scholarly journals Dispersal of Insect at Honitetu Forest in West Seram District

2021 ◽  
Vol 2 (1) ◽  
pp. 39-47
Author(s):  
Fransina Latumahina ◽  
Cornelia Wattimena ◽  
Gabriella Mattinahoru
Keyword(s):  
Pitfall Trap ◽  
Insect Species ◽  
Systematic Sampling ◽  
Dominance Index ◽  
Plot Size ◽  
Evenness Index ◽  
Bait Traps ◽  
Observation Path

The research objective was to determine the spread of insect species in educational forests and the diversity and abundance of insects. The research was carried out in the Educational Forest of ​​Honitetu in May - June 2020 using the method of drawing sample plots in ​​3 hectares, then an observation path was made using the path method for insect inventory and systematic sampling for vegetation inventory with the plot size. 20 m wide, 100 m long with a distance between lines of 20 m. Insects were collected using hand-collecting and pitfall trap methods at a distance of 10 m and bait traps every 10 m. The results of the study found 6462 insects consisting of 62 species in 12 orders, are Coleoptera, Hymenoptera, Orthoptera, Diptera, Blattaria, Hemiptera, Lepidoptera, Phasmatodea, Opiliones, Araneae, Mantodea in 35 families, namely Chrysomelidae, Cerambycidae, Formicidae, Apidae, Calliphoridae, Tettigoniidae, Acrididae, Grylludae, Blaberidae, Pentatomidae, Piesmatidae, Culicidae, Carabidae, Alydidae, Nanomatidae, Eresidae, Vespidae, Asilidae, Zodaridae, Buprestidae, Phasmatidaal, Blattidae, Platypezidae, Sarcophidae, Noctuidae, Rhaphidophoridae, Sclerosomatidae, and Ichneumonidae. Most species found from the Order Hymenoptera Family Formicidae and the most diminutive species found are the Order Lepidoptera Family Danaidae, Papilionidae, Nymphalidae, Order Hymenoptera Family Braconidae, and Order Opiliones Family Sclerosomatidae. The maximum H 'value is 4.127, the evenness index of 0.628 is classified as moderate, and the dominance index is 0.111 and is classified as low.

scholarly journals TIPE KOMUNITAS HUTAN LAHAN KERING DI HUTAN LINDUNG SENTAJO, KABUPATEN KUANTAN SINGINGI, RIAU Community Types of Dryland Forest Within The Sentajo Protected Forest, Kuantan Singingi Regency, Riau Province

2017 ◽  
Vol 8 (2) ◽  
pp. 103-109
Author(s):  
Pebriandi . ◽  
Omo Rusdiana ◽  
Muhammad Buce Saleh
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Similarity Index ◽  
Systematic Sampling ◽  
Importance Value Index ◽  
Species Diversity Index ◽  
Dominance Index ◽  
Coverage Area ◽  
Vegetation Diversity ◽  
Evenness Index

Sentajo Protected Forest located in Kuantan Singingi Regency, Riau Province. There is no information about vegetation diversity in this location. Therefore this study was conducted. This study aimed to determine the diversity of vegetation, structure, and composition of each community in Sentajo Protected Forest. The study was conducted in April-September 2016. A sampling design was determined using systematic sampling with random start. The sampling intensity used was 5%. The parameters measured in this study were the importance value index, similarity index between communities, species diversity index, evenness index, dominance index, regeneration, as well as horizontal and vertical structures. Based on the type of soil, elevation, and slope, 6 communities were grouped from the dense coverage area (forested). The results showed that the Sentajo Protected Forest had 424 flora consisted of 254 species, and 102 families. Sentajo Protected Forest had similarity index between 18 - 64%, species diversity index of 2.62 - 4.15, evenness index of 0.59 - 0.86, dominance index of 0.02 - 0.08. The larger the diameter of the tree, the smaller the number of individuals. The stratification of the canopy had 5 layers of canopy. Sentajo Protected Forest regeneration was relatively good as the number of seedlings> saplings> mature trees.Key words: community, composition and structure, diversity, Sentajo Protected Forest.

scholarly journals TIPE KOMUNITAS HUTAN LAHAN KERING DI HUTAN LINDUNG SENTAJO, KABUPATEN KUANTAN SINGINGI, RIAU

2018 ◽  
Author(s):  
Pebriandi ◽  
Omo Rusdiana ◽  
Muhammad Buce Saleh
Keyword(s):  
Species Diversity ◽  
Diversity Index ◽  
Similarity Index ◽  
Systematic Sampling ◽  
Importance Value Index ◽  
Importance Value ◽  
Species Diversity Index ◽  
Dominance Index ◽  
Coverage Area ◽  
Evenness Index

Sentajo Protected Forest located in Kuantan Singingi Regency, Riau Province. There is no information aboutvegetation diversity in this location. Therefore this study was conducted. This study aimed to determine the diversity ofvegetation, structure, and composition of each community in Sentajo Protected Forest. The study was conducted in AprilSeptember2016. A sampling design was determined using systematic sampling with random start. The sampling intensityused was 5%. The parameters measured in this study were the importance value index, similarity index betweencommunities, species diversity index, evenness index, dominance index, regeneration, as well as horizontal and verticalstructures. Based on the type of soil, elevation, and slope, 6 communities were grouped from the dense coverage area(forested). The results showed that the Sentajo Protected Forest had 424 flora consisted of 254 species, and 102 families.Sentajo Protected Forest had similarity index between 18 - 64%, species diversity index of 2.62 - 4.15, evenness index of0.59 - 0.86, dominance index of 0.02 - 0.08. The larger the diameter of the tree, the smaller the number of individuals.The stratification of the canopy had 5 layers of canopy. Sentajo Protected Forest regeneration was relatively good as thenumber of seedlings> saplings> mature trees.

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 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 DISTRIBUTION AND DIVERSITY OF BUTTERFLIES (Lepidoptera: Rhopalocera) IN CAMPUS AREA INDRALAYA SRIWIJAYA UNIVERSITY OF SOUTH SUMATRA

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
Syafrina Lamin ◽  
Nirmila Sari ◽  
Doni Setiawan
Keyword(s):  
Species Diversity ◽  
Butterfly Species ◽  
Habitat Types ◽  
Dominance Index ◽  
Science Faculty ◽  
Law Faculty ◽  
Evenness Index ◽  
Range Of Values ◽  
Collection Methods

Research on Diversity and distribution of butterflies, was held at the Campus Indralaya Sriwijaya University of South Sumatra. The purpose of this study was to obtain information species diversity of butterflies at the Sriwijaya University of Inderalaya and distribution of species of butterflies in several different habitat types in the campus area Unsri Indralaya. The study used purposive and collection methods in November 2014-january 2015. Sampling sites were divided into five locations: Arboretum, Science Faculty, Faculty of Law, Faculty of Agriculture and Swamp Cape Disconnect. The parameters used are the index of species diversity, dominance index, and evenness index. The results showed that the diversity of butterflies in the region is classified as moderate. Overall found as many as 40 species of butterflies with a number of 609 individuals consisting of 5 the Papilionidae, Nymphalidae, Pieridae, Lycaenidae, and Hesperiidae. Regions Sriwijaya University has a diversity of butterflies that were moderate with criteria (H'1≤H'≤3), in each different habitat types, and not found butterfly species that dominate in every type of habitat in this Unsri region. Distribution of butterflies found in the campus area Unsri Indralaya categorized fairly evenly with a range of values from 0.58 to 0.68.Keywords: Butterflies,  Diversity,  Distribution , Sriwijaya University of Indralaya

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 SERANGGA PERMUKAAN TANAH DI KAWASAN BUKIT GATAN KABUPATEN MUSI RAWAS

2021 ◽  
Vol 3 (2) ◽  
pp. 65-70
Author(s):  
Dina Setiawati ◽  
Yunita Wardianti ◽  
Mareta Widiya
Keyword(s):  
Sampling Method ◽  
Diversity Index ◽  
Abiotic Factors ◽  
Ground Surface ◽  
Soil Surface ◽  
Pitfall Trap ◽  
Dominance Index ◽  
Ecological Index ◽  
Hill Area ◽  
Qualitative Descriptive

This study aims to determine the diversity of soil surface insects, in the Bukit Gatan area, Musi Rawas Regency. This research is a qualitative descriptive study using a pitfall trap and using a random sampling method. The results showed that the types of ground surface insects contained 3 orders, 5 families and 10 species.The results of the analysis of the ecological index of soil surface insects in the Gatan hill area, Musi Rawas Regency, namely the diversity index (H') 1.241 in the low category, Evennes index (E') 0.64 in the medium category, and the dominance index (C)0.277 in the medium category.The abiotic factors in the Bukit Gatan area, Musi Rawas Regency at the research site are the average air temperature 29℃, average soil pH 6.5, and average soil moisture 85.3%.Diversity of soil surface insects in the Bukit Gatan area, Musi Rawas Regency is in the low category.

scholarly journals Evaluating Efficiency of Sampling Schemes in Tropical Natural Forests: Review and Simulation Experience from Kenya

2019 ◽  
pp. 1-15
Author(s):  
Joseph Hitimana ◽  
James Legilisho Ole Kiyiapi ◽  
Balozi Kirongo Bekuta
Keyword(s):  
Forest Type ◽  
Sampling Error ◽  
Basal Area ◽  
Sampling Technique ◽  
Montane Forest ◽  
Systematic Sampling ◽  
Natural Forests ◽  
Forest Types ◽  
Sampling Schemes ◽  
Plot Size

Forest measurements, especially in natural forests are cumbersome and complex. 100% enumeration is costly and inefficient. This study sought to find out reliable, efficient and cost-effective sampling schemes for use in tropical rain forest (TRF), moist montane forest (MMF) and dry woodland forest (DWF) in Kenya. Forty-eight sampling schemes (each combining sampling intensity (5, 10, 20, 30%), plot size (25, 50, 100, 400 m2) and sampling technique (simple random sampling, systematic sampling along North-South and along East-West orientations) were generated for testing estimates of forest attributes such as regeneration through simulation using R-software. Sampling error and effort were used to measure efficiency of each sampling scheme in relation to actual values. Though forest sites differed in biophysical characteristics, cost of sampling increased with decreasing plot size regardless of the forest type and attribute. Accuracy of inventory increased with decreasing plot size. Plot sizes that captured inherent variability were 5mx5m for regeneration and trees ha-1 across forest types but varied between forest types for basal area. Different sampling schemes were ranked for relative efficiency through simulation techniques, using regeneration as an example. In many instances systematic sampling-based sampling schemes were most effective. Sub-sampling in one-hectare forest unit gave reliable results in TRF (e.g. SSV-5mx5m-30%) and DWF (e.g. SSV-10mx10m-30%) but not in MMF (5mx5m-100%). One-hectare-complete-inventory method was found inevitable for regeneration assessment in montane forest.

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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