scholarly journals Identification of insects associated with ebony (Diospyros celebica Bakh.) as an endemic tree to Sulawesi

2021 ◽  
Vol 886 (1) ◽  
pp. 012037
Author(s):  
Sitti Nuraeni ◽  
Marwan Rajab ◽  
Tumanan ◽  
Diky Wahyudi
Keyword(s):  
Data Analysis ◽  
Functional Role ◽  
Light Trap ◽  
University Education ◽  
Pitfall Traps ◽  
Transient Species ◽  
Nocturnal Activity ◽  
South Sulawesi ◽  
Index Value ◽  
Richness Index

Abstract The population of ebony trees in Sulawesi has decreased and has been included in Appendix II Cites, which means it can only be traded based on quotas. Insect studies on ebony stands are still limited, especially in South Sulawesi. This study aims to determine the diversity and association of ebony with insects found in ebony stands in the Hasanuddin University Education Forest, Maros Regency. This activity was carried out in June 2021. Sampling was carried out using the light trap method for winged insects with nocturnal activity and pitfall traps for insects crawling on the ground. Data analysis to determine the diversity of insect species was carried out using the Shannon-Wiener (H') species and the Margalef index. The results showed that the insects found were 8 orders, 20 families, and 28 species from 128 individuals. Based on analysis of their functional role, the insect complexes consist of 34% herbivores, 50% predators, 8% parasitoids, 14% detritivores and 2% transient species. The diversity of species was classified as moderate, namely 2.71, while the richness index value of 5.56, which was classified as high richness in Ebony Stands.

scholarly journals Diversity and Composition of Hymenoptera Around Tidal Swamp Rice In Indragiri Hilir District, Indonesia

2021 ◽  
Vol 2 (02) ◽  
pp. 13-20
Author(s):  
Zahlul Ikhsan ◽  
Aulia Oktavia
Keyword(s):  
Agricultural Land ◽  
Diversity Index ◽  
Pitfall Traps ◽  
Ecological Role ◽  
Wiener Diversity Index ◽  
Tidal Swamp ◽  
Index Value ◽  
Rice Plantation ◽  
Richness Index ◽  
High Diversity

Pest attacks on rice plants can cause a detrimental decrease in production. Hymenoptera has many important roles in ecosystems, including as parasitoids and predators of pests. The purpose of this study was to determine the presence of Hymenoptera around tidal swamp rice in Indragiri Hilir Regency, Indonesia. Sampling used four traps, namely: 1) swing net; 2) yellow pan trap; 3) malaise trap; and 4) pitfall traps. The analysis was carried out by calculating the Shannon-Wiener diversity index (H'), the Margalef species richness index (D), the Pielou species evenness index (J). Hymenoptera found around tidal swamp rice areas of Indragiri Hilir Regency were 15.253 Hymenoptera insects consisting of 11 superfamilies, 37 families, and 304 morphospecies. Hymenoptera parasitoid had the highest diversity index value (4,80), followed by Hymenoptera pollinator (3,13) and Hymenoptera predator (3,11). The number of species of Hymenoptera parasitoid, pollinator, and predator obtained was 243; 31 and 76 species. The high diversity of Hymenoptera around tidal agricultural land optimizes its ecological role in the rice plantation ecosystem.

PENGARUH WHISTLEBLOWING SYSTEM, KEMAMPUAN AUDITOR, SKEPTISME AUDITOR, DAN INDEPENDENSI TERHADAP PENDETEKSIAN KECURANGAN

2019 ◽  
Vol 2 (2) ◽  
pp. 39-48
Author(s):  
Nur Muchlisiah Utami Magister Akuntansi Pascasarjana, U
Keyword(s):  
Data Analysis ◽  
Fraud Detection ◽  
Primary Data ◽  
Professional Skepticism ◽  
South Sulawesi ◽  
Spss Software

This research was conducted by aiming to determine the effect ofwhistleblowing systems, auditor capabilities, auditor professional skepticism andindependence of fraud detection. This study uses primary data using a questionnaire of33 auditors as a sample of all auditor numbers as many as 48 auditors working at theInspectorate Office of South Sulawesi Province. Data analysis using multiple regressionwith the help of SPSS software. The results of this study indicate that: (1) Whistleblowingsystems have a positive and significant effect on fraud detection: (2) The auditor's abilityhas a positive and significant effect on fraud detection: (3) The auditor's professionalskepticism has a positive and significant effect on fraud detection: (4) Independencepositive and significant effect on fraud detection.

scholarly journals Assessment and Composition of Fish in the River District Maro Merauke

2018 ◽  
Vol 73 ◽  
pp. 04006
Author(s):  
Edy H.P Melmambessy ◽  
Irianis L. Latuperissa ◽  
Marius Agustinus Welliken ◽  
Nova Suryawati Monika ◽  
Rosa Delima Pangaribuan
Keyword(s):  
Data Analysis ◽  
Species Composition ◽  
Diversity Index ◽  
Survey Method ◽  
Frequency Diversity ◽  
Lates Calcarifer ◽  
Dominance Index ◽  
Gill Net ◽  
Scomberomorus Commerson ◽  
Index Value

Maro River is one of the major rivers in Merauke Regency that has a width of about 43-900 m and length of 300 km. The purpose of this study is to find out the type and composition of fish caught using gill net in Maro River, Merauke Regency. This study was conducted in Maro River, Merauke Regency from May to June 2014. It was conducted using survey method. The data analysis included: species composition, relative abundance, availability frequency, diversity index and dominance index. The results of showed 1,084 fish in 17 species with the following composition; 490 of Kurtus gulliveri species (37,01%), 212 of Eleutheronema tetradactylum species (20,33%), 170 of Polydactylus plebeius species (16,30%), 75 of crassilabris Cinetodus species (7,19%), 64 of Cinetodus froggatti species (6,14%), 37 of Argyrosomus amoyensis species (3,55%), 20 of Mugil cephalus species (1,92%), 15 of Megalops cyprinoides species (1,53%), 15 of Thryssa scratchleyi species (1,4%), 12 of Lebtobrama sp species (1,15%), 9 of Lates calcarifer species (0,86%), 7 of Marilyna meraukensis species (0,67%), 7 of Scomberomorus commerson species (0,67%), 5 of Nibea squamosal species (0,48%), 4 of Rhinoptera javanica species (0,38%), 3 of Harpadon microchir species (0,29%) and 1 of Datnioides campbelli species (0,10%). Based on the availability frequency, there are 37 species with a percentage of 100%, 37 species with 67% and 7 species with 33%. The diversity of fish has a moderate value of 1<H’<3. The obtained dominance index value is close to 0, then it is stated that there is no species found to be dominant.

scholarly journals STUDI KOMUNITAS GASTROPODA DI PERAIRAN PASANG SURUT DESA HUTUMURI KECAMATAN LEITIMUR SELATAN KOTA AMBON

2020 ◽  
Vol 6 (1) ◽  
pp. 53-61
Author(s):  
Benjamin Mornaten
Keyword(s):  
Data Analysis ◽  
Coastal Communities ◽  
Gastropod Species ◽  
Diversity Pattern ◽  
Snail Shell ◽  
Species Dominance ◽  
Transect Line ◽  
Ecological Parameters ◽  
Tidal Waters ◽  
Index Value

Background: Ecologically, gastropods have an important role to control the population of macroalgae in coral reefs, and economically the snail shell can be used as a source of income for people, especially coastal communities. Method: The method used is a quadratic linear transect method that is placed perpendicular to the coastline with a combination of plots on the transect line. Data analysis included species composition, diversity, dominance, and evenness of gastropod species. Results: The results of the study were 1549 gastropod individuals consisting of 46 species of 23 genera, 17 families, 2 subclasses and 4 orders. In general, the diversity and abundance of gastropods in the coastal tidal waters of the hutumuri village are relatively moderate and the species dominance is evenly distributed. Conclusion: Which consists of 46 species, 21 genera, 17 families and 4 orders. Ecological parameters of the gastropod community in the tidal waters of Hutumuri Village are density value (0.97 ind/m2), abundance value (12.867 in/m) important value (0.2590), diversity value (3.0468), dominance value (0,1445), the value of harmony (0.8010). Dominant index value (D) (0.1445) indicates no species dominance. The diversity pattern of gastropod species in the tidal waters of Hutumuri Village is having a uniform distribution pattern.

scholarly journals IKTIODIVERSITAS DI SUNGAI WANGGO KAMPUNG ERAMBU DISTRIK SOTA KABUPATEN MERAUKE

2019 ◽  
pp. 56-63
Author(s):  
Edmondus K. Laratmase ◽  
Norce Mote ◽  
Edy HP. Melmambessy
Keyword(s):  
Data Analysis ◽  
Survey Data ◽  
Diversity Index ◽  
Total Catch ◽  
Evenness Index ◽  
Index Value

This study aims to determine the diversity of fish in the River Wanggo District Sota Merauke regency. This research was conducted in May-July 2017. The method used in this research is The method used is survey.  Data analysis used are Species Wealth, Diversity Index (H'), Evenness Index (E), Domination Index (D). The results of the study there are 25 species of fish with a total catch of 1,392 tails. The index value of Diversity (H ') and moderate (1.10-1.27) whereas fairness values ​​are high (2.39-2.72) and the spread of each species is evenly distributed. No fish dominates all three stations.   Keywords: Ichtiyodiversity; Wanggo River; Merauke.  

scholarly journals DISTRIBUSI TEMPORAL DAN SPASIAL TEKANAN UDARA TERKAIT PERTUMBUHAN AWAN DI DAS LARONA, SULAWESI SELATAN

2011 ◽  
Vol 12 (2) ◽  
pp. 55
Author(s):  
Tri Handoko Seto
Keyword(s):  
Data Analysis ◽  
Spatial Data ◽  
Air Flow ◽  
Air Pressure ◽  
Rainfall Data ◽  
Spatial Data Analysis ◽  
Weather Modification ◽  
Air Mass ◽  
Strong Growth ◽  
South Sulawesi

Telah dilakukan análisis temporal dan spasial data tekanan udara dan curah hujan menggunakan data hasil pengukuran dengan AWS dan penakar hujan manual di DASLarona, Sulawesi Selatan. Dari hasil analisis temporal nampak bahwa tekanan udarapermukaan cenderung turun saat pertumbuhan awan. Penurunan tekanan menjadi energi yang digunakan untuk menarik massa udara di sekitarnya. Ketika terjadi hujan maka tekanan udara menjadi tinggi akibat adanya pendinginan masa udara. Dari analisisspasial nampak bahwa daerah yang memiliki tekanan lebih rendah cenderung memilikicurah hujan yang lebih tinggi dibandingkan dengan daerah-daerah di sekitarnya. Hasilpenelitian ini bisa dijadikan referensi bahwa ketika terjadi pertumbuhan awan di suatulokasi maka aliran udara akan masuk menuju lokasi pertumbuhan awan. Semakin kuat pertumbuhan awannya maka semakin kuat tarikan massa udara dari sekitarnya. Dalam teknologi modifikasi cuaca, usaha memperkuat pertumbuhan awan mungkin bisa dijadikan salah satu strategi untuk menarik massa udara atau awan-awan yang lebih kecil ke area dengan pertumbuhan awan yang kuat. Namun masih perlu dilakukan penelitian lebih lanjut untuk membuktikan hipotesa ini.Temporal and spatial data analysis of air pressure and rainfall data using AWS andrain gauges in the watershed of Larona, South Sulawesi has been done. From theresults it appears that surface air pressure tends to fall when clouds develop. Pressuredecreasing became energy which is used to draw air mass from the vicinity. When itrains then the air pressure increased due to the cooling of the air. From the spatialanalysis it appears that areas with lower pressure tend to have higher rainfall than thesurrounding areas. The results of this study can be used as a reference that when thereis cloud growth in a location, air flow will go to the location of cloud growth. The stronger cloud’s growth the stronger pull of the surrounding air mass. In weather modification technology, strengthen the growth of cloud technique may be used as one strategy to attract the mass of air or clouds of smaller clouds to the area with strong growth. But it still needs to do further research to prove this hypothesis.

scholarly journals Keanekaragaman Vegetasi Pohon pada Lahan Pekarangan di Desa Tambakrejo Kecamatan Jombang Kabupaten Jombang

2021 ◽  
Vol 5 (2) ◽  
pp. 23-28
Author(s):  
Indah Fitriani ◽  
Nur Faisal Andani ◽  
Anggi Indah Yuliana ◽  
Ahmad Syaifudin
Keyword(s):  
Data Analysis ◽  
Diversity Index ◽  
Residential Areas ◽  
Importance Value Index ◽  
Importance Value ◽  
H Index ◽  
Purposive Sampling ◽  
Medium Level ◽  
Index Value ◽  
Important Value Index

Tambakrejo Village is an urban area located in the Jombang District. Tree vegetation continues to decline; one of the factors is the conversion of the function of yardland to residential areas. Changes in the land area will impact the structure of tree vegetation. This research was conducted by purposive sampling in 4 hamlets. Transects and species were included as random effects using the transect quadrat method (quadrat transect) by purposive sampling with tree size (10x10 m<sup>2</sup>). The data analysis was done qualitatively and quantitatively. Quantitative data analysis using vegetation analysis, namely: Importance Value Index (IVI), Dominance (C), and Diversity Index (Ĥ). Strata 3 tree vegetation H’ index in Tambakrejo Village, each hamlet is different, for Tambakberas Hamlet, H’ index value is 3.11%, Gedang Hamlet 2.97%, Nglungu Hamlet 2.91%, and for Petengan Hamlet 2, 89%. Most of the hamlets in Tambakrejo Village fall into medium-level diversity. INP index of Tambakberas Hamlet of 22.59% and lowest 2.07%. Gedang of 27.57% and lowest 2.84%, Nglungu of 19.76%, and lowest 2.86% Petengan of 28.79% and lowest 2.73%, The lowest Important Value Index is due to the transfer of the function of yard land for residential areas.

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