cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota mataram,
Nusa tenggara barat
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 2,562 Documents
 27   28   29   30   31 
Density and Spread Pattern of Carnivore Plant (Nepenthes spp.) In The Area of Sebomban Hill Bonti District, Sanggau Ternisius Apriyanto; Rafdinal Rafdinal; Sukal Minsas
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.2839

Abstract

Nepenthes spp. is kind of plant that arranged ecosystem in West Kalimantan, especially in the Sebomban hill area, Sanggau Regency. But, its existence is threatened so that several species are included in the endangered category according to the Convention on International Trade in Endangered Species (CITES). The research aims to determine species, community structure, anddistribution patterns of Nepenthes spp. in the area of Sebomban hill, Bonti District, Sanggau Regency. The research method used purposive samplingand systematic sampling with transect. The results showed that there are 3 types of Nepenthes spp. namely N. ampullaria, N. mirabilis and N, gracilis. The density value of Nepenthes spp. ranged from 10 - 45 individual/ ha. The index of importance value of Nepenthes spp. ranged from 42% - 134%, the highest value being Nepenthes ampullaria in location III, while the lowest value was found in location I, namely N. gracilis. All Nepenthes spp. those found at the research location have a pattern of distribution as clustered.
Diversity of Soil Insect in Kerandangan Ecotourism Nature Park Area West Lombok Island Mery Rosinta; I Putu Artayasa; Mohammad Liwa Ilhamdi
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.2975

Abstract

The role of soil insects is very important as environmental indicator organisms, balancing ecosystems, and helping the process of soil decomposition. This study aims to determine the diversity of soil insects in the Kerandangan Ecotourism Nature Park (ENP) West Lombok. The diversity of flora and fauna that it has makes ENP Kerandangan suitable as an ecotourism area that offers interesting tourist objects as well as educational facilities. Sampling was carried out using the pitfall trap method. Samples were taken at three stations. The first station is in the southern forest of Kerandangan Nature Tourism Park, the second station is in the middle and the third station is in the north forest of Kerandangan Nature Tourism Park. Data were analyzed using the Shannon-Wiener diversity index. The results showed that there were 12 types of insects belonging to 7 orders and 11 families, totaling 595 individuals. Insect species were dominated by insects from the family Carabidae, namely the genus Harpalus as many as 178 individuals. In general, the index value of soil insect species diversity in the Kerandangan TWA forest area is 1.768. The highest species diversity index value was at station 2, namely H'= 1.772. while the lowest is at station 3, namely H'=1.488. In conclusion, the diversity of soil insects in the Kerandangan Nature Tourism Park, West Lombok, varied at each station and in general the level of soil insect diversity in the Kerandangan Nature Tourism Park was categorized as moderate.
Screening of Lactobacillus Inhibitor Alpha Glucosidase Activity from Nira in Hyperglycemic Mice Roushandi Asri Fardhani; Aini Aini
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.2944

Abstract

Hyperglycemia is a condition of increasing blood glucose levels exceeding the normal value in patients with Diabetes mellitus (DM). This study is a screening to describe that respon of hyperglycemic mice to the administration of lactobacillus isolated from sap as an alpha glukosidase inhibitor. The final aim of this study was to measure the activity of alpha glukosidae inhibitor from lactobacillus isolated from sap in hyperglycemic wistar rats.  The cultivation of de man rogosa sharpe Agar (MRSA) and the isolated lactobacillus was carried out using the pout plate methode.Lactobacillus isolated from sap produced in West Lombok district was carried out  given to white rats for treatment. This study is a quasi-experimental study using 25 hyperglycemic white rats divided into 5 (five) treatments. The mean blood sugar levels after alloxan induction were 374.6, 347.5, 373.2, 348.4. The mean blood sugar levels at P1, P2 and P3 respectively from the first day to the third day were P1 247.2, 225.8, 209.6, P2 was 241.2, 141.8, 99.6 and P3 were 138,8, 112, 84.6.
Effect of Check Delay Time Difference on Enumerating Bacteria in Patients with Urinary Tract Infection Inayah Fitri; Zulfikran Moh Rizki Aziz; Devis Ika Widyawati
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.2860

Abstract

Urinary Tract Infection (UTI) is a contamination in the urinary tract is often caused by bacteria. The count of number bacteria must be used in fresh urine. Using postponed urine can cause bacteria in the urine to increase. The purpose of the research was to determine the number of bacteria; severity of UTI based on the number; and the effect of variation in the length of delay in urine examination on the number of bacteria. This research used the purposive sampling method with criteria for patients who did not receive antibiotics treatment. The urine sample was postponed for 1, 2, 3, and 4 hours at room temperature and then scratched in CLED media; after 18 hours of incubation, the number of bacteria is calculating. The results showed based on the One Way ANOVA test known that every postponed variation of examination has an influence on the number of bacteria in the urine, test of post hoc tukey showed that has real different in every postponed variation of examination. The conclusion in this study is that the number of bacteria with time postponed period variation of examination showed that there is increasment increasing ≥105 CFU/ml, the level of severity and postponed examination assessment having influence toward influencing the amount number bacteria.
Ecological valuation of city parks (Case study for Mataram City) Suripto Suripto; Jupri, A.; Farista, B.; Virgota, A.; H. Ahyadi
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.3026

Abstract

City parks, apart from having an aesthetic function as a place for recreation, also have an ecological function with vegetation components to soften the microclimate. Vegetation analysis was carried out in six city parks in Mataram City to determine the vegetation structure. Microclimate factors of the park, namely light intensity, air temperature and humidity inside and outside the park during the day and observations of sound attenuation at night have been carried out. Climatic data is carried out to determine the park's ability to reduce heat and air temperature, increase air humidity and reduce noise and determine the park's environmental discomfort index. Of the six urban parks observed in the city of Mataram, namely the parks of Ampenan, Malomba, Udayana, Sangkareang, Mayura, and Selagalas, it is known that there are three groups of vegetation structures, namely trees-shrubs, shrubs-trees, and shrubs. Vegetation with various compositions of life forms in each city park only controls 40 to 60% of the land area of the park. Urban parks in Mataram City have a low level of ability to soften the microclimate, which is below 5%. In reducing heat and air temperature, and increasing air humidity. City parks are also known to have a low ability to reduce noise. The city parks of Ampenan, Udayana and Sangkareang have an environmental comfort level equivalent to the discomfort felt by more than 50% of the population, while the Malomba, Mayura, and Selagalas parks have a level of comfort equivalent to the discomfort felt by less than 50% of the population. The existence of urban park vegetation is only able to reduce the discomfort index of 7 to 9%.
Optimization of heat shock temperature and time on the transformation of pRGEB32 into Escherichia coli DH5α Rosy Feraningsih Patigu; Putri Wijayanti; Alfino Sebastian; Yekti Asih Purwestri
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.2811

Abstract

Genome editing technique is one of the methods for studying the expression of gene, eliminating unfavorable traits or phenotypes and generating the new characters of species. The pRGEB32 plasmid is one of the vectors that used in genome editing with carrying the Cas9 gene, restriction site of sgRNA (single guide RNA) and specific promoters that can be expressed in plants. The first step in the genome editing process is inserting pRGEB32 into Escherichia coli for propagation. The large size of the plasmid molecule becomes a challenge to determine the right method in the transformation process. This study aims to determine the temperature and time of heat shock transformation of plasmid pRGEB32 into E. coli. The transformation of pRGEB32 into plasmids was carried out with variations in temperature and time, 42℃ (30 seconds and 60 seconds) and 55℃ (30 seconds and 60 seconds). The results showed that a heat shock temperature of 55℃ with a time of 60 seconds was the best temperature for the transformation of pRGEB32 into E. coli. This optimization of heat shock condition will increase the transformation efficiency, which is in the range of 3322-10.989 cfu/µg. 
Vegetative Growth of Green Eggplant Due to Treatment of Vermicompost and NPK Fertilizer Ahmad Raksun; Moh. Liwa Ilhamdi; I Wayan Merta; I Gde Mertha
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.2948

Abstract

Green eggplant is native to the tropics. Green eggplant is one of the most popular vegetable ingredients in Indonesia. The availability of nutrients in the growing media is one of the most determining factors for the growth and yield of green eggplant. Research on vegetative growth of green eggplant due to vermicompost and NPK fertilizer treatment has been carried out from April to August 2021. This study aims to determine: (1) vegetative growth of green eggplant due to vermicompost treatment, (2) green eggplant vegetative growth due to NPK fertilizer treatment, (3) green eggplant vegetative growth due to interaction of vermicompost and NPK fertilizer treatment. This research was conducted in a factorial completely randomized design with three replications. The first factor is the application of NPK fertilizer which consists of 4 levels and the second factor is the treatment of vermicompost which consists of 5 levels. Research data were analyzed using analysis of variance. The results showed: (1) treatment of NPK fertilizer with different doses significantly effected the number of leaves, stem diameter, leaf length, and stem height of green eggplant. The optimum dose of NPK fertilizer was 2 grams for one plant, which produced the number of leaves, diameter stems, leaf length and stem height of green eggplant were better than treatments at other doses. (2) The treatment of vermicompost had a significant effect on the number of leaves, stem diameter, leaf blade length, and stem height of green eggplant, the optimum dose of vermicompost was 1.8 kg  for 1 m2 of agricultural land, resulting in stem diameter, number of leaves, leaf length and green eggplant stem height was better than other treatments (3) the interaction of vermicompost and NPK fertilizer had no significant effect on stem diameter, number of leaves, leaf length and stem height of green eggplant.
The effectiveness of soaking Moringa leaves (Moringa oleifera L) on the internal quality of chicken eggs Gallus gallus domestica Sukarman Hadi Jaya Putra; Sri Sulystyaningsih Natalia Daeng Tiring
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.2957

Abstract

The purpose of this study was to analyze the effectiveness of soaking eggs using a solution of Moringa leaves for 24 hours on the internal quality of broiler eggs. Soaking aims to provide a layer on the pores of the egg shell so that it can keep the eggs from microbes and inhibit the release of gas from the egg. This type of research is experimental with Completely Randomized Design (CRD). The number of eggs used is 1000 eggs. The egg samples used are 420 eggs. The eggs used are in good condition, namely brown eggs, clean, intact, not cracked, texture smooth and oval in shape. The randomization method used random sampling in the form of a lottery system. Each of the 420 eggs is labeled. The eggs that were taken at random were divided into 4 treatment groups. Each treatment group consisted of 5 replications. Therefore, 20 treatment replications were obtained. Measurement of storage time and internal quality of eggs will be tested for 21 days. This is done to determine the level of egg resistance accurately, because the embryonic development period of the egg occurs for 21 days. Egg parameter measurements were carried out every day, at 08.00 WITA. Egg quality parameters were taken every 7 days. Egg quality parameters analyzed were egg white index, egg yolk index, and egg weight loss. All measurement data were analyzed by analysis of variance (ANOVA). If the results of the analysis have an effect, the Tukey test is continued with 95% confidence (α> 0.05). The data that has been analyzed explains that chicken eggs that get soaked in a solution of Moringa leaves have a higher index of egg yolk and egg white than eggs that are not soaked in a solution of Moringa leaves. The most optimal concentrations in maintaining the egg yolk and egg white index are 30% and 45% Therefore, soaking eggs with Moringa leaves serves to maintain the internal quality of eggs seen from the yolk index and egg white index.
Hormone Synchronization and Artificial Insemination as Breeding Efforts of Philemon buceroides to Prevent their Extinction M. Yamin
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.2906

Abstract

Philemon buceroides is a bird that is very difficult to breed in captivity. This paper escribes the breeding efforts that have been carried out. The aims of the study are for knowing how to breed it in captivity and as a suggestion for conservation efforts in-situ and ex-situ. Efforts of breeding Philemon buceroides are conducted by supplying the Pregnant Mare Serum Godadotrophin (PMSG) hormone and the Estrogen hormone and artificial insemination for birds that are sexually mature at least one year old and physically healthy. The sample of Philemon buceroides in this study is birds that have been reared for at least 1 year to reduce stress. The sample of Philemon buceroides were acclimatized for 7 days in each bird cage according to the group. On the following day, the treatment group was superovulated to obtain more eggs than normal using PMSG hormone at a dose of 150 Im in 10 milli liters of ferologic Nacl / Kg BW once a day for three consecutive days. The control group was only given 10 milli liters of ferologic NaCl orally. The next day, synchronization of lust / Esterus was conducted using the Estrogen hormone at a dose of 150 Im in 10 milli liters of ferological NaCl orally once a day for three consecutive days. For male Philemon buceroides, sperm was collected. As a result, synchronization of the reproductive hormones of Pregnant Mare Serum Gonadotrophin (PMSG) and Estrogen to male and female Philemon buceroides greatly influenced the increase in ovulation of Philemon buceroides, however the eggs produced by the mother Philemon buceroides have not yet produced chicks. In addition, it is difficult to obtain the male sperm. From the three males, only one sperm pull out only 1 drop, the other two did not pull out any sperm.
Suitability of Egg-laying Habitat and Its Relationship with the Number of Green Turtles (Chelonia mydas) that landed on Pangumbahan Beach Sukabumi Riska Rismawati; Diana Hernawati; Diki Muhamad Chaidir
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - Desember
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.v21i3.2844

Abstract

During the nesting season, green turtles have an instinct to return to their original place to lay their eggs. The success of turtle egg laying is influenced by the suitability of the beach for their nesting habitat which consists of physical and biological factors. The purpose of this study was to determine the suitability of the physical and biological factors of green turtle nesting habitat and its relationship to the number of green turtles landed at each station. The research method used is observation, the observation station is determined by purposive sampling, and the data analysis technique used is quantitative. The result is that physical and biological factors consisting of beach width and slope, sand texture and temperature, and vegetation at each landing station on Pangumbahan beach are still suitable as green turtle nesting sites except station 6. There were 47 green turtles that landed, and station 2 has the highest number of turtles landing, which is 16 turtles. Meanwhile, at station 6, no turtles landed. From the results of the correlation analysis, the beach slope factor and the vegetation density factor have a very strong and significant relationship with the number of turtles that landed. As for the other factors have a fairly - strong relationship. The conclusion is that all factors, both physical and biological factors from the beach, affect the number of green turtles that land, as evidenced by the relationship between the two variables.

Page 29 of 257 | Total Record : 2562

 27   28   29   30   31 

Filter by Year

2013 2026


Reset
Filter By Issues
All Issue Vol. 26 No. 1 (2026): Januari-Maret Vol. 25 No. 4 (2025): Oktober-Desember Vol. 25 No. 4b (2025): Special Issue Vol. 25 No. 4a (2025): Special Issue Vol. 25 No. 3 (2025): Juli-September Vol. 25 No. 2 (2025): April-Juni Vol. 25 No. 1 (2025): Januari - Maret Vol. 24 No. 4 (2024): Oktober - Desember Vol. 24 No. 3 (2024): July - September Vol. 24 No. 2b (2024): Special Issue Vol. 24 No. 2 (2024): April - Juni Vol. 24 No. 1 (2024): Januari - Maret Vol. 24 No. 1b (2024): Special Issue Vol. 23 No. 4 (2023): October - December Vol. 23 No. 3 (2023): July - September Vol. 23 No. 2 (2023): April-June Vol. 23 No. 2 (2023): Special Issue Vol. 23 No. 1 (2023): Special Issue Vol. 23 No. 1 (2023): January - March Vol. 22 No. 4 (2022): October - December Vol. 22 No. 3 (2022): July - September Vol. 22 No. 2 (2022): April - June Vol. 22 No. 1 (2022): January - March Vol. 21 No. 3 (2021): September - Desember Vol. 21 No. 2 (2021): Mei - Agustus Vol. 21 No. 1 (2021): Januari - April Vol. 20 No. 3 (2020): September - Desember Vol. 20 No. 2 (2020): Mei - Agustus Vol. 20 No. 1 (2020): Januari - April Vol. 19 No. 2 (2019): Juli - Desember Vol. 19 No. 1 (2019): Januari - Juni Vol. 18 No. 2 (2018): Juli - Desember Vol. 18 No. 1 (2018): Januari - Juni Jurnal Biologi Tropis vol.17 No.2 Desember 2017 Jurnal Biologi Tropis vol.17 No.1 Juni 2017 Jurnal Biologi Tropis. Vol.16 No.2 Desember 2016 Jurnal Biologi Tropis. Vol.16 No. 1 Juni 2016 Jurnal Biologi Tropis. Vol.15 no.2 Desember 2015 Jurnal Biologi Tropis. Vol.15 No. 1 Juni 2015 Jurnal Biologi Tropis. Vol.14 No. 2 Desember 2014 Jurnal Biologi Tropis. Vol.14 No. 1 Juni 2014 Jurnal Biologi Tropis. Vol.13 No. 2 Desember 2013 Jurnal Biologi Tropis. Vol.13 No.1 Juni 2013 More Issue