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All Journal Jurnal Biologi Universitas Andalas Prosiding Seminar Biologi
Rizaldi Rizaldi
Laboratorium Ekologi Hewan, Jurusan Biologi, FMIPA, Universitas Andalas
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Karakteristik Sarang Bondol Peking Lonchura punctulata (Linnaeus,1758) di Kawasan Kampus Universitas Andalas - Fitri; - Rizaldi; Wilson Novarino
Jurnal Biologi Universitas Andalas Vol 3, No 4 (2014)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.3.4.%p.2014

Abstract

A study on the nest characteristics of scaly-breasted munia (Lonchura punctulata) located around campus building and forest areas of Andalas University, Padang has been conducted from September 2013 to February 2014 using survey and nest sampling methods. Result of this study showed that the nest of scaly-breasted munia were located from four to six meter from the ground level. Those nest that located around the campus building were significantly higher than the forest area. Nest position in the tree of campus building area were more often found in primary branchs, whereas the nest of forest area were more often in secondary branchs. The nest of scaly-breasted munia were discover in 10 tree species. Shape and morphological size of the nest tended to be different betwen the two locations. Nest of scaly-breasted munia were made of natural materials and did not use find any synthetic material. Grass (Graminae) were the main material used for the nests.Keywords: nest, characteristics, materials, scaly-breasted munia.
Kepadatan Populasi dan Struktur Kelompok Simpai (Presbytis melalophos) serta Jenis Tumbuhan Makanannya di Hutan Pendidikan dan Penelitian Biologi (HPPB) Universitas Andalas Rahmi Fitri; - Rizaldi; Wilson Novarino
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

A study about population density, group structure and diet of mittered leaf-monkeys (Presbytis melalophos, Raffles 1821) at the biological research and educational forest of Andalas University had been carried out from June to November 2012. This study used direct census method to figure out their structures and population and ad-libitum method to observe the plants consumed by animal subjects. There were 13 individuals of the leaf-monkeys in which belong to three groups. The group structure consisted of 2-3 adult individuals, 1- 2 subadults and 0-1 juvenile. Population density of the leaf monkeys in a defined area of 0.75 km2 was 17.3 individual/km2 and group density was 4 group/km2. The average of homerange was 0.13 km2. There were 9 species of plants consumed by the leaf monkeys within their homeranges those belong to 8 families.Keyword: Presbytis melalophos, direct census, ad-libitum, population density
Jenis - Jenis Mamalia Di Koto Baru Nagari Paninggahan Kabupaten Solok Sumatera Barat Fikriya - Rahma; Wilson - Novarino; Rizaldi - Rizaldi
Jurnal Biologi Universitas Andalas Vol 4, No 4 (2015)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.4.4.223-232.2015

Abstract

An inventory of mammalian species from Koto Baru Paninggahan Solok West Sumatera was conducted from August to October  and continued from November to December 2015. The animals were identified through photographes from camera traps, personal encounters as well as indirect observations including foot prints and interviews to local inhabitants. This study has documented 15 species of mammals which belong to 11 families and 6 orders. From a total 511 identified photograps, it was known that pig-tailed macaque (Macaca nemestrina) was the most frequently photographed (212 images) and sambar deer (Rusa unicolor) was the least frequently photographed (3 images).
Struktur Kelompok, Daerah Jelajah, dan Jenis Makanan Ungko (Hylobates agilis) di Hutan Pendidikan dan Penelitian Biologi Universitas Andalas Yunila Berliana; - Rizaldi; Wilson Novarino
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

A study on group structures, home ranges and plant species eaten by agile gibbons (Hylobates agilis) at The Biological Education and Research Forest, Andalas University was conducted from June to November 2012. Group structures were figured out through direct count method during field surveys, while plants eaten by the gibbons were recorded using ad-libitum observation. There were 15 gibbons which belong to three monogamous groups. Structure of the groups consisted of one adult male and one adult female, one subadult, 1-2 juveniles, and 0-1 infant. Sex ratio of the population was 1.1 : 1. Average home range was 10.9 ha. Population density of the gibbons in a defined area of 62.76 ha was 23.9 individu/km2 and group density was 4.78 group/km2. There were 17 species of plant eaten by the gibbons, those species belong to 11 families, where the highest number of species belong to Euphorbiaceae and Moraceae.Keywords: Hylobates agilis, group structure, home range, food plant
Jaringan Sosial (Social Network) Antar Jantan Monyet Ekor Panjang (Macaca fascicularis) Di Gunung Meru, Padang, Sumatera Barat Ami Hidayat; Rizaldi Rizaldi; Jabang Nurdin
Jurnal Biologi Universitas Andalas Vol 7, No 1 (2019)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.7.1.14-20.2019

Abstract

A study on social network based on grooming interactions among males of long-tailed macaques (Macaca fascicularis) at Gunung Meru, Padang has been conducted from August to October 2015. The dominance relationship determined by submissive interactions among 17 adult males. Submissive interactions were recorded using ad libitum observation and grooming interactions by continuous recording method. The results showed that the dominance hierarchy among males was linear (Matman linearity index: h' = 0.97). Alfa male appeared to have the highest centrality index among all the males. This study indicates that individuals attained higher dominance hierarchy tend to have higher degree of centrality.
Mamalia Kecil Terestrial di Gunung Singgalang, Sumatera Barat Inda Dwi Solina; Wilson Novarino; - Rizaldi
Jurnal Biologi Universitas Andalas Vol 2, No 1 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.1.%p.2013

Abstract

Mt. Singgalang have high diversity of flora and fauna, which also drives the high diversity of small terrestrial mammals. A study on diversity of small terrestrial mammals (Muridae, Erinaceidae and Soricidae) has been caried out from July to August 2012 by using an extensive trapping method. This research used 30 snap traps and 10 20L pit fall trap drift fences in 360 trap-nights. Fourty individu of small terrestrial mammals have been caught, belong to six genera, three families and two orders. Those species were Hylomys suillus, Crocidura beccarii, Crocidura neglecta, Leopoldamys sabanus, Maxomys hylomyoides, Maxomys surifer, Niviventer rapit, and Sundamys infraluteus. Pit fall trap drift fences was more effective method to trap Crocidura spp.Keywords: species identification, small terrestrial mammals, Mt.Singgalang
Jenis-Jenis Burung di Perkebunan Kelapa Sawit PT. Andalas Wahana Berjaya (AWB), Kabupaten Dharmasraya, Sumatera Barat Efrita Ruswenti; Wilson Novarino; - Rizaldi
Jurnal Biologi Universitas Andalas Vol 3, No 3 (2014)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.3.3.%p.2014

Abstract

Bird species at oil palm plantation of PT. Andalas Wahana Berjaya (AWB), Dharmasraya, West Sumatra, have been studied from January to February 2014. This study aimed to identify bird species at the location. We  used direct observation method and mist netting. The result found 43 bird species, which belong to 21 families and 9 orders. Those 32 species were identified through direct observation, and 16 species through mist netting, while 5 species were confirmed through both direct observation and mist netting. Among the total, 5 bird species were protected and 2 were endemic.Keywords : bird species, directly observation method, mist netting, oil palm plantation.
Komunitas Anura (Amphibia) pada Tiga Tipe Habitat Perairan di Kawasan Hutan Harapan Jambi Kharisma Putra; - Rizaldi; Djong Hon Tjong
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

A study on Anuran’s community (Amphibia) living in three types of wetland habitats ( i.e: rivers, lakes, and swamp forest) at Harapan Rainforest Jambi was conducted from October 2011 to January 2012 by using Encounter Visual Survey along six belt transects. This study found 115 individuals of Anura’s, which belong to 14 species, eight genera, and three families. Density of each species was different between the three wetland habitats. The highest density in the rivers was Limnonectes paramacrodon (6.66 ind/ha), in the lakes was Occydozyga sumatrana (16.87 ind/ha), and in the swamp forest was Limnonectes paramacrodon (5 ind/ha). Diversity index of Shannon Wiener indicated that species diversity was different between lakes, rivers, and swamp forest (rivers: 1.227, lakes: 1.594, and swamp forest: 1.154). The highest similarity index was found between rivers and lakes (42.86%), and the lowest between swamp forest and lakes (16.67%). Distribution patterns of most Anuran’s species based on Quadrat Variance Analysis were clumped.Keywords: anura, community structure, distribution pattern, wetland habitat
Jenis-jenis Tumbuhan yang Dikonsumsi Oleh Ungko (Hylobates agilis F. Cuvier) di Hutan Pendidikan dan Penelitian Biologi, Universitas Andalas Esa De Safela; - Syamsuardi; - Rizaldi
Jurnal Biologi Universitas Andalas Vol 2, No 4 (2013)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.2.4.%p.2013

Abstract

A study about species of plant consumed by Ungko (Hylobates agilis) at The Biological Education and Research Forest, Andalas University, has been done from July to November 2012. We used ad libitum observation to the gibbon’s feeding behavior and sampled those plants they ate. The samples were processed at Herbarium Andalas University (ANDA), Padang. Seventeen species of plants which belong to eleven families have been recognized as food resources of the gibbons. We described each species of the plants based on morphological characters primerily the part eaten by the gibbon. The results showed that most of the fruit eaten by ungko were fleshy, succulence, and easy to digest. The fruit types were bacca, legume, syconium, capsule and drupe. Keywords: Hylobates agilis, identification, plant species.
Karakteristik Kubangan dan Aktivitas Berkubang Babi Hutan (Sus scrofa L.) di Hutan Pendidikan dan Penelitian Biologi (HPPB) Universitas Andalas Wido Rizki Albert; - Rizaldi; Jabang Nurdin
Jurnal Biologi Universitas Andalas Vol 3, No 3 (2014)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.3.3.%p.2014

Abstract

Wallowing activity is thought to have some important roles in the viability of wild boars (Sus scrofa L.). The characteristics of wallow and wallowing activity can show the ability of the boars to adapt with variety environmental challenges. Study on the characteristics of wallow and wallowing activity of the boars at the Biological Education and Research Forest (HPPB) Andalas University was conducted from September to December 2012 and from April to July 2013. This study was conducted by observing the characters of five wallows, while wallowing activities at two different wallows were observed by using camera traps. The results showed that wallows were found mainly rounded in shape, located near by habitual animal path with shadowed by dense canopy. The dominant substrate of wallows is particles of gravel and coarse sand. The rubbing trees were found around the wallows. From a total 197 observation days, we found 53 video and 51 photos which indicated the wallowing activities within 26 different visiting times. Those activities occurred in the morning between 6:00 am to 09:00 am, with the temperature around the wallows was 25⁰ C. Activities performed while wallowing is rolling, standing, resting and rooting. The result of this study may suggest that wallowing activity has more important function than thermoregulation as previously suggested.Keywords:  wild boar, characteristics wallow, wallowing activity, thermoregulation.
Co-Authors - Fitri - Junaidi Ami Hidayat Boby Hariadi Djong Hon Tjong Efrita Ruswenti Erie Kolya Nasution Esa De Safela Fikriya - Rahma Heru Handika Inda Dwi Solina Islami Annisa Jabang Nurdin Karmelia Kontesa Kharisma Putra Rahmi Fitri Rosyid Ridlo Al-Hakim Siti Rukayah Syamsuardi Syamsuardi Wido Rizki Albert Wilson Novarino Yunila Berliana