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INDONESIA
Jurnal Biologi Universitas Andalas
Published by Universitas Andalas
ISSN : -     EISSN : 23032162     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 295 Documents
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Komunitas Burung Berdasarkan Zonasi Ketinggian di Gunung Singgalang, Sumatera Barat Nova Adri Yanti; Wilson Novarino; Rizaldi Rizaldi
Jurnal Biologi Universitas Andalas Vol 4, No 1 (2015)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.4.1.%p.2015

Abstract

Study on bird community based on altitudinal zonation of Singgalang Mountain, West Sumatra was conducted in January 2014. This study aimed to describe community structure the bird from lower to higher elevation of the mountain. This study used point count method along a survey routes from 1300 to 2700 m asl, which is divided into three zones (Zone I: 1300 - 1800 m asl, Zone II: 1800 - 2200 m asl and Zone III: 2200 - 2700 m asl). This study recorded 216 individuals of 38 bird species to 21 families and 9 orders. The highest species diversity and richness was in Zone II. Zone III had low richness and low species diversity but the presence of bird is more evenly distributed. Most of the endemic bird species at Mount Singgalang was found at Zone I (1300 to 2300 m asl). Species richness decreases along increasing the altitudinal zonation of Singgalang Mountain.Key Words : Altitudinal zonation, community, bird, Singgalang Mountain
Callus Induction of Aerides odorata Lour. by Adding 2,4 Dichlorophenoxyacetic Acid (2,4-D) Azharia Khalida; Suwirmen Suwirmen; Zozy Aneloi Noli
Jurnal Biologi Universitas Andalas Vol 7, No 2 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.2.109-117.2019

Abstract

The research about callus induction of Aerides odorata L. by adding 2,4 Dichlorophenoxyacetic Acid (2,4-D), has been done from August to October 2018 in Plant Physiology and Tissue Culture Laboratory, Department of Biology, Faculty of Mathematics and Natural Science, Andalas University, Padang. The aim of this research was found the effective consentration of 2,4-D to induce somatic embryo of A.odorata. The research used Completely Randomized Design (CRD) with 5 treatments and 6 replications. The treatments were: 0 mg/L 2,4-D; 0,25 mg/L 2,4-D; 0,5 mg/L 2,4-D; 0,75 mg/L 2,4-D; 1 mg/L 2,4-D. The result showed that the treatmeant were able induction callus of A.odorata, with compact until the friable texture, color of the resulting callus is yellowish green and greenish yellow. 2,4-D 1 mg/L was the best concentration to increase fresh weight of callus.
In Vitro Response of Protocorm Grammatophyllum stapeliiflorum (Teijsm. & Binn.) J.J.Sm. Orchid in Growth on Several Media Composition Ranny Wirmasari; Mayta Novaliza Isda
Jurnal Biologi Universitas Andalas Vol 7, No 2 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.2.118-125.2019

Abstract

Family Orchidaceae has about 800 genera which are already difficult to find and almost extinct, including the orchid genus Grammatophyllum. A species of rare orchids, Grammatophyllum stapeliiflorum, is hard to find in original habitat. The addition of Growmore, BAP and 15% coconut water is expected to increase the growth and development of the G. stapeliiflorum orchid protocorms. This study use a Completely Randomized Design, consisting of 6 treatments (control, 1 and 3 mg/l BAP, 1 and 3 g/l Growmore, and 150 ml/l coconut water) in MS media with 5 replicates with observation for 4 weeks after planting. The results showed did not differ markedly in the number of protocorms, number of shoots and number of browning protocorms, but differ markedly in the parameter protocorm color based on DMRT test. Treatment of 3 mg/l BAP gives the best results on the number of shoots 2,60 protocorms and number of browning protocormss at the least amount 0,80 protocorms. The number of protocorms most widely on the treatment of 1 g/l Growmore 14,40 protocorms. Protocorms color is best found in 3 g/l Growmore with green color. This research managed to multiply the number of protocorms and induces protocorms shoots from Grammatophyllum stapeliiflorum orchid.
Komposisi dan Struktur Seedling dan Sapling pada Lahan Pra dan Pasca Tambang Batubara PT. SLN di Kabupaten Dharmasraya - Solviana; Erizal Mukhtar; - Chairul
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

Abstract

Research about composition and structure seedling and sapling at pre and post coal mining PT. SLN have been carried out from April to July 2012 by using the belt transect with quadrate plot of size 10 x 10 m2. The results showed the composition of seedling at pre-mining was 6 families, 6 genera, 6 species and 38 individuals. In case of the composition of post coal mining was 4 families, 3 genera, 5 species and 20 individuals. Furthermore, the composition of sapling at pre coal mining was 12 families, 35 genera, 43 species and 304 individuals. In case of the composition of post coal mining was 6 families, 8 genera, 10 species and 102 individuals. The highest importance value for seedling at pre mining was Canthium dicoccum (47.37 %) and at post mining was Clibadium surinamense (58.18 %). The highest importance value for sapling at pre mining was Hevea brasiliensis (20.27 %) and at post mining was Macaranga tanarius (46.11 %). Diversity index of seedling at pre mining was 1.69 % and in post-mining was 1.55 %, where as for the sapling at pre mining was 3.51 % and at post mining was 2.16%. Index similarity seedling and sapling were 18 % and 3.8 % respectively.Keyword:composition, structure, pre and post coal mining, seedling, sapling
Species Diversity of Earthworm in the Field of Biology Gadjah Mada University Sita Ratnawati; Niken Satuti Nur Handayani; Trijoko Trijoko
Jurnal Biologi Universitas Andalas Vol 7, No 2 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.2.126-135.2019

Abstract

The Earthworms are one of the invertebrate species which hasn’t backbone. The Earthworm has lived in a few habitats, for example in the humid of forest ground with the high density of cover canopy. Field of Biology UGM is an artificial forest and has a high density of cover canopy  and this condition can supported the living habitat of earthworms. The aim of this research were investigated species diversity of earthworm in the field of Biology UGM.. Sampling method was carried out with purposive random sampling method. Result obtained that the earthworms in the field Biology of UGM consist of three species. The Three species were Pheretima hawayana, Pheretima sp., and Eudrilus eugeniae. Data analysis was used UPGMA method by 3.1 MVSP Program and obtained that generally, similarity percentage of P. hawayana, Pheretima sp., dan E. eugeniae interspecies more than 55 %. Whereas similarity percentage of P. hawayana and  Pheretima sp. more than 85 %.
Inventarisasi Mamalia di Hutan Harapan Sumatera Selatan Boby Hariadi; Wilson Novarino; - Rizaldi
Jurnal Biologi Universitas Andalas Vol 1, No 2 (2012)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.1.2.%p.2012

Abstract

An inventory of mamalian species in restoration forest at The Harapan Rainforest, South Sumatra was conducted from March to June 2012. The animals were photograped using camera traps, personal encounters as well as indirect observations through foot prints, scratches, excavations, feces, and calls. This study has documented 23 species of mammals which belong to 15 families and 7 orders. From a total of 412 identified photograps, it was known that wild boars (Sus scrofa) were the most frequently photographed (89 images) while leopard (Prinailurus bengalensis) and Marbled cat (Pardofelis marmorata) were only photograped once for each species. We described each species by comparing to some references and discussed their implications for conservation.Keywords: mamalian species, camera traps, forest restoration
Effects of Chlorella sp. Additions on the Changes of Visceral Mass and Proximate Contents of Shellfish Clara Dhisa Sumunaring Ratna; Trijoko Trijoko
Jurnal Biologi Universitas Andalas Vol 7, No 2 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.2.79-90.2019

Abstract

Shellfish, called as kerang in Indonesia, contains animal protein that’s popular, making it as and important fisheries and marine commodity. Supported by the good taste and high nutrient content in it. Paphia undulata or Kerang  Batik, Peryglipta reticulata or Kerang Kemiri, Meretrix meretrix or Kerang Tahu, and Codakia tigerina or Kerang Madu, are consumption shells from northern coast of Java. To improve the quality of shellfish, Chlorella added as shellfish food preferences. It supported by the high nutrient content in Chlorella sp. Shellfish kept for 15 days in a basket with a sand substrate and drainage from sea. Therefore, the water quality had been controlled for the changed of salinity and water temperature. Parameters used to see the improvement shellfish quality is the color changes on visceral mass and the changes of proximate content (moisture, protein, fat, carbohydrate and ash). This study proves the color changes on visceral mass and proximate content. The color change occurs on the visceral mass and the gills. The changes of viscerall mass occurs on kerang batik from white greyish to yellow while the more clearly gills occurs on kerang madu and kemiri. Meanwhile, the change of proximate shown by the increasing of protein and moisture on all the spesies while on the otherside the decreasing of carbohydrate and ash, but the increasing of fat only occurs on kerang batik and kerang madu. The higher proximate changes occur on kerang madu, where the ammount of moisture at 71,43 ± 0,03 %, the protein at 16,55 ± 0,02 %, the fat at 1,35 ± 0,04 %, the carbohydrate at 2,9 ± 0,03 %, and the ash at 8,09 ± 0,04 %. The conclusion of this research are kerang madu has the higher positive influences by addition of Chlorella, shown by the increasing of proximate contents and the clearly of gills. Keywords : addision of Chlorella sp., changes of visceral mass, proximate, shellfish
The Growth of Shoot Cutting of Ant-nest Plant (Myrmecodia pendens Merr. & L.M. Perry) that Planted in Various Planting Medium Suci Rahmadani Putri; Suwirmen Suwirmen; Zozy Aneloi Noli
Jurnal Biologi Universitas Andalas Vol 7, No 2 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.2.91-99.2019

Abstract

The research about The Growth of Shoot Cutting of Ant-nest Plant (Myrmecodia pendens Merr. & L.M. Perry) that Planted in various planting medium was held from May until August 2018 in Greenhouse and Plant Physiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Science, Andalas University, Padang. The aim of this research was to find out the effects of various planting medium to the growth of shoot cutting Ant-nest Plant. This research used Completely Randomized Design (CRD) with five treatments (sand, husk charcoal, media moss, coconut fiber and fern’s root) and six replications. The results showed that shoot cutting that planted in sand, husk charcoal and fern had a highest life percentage (100%). Shoot cutting that planted in coconut fiber showed a highest height accretion. Shoot cutting that planted in media moss showed the highest root amount, longest root length and containing clorophyl level.
Spatial Spread of Invasive Foreign Plants Clidemia hirta (L.) D. Don in Bung Hatta Forest Park, Padang, West Sumatra Rian Anggraini; Solfiyeni Solfiyeni
Jurnal Biologi Universitas Andalas Vol 7, No 2 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.2.136-141.2019

Abstract

Research on Spatial Spread of Invasive Foreign Plants Clidemia hirta in Bung Hatta Forest Park, Padang, West Sumatra, has been carried out from January to June 2018. The purpose of this study was to determine the spatial distribution pattern of invasive foreign plants Clidemia hirta and analyze the influence of distance from roads and influence light intensity on the distribution of the number of individuals Clidemia hirta in the Bung Hatta Forest Park. This study uses a belt transect method with a width of 2 meters along 250 meters. Along the transect, a plot of 2x2 meters was made with 125 plots. Observations made on Clidemia hirta is to calculate the number of individuals and measure the intensity of light in each plot. The results showed that the pattern of spread of  Clidemia hirta was grouped with the Morisita Index of 2.1. The distance from the road and the intensity of light does not affect the distribution of the number of individuals with R Square values of 0.022 and 0.007, respectively.
Antibacterial potency of fresh extract leaves of jamaican cherry (Muntingia calabura L.) in Inhibiting the growth of Shigella dysenteriae. Ikel Fitri Yanis; Feskaharny Alamsjah; Anthoni Agustien; Tesri Maideliza
Jurnal Biologi Universitas Andalas Vol 8, No 1 (2020)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.8.1.14-19.2020

Abstract

Research on the antibacterial potency of fresh extract from leaves of Jamaican cherry (Muntingia calabura L.) in inhibiting the growth of Shigella dysenteriae had been conducted in the Microbiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University. The study aimed to determine the potential of fresh extract from  Jamaican cherry leaves in inhibiting the growth of S. dysenteriae and to determine its Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) against S. dysenteriae. The results showed that the fresh extract of Jamaican cherry leaves was potent as an antimicrobial agent against pathogenic bacteria S. dysenteriae. It was shown through 12 - 14 mm diameter of inhibition zone which was classified as strong inhibition. The MIC was measured at 3.125% while MBC was undetermined. According to these findings, it can be concluded that the fresh extract from Jamaican cherry leaves was potent to inhibit the growth of S.dysentriae at 3.125% concentration, yet unable to kill it.

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