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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 932 Documents
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Survey for hymenopteran parasitoids from forest stand and rice field area Idham Cholik Ramadhan; Manap Trianto; Dirham Dirham
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i2.3305

Abstract

Hymenopteran order is an order of insects that is useful for pollinating plants, producing honey and wax and can kill insects that harm plants (pests). This study aims to determine the results of collections of Hymenoptera parasitoid insects from forest stands and rice fields. The research was carried out in January-March 2019. The sampling locations were carried out in two types of areas, namely forest stands and rice fields. Based on the results of the study, it was found that the two orders of insects that had a dominant number from the collection were the Order Diptera and Order Hymenoptera. The number of Hymenoptera insects in the forest stands and rice fields were 1.586 individuals and 2.179 individuals, respectively, with a total of 21 families of parasitoid insects. The use of separators in the collection of Hymenoptera parasitoid insects has several advantages compared to using other insect net, namely making it easier to collect insects and the number of insects caught is also higher.
The Activity of Lenglengan Leaf Extract (Leucas lavandulifolia Sm.) as an Antibacterial for Staphylococcus aureus Virgolie Diknas Ximenis; Refli Refli; Djeffry Amalo; Alfred Dima; Rony Mauboy; Maria Ruma
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i2.3351

Abstract

Dafala village is one of the villages in NTT that uses lenglengan leaves as traditional medicine to treat diseases such as coughs, TBC, diarrhea and back pain.This present research aims to know the bioactive compounds and composition of the bioactive contained in Lenglengan (Leucas lavandulifolia Sm.) leaf extract, and too know the effectiveness of lenglengan leaf extract in inhibiting Staphyloccocus areus bacteria. We extracted leaves of Lenglengan by maceration method using ethanol. The extract was obtained and then tested in a qualitative way to determine the bioactive compounds are made by using reagents. While in the quantitative test to Determine of levels of flavonoids, phenols and tannins using UV-Vis spectrophotometry method, alkaloids and saponins using the gravimetric method. The Antibacterial test was carried out by disc paper method. Paper discs containing extract concentrations: 12.5%, 25%, 50%, 62.5% and 75%, positive control (gentamicin) and negative control (aquadest) were placed on MHA media containing S. aureus suspension, incubated at 37°C for 24 hours and then the diameter of the inhibition was observed. Qualititive test result show that the lenglengan leaf extract contains 5 bioactive compounds include alkaloids, flavonoids, saponins, tannins, and phenols. The composition of bioactive compounds in Lenglengan   leaf extract: flavonoids 23.93%, saponins: 19.05%, alkaloids: 15.28%, tannins: 5.81%, and phenols: 2,335%. The atibacterial result reveal that lenglengan leaf extract was significantly affect in inhibiting Staphylococcus aureus. The higher concentration of extract lenglengan leaves used, the higher the inhibition zone produced. The highest level response inhibition showed from level of 12.5%: 11.3 mm, 25%: 12.4 mm, 50%: 13.43 mm, 62.5%: 14.43 mm and 75%: 15.58 mm, gentamicin: 17.4 mm aquades:  0 mm.
Netrophil-Lymphocyte Ratio (NLR) as a Predictor of Severity in Covid-19 Patients Fasni Halil; Marwah Widuri Anwar; Sundari Sundari
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i2.3356

Abstract

Early identification is needed to predict the condition of patients who are at risk of worsening symptoms to become more severe. Simple laboratory tests such as measurement of the neutrophil-lymphocyte ratio are known to be used as factors to determine the patient's prognosis in various clinical situations. The purpose of this study was to analyze the value of the neutrophil-lymphocyte ratio as a predictor factor for COVID-19. This study is retrospective, using medical record data of 327 Covid-19 patients at the Dr Chasan Boesoirie Hospital Ternate from April to September 2021. Subjects were classified as not severe and severe COVID-19. The value of the neutrophil-lymphocyte ratio was determined based on the results of a routine blood test (sysmex XN-1000B3 BF). Data were analyzed using SPSS version 16, Pearson's test to determine the relationship between NLR and severity and using the ROC (Receiver Operating Characteristic) curve to determine the strength of the relationship with the Cut-off value, p < 0.05 and AUC to determine the sensitivity and specificity of NLR to COVID-19 severity. Results: From 327 subjects consisting of 229 non-severe and 98 severe, the neutrophil-lymphocyte ratio (NLR) in the non-severe (3.45±2.02) was significantly different from the severe (9.73±5.64) (p < 0.00). The ROC (Receiver operating Characteristic) curve shows that the NLR has a sensitivity of 83%, specificity of 82% with a cut-off of 3.5 with a positive predictive value (PPV) of 88.2% and a negative predictive value (NPV) of 83.6%. The results of this study can be used as a reference for determining clinical prognosis using neutrophil ratio data.
The diversity of plant species in the ecotourism zone of Gunung Leuser National Park, Tangkahan, Indonesia Deliana Febrianti; Muhammad Dandi Harisandy; Adi Bejo Suwardi
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i2.3367

Abstract

Gunung Leuser National Park (TNGL) is one of Indonesia's conservation areas, serving as a haven for various plants and animals. The ecotourism zone is a part of the utilization zone in the GLNP area that is intended for the development of ecotourism and has a high diversity of plant species. However, information concerning the potential of plants in the GLNP's ecotourism zone has not been widely disseminated. The present study aims to inventory plant species in Gunung Leuser National Park's ecotourism zone. The exploration method was used in this study, which lasted from November to December 2021. A total of 47 plant species from 30 families were discovered in the study area, with Apocynaceae, Euphorbiaceae, Fabaceae, Lamiaceae, and Solanaceae having the most species. These plants have a variety of uses, including food, spices, ornamental plants, and materials for traditional/ritual ceremonies.
Identification of Pests and Deseases on Chrysanthemum in Nglurah Village, Tawangmangu Anas Pratiwi; Gilang Bayu Saputro; Nadya Ayu Dewantari
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i2.3375

Abstract

Chrysanthemum (Dendrathema grandiflora Tzvelev syn. Chrysanthemum murifolium Ramat) is one of the cut flowers and potted flowers favored by the public, especially the upper middle class and ornamental plants. Chrysanthemum is a commercial plant that is easy to grow and cultivate. Pests and diseases are one of the problems in the development of chrysanthemum cultivation. This research is located in the area of Sewu Kembang Agro Tourism, Nglurah, Tawangmangu, Karanganyar Regency. This research was conducted from September 4 to October 2, 2021. This research was carried out for 29 days using 10 samples of potted chrysanthemums. The tools used include other cameras to take pictures and stationery to record data. The variables observed were pests and diseases that attack chrysanthemum plants. In this study using direct observation of the owners of potted chrysanthemums. The data obtained were analyzed descriptively qualitatively. The result of this study found pests that attack potted chrysanthemums, namely leaf miners (Liriomyza sp.) and soil caterpillars (Agrotis ipsilon). While for disease attacks caused by several types of fungi that cause diseases as follows leaf rust disease, gray mold disease, and oidium powder disease.
The Identification of Soil Insect in The Karandangan Natural Tourism Forest Immy Suci Rohyani; Yunda Sulistiani
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i1.3387

Abstract

Live insects rely on their habitat. Soil serves as a place to live, defense and a source of food for soil insects. Soil insects act as decomposers of organic materials and can be used as indicators of soil fertility and determinants of the stability of an ecosystem. This study aims to identify the types of insects found in the Kerandangan Nature Tourism Park Forest. This research is descriptive exploratory, sampling by purposive sampling with pitfall trap method. The results obtained 18 families 27 genera with the number of individuals as many as 520 individuals. Formicidae had the most number of individuals, namely 297 individuals. The genera with the highest number of individuals were Oechophylla (154), Streblognathus (89), Alphitobius (75), Gryllus (48), Macrotermes (48).
Variations in Microbial Community on the Nutrient Content of Fermented Fish Feed Pellets with Tofu Waste Endah Rita Sulistya Dewi; Ary Susatyo Nugroho; Ulfah Maria
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i2.3418

Abstract

Tofu industrial waste has the potential to become an environmental pollutant when not treated optimally, so it needs proper treatment to minimize pollution. Fish farmers are expected to be able to innovate in terms of fish cultivation, so that harvest yields can be optimal to meet food needs. Furthermore, fermentation technology by Saccharomyces cerevisiae and Rhyzopus oligosporus are potential fungi that can increase the nutritional value of waste. This research aimed to produce an appropriate technology to produce fish feed pellets from fermented Saccharomyces cerevisiae and Rhyzopus oligosporus based on waste. This research method was designed in the form of research using a completely randomized design with 4 treatments (P0 without microbes); (P1 given Saccharomyces cerevisiae (2 gr) and Rhyzopus oligosporus (2 gr); (P2 Saccharomyces cerevisiae (1 gr) and Rhyzopus oligosporus (3 gr); (P3 Saccharomyces cerevisiae (3 gr) and Rhyzopus oligosporus (1 gr) with 3 replication.  The research results showed that: there was an effect of variation in microbial community on the nutrient content of the Fermented Fish Feed Pellets with Tofu Waste. Treatment P1 gave the highest protein and β -glucan content. Production of fermented fish feed pellets waste-based feed for catfish is the implementation of waste product, which can be further developed to meet the quality of the feed produced.
Effectiveness Test of Duck Mie (Innovation of Noodle-shaped Feed) on Peking Duck Productivity Sukarne Sukarne; Muhammad Nursan
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i2.3429

Abstract

Low feed efficiency is often an obstacle in duck farming business. The morphology of the duck's beak which is only suitable for muddy habitats causes ducks to be often inefficient in consuming feed in the form of mash, crumble or pellet. Thus, duck mie (a noodle-shaped and earthworm-like duck feed) has been innovated which is the natural food for ducks in their natural habitat (rice fields and swamp areas). The main ingredients for making duck mie are cheap and potential local ingredients, such as; golden snail, rice bran, corn flour and cassava flour. The purpose of this study was to determine the extent to which the provision of duck mie in the ration affects the productivity of Peking ducks. The method used in this study was a completely randomized design (CRD) using 4 treatments with 4 replications, the research material in the form of 80 DOD Peking ducks with treatment aged 1-7 days given 100% formulated feed. Age 8-14 days adapted to 95% formulated feed + 5% Duck Mie. Age 15 – 56 days given feed formulated according to treatment T0 = 100% formulated feed, T1 = 90% formulated feed + 10% Duck Mie, T2 = 80% formulated feed + 20% Duck Mie, and T3 = 70% formulated feed + 30 % Duck Mie. The data obtained then analyzed using analysis of variance (ANOVA), then tested using Duncan's Distance Test. The research parameters were feed intake, average daily gain (ADG), feed conversion ratio (FCR) and feed efficiency. Based on the study, it was found that the provision of duck mie in the ration did not show a significant effect (P<0.05) based on consumption, ADG, efficiency and feed conversion ratio of ducks.
Dynamics of Amphibian Community in Kerandangan Nature Reserve Mohammad Liwa Ilhamdi; Muhammad Syazali
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i2.3453

Abstract

Kerandangan Nature Reserve is an area with important ecological aspects in the fields of economy, culture and education. One of its ecological components is amphibians. Previous research was conducted with brief observations so that the data were not sufficient to provide an overview of community fluctuations due to dependent and independent density factors. The study aim is to analyze the dynamics of the amphibian community during the period 2013 - 2019. The field survey was conducted in 3 different years, namely 2013, 2016, and 2019. Analysis of community dynamics was carried out by comparing the composition and species diversity indexes. Whether or not there are differences in the amphibian community is determined by One Way ANOVA. We found that during the period 2013-2019 there was a change in species composition. However, when compared with the results of research in 2011, the species composition is same as the data for 2019. Species richness is relatively stable unless there is a change in data for 2013 and 2016 with the discovery of Ingerophrynus biporcatus and Kaloula baleata so that the species richness increases to 4. The results of the One Way ANOVA test showed that there was no significant difference in diversity (p > 0.05) during the 2013-2019 timeframe.
Daily Activities and Preferences of Macaca fascicularis towards Food Types as The Basis Conservation and Supporting Ecotourism in The Pengsong Mountain M. Yamin; Dadi Setiadi; Khairuddin Khairuddin; Karnan Karnan
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i2.3457

Abstract

The Pengsong tourism area is a mountainous ecotourism area with beautiful natural scenery and attractive biodiversity, including the existence of the Macaca fascicular population. The type of Macaca fascicularis food is not yet known in the tourist area of Mount Pengsong, including carrying capacity of the population. The objectives of study are to determine the types of plants eaten and the types of food provided by visitors as well as the nutritional content of the food consumed by monkeys in the area, and the behaviours of Macaca fascicular as a management basis to support ecotourism in Mount Pengsong. The data collection was conducted using the “broad survey and line transect” method in the morning, afternoon and evening. The food data collected were include sources of food, drink, weathers, temperatures, moistures, slopes, altitude above sea level, and human activities in the vicinity. The behavioral data of Macaca fascicular studied were daily activities, mealtime, playing, resting, breeding, population structure, population disruptors, social patterns (solitary/pairs/groups) and cruising areas. As a result, the monkey diet in the form of plants was available around the tourist area as many as 23 species, 5 types of animals, 10 types of plant production in agricultural areas, and nine types of food provided by visitors. Nutritional needs and elements can be fulfilled from the availability of food sources and will be even more perfect by getting other food sources provided by visitors. Population control is needed so that the number of populations is in accordance with the carrying capacity of food sources. Macaca fascicular consumes a lot of plant species and is highly dependent on the availability of food in its environment, the food provided by visitors is favored by monkeys and provides good nutritional value. The Macaca fascicular population needs to be controlled so that it is in accordance with the carrying capacity of its environment and avoid damaging horticultural crops and plantation plants around the tourist area.

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