scholarly journals Epilithic Diatoms Diversity in The Reservoir of Universitas Diponegoro, Semarang

2021 ◽  
Vol 2 (1) ◽  
pp. 65-75
Author(s):  
Jihan Afifah ◽  
Riche Hariyati ◽  
Tri Retnaningsih Soeprobowati
Keyword(s):  
Diversity Index ◽  
Water Storage ◽  
Quality Parameters ◽  
Anthropogenic Activity ◽  
Rock Surface ◽  
Distilled Water ◽  
Dominance Index ◽  
Wiener Diversity Index ◽  
Storage Reservoirs ◽  
Evenness Index

Diatom biodiversity is an increasing concern due to growing human impact, the study was carried out in one of the most important water storage reservoirs of Tembalang Region. The anthropogenic activity influence of diatom diversity in the UNDIP Reservoir.  The reservoir of Universitas Diponegoro (UNDIP) Semarang was an area of 1.24 km2, with the deepest part of 15 meters, and able to accommodate water up to 13500 m3. This study aims to determine the relative abundance, diversity, evenness, dominance of diatoms and is expected to provide information about the condition of the waters in the Diponegoro University Reservoir, Semarang. Littoral benthic diatoms of five locations were sampled. Diatoms slides were prepared from scraping the rock surface with an area of 3x3 cm, dilute in 50 ml distilled water, and identification under the microscope with 1000 magnification. Analysis of the physical characteristics of the waters includes Temperature, pH, DO, TDS, Conductivity, and Turbidity. The diatom composition in UNDIP Reservoir consists of 72 species that belong to 20 genera. The Shannon-Wiener diversity index (H') ranges from 2-3. The dominance index (D) ranges from 0.05-0.17. The Evenness index (E) ranges from 0.54-0.90. Water quality parameters showed a fairly good value in the growth of diatoms. Dominated by periphytic taxa such as Cyclotella meneghiniana (15.72%), Brachysira microcephala (9.93%), and Achnanthidium minutissima (6.84%) which are widely distributed and live at temperatures of 20-30?C and pH >6.

scholarly journals Diversity of ambrosia beetles (Coleoptera: Scolytidae) on teak forest in Malang District, East Java, Indonesia

2018 ◽  
Vol 19 (5) ◽  
pp. 1791-1797
Author(s):  
YOGO SETIAWAN ◽  
RINA RACHMAWATI ◽  
HAGUS TARNO
Keyword(s):  
Temperate Forest ◽  
Diversity Index ◽  
Wiener Index ◽  
Ambrosia Beetle ◽  
Species Evenness ◽  
Ambrosia Beetles ◽  
Dominance Index ◽  
R Program ◽  
Wiener Diversity Index ◽  
Evenness Index

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 District. This research was conducted in the teak forest in Dampit and Sumbermanjing Wetan, Malang District from March to May 2017. Ambrosia beetles were trapped by using baited bottle trap with 95% ethanol. The diversity of ambrosia beetles trapped was analyzed using Vegan package in R program to calculate the Shannon-Wiener diversity index (H), Species Evenness index (E), and Simpson's dominance index (D). The results showed that ambrosia beetles trapped in monoculture and polyculture teak plants system consist of nine species, i.e., Xylosandrus crassiusculus, X. morigerus, X. compactus, Xyleborus perforans, Euwallacea simillis, Xyleborinus andrewesi, Premnobius cavipennis, Coccotrypes distinctus, and Hypothenemus hampei. The Shannon Wiener index of Ambrosia beetles in polyculture (H=1.40) was higher than in monoculture (H=1.30), and both locations were categorized in the medium diversity category. The Species Evenness index of ambrosia beetles in polyculture (E=0.67) and monoculture (E=0.66) were also categorized in medium category. The Simpson’s dominance index in both locations was categorized in the middle dominance species. X. crassiusculus was the dominant species in polyculture and monoculture teak plant system.

scholarly journals DIVERSITY OF BUTTERFLIES (LEPIDOPTERA) IN MOUNT BROMO FOREST AREA WITH SPECIAL PURPOSE (FASP), KARANGANYAR, CENTRAL JAWA

Zoo Indonesia ◽  
2021 ◽  
Vol 29 (2) ◽  
Author(s):  
Rizqi Adanti Putri Pertiwi ◽  
Sugiyarto Sugiyarto ◽  
Agung Budiharjo ◽  
Ike Nurjuita Nayasilana
Keyword(s):  
Wind Speed ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Pine Forest ◽  
Ecological Indices ◽  
Observation Site ◽  
Dominance Index ◽  
Wiener Diversity Index ◽  
Evenness Index ◽  
Plot Area

Butterflies are insects that must be preserved because of their role in balancing ecosystems. The purpose of this study is to know the diversity of butterflies in Mount Bromo FSAP. This research was conducted in May-August 2019. The observation site consisted of four stations, i.e. heterogeneous forest, cultivation field, sonokeling forest, and pine forest. Observation in each station was replicated three times. Time research was applied by making a 200m x 100m plot area in each station. Abiotic factors including humidity, temperature, light intensity, and wind speed were also measured in each station. Several ecological indices of butterflies were determined, including Shannon-Wiener Diversity Index (H'), Evenness Index (E), and Dominance Index (C). They were analyzed descriptively and associated with the nectar plants and abiotic factors. The result showed there are 42 species butterflies belong to five families in Mount Bromo FSAP. The butterfly diversity index is 2.78 or medium category with details 2.38, 2.50, 2.52, and 2.23 for the heterogeneous forest, cultivation field, pine forest, and sonokeling forest respectively. The diversity of butterflies is determined by the number of nectar plant, and abiotic factors suitable for butterfly activity.

scholarly journals THE ANALYSIS OF OIL CONTENT IN SEDIMENT AND COMMUNITY STRUCTURE OF MACROZOOBENTHOS IN BELAWAN WATERS OF MEDAN CITY, NORTH SUMATERA PROVINCE

2020 ◽  
Vol 3 (2) ◽  
pp. 167-178
Author(s):  
Doli Juna Setia Tanjung ◽  
Bintal Amin ◽  
Syafruddin Nasution
Keyword(s):  
Community Structure ◽  
Linear Regression ◽  
Oil Content ◽  
Diversity Index ◽  
The Other ◽  
Regression Analyses ◽  
Simple Linear Regression ◽  
Dominance Index ◽  
Ocypode Quadrata ◽  
Evenness Index

This research was conducted in March 2019 to determine the oil content in sediment, it’s community structure of macrozoobenthos and it’s a relationship in Belawan Waters of Medan City, North Sumatera. Four sampling stations with five replications in each station were surveyed. The results showed that the average oil content in sediments exceeded the threshold had set by the National Academy of Science. Macrozoobenthos found consists of Ocypode quadrata, Scyla serrate, Rotun dicauda, Penaeus sp, Murex tribulus, and Nassarius olivaccus. The highest abundance was in Station 3 and the lowest was in Station 2. The diversity index in each station was generally very low. Dominance Index in Station 4 was medium, whilst the other stations were high. Evenness index showed in Station 3 and 4 were in high population, Station 1 was in medium population and Station 2 was in low population. Simple linear regression analyses between oil content in sediment with community structure of macrozoobenthos indicated negative correlation ( Y = 10,5-0,0001x , R2 = 0,0004 and r = 0,02 ) which indicated that the higher the oil content, the lower the macrozoobenthos abundance in sediment.

scholarly journals Phytoplankton Community Investigation and Water Quality Assessment of M River in winter in Shijiazhuang City

2021 ◽  
Vol 267 ◽  
pp. 01035
Author(s):  
Ziqi Zhang ◽  
Lei Yang ◽  
Dongxu Han ◽  
Hongyan Shen
Keyword(s):  
Water Quality ◽  
Species Diversity ◽  
Water Body ◽  
Phytoplankton Community ◽  
Diversity Index ◽  
Water Quality Assessment ◽  
Species Diversity Index ◽  
Wiener Diversity Index ◽  
Eutrophic Water ◽  
Evenness Index

An investigation of phytoplankton community and water quality for M River was conducted in December 2019.The results showed that 38 species of phytoplankton belonging to 6 phyla and 26 genera were collected. Among them, Bacillariophyta is the richest species, which accounted for 34.21%, followed by Cyanophyta with 26.32% and Chlorophyta with 28.95%. The density of phytoplankton was 63.0*106 inds/L which indicated as eutrophic water body. The highest density was Bacillariophyta, accounting for 51.03%. The Shannon-Wiener diversity index (H’) varied from 1.34 to 2.24, the Margalef Species diversity index (d) varied from 2.71 to 3.85, and the Pielou evenness index (J) varied from 0.38 to 0.67. According to the integrative analysis results of H’, d and J, M River water quality belongs to oligo-polluted, but individual sites belong to meso-polluted.

scholarly journals STRUKTUR KOMUNITAS ECHINODERMATA DI KAWASAN INTERTIDAL GILI MENO, LOMBOK UTARA

2019 ◽  
Vol 12 (2) ◽  
pp. 181-188
Author(s):  
M. Irsyad A. Ghafari ◽  
Gito Hadiprayitno ◽  
M. Liwa Ilhamdi ◽  
Noar Muda Satyawan
Keyword(s):  
Essential Role ◽  
Diversity Index ◽  
Intertidal Area ◽  
Dominance Index ◽  
Aquatic Resources ◽  
Ecological Index ◽  
Environmental Friendly ◽  
Evenness Index ◽  
Belt Transect ◽  
The Stability

AbstrakEchinodermata merupakan salah satu kelompok invertebrata yang memegang peranan penting, baik secara ekologi maupun ekonomi. Pengetahuan tentang organisme ini sangat dibutuhkan terkait dengan keberadaannya di alam yang semakin tergerus oleh pembangunan dan aktivitas manusia yang tidak ramah lingkungan. Penelitian ini bertujuan untuk mengetahui struktur komunitas Echinodermata di kawasan intertidal Gili Meno, Lombok Utara, yang dilakukan pada bulan April 2018 di 6 stasiun pengamatan yang tersebar di kawasan intertidal. Pengambilan data dilakukan dengan metode belt transect dengan pengulangan sebanyak 2–4 kali pada setiap stasiun, dengan luas transek 100 m2. Hasil pengamatan menunjukkan bahwa ditemukan 13 spesies yang berasal dari 4 kelas Echinodermata, yaitu Asteroidea (1 spesies), Echinoidea (4 spesies), Holothuroidea (4 spesies), dan Ophiuroidea (4 spesies). Hasil penghitungan indeks ekologi menunjukkan bahwa indeks keanekaragaman komunitas Echinodermata berkisar antara 0,16–1,36 (kategori rendah-sedang). Indeks dominansi di setiap stasiun berkisar antara 0,32–0,94 (kategori rendah-sedang), sedangkan indeks kemerataan sebesar 0,25 (kategori rendah). Hal ini menunjukkan bahwa stabilitas komunitas Echinodermata di kawasan intertidal Gili Meno tergolong rendah. Hasil penelitian ini diharapkan dapat menjadi acuan dalam pembangunan kawasan wisata yang ramah lingkungan tanpa mengabaikan keberadaan sumber daya hayati laut di kawasan Gili Meno, Lombok Utara.Abstract Echinoderms are one group of invertebrates that play an essential role, both ecologically and economically. Knowledge about this organism is needed concerning its presence in nature, which increasingly eroded by the development and activities of people who are not environmental friendly. This study aims to determine the structure of the Echinoderms community in the intertidal area of Gili Meno, North Lombok, were conducted on April 2018 at six observation stations. Data were collected by belt transect method with repetition of 2–4 times at each station, with 100 m2 transect area.  The observations showed that found 13 species included in 4 classes of Echinoderms, namely Asteroidea (1 species), Echinoidea (4 species), Holothuroidea (4 species) and Ophiuroidea (4 species). The ecological index of the Echinoderms community showed that the diversity index ranged from 0.16–1.36 (low-medium). The dominance index at each station ranged from 0.32 to 0.94 (low-medium), while the evenness index was 0.25 (low). The stability of the Echinoderms community in Gili Meno intertidal area relatively low. The results expected to be a reference in the development of environmentally friendly tourism areas without ignoring the existence of living aquatic resources in the Gili Meno, North Lombok.

scholarly journals Structure and Distribution of Macrobenthos Community in Code River, Yogyakarta, Indonesia

2021 ◽  
Vol 2 (2) ◽  
pp. 21-27
Author(s):  
Ratih Ida Adharini ◽  
Putri Latifa Arumsari
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Diversity Index ◽  
Organic Matter Content ◽  
Matter Content ◽  
Quality Data ◽  
Water Quality Data ◽  
Wiener Diversity Index ◽  
Evenness Index ◽  
Water Ph

This research aimed to explore the community structure of macrobenthos in Code River, Yogyakarta. This research was conducted during December 2019-January 2020 in Code River, Yogyakarta. Data was taken 4 times in 6 stations. Macrobenthos was taken using a Surber net with a size of 30 x 30 cm and sampling at 5 spots in each station. Data analysis consisted of density, diversity index, dominance index, and evenness index. Water quality data consisted of water temperature, flow velocity, water depth, water pH, dissolved oxygen, and organic matter. The results showed that the density of macrobenthos ranged from 54-172 ind/m2. Our results showed that Code River has moderate diversity based on the Shannon-Wiener diversity index. Sulcospira testudinaria is the most dominant species in Code River. The evenness index showed high except at station 2 which was categorized as moderate. Code River has pretty good water quality, but stations 3, 4, and 5 which are located in the city area, it has a high organic matter content.

scholarly journals A study on the community structure of damselflies (Insecta: Odonata: Zygoptera) in Paschim Medinipur, West Bengal, India

2021 ◽  
Vol 13 (7) ◽  
pp. 18809-18816
Author(s):  
Pathik Kumar Jana ◽  
Priyanka Halder Mallick ◽  
Tanmay Bhattacharya
Keyword(s):  
Land Use ◽  
Paddy Field ◽  
West Bengal ◽  
Riparian Zone ◽  
Diversity Index ◽  
Common Species ◽  
Land Use Patterns ◽  
Species Diversity Index ◽  
Dominance Index ◽  
Evenness Index

For gauging suitability of zygopteran odonates as bioindicators of ecosystems, an attempt was made to record the seasonal diversity of damselflies from seven different types of habitats in Paschim Medinipur District, West Bengal covering 14 land use sites. The study revealed existence of 19 species of damselflies belonging to 10 genera under two families. While the riparian zone had maximum number of species (15), paddy field had the lowest number (six). Ceriagrion coromandelianum and Agriocnemis pygmaea were the most common species. C. coromandelianum was eudominant in grassland and wetland-forest interface, whereas A. pygmaea was eudominant in fish pond and paddy field. Six species, viz., Paracercion calamorum, P. malayanum, Pseudagrion australasiae, P. decorum, P. spencei, and P. microcephalum were confined only to the riparian zone. Maximum abundance of damselflies was found in the riparian zone and minimum in the paddy field. Damselflies exhibited a distinct peak in March–April and a lesser peak in September–October. Most of the land use patterns exhibited similar zygopteran faunal composition. Species diversity index was moderate (1.4–2.5) and evenness index was on the higher side (0.76–0.94). Dominance Index ranged from 26.2 to 64.6. Riparian zone appeared to be the least stressed and most equitable habitat with highest diversity and evenness index and lowest dominance index. Paddy field seemed to be the harshest habitat for damselflies with least diversity and highest dominance index. The present study suggests that community analysis of damselflies can be quite useful in the assessment of the quality of any ecosystem.

scholarly journals Keanekaragaman dan Kemerataan Spesies Anggota Ordo Anura di Lereng Selatan Gunung Merapi Tahun 2012

Biosfera ◽  
2015 ◽  
Vol 32 (1) ◽  
pp. 1
Author(s):  
Donan Satria Yudha ◽  
Yonathan Yonathan ◽  
Rury Eprilurahman ◽  
Septiana Indriawan ◽  
Eka Cahyaningrum
Keyword(s):  
Species Diversity ◽  
National Park ◽  
Diversity Index ◽  
Species Abundance ◽  
Dry Season ◽  
Species Evenness ◽  
Southern Slope ◽  
Merapi Volcano ◽  
Wiener Diversity Index ◽  
Evenness Index

Merapi volcano as one of national park is an ecotourism site which is very potential to visit. Information about species diversity for a national park is very important especially if its area fluctuated susceptibly. Two years after 2010 Merapi eruption, there are no research about species diversity and evenness of Anuran in that place. The research is carried out during June-November 2012 which is dry season. The objective of this research is to study the species diversity and evenness of Anuran in southern slope of Mount Merapi. The research is carried out in 6 locations; those are Kali Kuning, Telogo Muncar, Telogo Nirmolo, Petak Pitu, Bukit Turgo, and Bukit Plawangan. We used Visual Encounter Survey (VES) method combined with transect in Kali Kuning, Telogo Muncar, and Petak Pitu. VES method combined with time search in Telogo Nirmolo and Bukit Turgo. VES method combined with track exploration in Bukit Plawangan. Species diversity is analyzed with Shanon-Wiener diversity index. Species evenness is analyzed with Pielou evenness index. Total individuals each species is counted to know species abundance. Species diversity of anuran in southern slope of Mount Merapi is consisted of 12 species’ which is distributed in 6 locations. The highest diversity and evenness of anuran is at Bukit Turgo (H’=1.31; E=0.94). The lowest diversity and evenness of anuran is at Petak Pitu (H’=0.49; E=0.3). Species diversity of anuran in southern slope of Mount Merapi is low (Bukit Turgo and Kali Kuning) and very low (Bukit Plawangan, Telogo Muncar, Telogo Nirmolo, and Petak Pitu). Species evenness of anuran in southern slope of Mount Merapi is stable (Telogo Nirmolo and Bukit Turgo), still labil (Bukit Plawangan, Kali Kuning, and Telogo Muncar), and oppressed (Petak Pitu).

scholarly journals KEANEKARAGAMAN FAMILI ARTHROPODA TANAH DI KAWASAN HUTAN PENDIDIKAN WANAGAMA KABUPATEN GUNUNGKIDUL DAERAH ISTIMEWA YOGYAKARTA

2019 ◽  
Vol 1 (2) ◽  
pp. 59-64
Author(s):  
Muhammad Muhibbuddin Abdillah ◽  
Wuri Handayani ◽  
Tatag Bagus Putra Prakarsa
Keyword(s):  
Data Analysis ◽  
Diversity Index ◽  
Soil Arthropods ◽  
Dominance Index ◽  
Evenness Index ◽  
Dominant Individual ◽  
Collection Point ◽  
Special Region

Wanagama Education Forest is the forest made by the ecosystem successions. Wanagama developed on barren hills located at Gunungkidul Province of Yogyakarta Special Region. The succession results providing a new habitat for the wild flora and fauna including soil arthropods. The soil arthropods having an important role in the ecosystem a detritivore etc. This study aimed to knowing soil arthropods diversity at Wanagama. The study conducted at Wanagama Education Forest in December 2017. The soil arthropods collected by six pitch fall trap that was spread at each collection point. Collected specimen by pitch fall trap method then identified and analyzed using diversity, evenness and dominance index. Based on the results, there is 25 family from 13 order of soil arthropods. Based on the data analysis diversity index results are H’=1, 53 and evenness index E=0, 47. The dominant individual is from Formicidae that playing a role as predators at Wanagama. Highest diversity is from Coleoptera order.

scholarly journals KEANEKARAGAMAN JAMUR MAKROSKOPIS DI KAWASAN AIR TERJUN CURUG EMBUN KOTA LUBUKLINGGAU

2021 ◽  
Vol 4 (1) ◽  
pp. 26-32
Author(s):  
Erni Afrita ◽  
Ria Dwi Jayati ◽  
Reny Dwi Riastuti
Keyword(s):  
Relative Density ◽  
Diversity Index ◽  
Schizophyllum Commune ◽  
Sampling Technique ◽  
Species Evenness ◽  
Dominance Index ◽  
Descriptive Data ◽  
Edible Species ◽  
Evenness Index ◽  
Quantitative Descriptive

This study aims to determine the types, diversity index, species evenness index, dominance index, and relative density of macroscopic fungi in the Waterfall area of ​​Curug Embun, Marga Bakti Village, North Lubuklinggau District I. This research is quantitative descriptive. Data collection techniques in this study using the roaming method with sampling using purposive sampling technique. The results of the analysis of the macroscopic fungal diversity index in the Curug Embun Waterfall area were 1.3530, the species evenness index was 0.4516, the dominance index was 0.4776 and the highest relative density was 68.027%.  There are 3 edible species and 17 non-edible mushrooms. 17 species of macroscopic mushrooms in the Waterfall area of ​​Curug Embun were found. The diversity index, dominance, and Simpson index are in the medium category. Schizophyllum commune is the most commonly found species.  

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