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 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 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.  

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 KEANEKARAGAMAN DAN KOMPOSISI IKAN PADA KONDISI PASANG DAN SURUT DI MUARA SUNGAI KELAY KABUPATEN BERAU KALIMANTAN TIMUR

2019 ◽  
Vol 10 (2) ◽  
pp. 11
Author(s):  
Yudistira Yudistira ◽  
Jusmaldi Jusmaldi ◽  
Medi Hendra
Keyword(s):  
Species Diversity ◽  
Fish Species ◽  
Sampling Method ◽  
Diversity Index ◽  
High Tide ◽  
Similarity Index ◽  
Wiener Index ◽  
Dominance Index ◽  
East Kalimantan ◽  
Evenness Index

Research on diversity and composition of fish at low tide and high tide condition in downstream Kelay River, District Berau, East Kalimantan is not yet know. The purpose of this research was to determine diversity and composition of fish that present at low tide and high tide condition in downstream Kelay River. In research using purposive sampling method and various sizes gill nets used. Results of this research shows that fish were collected at three locations sampling in downstream Kelay River consist of 14 species, 9 families, and 953 individuals. Based on the number of species, diversity Shannon-Wiener index and dominance index has stable of communities, with high value of diversity index (H'=1.975), high evenness index (E=0.749), and low value of dominance index  (D= 0.173). The number of fish species found at low tide were 11 species and at high tide were 12 species. The similarity index of fish species at low tide and high tide condition were 64.3%.

scholarly journals The Effect of the Blue and Black Light Trap on the Diversity of the Trichoptera (Caddisfly Adult) and Other Insects in Lotic and Lentic Area of Mae Tam Reservoir, Thailand

2021 ◽  
Vol 18 (23) ◽  
pp. 717
Author(s):  
Arthit Nuntakwang ◽  
Decha Thapanya ◽  
Hakan Bozdoğan
Keyword(s):  
Blue Light ◽  
Diversity Index ◽  
Light Trap ◽  
Similarity Index ◽  
Wiener Index ◽  
Abundant Species ◽  
Wiener Diversity Index ◽  
Sampling Points ◽  
Evenness Index ◽  
Better Than

This study was conducted using two types of light traps to collect the insects at Mae Tam Reservoir from January to April 2018. The sampling area was divided into 4 points. Two points were located at the reservoir’s bank, and the others were located at the reservoir’s outlet. The study aimed to compare the efficiency of the fluorescent tube's blue and purple light, which had a different wavelength on insect’s attraction. To compare the diversity of Trichoptera in the different stream habitats, Sørensen similarity index, Shannon-Wiener index, and Evenness index were used. The result showed that purple light could attract insects better than blue light. Hymenoptera was attracted by purple light. Coleoptera and Hemiptera were attracted by blue light. The study on the diversity of Trichoptera showed that there were 2,534 individuals of 9 families 48 species were collected. Ecnomus puro was the most abundant species (1,120 individuals). The highest Shannon-Wiener diversity index was sampling points 4 (2.10). The highest Evenness index was sampling points 4 (0.62). Sørensen similarity index showed that sampling points 3 and 4 had the highest value (67.92 %) because they were adapted from a natural creek to concrete where boulder, gravel, cobble, sand, and woody material were deposited at the stream bottom. These provided various microhabitats for insect larva to live and develop. The riparian had affected the distribution and colonization of mature insects.

scholarly journals Diversity of Molluscs (Gastropod And Bivalve) In Mangrove Ecosystem of Oransbari District, South Manokwari Regency, West Papua Province, Indonesia

2020 ◽  
Vol 8 (3) ◽  
pp. 1220-1224
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Mangrove Ecosystem ◽  
Species Evenness ◽  
Species Diversity Index ◽  
Dominance Index ◽  
High Category ◽  
West Papua ◽  
Evenness Index

In the Oransbari mangrove ecosystem, 13 species of molluscs were identified with 1256 individuals consisting of 9 species of gastropod and 2 species of bivalve. Dominance index of the identified molluscswas 0.11, with species diversity index of 1.89 (medium category) and species evenness index of 0.76 (high category).

scholarly journals Diversity of Demersal Fish Resources in Ambon Island Waters

2019 ◽  
Vol 18 (3) ◽  
pp. 223
Author(s):  
Friesland Tuapetel ◽  
Delly DP Matrutty ◽  
Welem Waileruny
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Wiener Index ◽  
Demersal Fish ◽  
Simpson Index ◽  
Dominance Index ◽  
Fish Resources ◽  
Wiener Diversity Index ◽  
Resource Diversity ◽  
Water Species

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 demersal resource diversity analysis are several ecological indexes i.e. Shannon-Wiener diversity index, Pielou uniformity index, and Simpson's dominance index. The result showed that 21 family and 57 species with details of 35 species in the northern waters and 32 species in the southern water. Species diversity based on Shannon-Wiener Index (H´) ranged between 1,61-3,10 while species evenness index (E) was around 0,83-0,95. The abundance of demersal fish was not dominated by any fish species, showed by the average Simpson index of dominant (D) around 0,05-0,26.AbstrakPerairan Pulau Ambon termasuk daerah penangkapan sumber daya ikan demersal yang potensial, namun informasi ke-anekaragamannya masih sangat sedikit. Penelitian ini bertujuan untuk menganalisis kekayaan jenis dan keanekara-gaman ikan demersal di perairan Pulau Ambon. Pengambilan data dilakukan dengan cara penangkapan eksperimental dengan menggunakan alat tangkap bubu pada dua lokasi yakni perairan utara (Maret-April 2015) dan perairan selatan Pulau Ambon (Juli-Oktober 2016). Metode  analisis keanekaragaman sumber daya ikan demersal menggunakan bebe-rapa indeks ekologi yakni indeks keanekaragaman Shannon-Wiener, indeks keseragaman Pielou, dan indeks dominansi Simpson.  Hasil penelitian menunjukkan bahwa di perairan Pulau Ambon teridentifikasi 21 famili dan 57 spesies de-ngan rincian 35 spesies di perairan utara dan 32 spesies di perairan selatan. Status keanekaragaman jenis indeks Shannon-Wiener (H´) berkisar 1,61-3,10 sedangkan indeks keseragaman jenis (E) sebesar 0,83-0,95. Kelimpahan ikan demersal tidak ada yang dominan, ditunjukkan oleh indeks dominan Simpson (D) sebesar 0,05-0,26. 

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.

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