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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 6 Documents
 1 
Search results for , issue "Vol 5, No 1 (2017)" : 6 Documents clear
Respon Berbagai Sumber Bahan Stek terhadap Kemampuan Berakar Stek Alstonia scholaris (L) R. Br. sebagai Upaya Penyediaan Bibit untuk Lahan Terdegradasi Kiki Ayunda Putri; Suwirmen Suwirmen; Zozy Aneloi Noli
Jurnal Biologi Universitas Andalas Vol 5, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.5.1.1-5.2017

Abstract

The research about  the respon  of the material cuttings retrieval on rooting ability of  Alstonia scholaris (L.) R. Br. Cuttings  in an effort provision of seeds for Degraded lands ,  conducted from October until December 2015 at Physiology Plant Laboratorium of Biology Department, Mathematics and Natural Science Faculty of Andalas University, Padang. The aim of this research to found the best  material cuttings on A. scholaris. This research used Completely Randomized Design (CRD) method. The treatments were the basal (A), the middle (B), and the apical (C). The results showed that the apical was the best material cuttings, with a average number of roots (3.967), and the average of root dry weights (0.832)g. The conclusion of this research is the that material cuttings of apical is the bst one for Pulai cutting.
Komunitas Makrozoobentos di Sungai Gua Pintu Ngalau pada Kawasan Karst di Sumatera Barat Husnul Mar’i; Izmiarti Izmiarti; Nofrita Nofrita
Jurnal Biologi Universitas Andalas Vol 5, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.5.1.41-49.2017

Abstract

Pintu Ngalau cave is flowed by river from irrigated rice fields that flows into the cave. This cave has a source of organic matter derived from bats and swallow dirts, litter that falls on enterance of the cave and the organic material carried by the flow of the river. The study on the macrozoobenthos communities of river in Pintu Ngalau Cave has been conducted from October until November 2016. The study used survey method, where stratified random sampling was applied in three zones (light zone, dim zone and dark zone) at study site. Macrozoobenthos samples was collected by surber net. This study also measured the physic-chemical of water. The results showed the composition of macrozoobenthos in the Pintu Ngalau cave river consisted of 43 genera i.e Gastropods (2 genera), Hirudinea (2 genera), Insects (36 genera) and Oligochaetas (3 genera). Total density of macrozoobenthos in this site was 2100 ind/m2 and the highest density was found in dark zone. The highest total relative density (KR total=79,89%) on genus level at every zone was Hydropsyche. Diversity index of macrozoobenthos was classified as medium (H'=2.68) with evenness distribution was evenly (E=0.61) and no dominant genus (C=0.14). The existence of macrozoobenthos was not influenced by light intensity, but instead was more influence by the condition of the substrate and the flow of water in the cave.
Upaya Penggunaan Metode Telemetri untuk Penelitian Berang-Berang Cakar Kecil (Aonyx cinereus) di Area Persawahan Mahfud Huda; Jabang Nurdin; Wilson Novarino; Hanif Fadly; Aadrean Aadrean
Jurnal Biologi Universitas Andalas Vol 5, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.5.1.6-15.2017

Abstract

Currently, telemetry appeared as a common method to reveal home range and movement of animal. However, the telemetry method was not applied for small-clawed otter yet. We have spent efforts to use the telemetry methods from March to August 2016 in a rice field landscape in Lubuk Alung district, Padang Pariaman regency, West Sumatra. We trapped individuals of small-clawed otters (Aonyx cinereus) using leg-hold traps and box traps. We implanted radio transmitter intraperitoneally. Movement of the animal was recorded using triangulation methods. Two male individuals of small-clawed otters were captured. One individual died soon after the transmitter implantation and another individual was successfully implanted and released. However the individual were detected for 28 hours only. In this paper, we described the efforts and problems appeared from the trapping, transmitter implantation, releasing and radio tracking process.
Komunitas Collembola pada Hutan Konservasi dan Perkebunan Sawit di Kawasan PT. Tidar Kerinci Agung (TKA), Sumatera Barat Rina Oktavianti; Jabang Nurdin; Henny Herwina
Jurnal Biologi Universitas Andalas Vol 5, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.5.1.16-24.2017

Abstract

The research about composition and structure of Collembola community was conducted at TKA company area, west Sumatra. Collembola were collected at oil palm plantation, conservasion forest and forest edge sites (between conservation forest and plantation area) by survey method with systematic random sampling for collembolla in litter and soil. A total of four Collembola species that belonging to 2 orders, 3 families, 4 genera and 57 individuals was collected. The density of Collembola in litter at conservation forest site was higher than density of Collembola at oil palm plantation site meanwhile the density of Collembola in soil at conservation forest site was higher than density of Collembola in the soil at palm plantation site. Relative density of Isotomiella sp. in litter at oil palm plantation site (100%) was higher than relative density of Folsomides sp. at conservation forest site (5,5%) as well as in the soil. The highest diversity index of Collembola was found in litter of conservation forest (1,18). The highest similarity index was found between conservation forest and forest edge (85,71%) meanwhile the lowest similarity index was found between conservation forest and oil palm plantation (40%).
Karakterisasi Morfologi Populasi Etlingera elatior (Jack) R.M.Sm. (Zingiberaceae) di Sumatera Barat Zola Anjelia Putri; Nurainas Nurainas; Syamsuardi Syamsuardi
Jurnal Biologi Universitas Andalas Vol 5, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.5.1.25-33.2017

Abstract

Research about morphological characterization of Etlingera elatior  (Jack) R.M.Sm. (Zingiberaceae) was conducted from August to December 2016 in West Sumatra regions (Kepulauan Mentawai, Solok, and Padang Pariaman) and Padang city. Etlingera elatior has been used as traditional medicines for several diseases. Etlingera elatior was used for the treatment of various diseases. Effectivityof this plant depend on the preciseus in of the determinating variants type. The aim of this research was analyzed morphological variation among populations of Etlingera elatior. Survey and direct sampling method were used and continued by measurement of morphological characters of Etlingera elatior. Classification analyzed by cluster analysis with PAST program. Based on differentiation of the bract color of flowers, four variants of Etlingera elatior in West Sumatra were clarified those were 'red', 'pink', 'pale pink', and 'white' variant. The result of cluster analysis of 53 individuals Etlingera elatior indicated that many of 'white' and the 'red' variant were clustered in the same main cluster and individuals of 'pale pink' variant mostly clustered to 'red' variant and some of them were existed in the 'pink’ variant.
Diversitas Gastropoda pada Akar Mangrove di Pulau Sirandah, Padang, Sumatera Barat Hirzan Riyandi; Indra Junaidi Zakaria; Izmiarti Izmiarti
Jurnal Biologi Universitas Andalas Vol 5, No 1 (2017)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.5.1.34-40.2017

Abstract

Currently, there are a lot of activities in Sirandah Island, such as tourism activities and deforestation to support the activities. Mangrove forest distruction makes a useable area might have negative effect to mangrove ecosystem itself or mollusc community. This research was conducted on mangrove roots area from February until October 2016. The aim of this research is to know the diversity of Gastropods on the roots of the mangrove. This research was conducted using survey method and purposive sampling method to collecting data. We recorded 8 genera of Gastropods belong to 8 families, named Cerithium, Conus, Ellobium, Littorina, Melongena, Nerita, Cymatium and Turbo. The highest abundance was found in the genus of  Littorina with 59.33 individuals/tree. Based on location, abundance ranged from 4.33-60.33 individuals/tree with the highest abundance on mangrove roots of Barringtonia asiatica. Diversity indices of Gastropods on mangrove roots in Sirandah Island ranged from 0.77 to 1.42 which is relative low range.

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