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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 43 Documents
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Search results for , issue "Vol. 22 No. 1 (2022): January - March" : 43 Documents clear
The Diversity of Butterflies (Lepidoptera) in the Aik Bukak Tourism Park Area Rizka Yulia Ashari; Moh. Liwa Ilhamdi; Didik Santoso
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.v22i1.2850

Abstract

Butterflies have an important role in human life in various fields such as ecology, economy, aesthetics, and education. The Aik Bukak Tourism Park area is one of the butterfly habitats in Aik Bukak Village, Batu Kliang Utara District, Central Lombok Regency. That aims to determine the diversity of butterflies in the Aik Bukak Tourism Park area. Data collection used a purposive survey method with a sweeping technique following three predetermined observation lines, namely the entrance, the path around the pond, and the forest path. This research was fully recorded 327 individuals member of 23 spesies, 18 genera, and 5 families. The analysis of the butterfly species diversity index used the Shannon-Wienner formula and the diversity index value (HÕ›) was 2.939 which means medium category. The species dominance index was analyzed using the Simpson's species dominance formula and obtained the species dominance index value was 0.059, which means that no species dominates at that location.
Having More Plants at Home During the Covid-19 Pandemic: Is It Just Following A Trend? Whisnu Febry Afrianto; Rindang Diannita
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.v22i1.3245

Abstract

The Covid-19 pandemic has drastically changed the social and environmental conditions. People should stay at home for self-isolation and social distancing to avoid the spread of Covid-19. People tend to have more plants at home associated with psychological impact during self-isolation. This study aimed to describe having more plants during the Covid-19 pandemic in Indonesia. A nationwide cross-sectional survey involving an online survey was carried out of an Indonesian population-based sample of 412 respondents from 26 provinces, considered demographic, social, and behavioral variables. The variable affecting the having plants during the Covid-19 pandemic was analyzed using non-parametric analysis of the Kruskal Wallis test. The result showed that people preferred having more plants during the Covid-19 pandemic to reduce negative emotions and feelings. The majority of the respondents tend to have 1-10 plants and spend around <100 K (IDR) monthly to maintain and buy plants. They think that efforts to maintain were the most challenging in gardening activities. The majority of the respondents had potted plants at home to make their homes greener. The Kruskal Wallis test showed the p-value (>0.05) for all characteristic respondents. Thus, it can be concluded that there was no significant difference regarding the motivation to have planted during the Covid-19 pandemic from characteristic respondents.
The Preference of Trigona sp for pollen various plant species in Kawasan Rumah Pangan Lestari Wardatul Uyun; Karnan Karnan; M. Yamin
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.v22i1.3061

Abstract

Kawasan Rumah Pangan Lesatri (KRPL) is one of the efforts that can be done to manage food security in the face of climate change. The management of the potential contained in KRPL is by applying Trigona sp honey bee cultivation which is integrated with agricultural land. The success of honey bee cultivation is highly dependent on the availability of feed in the environment. This study aims to determine the preferences of pollen collected by Trigona sp at KRPL. This type of research is a qualitative research with Chi square analysis. The research sample was bee pollen contained in 14 stup. The research was conducted from July-November. Data collection was carried out in October and November by making observations at KRPL with an area of 784 meters then making plant reference preparations that have the potential to be Trigona sp pollen feed in KRPL and comparing reference preparations with pollen preparations in Trigona sp stup. The results of the research at KRPL showed that there were 20 types of plant pollen in KRPL. The results of the descriptive analysis with chi square showed that there was a preference for the type of pollen that was fed to Trigona sp bees with a value of x2h > x2t so that H0 was rejected and Ha was accepted.
Benthic Habitat Mapping Using Sentinel-2A Satellite Imagery in Serewe Bay Denianto Yoga Sativa; I Gede Nano Septian; Febrian Kusuma Atmanegara
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.v22i1.3157

Abstract

Serewe Bay is an important area for sustainable fisheries. This information on benthic habitats is important to know for sustainable management. However, at the moment there is no information on the distribution of benthic habitats in Serewe Bay. The research utilizes Sentinel 2A satellite imagery where the image used is obtained through the earthexplorer.usgs.gov website. Image data will be analyzed through several correction analysis processes, namely reflectance correction, sunglint, and water column or Lyzenga in order to obtain an image display that can be used to identify benthic habitats in Serewe Bay. In addition, a field data survey was also carried out to test the accuracy of the results of processing the Sentinel 2A satellite image of Serewe Bay. Image processing results show that there are 3 categories of benthic habitats, namely Seagrass, Sand and Mixed habitats in which there are macroalgae, dead coral, and coral fractures. The results of the field survey and accuracy calculations show that the accuracy of sentinel 2A image processing in Serewe Bay reaches 63.41% with the dominant benthic distribution consisting of seagrass, mixed benthic habitat and sand. Meanwhile, the calculation of the area of important benthic habitats such as seagrass beds in Serewe Bay can reach 156 Ha.
Diversity of Butterfly (Rhopalocera) in The River Flow Area at Taman Hutan Raya Sesaot as an Enrichment of Animal Ecology Practicum Materials Rawindy Aulia Hapsari; Agil Al Idrus; Mohammad Liwa Ilhamdi
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.v22i1.2610

Abstract

The butterfly is one of the insects type that originated from the order of lepidoptera, which having scaly wings. The scales is what gives pattern on the butterflies’ wings. In ecosystems, butterflies serves as a pollinator that helps plants to reproduce. Besides, butterflies like the environment that is close to the river flow. Thus allowing the possibility of butterflies activities in the surrounding area over the river flow at Taman Hutan Raya Sesaot. The research is aimed to identify species of butterflies (suborder Rhopalocera) and to determine the level of diversity of butterflies in the river flow areas at Taman Hutan Raya Sesaot. This research is carried out from January until February 2021 in the river flow area at Taman Hutan Raya Sesaot. Conducted in three points, namely the path of water 1, the path skirting the woods and pathways of water 2. The methods of taking samples of butterflies conducted by purposive survey method. The mechanical technic of taking samples is done by using nets insects. Analysis of butterfly diversity index obtained diversity index (H') and index of dominance (D). Analysis of butterfly diversity index obtained diversity index (H') for all species, namely 2.29 (medium category). Analysis index of dominance obtained index of dominance for the entire species, namely 0.13 (relatively low). Based on the results of the research, the writer found 16 species (164 individuals) that were included into the four families of Papilionidae, Nymphalidae, Pieridae and Lycaenidae.
Potency of Kaliasem Bark (Syzygium polychephalum) Extract as Antibacterial Agent for Staphylococcus aureus Ni Luh Putu Agustini; Desak Putu Risky Vidika Apriyanthi; Ayu Saka Laksmita
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.v22i1.2967

Abstract

Nosocomial infectious diseases are caused by Staphylococcus aureus bacteria. Treatment of infection can use drugs in the form of substances produced by a microorganism in the form of antibiotics. However, the problem that often arises with antibiotics is the occurrence of resistance. Alternatives that are able to overcome the problem of antibiotic resistance against bacteria are plants that have antibacterial activity, one of which is kaliasem (Syzygium polychephalum). This study aims to determine the compounds contained in the ethanol extract of the bark of kaliasem (Syzygium polychephalum) and to determine the potential of its activitiy on the growth of Staphylococcus aureus in vitro. The bark extract of kaliasem (Syzygium polychephalum) had been carried out by using maceration method. Determination of antibacterial activity was carried out by the disc diffusion method. The ethanolic extract of the bark of kaliasem (Syzygium polychephalum) contains antibacterial compounds such as tannins, phenolics, terpenoids, alkaloids and flavonoids and the ethanolic extract of the bark of kaliasem (Syzygium polychephalum) at concentrations of 25%, 50%, 75% and 100% can inhibit growth of Staphylococcus aureus bacteria with an average inhibition zone of 15.85 mm, 18.36 mm, 23.64 mm, 28.58 mm, respectively. Therefore, it can be concluded that the ethanolic extract of the bark of kaliasem (Syzygium polychephalum) contains antibacterial compounds and has the potential to inhibit the growth of Staphylococcus aureus bacteria.
The Potency of Kirinyuh (Chromolaena odorata L.) and Kemangi leaf (Ocimum basilicum) as Biopesticide against Schizophyllum commune Fries Farah Diba; Ulvatur Rochmawati Nauli; Wiwik Winarsih; H A Oramahi
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.v22i1.3023

Abstract

Schizophyllum commune Fries is a wood rot fungus that attacks living trees and wood products which causes high economic losses. The research objective was to evaluate the extracts of kirinyuh (Chromolaena odorata L) and kemangi (Ocimum basilicum L) as a biopesticide to control Schizophyllum commune Fries. The solvents used for extracting the leaves of Kirinyuh and kemangi were 96% ethanol solvent in a ratio of 1: 3 (w/v). The extracts then formed into 2%, 4%, 6%, 8%, and 10% concentration and mixed into PDA medium. The media was poured into a petri dish and then kept in incubator room. Then the isolates of Schizophyllum commune Fries fungus, seven days old with a five mm diameter, were put in the medium center. The parameter test was the value inhibition the fungal growth, comparing control treatment and the given concentration treatment. The results of research showed that kirinyuh leaf extract at a concentration of 2% has strong antifungal values with growth inhibition of 74.25%, at concentration 4%, 6%, 8%, and 10% had a strong antifungal value with growth inhibition of 82.97%; 88.90%; 89.49% and 91.67%. Extracts of kemangi leaf had strong antifungal values (at concentration 2% and 4%) with growth inhibition of 66.63% and 71.72%, while at concentration 6%, 8%, and 10% had a strong antifungal value with inhibition of fungal growth by 81.05%; 83.02%; and 100%. The bioactive compounds found in kemangi leaf extracts were saponins, flavonoids, and linalool which are toxic and kill fungi. Kirinyuh leaf extract has an active alkaloid compound that is toxic and inhibits the formation of fungal cell walls. The optimal concentration of kemangi extract to inhibit the growth of Schizophyllum commune was 6% and from kirinyuh extract was 4%. 
Identification of Diseases and Pests of Cauliflower (Brassica oleracea) in the Pedan Hamlet Plantation, Karanglo, Tawangmangu Fety Fatimah; Hidayatun Nurul Khasanah; Rif'atin Khoirunnisa; Farhah Qurrotu 'Aini; Nur Rokhimah Hanik
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.v22i1.3072

Abstract

Cauliflower (Brassicca oleracia var.brotrytis L.) is a type of vegetable that belongs to the Brassicaceae family (a type of cabbage with small white flowers). The purpose of the research on cauliflower (Brasica oleracea var. Botrytis L.) was to identify pests and diseases that attack cauliflower (Brasica oleracea var. Botrytis L.). The method used in this study was to go directly to the field once in August 2021. Observations were made on agricultural land owned by farmers in Pedan Hamlet, Karanglo Village, Tawangmangu, Karanganyar. The results showed that from three different land samples, different pests and diseases were encountered. In the first land sample, several pests were found such as grasshoppers, capers, spiders, and cauliflower caterpillars (Plutella xylostella) while the diseases that attacked were some cauliflower affected by whip tail disease, but very many cauliflower plants were found that were attacked by black rot and soft. In the second land sample, the most common pests found were capers, third field mop spiders, and the pests encountered were grasshoppers, spiders, capers and caterpillars and cauliflower caterpillars. While the disease that attacks is whiptail disease. In conclusion, the average pests that attack cauliflower plants are capers, spiders, cauliflower caterpillars and grasshoppers. And the common diseases that attack cauliflower plants are black rot, soft rot and whip tail.
Application of Project Based Learning Insect Characteristics Around Lake Tondano in Entomology Course Ferny Margo Tumbel; Yermia Semuel Mokosuli; Meike Paat
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.v22i1.3077

Abstract

The online learning policy was implemented during the COVID-19 pandemic in various countries around the world. Problems arise in learning biology that requires laboratory experiment activities. This research provides an innovation in entomology learning with a project-based learning method using insect biodiversity in the local ecosystem, namely Lake Tondano. This study aims to determine the ability of science process skills and student responses using the project-based learning method. Project-based learning is one of the methods established for the independent learning process to learn the independent curriculum. The research was conducted with an exploratory, descriptive research method. Science process skills and student project products are measured using a rubric. Student learning outcomes are measured using quiz questions with the google form application.Meanwhile, student responses were measured using a questionnaire. The study results showed that the science process skills of students who were taught using the Project-based learning method were in the good and very good categories. The resulting project output is a practical guide based on the assessment rubric which is in good and very good grades. Student responses regarding the application of Project based learning in entomology courses are in the agree and strongly agree categories. Student learning outcomes showed an average in the good and very good categories. The application of project-based learning can stimulate the ability of science processes and student learning outcomes in entomology courses. Project-based learning is very appropriate to be applied to fields of science that require a lot of experimental activities. Because it is carried out in small research groups, the project-based learning method is appropriate for learning during the COVID-19 pandemic.
Microalgae Diversity as a Bioindicator of Water Quality in Batujai Dam, Central Lombok Hairunnadawiah Hairunnadawiah; Khairuddin Khairuddin; Lalu Zulkifli
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.v22i1.3084

Abstract

Batujai Dam is one of the largest dams in Central Lombok with an area of 890 ha of inundated water. The water from the Batujai Dam is used for irrigation of agricultural land, flood control, freshwater fisheries and the development of micro-hydro power plants. Batujai Dam is also a reservoir for several rivers in Central Lombok, namely:  the Leneng River, the Sade River and the Dodokan River. This function makes the Batujai Dam a place for the accumulation of various forms of pollutants carried by the inlet rivers. Microalgae is one of the ecological parameters that can function as a bioindicator of water quality. The purpose of this study was to determine the water quality in the Batujai Dam in terms of the microalgae diversity index and the measurement of environmental factors. Determination of sampling point and sampling time using purposive sampling method. Measurement of water quality is carried out by determining the diversity index and measuring environmental factors such as pH, temperature, DO, BOD, phosphate and nitrate. Microalgae data for determining the diversity index was analyzed using the Microsoft Excel 2010 program. The results showed that the identified microalgae consisted of 5 classes, 16 orders and 40 species. The overall diversity index of microalgae in the Batujai dam is 1.712 with a DO value of 5.09 and a BOD of 4.0175. Based on these data, it can be concluded that the water quality in the Batujai Dam is in an unhealthy condition (lightly polluted). The allotment for the use of water from the Batujai Dam is suitable for freshwater fish farming, livestock and agricultural irrigation, and it is not recommended for drinking water sources and water recreation infrastructure/facilities.

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