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EKOLOGIA : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Published by Universitas Pakuan
ISSN : 14419447     EISSN : 26864894     DOI : 10.33751
Core Subject : Science, Education, Social, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Mathematics
Ekologia adalah jurnal ilmiah yang diterbitkan untuk mengakomodasi tulisan hasil penelitian bagi sivitas akademika Universitas Pakuan khususnya dan instansi lain di luar Universitas Pakuan pada umumnya. Jurnal ini memuat artikel primer yang bersumber langsung dari hasil penelitian Ilmu Dasar dan Lingkungan Hidup. Ekologia diterbitkan dua kali dalam setahun yaitu pada bulan April dan Oktober oleh Fakultas Matematika dan Ilmu Pengetahuan Alam-Universitas Pakuan. Semoga Jurnal ini bermanfaat bagi perkembangan hasanah ilmu pengetahuan.
Arjuna Subject : -
Articles 402 Documents
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PEMODELAN INCIDENT RATE DEMAM BERDARAH DENGUE DI INDONESIA YANG BERKAITAN DENGAN FAKTOR LINGKUNGAN MENGGUNAKAN METODE GEOGRAPHICALLY WEIGHTED REGRESSION (GWR) Kiki Amelia; Latifa Oktafiani Asril; Lasmi Febrianti
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 20, No 2 (2020): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v20i2.2167

Abstract

Dengue hemorrhagic fever cases in Indonesia often occur in cities and villages. Every year hundreds to thousands of people must be hospitalized due to this disease. There are several factors of the physical environment that directly or indirectly influence the transmission of this disease. Such as rainfall, air temperature, and humidity. In addition to the physical environment there are several other factors that can increase the occurrence of dengue cases, namely population density and the level of larvae free in an area. For this reason, we conducted a study of the above factors and their contribution in the addition of dengue cases that occurred in Indonesia in 2015 using secondary data. The purpose of this study is to identify and make a BDB iricident rate model related to environmental factors such as temperature, humidity, population density, and the amount of rainfall on the number of cases of dengue hemorrhagic fever in Indonesia in 2015. The method used is the Geographically Weighted Regression method. (GWR). In the GWR model the parameter estimation uses Weighted Least Square (WLS) by weighting the gaussian kernel function. The results of the study concluded that modeling with GWR was better than linear regression and the variables were significantly different in each region.
PEMANFAATAN BAKTERI ANTAGONIS TERHADAP PENGENDALIAN JAMUR PATOGEN Fusarium oxysporum dan Phytopthora capsici SECARA IN VITRO Tri Saptari Haryani; Olivia Mersylia Tombe
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 11, No 2 (2011): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v11i2.256

Abstract

Jamur Fusarium oxysporum merupakan patogen yang dapat menyebabkan penyakit busuk batang pada tanaman vanili. Adanya pembusukan pada jaringan batang tersebut merupakan ciri khas dari penyakit busuk batang. Gejala khas dari serangan patogen pada pangkal batang mengakibatkan pangkal batang menjadi berwarna hitam. Salah satu cara untuk mengendalikannya yaitu menggunakan agen pengendali hayati berupa bakteri antagonis. Tujuan dari penelitian ini untuk mendapatkan satu isolat bakteri antagonis yang paling efektif menekan pertumbuhan koloni serta perkecambahan konidia dan zoospora  patogen Fusarium oxysporum dan Phytopthora capsici. Penelitian dilakukan secara in vitro, tahapan kegiatan dalam penelitian ini meliputi sterilisasi alat, pembuatan media, pembuatan inokulum, pengujian antagonis isolat bakteri dan filtratnya serta pengamatannya. Bahan yang digunakan adalah isolat F.oxysporum, P.capsici dan sembilan isolat bakteri. Hasil penelitian menunjukkan bahwa dari sembilan isolat bakteri terdapat satu isolat bakteri paling efektif menghambat pertumbuhan patogen F.oxysporum yaitu isolat bakteri AKT7 sebesar 29,91% sedang isolat bakteri paling efektif menghambat patogen P.capsici yaitu isolat bakteri B5A sebesar 54,42% . Filtrat bakteri AKT7 mampu menghambat perkecambahan konidia F.oxysporum dan zoospora P.capsici. Kata kunci :  Fusarium oxysporum ,  Phytopthora capsici, bakteri antagonis
EFEKTIVITAS KOMBINASI EKSTRAK DAUN MENGKUDU (Morinda citrifolia ) dan ASAM KANDIS SEBAGAI PENURUN BERAT BADAN PADA TIKUS PUTIH JANTAN GALUR Sprague-Dawley Shinta Suci Anggraena; Min Rahminiwati; E. Mulyati Effendi
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 17, No 1 (2017): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v17i1.810

Abstract

This study aimed to determine the effect of a combination of extracts of Noni leaves (Morinda citrifolia L) and fruit kandis (Garcinia cowa Roxb) on body weight of male rats induced by high- fat calories food Test animals were used 25 rats male Sprague Dawley strain age of 2 months with body weight ± 200 g. White mice were divided into 5 groups of 4 rats each. The treatment committed agains an obesity rats. The treatment group consisted of rats doses of 1 (8,75mg/kgBB noni leaves ekstract and sour fruit kandis 7mg/kgBB), dose II (4,75 mg/kgBB noni leaves ekstract and sour fruit kandis 3,5mg/kgBB), dose III (17,5 mg/kgBB noni leaves ekstract and sour fruit kandis 14mg/kgBB), the positive control group were given Orlistat and negative group were only given food to eat and drink. The observed parameters include weight loss, abdominal width, body length, skin fold, body mass indeks. The results showed that noni leaf extract and fruit kandis can be used as a weight loss with the most effective dose is 17,5 mg /kg BB noni leaf + 14 mg/kg BB fruit kandis with the most effective treatment is 14 days. Key words : Noni Leaf and fruit kandis, Feeding a High-Fat Calories,  Obesity Parameters, Rats male Sprague Dawley.
PRAKONSENTRASI DAN ANALISIS ION KADMIUM BERBASIS FLOW INJECTION ANALYSIS Uswatun Hasanah; - Rusnadi; Bachri Amran
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 15, No 2 (2015): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v15i2.203

Abstract

CD-imprinted polymers (Cd-IPs) have been synthesized and retensinya properties have been studied for the pre concentration and analysis of cadmium concentration at the level of µ g L-1berbasis technique of flow injection analysis (FIA). This procedure is based on the retention of ions Cd (II) on Cd-IPs are synthesized. Retention cadmium ions can elution quantitatively with a solution of nitric acid directly onto the nebulizer system for atomic absorption spectrometer. The retention capacity of the Cd-IPs acquired for 20.10 mg g-1pada pH optimum and shows a quick retention kinetics. Analytical parameters such as retention capacity, the volume of the sample, the concentration and volume of eluen have been evaluated to obtain a good analytical performance. The system being developed makes it possible to analyze 15 samples per hour, with a limit of detection of the 8 µ g L-1. For the concentration of 50 μg L-1 has obtained precision values expressed as percent relative standard deviation of 1.6 (n = 5). A method of analysis that was developed has been used for the determination of cadmium in river water samples Cidurian, West Java, Indonesia with satisfactory results. Key words:  consentration, analyzing miniscule, cadmium, FIA
ANALISIS METODE LAGRANGE DAN TRANSFORMASI LAPLACE DALAM MENGHITUNG MUATAN RANGKAIAN LISTRIK SEDERHANA Embay Rohaeti
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 12, No 2 (2012): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v12i2.244

Abstract

Dalam menghitung muatan rangkaian listrik sederhana biasanya diselesaikan dengan ilmu Fisika.  Salah satu solusi alternatif lain adalah dengan menggunakan Persamaan Differensial berupa metode Lagrange dan Transformasi Laplace. Keywords:  Rangkaian  Listrik  Sederhana,  Persamaan  Differensial,  Metode  Lagrange, Transformasi Laplace.
PAKAN DAN PERTUMBUHAN IKAN KERAPU CANTANG (Epinephellus fuscoguttatus-lanceolatus) Sri Rahmaningsih; Agung Isfan Ari
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 13, No 2 (2013): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekol.v13i2.136

Abstract

Ikan kerapu cantang (Epinephellus fuscoguttatus-lanceolatus) termasuk kelompok ikan kerapu yang berharga tinggi. Jenis kerapu ini merupakan hasil persilangan ikan kerapu macan (Epinephellus fuscoguttatus) dan ikan kerapu kertang (Epinephellus lanceolatus). Tingkat pertumbuhan ikan kerapu ini sementara menunjukkan pertumbuhan yang lebih cepat jika dibandingkan dengan kerapu lain yaitu dalam masa pemeliharaan 7 bulan dapat mencapai berat 5 - 7 ons/ekor. Penelitian ini bertujuan untuk mengetahui pengaruh jenis pakan yang berbeda terhadap pertumbuhan ikan kerapu cantang (Epinephelus fuscoguttatus-lanceolatus). Penelitian ini dilaksanakan di Tambak percobaan Fakultas Perikanan dan Kelautan UNIROW selama dua bulan yaitu pada bulan April – Juni 2013. Metode penelitian yang digunakan adalah metode eksperimen, dengan rancangan penelitian yang digunakan adalah  RAK (Rancangan Acak Kelompok). Perlakuan yang diberikan adalah perbedaan jenis pakan yang berbeda setiap perlakuan yaitu ;(A) Pakan ikan rucah atau ikan segar (B) Pakan butiran pellet (C) Pakan yang dikombinasikan antara ikan rucah dan pellet. Masing-masing pakan diberikan dengan jumlah yang sama yaitu prosentase pakan 10 – 15% dari bobot tubuh ikan dan pemberian pakan dilakukan pada pagi dan sore hari. Berdasarkan hasil penelitian  menunjukan bahwa perlakuan C dengan pemberian pakan berupa ikan segar dan pellet memberikan hasil yang berbeda terhadap pertumbuhan berat, sedangkan perlakuan B memberikan hasil terbaik untuk pertumbuhan panjang. Kata kunci : kerapu cantang (Epinephellus fuscoguttatus-lanceolatus), pertumbuhan
STRATEGI PENGEMBANGAN SANCTUARY RUSA TIMOR (Rusa timorensis) TAMAN WISATA ALAM GUNUNG TUNAK, LOMBOK TENGAH Lutfia Azizah; Agum Muladi
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 22, No 2 (2022): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v22i2.5436

Abstract

Taman Wisata Alam Gunung Tunak is a conservation area located in Central Lombok Regency. One of the tourist attractions that can be developed in TWA Gunung Tunak is the Timor Deer Sanctuary (Rusa timorensis). To be developed into a tourist attraction, a study was conducted that aimed to develop a timor deer sanctuary at TWA Gunung Tunak. The method used is through observations carried out directly in the field and interviews with 2 management units managing the area and analyzed using a SWOT (Strength, Weakness, Opportunities, Threats) analysis. The results showed that the recommendation strategy, namely First, the S-O strategy of 2.5 by optimizing and increasing cooperation and utilizing the budget according to the planning that has been prepared. Second, the S T strategy of 2.2 by optimizing and utilizing the budget in sanctuary management by improving facilities and infrastructure. Third, the W-O strategy of 1.66 by optimizing coordination and planning budgets for sanctuary management needs. Finally, the W-T strategy of 1.36 by increasing and planning for the management needs of timor deer in improving sanctuary commodities. So it can be concluded that the priority strategy that can be used in developing the TWA Gunung Tunak timor deer sanctuary is the S-O strategy with a value of 2.50. The strategy carried out is to optimize and increase cooperation and utilize the budget according to the planning that has been prepared to maximize the implementation and development of the timor deer sanctuary.
KEANEKARAGAMAN JENIS TUMBUHAN PAKU (PTERIDOPHYTA) DI KAWASAN HUTAN TUMBANG MANGGU, KECAMATAN SANAMAN MANTIKEI, KABUPATEN KATINGAN, KALIMANTAN TENGAH Sri Hartini
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 20, No 1 (2020): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v20i1.1978

Abstract

Research on the diversity of ferns in the forests of Tumbang Manggu, Sub-district Sanaman Mantikei, Central Kalimantan, has been done. The study was conducted in March April 2016  by using explorative methods. The results show, at least 28 species of ferns were found in the forest area, of which 16 species are terrestrial ferns and 12 species of epiphytic ferns. These species are included in 22 genera and 14 families. Huperzia and Pyrrosia are most abundant, each genus were consists of 3 species. The most rich families in term number of species are Polypodiaceae and Lycopodiaceae, with 6 species and 4 species respectively. Abundance of each species in the region was different, Blechnum orientale L., Dicranopteris linearis (Burm. f.) Underw., Lycopodiella cernua (L.) Pic. Serm., and Vittaria scolopendrina (Bory) Schkuhr ex Thwaites were found in large quantities and spread almost all over the region. Asplenium nidus L., Drynaria quercifolia (L.) J. Sm., Stenochlaena palustris (Burm. f.) Bedd., Lygodium circinatum (Burm. f.) Sw., Pyrrosia lanceolata (L.) Farw., Nephrolepis falcata (Cav.) C. Chr. and Vittaria ensiformis Sw. were found in considerable numbers. Asplenium pellucidum Lam., Athyrium bantamense Milde, Helminthostachys zeylanica (L.) Hook. and Tectaria crenata Cav. were found in small quantities and only in certain places. Local communities around the region have not much utilizing the ferns yet.
KONDISI PANAS DI DALAM HUTAN KOTA: STUDI KASUS DI AREA DANAU UNIVERSITI SAINS MALAYSIA Saputra, Riswan Hadi
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 23, No 2 (2023): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v23i2.8315

Abstract

Open space in urban areas has an important meaning for the community. Because most people will spend time resting and recreation in that place to relieve stress in activities. One of the open spaces is tropical urban forest on USM lake. Trees are one of the important features in open space, because trees affect the comfort of the place, so that in planning the type of tree must be chosen according to the surrounding environment. Logging of thermal conditions with temperature and relative humidity parameters was carried out to determine the thermal conditions of the lake USM environment and calculate the THI values of three different tree species to find out which tree could best influence the thermal environment conditions. The study was conducted in January 2023, at USM Lake on sunny days. From the results of research, the average condition of the USM lake thermal environment is 31°C for temperature and 62.5% for Relative humidity, this result is almost the same as the thermal environmental conditions in previous studies. For THI calculations, the tree that has the best THI is Samane Saman, with 26.8°C then followed by Andira Inermis tree with 26.9°C and finally Petrocarpus Indicus with 27.2°C. knowledge of the thermal environmental conditions and species of trees is a very important part in building and developing open spaces in order to provide thermal comfort for people who come to rest and recreation.
PENGUKURAN TINGGI DAN TUTUPAN KANOPI POHON DI TAMAN SAINS, KECAMATAN DUREN SAWIT, KOTA JAKARTA TIMUR Chaerunnisa, Tiara Putri; Shabrina, Syifa Mutiara; Sulistiyanto, Tabitha Qotrunnada; Suri, Mutiara Hasna Putri; Suryanda, Ade
Ekologia: Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup Vol 23, No 2 (2023): Ekologia : Jurnal Ilmiah Ilmu Dasar dan Lingkungan Hidup
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/ekologia.v23i2.6860

Abstract

To find out or predict the potential of a particular stand or community is to take measurements. Measurement is used as the main determining factor that influences the accuracy of the data obtained. Measuring tree height is an important variable in providing a quantitative description of trees and stands that can determine the quality of stand locations and estimate several parameters. Likewise with tree canopies, the canopy or crown of a tree is a condition where the branches and leaves of a tree form overlapping each other. The aim of this research is to determine the height and canopy cover of several tree samples taken from the research location, namely Science Park, Duren Sawit District, East Jakarta City. The method used to collect tree height data is by using an inclinometer, and to measure tree canopy cover, it is measured using the GLAMA application. The results of this research showed that the Pinus merkusii tree was the tree with the highest height, namely 25.7 meters and the Leucaena leucocephala tree was the shortest tree, namely 2.4 meters. The tree height results were obtained based on tree height measurements carried out using trigonometry principles. Meanwhile, the largest Canopy Cover Index percentage was found in the Leucaena leucocephala tree, namely 77.48% and the smallest Canopy Cover Index was found in the Mangifera indica tree, which was 56.22%, with the largest and smallest percentages having a difference of 21.26%.. This difference was obtained through processing data obtained through the GLAMA application.

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