptive. The farm quality were comparison soil quality analyze and compositions of ground

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SETIAWAN, YOGO, RINA RACHMAWATI, and HAGUS TARNO. "Diversity of ambrosia beetles (Coleoptera: Scolytidae) on teak forest in Malang District, East Java, Indonesia." Biodiversitas Journal of Biological Diversity 19, no. 5 (2018): 1791–97. http://dx.doi.org/10.13057/biodiv/d190529.

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Setiawan Y, Rachmawati R, Tarno H. 2018. Diversity of ambrosia beetles (Coleoptera: Scolytidae) on teak forest in Malang District, East Java, Indonesia. Biodiversitas 19: 1791-1797. Ambrosia beetle plays an important role in the temperate forest. Ambrosia beetle lives symbiotically with microorganism such as fungi, bacterium, and yeast that can cause plant wilt and death. In Java, ambrosia beetle has been reported to attack teak plantations in some regions. This research aimed to investigate the diversity of ambrosia beetles in the teak plant on monoculture and polyculture system in Malang Dis

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Yuni Wulandari, Dwi, Niken TM Pratiwi, Fitri Nur Rizqi, Inna Puspa Ayu, and Aliati Iswantari. "Struktur Komunitas Plankton dan Penilaian Kualitas Air Waduk Jatigede, Sumedang, Jawa Barat." Jurnal Biologi Indonesia 19, no. 1 (2023): 35–42. http://dx.doi.org/10.47349/jbi/19012023/205.

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Jatigede Reservoir is a man-made lake from the impounding of Cimanuk River water. The research aims to analyze the water quality of Jatigede Reservoir related to the community structure of plankton. Samples were collected at seven sampling sites in February to April 2021. The Shannon-winner diversity index (H), Evenness index (E) and Simpson dominance index (C) were used to determine stability status. The pollution index was used to calculate the pollution in the waters. The research found that there were 33 species belonging to five groups, including Chlorophyceae, Euglenophyceae, Cyanophycea

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Czarnecki, Zbigniew, Teresa Grażyna Wyłupek, and Wanda Harkot. "Assessment of the floristic composition of sward grazed by various animal species." Acta Agrobotanica 68, no. 1 (2015): 9–16. http://dx.doi.org/10.5586/aa.2015.008.

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The study objective was to assess the floristic composition of pastures for wild animals (fallow deer, Manchurian deer and mouflons) at Przytoczno, pastures for horses at Białka, and cow pastures belonging to the Land Community in Tarnogóra. We analyzed the floristic composition of the pastures under study in the growing seasons of 2011 and 2012, carried out 32 phytosociological relevés in the wild animal pastures, 32 in the horse pastures, and 38 in the cow pastures, using the Braun-Blanquet method. We determined the species diversity of the pastures based on the percentage share of species f

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Shavira, Risma Ayu, H. Husamah, Diani Fatmawati, Ahmi Fauzi, and Fuad Jaya Miharja. "Structure and Composition of Vegetation in Sesaot Protected Forest Nature Tourism in West Lombok-West Nusa Tenggara." Indonesian Journal of Biotechnology and Biodiversity 4, no. 2 (2020): 89–105. http://dx.doi.org/10.47007/ijobb.v4i2.67.

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The research was carried out in Sesaot Protected Forest Nature Tourism which focused on two locations, namely in front of the Sesaot Resort Office and Wisata Aik Nyet. The purpose of this research is to present data on environmental conditions and the value of the biodiversity index calculation so that this information is important as an evaluation material for forest managers to maintain and even improve the structure and composition of plant species in Sesaot Protection Forest. This research was conducted in three main parts, namely the strengthening of research design and methods, preparati

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Luong, Nguyen Thi, Nguyen Van Quy, and Nguyen Van Hop. "Woody plants diversity and its relationship with carbon stock in the tropical moist evergreen closed forest, Dong Nai Cultural Nature Reserve." Journal of Forestry Science and Technology 8, no. 2 (2023): 128–37. http://dx.doi.org/10.55250/jo.vnuf.8.2.2023.128-137.

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This study was conducted to test the hypothesis of a statistically meaningful existence between woody plant diversity and aboveground carbon stock in the tropical moist evergreen closed forests at Dong Nai Cultural Nature Reserve. The result showed that, in total, 49 plant species of 30 families were recorded. Twenty-one threatened species were listed in Decree 84/2021/ND-CP of the Government, Vietnam Red Data Book (2007), and IUCN Red List (2022). The indicators reflecting the level of diversity were identified: Species richness (S) 15.44±2.69 species; Abundance (A) 51.68±3.42 trees; Margalef

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Di Bitetti, Mario S. "THE DISTRIBUTION OF GROOMING AMONG FEMALE PRIMATES: TESTING HYPOTHESES WITH THE SHANNON-WIENER DIVERSITY INDEX." Behaviour 137, no. 11 (2000): 1517–40. http://dx.doi.org/10.1163/156853900502709.

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AbstractThe Shannon-Wiener diversity index (H) has been used to characterize grooming relationships among adult female primates. To make comparisons among different groups, the value of H has been divided by the maximum value it can reach for a particular group size. This ratio, the grooming diversity ratio (GDR), has been used to test predictions from hypotheses that may explain the distribution of social relationships among adult female primates. Using grooming data from different primate populations and random computer simulations I show that the mean value of H and GDR are positively affec

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Fônseca, Nathan Castro, Alciênia Silva Albuquerque, Maria José de Holanda Leite, and Cristiane Salazar De Lira. "SIMILARIDADE FLORÍSTICA E COLONIZAÇÃO BIOLÓGICA DE PROSOPIS JULIFLORA [(Sw) DC] AO LONGO DO RIO PARAÍBA." Nativa 4, no. 6 (2016): 392–97. http://dx.doi.org/10.31413/nativa.v4i6.3637.

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Objetivou-se avaliar a similaridade florística e o impacto ocasionado pela presença de Prosopis juliflora [(Sw) DC] no estrato arbustivo-arbóreo ao longo da margem do rio Paraíba no Município de Monteiro, PB. Alocou-se seis parcelas de forma sistemática e equidistantes 200m entre si, com dimensões de 30 x 50 m. Foram amostrados todos os indivíduos arbustivos e arbóreos com nível de inclusão adotado de 6 cm a 1,30m de altura (CAP). Para avaliar a diversidade das espécies usou-se o índice de diversidade de Shannon-Wiener (H’), e para aferir o impacto das espécies exóticas utilizou-se o índice de

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Ummi, Faidatu, Catur Retnaningdyah, and Bagyo Yanuwiadi. "Evaluation of Natural Enemy Abundance Based on Riparian Vegetation at Rice Field in Slamet Village, East Java, Indonesia." Biotropika: Journal of Tropical Biology 11, no. 1 (2023): 17–27. http://dx.doi.org/10.21776/ub.biotropika.2023.011.01.03.

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Riparian vegetation habitats in irrigation canals provide various ecosystem regulatory services for human life, one of them was providing natural enemies for agricultural pests. This study aims to analyze the abundance of natural enemies at the paddy field, then to figure out the interaction between the riparian vegetation and natural enemies based on four different locations of tertiary irrigation canals at Slamet Village. Arthropods were observed by visual control and yellow pan trap methods. Whereas, riparian vegetation sampling points were determined by purposive sampling. The measured rip

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Amaludin, Nazahatul Anis, Nur Aina Ab Majid, Nor Nadia Mohd Zulkafli, et al. "Assessment of plant species diversity and abundance using line-transect method at Pantai Sabak, Kelantan." Journal of Tropical Resources and Sustainable Science (JTRSS) 9, no. 2 (2021): 112–16. http://dx.doi.org/10.47253/jtrss.v9i2.789.

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Coastal areas are environmentally sensitive areas filled with various local inhabitants focusing on the tree species ecosystem continuing to develop according to its environment. Pantai Sabak is one of the well-known eroded beaches in Kelantan due to the natural phenomenon, tidal wave erosion. This study aimed to identify the species availability and determine the species abundance, density, frequency, and diversity found in Pantai Sabak, Kelantan. Certain native species and common tree species at the coastline area are still available, such as Nypa fruticans and Ipomoea pes-caprae. Shocking r

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Puspita, Bintan Felia, and Wisanti Wisanti. "Ferns Species Diversity in the Sekar Pudak Sari Waterfall Tourism Area, Wonosalam District, Jombang Regency, East Java, Indonesia." Jurnal Riset Biologi dan Aplikasinya 5, no. 2 (2023): 60–69. http://dx.doi.org/10.26740/jrba.v5n2.p60-69.

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Ferns are significantly dominant in Indonesia. The waterfall area is one of the ferns habitats. This study aims to determine the diversity index of ferns species in the Tourism Area of Sekar Pudak Sari Waterfall Wonosalam District, Jombang Regency, East Java. This research was exploratory, descriptive. Data collection uses a single plot measuring 20x20 m at 500 masl, 700 masl, and 900 masl. Each observation plot has a sub-plot with a size of 2x2 m. Data analysis used the Shannon-Wiener diversity index (H'), the taxonomic diversity index (Δ), and dominance (Δ*). The exploration results found 28

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Semiun, Chatarina Gradict, and Gaudensius U. U. Boli Duhan. "The Spring Insects Diversity in Mutis Timau Nature Reserve." BIO-EDU: Jurnal Pendidikan Biologi 7, no. 1 (2022): 25–33. http://dx.doi.org/10.32938/jbe.v7i1.1295.

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Insect diversity is believed to be used as a bio-indicator of spring quality. This study aimed at determining the spring insect diversity around the Mutis Timau Nature Reserve. The study was conducted from June to August 2019. Insects were caught by using the yellow pan trap and hand sorting. The diversity of spring insects was determined based on the Shannon-Wienner diversity index (H'), species richness index (R1), species dominance index (D), and evenness index (E). The results showed that 16 species belong to 11 families, and 5 orders of insects. The families included Gryllidae, Gryllotalp

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Budiman, Anang Sutra, and Nova Hariani. "Komunitas Serangga Arboreal pada Lahan Sawah Tadah Hujan di Kutai Kartanegara, Kalimantan Timur." BiosciED: Journal of Biological Science and Education 5, no. 1 (2024): 1–8. http://dx.doi.org/10.37304/bed.v5i1.13669.

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Pemahaman terkait komunitas serangga arboreal, terutama perannya sebagai herbivor, predator, dan polinator, sangat diperlukan untuk mengelola lahan sawah tadah hujan secara berkelanjutan. Oleh karena itu, penelitian eksploratif deskriptif ini dilakukan pada lahan sawah tadah hujan di Kutai Kartanegara untuk mengetahui struktur komunitas dan diversitas serangga arboreal yang dikoleksi dengan metode penyapuan menggunakan sweeping net, untuk serangga diurnal, dan light trap, untuk serangga nokturnal. Berdasarkan nilai indeks diversitas Shannon-Wiener (H), indeks dominansi Simpson (D), dan indeks

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Purwati, Nining, Ervina Titi Jayanti, and Miftahul Jannah. "Community Structure of Freshwater Microalgae in Jangkok River, Lombok Indonesia." Jurnal Penelitian Pendidikan IPA 8, no. 4 (2022): 2043–47. http://dx.doi.org/10.29303/jppipa.v8i4.1761.

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The microalgae community structure in an aquatic ecosystem is strongly influenced by environmental factors. One of the rivers in Indonesia, located inhe island of Lombok, West Nusa Tenggara, is the Jangkok River. The Jangkok River is widely used by residents for activities, including industry, cultivation, waste disposal, and others. This study aimed to determine the structure of microalgae community in Jangkok River. This research was carried out with an exploration descriptive method by quantitative and qualitative approaches. Data were analyzed quantitatively by calculating the Shannon-Wien

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Trianto, Manap, Nuraini Nuraini, Sukmawati Sukmawati, and Moh Dahri Kisman. "Keanekaragaman Genus Serangga Air sebagai Bioindikator Kualitas Perairan." Justek : Jurnal Sains dan Teknologi 3, no. 2 (2020): 61. http://dx.doi.org/10.31764/justek.v3i2.3562.

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Abstract: Aquatic insects are groups of insects that most of their life in the water body. Aquatic insects are part of macrozoobenthos. Aquatic insects are very important roles in the ecological system due to various reasons. Insects are bio-indicators of water in water bodies such as rivers. The aims of the study were to determine the diversity and the potential roles of aquatic insects in the Kali Batu Anyar ecosystem. The research method used purposive random sampling method. The sampling of the data was conducted by Surber nets. The samples obtained were identified and analyzed using the S

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Warikar, Evie L., Euniche R. P. F. Ramandey, and Alexandra Waisimon. "Konservasi Kupu-Kupu Penting Sebagai Penyerbuk di Kampung Wisata Isyo Hills Rhepang Muaif Nimbokrang, Kabupaten Jayapura." JURNAL BIOLOGI PAPUA 16, no. 1 (2024): 1–10. http://dx.doi.org/10.31957/jbp.3575.

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Butterflies are an important example of pollinating insects of the Order Lepidoptera. The presence of butterfly pollinating insects in nature is highly dependent or influenced by the availability of flowering plants visited in the ecosystem. The purpose of this study was to determine the diversity and abundance of butterfly pollinator in flowering plants. A direct survey method (visual) with a radius of ± 100-250 m² was done with scan sampling technique. Parameters measured were the abundance and the species richness of butterflies visited flowering plants as well as the species richness of fl

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Kurnia, Nani, and Hamka Lodang. "Inventory and Analysis of Diversity of Insect on Shallot Cultivation in Saruran Hamlet, Enrekang Regency." Jurnal Biologi Tropis 24, no. 2 (2024): 523–29. http://dx.doi.org/10.29303/jbt.v24i2.7013.

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Shallots (Allium ascalonicum L.) are a highly popular plant both as a culinary spice and herbal medicine. Due to their economic benefits, many farmers cultivate them. Saruran Hamlet, located in Anggareja District, Enrekang Regency, is one of the areas where shallots are intensively cultivated. Farmers face a significant problem with high pest infestation rates. To manage this, chemical pest control using insecticides is employed. However, insecticides are toxic and increasingly expensive. To reduce pesticide use, pest control using light traps was implemented through the "electricity to the fi

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Naim, Abu, Rosalina Edy Swandayani, and Titanio Auditya Pribadi. "Study of Arthropod Diversity in the Location of Pine Forests and Orange Groves in the Bedngan Campground Area, Malang Regency." AGARICUS: Advances Agriculture Science & Farming 5, no. 1 (2025): 84–90. https://doi.org/10.32764/agaricus.v5i1.5981.

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The Bedengan campground is a location with natural conditions that are still natural which is dominated by pine forests. Around the forest, there are orange plantations managed by the local community. To determine the comparison of Arthropod diversity in the two locations, the Pitfall trap, Net, and Barrel turgin methods were used with data analysis using Shannon-Wiener and QBS index. Based on the results of the research that has been carried out, it can be seen that there are 11 orders, 29 families and 487 species, while in the orange plantation area there are 7 orders, 10 families and 335 sp

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Hidayah, Hexa, Ilham Noorhakim, Dwi Wibowo, and Rosyid Al Hakim. "Weeds Diversity in Rubber Plant (Hevea Brasiliensis) at Perkebunan Nusantara Company, Ciamis, Indonesia." Indonesian Journal of Agriculture and Environmental Analytics 1, no. 1 (2022): 13–26. http://dx.doi.org/10.55927/ijaea.v1i1.728.

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This research aims to analyze the diversity of weeds species in rubber plants at Perkebunan Nusantara Company, Ciamis, Indonesia. We used the survey method with line transects sampling. Weed diversity in rubber plantations was analyzed using Shannon-Wiener Index (H'), while the evenness of plants was analyzed using the Evenness Index (E'). The research results showed that 38 species from 18 weed families were found. The weed species with the highest number is Ischaemum timorense (IVI = 36.71%) as a dominant species, while the weed species with the lowest number of individuals was Cyrtococcum p

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Patel, Harvi, and Susmita Sahoo. "Ecological Dynamics of Macrophytes in Lentic Water Bodies: A Case Study in Valsad, Gujarat, India." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 07, no. 10 (2023): 1–11. http://dx.doi.org/10.55041/ijsrem26292.

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We examined the occurrence of macrophyte diversity and its distribution in the selected lakes of Valsad district, Gujarat, India. There were two main objectives, first examine the macrophyte species diversity in the selected lakes using the Shannon-Wiener diversity index, and the second one was to investigate the impact of environmental parameters on the macrophyte diversity. The canonical correspondence analysis (CCA) was utilized to better understand the relationship between macrophyte communities and environmental conditions. The results showed that from the 50 macrophyte species recorded,

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