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Komposisi Kumbang (Coleoptera) Permukaan Tanah di Perkebunan Kelapa Sawit (Elaeis guineensis Jacq.) Rakyat Kanagarian Kunangan Parik Rantang Kabupaten Sijunjung Risdawati, Fauzia; Dahelmi, Dahelmi; Zeswita, Armein Lusi
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
Publisher : STKIP PGRI Sumbar

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ABSTRACT Beetles (Coleoptera) act as a biological pest control and as recast organic matter in the forest. Changes in forest conditions in Kanagarian Kunangan Parik Rantang into oil palm plantation area is expected to affect the people of the land surface of the animals. This study aims to determine the composition of beetles (Coleoptera) in the soil surface oil of palm (Elaeis guineensis Jacq.) (Station I) and forest around the oil palm plantations of the people (Station II). This study was carried out from May to April 2013 and sampling was conducted on 12 untill 15 March 2013. Sampling was done by using pitfall traps (total of 50 pitfall traps) at both stations. The results showed that 13 genera that belong to 11 families  were found. At station II was found 12 genera and 9 families. Climatic factors and physical- chemistry at the station I and station II were measured where air temperature ranged from29.080C-31.330C, soil temperature (230C-240C), air humidity ranged from  53.17%-59.83%, soil pH from 6.6-6.7, soil moisture content from 30.45%-39.45%, and soil organic carbon content was 6.49%-7.50%. Spearman correlation analysis showed that there are differences in the composition of the genera of beetles (Coleoptera) ground level between the two stations. 
Jenis-Jenis Capung (Odonata) di Persawahan Masyarakat Rimbo Tarok Kelurahan Gunung Sarik Kecamatan Kuranji Padang Saputri, Dilla; Dahelmi, Dahelmi; Safitri, Elza
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
Publisher : STKIP PGRI Sumbar

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ABSTRACT             Dragonfly (Odonata) is an insect groups that has medium size to large size, attractive color and it is depended on the waters areas such as in paddy field. The purpose of this study is to know the species of dragonflies found in the paddy fields of Rimbo Tarok of Gunung Sarik Village of Kuranji District, Padang. The samples were collected by using the insect net in morning and evening at three locations: the fields, marshes, and ponds. In this study, four species of dragonflies were found. These are Orthetrum sabina, Crocothemis servilia, Pantala flavescens (belong to Libellulidae family), and Agriocnemis femina (Agriocnidae family). 
KOMPOSISI KUMBANG TINJA (DUNG BEETLES) DI PERKEBUNAN KELAPA SAWIT (Elaeis guineensis Jacq.) RAKYAT DI KANAGARIAN KUNANGAN PARIK RANTANG KABUPATEN SIJUNJUNG Wati, Tri Ambar; Dahelmi, Dahelmi; Indriati, Gustina
Pendidikan Biologi Vol 2, No 2 (2013): Jurnal Mahasiswa Pendidikan Biologi Genap 2013-2014
Publisher : STKIP PGRI Sumbar

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ABSTRACT Dung Beetles is group member of Coleoptera that known as Scarab beetles. Dung Beetles have important role in ecosystem as biological control. This study was conducted from   March to May 2013 at Oil Palm   Plantation, Parik Rantang, Sijunjung District. The aim of this study is to know dung beetles composition and abiotic factor in Oil Palm Plantation (Elaeis guineensis Jacq.). This study was done by using Pitfall Traps/ Dung Traps method. In this study, four species of dung beetle that belonging to one genus (Onthophagus) and one   subfamily (Scarabaeineae). The number of dung beetle was high in  Onthophagus seniculus (280 individuals) and low in Onthophagus australis (5 individuals). Mean density relative and relative frequency were higher in    Onthophagus seniculus (67,4% and 37,2%) and which lower is Onthophagus australis (1,6% and 7,4%). Soiltemperature, air temperature, soil water content and air humidity were 23,90C,23,4% and 55,3%, respectively.  
Karakterisasi Morfologi Ikan Bujuk (Channa lucius) pada Perairan Danau Singkarak Sumatera Barat, Rawa Banjiran Tanjung Jabung Timur Jambi dan Rawa Banjiran Kampar Riau Azrita, Azrita; Syandri, Hafrijal; Dahelmi, Dahelmi; Syaifullah, Syaifullah; Nugroho, Estu
Jurnal Natur Indonesia Vol 15, No 1 (2013)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

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Abstract

Overfishing, the use of unfriendly-environmental fishing gears, changes of environmental water conditions and diversity of habitats are threaten the continuity of Bujuk fish (Channa lucius) and generate the morphologycal diversity. Consequently, appropriate conservation efforts are needed to preserve the fish. The first phase of these efforts were done through morphological approach. The research was held in 2010 in Singkarak Lake West Sumatera Province, in floodplain, Pematang sub-district Lindung Mendahara Ulu Regency East Tanjung Jabung, Province of Jambi, and in floodplain Mentulik Regency Kampar Kiri Hilir Riau Province. The aims of the research were to analyze the morphological characteristic of the fish with Principal Component Analysis (PCA) and to determine the range of similarity between populations of the fish. Determination of the location of fish sampling was conducted by proposive sampling in which there were 30 samples for every research location. The measurement of the specimen was done by digital calipers on the left of the body, at 4 meristic characters and 19 morphometric characters. The data obtained were analyzed by One Way ANOVA and principal component analysis using Statistical software version 13. The results showed that based on the analysis of morphological characteristics of bujuk fish, populations that exist in Lake Singkarak were different from those of Pematang Lindung floodplain sub-district Mendahara Ulu Regency East Tanjung Jabung Jambi Province and Mentulik Regency floodplain Kampar Kiri Hilir Province Riau. The meristic difference was on the number of scales along the lateral line with a value of 0.783. While the main difference on morphometric characters were the snout length with a value of 0.848, and length of upper jaw with a value of 0.847. Thus, the study showed that the fish was isolated geographically into two groups, which were Jambi-Riau population and Singkarak Lake population.
SEMUT SUBFAMILY MYRMICINAE DI CAGAR ALAM RIMBO PANTI, KABUPATEN PASAMAN, SUMATERA BARAT Hilmi, Larissa; Herwina, Henny; Dahelmi, Dahelmi
Natural Science: Journal of Science and Technology Vol 4, No 2 (2015): Volume 4 Number 2 (August 2015)
Publisher : Univ. Tadulako

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Penelitian mengenai jenis-jenis semut Myrmicinae (Hymenoptera: Formicidae) di Cagar Alam Rimbo Panti, Kabupaten Pasaman, Sumatera Barat  telah dilakukan pada bulan Maret sampai Agustus 2014 dengan menggunakan metode ?quadra protocol? yang merupakan kombinasi empat metode yaitu free collection, leaf litter sampling, soil sampling, honey bait. Sebanyak 10 species and 15 morphospecies semut yang tergolong kedalam 13 genus, 9 tribe, dan 816 individu telah didapatkan. Genus yang paling banyak yaitu Pheidole (11 species).
JENIS-JENIS RAYAP (ISOPTERA) PADA KAWASAN CAGAR ALAM LEMBAH ANAI KABUPATEN TANAH DATAR SUMATERA BARAT Ningsih, Deffi Surya; Dahelmi, Dahelmi; Rahayu, Resti
Natural Science: Journal of Science and Technology Vol 4, No 2 (2015): Volume 4 Number 2 (August 2015)
Publisher : Univ. Tadulako

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Rayap merupakan serangga sosial pemakan selulosa yang berfungsi sebagai indikator perubahan lingkungan. Serangga ini hidup pada kayu kering, kayu lembab dan tanah. Tujuan penelitian ini untuk mengetahui jenis-jenis rayap yang terdapat pada Kawasan Cagar Alam Lembah Anai di Kabupaten Tanah Datar. Penelitian dilakukan mulai bulan Mei sampai September 2014 dengan menggunakan metode survey sepanjang jalur pendakian pada ketinggian 400-580 m dpl. Empat belas jenis rayap yang tergolong pada dua famili telah didapatkan yaitu Macrotermes malaccensis Haviland, Odontotermes formosanus Shiraki, Odontotermes sarawakensis Holmgren, Bulbitermes contrictus Haviland, Bulbitermes flavicans Holmgren, Bulbitermes neopusillus Snyder & Emerson, Bulbitermes subulatus Holmgren, Nasutitermes havilandi Desneux, Nasutitermes matangensis Haviland, Nasutitermes neoparvus Thapa, Pericapritermes dolichocephalus John, Globitermes globosus Haviland (Termitidae), Coptotermes gestroi Wasmann, Schedorhinotermes rectangularis Ahmad (Rhinotermitidae). Jumlah jenis terbanyak didapatkan pada jalur pendakian I dengan ketinggian 400-500 m dpl sebanyak 10 jenis dan pada jalur pendakian II dengan ketinggian 500-580 m dpl sebanyak 5 jenis.
DIVERSITAS SERANGGA PADA HUTAN TANAMAN MONOKULTUR DAN HUTAN HETEROGEN DENGAN METODE WINDOW TRAPS Falahudin, Irham; Jasmi, Jasmi; Salmah, Siti; Dahelmi, Dahelmi
Al 'Ilmi : Jurnal Pendidikan MIPA Vol 1 No 1 (2012): Al 'Ilmi : Jurnal Pendidikan MIPA
Publisher : Universitas Islam Negeri Raden Fatah

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Insects are very important  role in the ecosystem. Among these roles are: herbivory, predation, parasitism, decomposition, pollination, and so on. In addition the role of insects have also been used as an indicator species. Several recent studies indicate that insects exhibit responses that indicate the level of damage to forest habitats. To see how far the influence of the change will be seen flying insect diversity at both locations using window traps. This method was chosen because it will see the role of the flying insects that can be used as indicators of land use change on stratification of the tree which is in both locations expected goal in this study were 1) to determine the level of insect diversity at both forest sites 2) To determine the effect of changes in the forest insect conditions in each forest stratification. From this reseach it was found that the highest density levels are apparently heterogeneous forest there are 29 families 41 species and 119 individuals from arrest (day and night), while 22 families monocidture forest with 32 species and 98 individuals for whom the level of diversity among heterogeneous forest monoculture forests in monoculture forests range 2.14 <H <2.84. While in heterogeneous forests ranged from 2 <H <3 and the third similaty index was not significantly different strata.
KUPU-KUPU PENGUNJUNG PADA BUNGA SEMANGKA (Citrullus lanatus) (THUNB.) MATSUM & NAKAI DI KATAPIANG UJUANG DAN KARAMBIA AMPEK, BATANG ANAI, KABUPATEN PADANG PARIAMAN, SUMATERA BARAT Sari, Ratna; dahelmi, Dahelmi; mairawita, mairawita
Jurnal Bioconcetta Vol 2, No 1 (2016)
Publisher : STKIP PGRI Sumatera Barat

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Penelitian ini bertujuan untuk mengetahui jenis-jenis kupu-kupu pengunjung bunga  Citrullus  lanatus    pada  dua  lokasi,  Katapiang  Ujuang  dan  Karambia Ampek Batang Anai Padang Pariaman Sumatera Barat. Pengamatan dilakukan dari April sampai dengan Desember 2015. Metode penelitian yaitu metode observasi atau pengoleksian langsung menggunakan jaring serangga. Sampel diidentifikasi di Laboratorium Taksonomi Hewan, Jurusan Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Andalas, Padang. Dalam studi ini, didapatkan hasil yaitu 16 spesies kupu-kupu yang terdiri dari 14 genus, dan 5 famili yaitu dari Hesperiidae (2 spesies), Pieridae (6 spesies), Satyridae (2 spesies), Lycanidae (1 spesies), Nymphalidae (5 spesies) .
Inventarisasi Kupu-Kupu (Lepidoptera: Rhopalocera) di Dua Kawasan Air Terjun Kota Padang, Sumatera Barat pratiwi, eka ahda; Dahelmi, Dahelmi
Jurnal Bioconcetta Vol 5, No 2 (2019)
Publisher : STKIP PGRI Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22202/bc.2019.v5i2.3533

Abstract

This study aims to identify of butterflies found in two waterfall areas in the city of Padang. Sampling was carried out in March - April 2018 with the transect walk method,  butterflies were captured using insect net. Total butterflies obtained were 179 individuals consisting of 51 species belonging to 37 genera and 7 families. The highest number of species found in the family Nymphalidae (17 species), followed by Papilionidae (10 species), Lycaenidae (6 species), Pieridae (6 species), Satyridae (6 species), Danaidae (4 species), and Amathusidae (2 species ) The most common species is Junonia atlites (Linnaeus).