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All Journal Jurnal Antropologi: Isu-Isu Sosial budaya Jurnal Biologi Universitas Andalas Prosiding Seminar Biologi AL-HAYAT: Journal of Biology and Applied Biology Scripta Biologica Jurnal Pembelajaran dan Biologi Nukleus Journal of halal product and research (JHPR) Konservasi Hayati SAINSMAT: Journal of Applied Sciences, Mathematics, and Its Education Biodiversitas Journal of Biological Diversity
Rizaldi Rizaldi
Andalas University
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Dentistry Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Veterinary

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Bird Species Based On Altitudinal Zonation On Mount Kerinci Hiking Trail Through Kersik Tuo Lintang Yodhy; Rizaldi Rizaldi; Wilson Novarino
Jurnal Biologi Universitas Andalas Vol 10, No 2 (2022)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jbioua.10.2.53-59.2022

Abstract

Altitudinal gradient has specific factors that affect the composition of the bird community. A study of bird species based on altitude zonation on the Mount Kerinci hiking trail through Kersik Tuo, Kerinci, Jambi was conducted in August 2021 to know how the composition and structure of bird communities differed based on altitude zonation. This study was conducted using the point-count method. Point-count distributed along the hiking trail from 1,755 to 2,906 m asl and included in three zones (Zone I: 1,755 - 1,900 m asl: Zone II: 1,901 - 2,500 m asl: and Zone III: above 2,501 m asl). Four hundred sixty-seven individuals from 78 species of birds were recorded along the hiking trail. This number indicates that the number of bird species in the study at Mount Kerinci was more than the number of bird species in the study at other mountains in Sumatra. Species richness was the highest in Zone I (54 species), followed by Zone II (34 species) and Zone III (20 species). The species richness decrease as elevation increases.
SATWA PRIMATA DAN TEGAKAN POHON DI SEPANJANG JALUR KERSIK TUO GUNUNG KERINCI, JAMBI Islami Annisa; Rizaldi; Erizal Mukhtar
Konservasi Hayati Vol 18 No 2 (2022): OKTOBER
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/hayati.v18i2.23954

Abstract

Keberadaan hewan primata arboreal dihabitatnya tergantung kepada profil tegakan pohon, sementara tegakan pohon dipengaruhi oleh gradasi ketinggian habitat dari permukaan laut. Penelitian ini bertujuan untuk mengetahui jenis hewan primata dan profil tegakan pohon berdasarkan ketinggian habitat disepanjang jalur pendakian Gunung Kerinci. Survei lapangan dilaksanakan di sepanjang jalur pendakian Kersik Tuo Gunung Kerinci, Jambi mulai dari ketinggian 1755 sampai 3805 mdpl. Kami menggunakan metode pengamatan langsung dan auditory sensus untuk mengetahui keberadaan satwa primata dan struktur kelompoknya, Sedangkan metode plotless untuk mengevaluasi profil tegakan pohon. Kami menemukan dua jenis primata yaitu Simpai (Presbytis melalophos) sebanyak tujuh kelompok (( X) ̅= 6.15 individu/kelompok) pada ketinggian habitat antara 1806 hingga 2587 m dpl, dan Siamang (Symphalangus syndactylus) dengan empat kelompok (( X) ̅= 3.33 individu/ kelompok) pada ketinggian habitat antara 1898 hingga 2580 m dpl. Profil tegakan pohon yaitu diameter pohon, ketinggian pohon, dan tutupan kanopi tidak berbeda nyata di sepanjang jalur pendakian Kersik Tuo dimana ditemukannya hewan primata tersebut. Hasil penelitian ini menunjukkan bahwa keberadaan dua jenis primata pada rentang ketinggian ini dimungkinkan oleh profil tegakan pohon yang relatif sama memiliki potensi pakan dan kanopi yang saling terhubung. Kata Kunci : Gunung Kerinci, jalur pendakian, ketinggian, primata, tegakan pohon
Implementation of Zoo Management Strategies for Animal Welfare in Indonesia Risqi Mutia Arba; Wilson Novarino; Rizaldi Rizaldi
Al-Hayat: Journal of Biology and Applied Biology Vol 6, No 1 (2023)
Publisher : Fakultas Sains dan Teknologi, UIN Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/ah.v6i1.16261

Abstract

A zoo is a place to live or collect wild animals outside their natural habitat which can be controlled by the government or non-government, and functions as a breeding ground so that natural genetics is maintained. Apart from being a place of conservation, it is also a place of education and a place of recreation. The problem with zoos in Indonesia is that their management is not by the principles of animal welfare. This study aims to summarize the results of the Systematic Literature Review (SLR) by collecting reference articles related to the keyword "Implementation of Zoo Management Strategies based on Animal Welfare Standards". Management efforts must pay attention to the survival of animals by the principles of animal welfare, namely freedom from hunger and thirst; free from pain, injury, and disease; free from environmental discomfort, abuse, and violence; freedom from fear and depression; and free in expressing natural behavior. Pay attention to zoo management, both animals and officers or keepers according to their expertise. Strategy implementation using SWOT analysis, namely analysis that obtains useful strategies to implement or recommendations based on results that can maximize Strengths and Opportunities, by minimizing Weaknesses and avoiding Threats.
Short Communication: Activity budget and diet in silvery lutung Trachypithecus cristatus at Gunung Padang, West Sumatra, Indonesia MUHAMMAD AZHARI AKBAR; RIZALDI RIZALDI; WILSON NOVARINO; DYAH PERWITASARI-FARAJALLAH; YAMATO TSUJI
Biodiversitas Journal of Biological Diversity Vol. 20 No. 3 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200315

Abstract

Abstract. Akbar MA, Rizaldi, Novarino W, Perwitasari-Farajallah D, Tsuji Y. 2019. Activity budget and diet in silvery lutung Trachypithecus cristatus at Gunung Padang, West Sumatra, Indonesia. Biodiversitas 20: 719-724. We studied the activity budget and diet of a group of wild silvery lutungs (Trachypithecus cristatus) in Gunung Padang, West Sumatra, Indonesia, with special attention to age-and sex-related differences. We conducted behavioral observations between July and October 2016, and found that resting constituted the greatest proportion of their daily activities (46%), followed by moving (38%), feeding (12%), and grooming (4%). Resting peaked between 11 am and 1 pm, while moving decreased in this period. The juveniles showed higher percentage of moving and lower percentage of feeding than the adults. The adult males showed higher percentage of grooming than the adult females. Finally, the nursing females showed lower percentage of resting and higher percentage of grooming than single females. During the study, we recorded 14 plant species consumed by the lutungs. Their dietary composition was composed of 63% foliage and 37% fruit. Both the foliage and fruits of Ficus variegata, a plant species belonging to the family Moraceae, was the most consumed. Foliage was frequently consumed by the nursing females and juveniles. The adult males were frequently observed to eat fruit during the study period. No fruit was consumed by the nursing females.
Sumatran tiger identification and phylogenetic analysis based on the CO1 gene: Molecular forensic application ASHRIFURRAHMAN ASHRIFURRAHMAN; SARUEDI SIMAMORA; RUSDIYAN RITONGA; WILSON NOVARINO; DJONG HON TJONG; RIZALDI RIZALDI; SYAIFULLAH SYAIFULLAH; DEWI IMELDA ROESMA
Biodiversitas Journal of Biological Diversity Vol. 23 No. 4 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230410

Abstract

Abstract. Ashrifurrahman, Simamora S, Ritonga R, Novarino W, Tjong DH, Rizaldi, Syaifullah, Roesma DI. 2022. Sumatran tiger identification and phylogenetic analysis based on the CO1 gene: molecular forensic application. Biodiversitas 23: 1788-1794. Wild animal hunting, especially in the Sumatran tiger (Panthera tigris sumatrae), has been caused the population decline. Regulation and law enforcement have been implemented even though it does not affect optimal because of the trickery of poachers and illegal traders. Sometimes, the evidence of P. t. sumatrae derivative products, for example, bones, nails, skins, hair, and other body parts, cannot be properly identified to raise the cases. However, genetic markers, such as the CO1 gene, have successfully identified illegal trafficking samples. This study used 20 samples, consisting of seven samples (four preserved hairs, two claws, one bone) that were suspected of P. t. sumatrae collected from illegal wildlife trade cases in West Sumatra, Indonesia. Other thirteen samples were twelve blood and one hair of P. t. sumatrae samples were collected from the Dharmasraya Sumatran Tiger Rehabilitation Center (PR-HSD). All samples were isolated, Polymerase Chain Reaction (PCR), sequenced, and 999 base pairs (bp) of the CO1 gene sequences were analyzed. In addition, National Center for Biotechnology Information (NCBI) data sequences including two P. t. sumatrae sequences, four P. t. altaica sequences, one P. t. amoyensis sequence, one P. t. corbetti sequence, three P. pardus sequences, and one Felis catus sequence were collected for comparison and supporting data. The result confirmed that all samples in this study were P. t. sumatrae. We determined those depending on similarity value which was 99.60%-99.70% with P. tigris reference sequence (NC_010642.1) and 99.90%-100% with P. t. sumatrae (JF357969.1). Phylogenetic analysis supported species identification with average intraspecies sequence divergence was 0 to 0.4% and presented the monophyletic group. This study was the first and most recent report to use seized samples to identify P. t. sumatrae based on the CO1 gene in West Sumatra, Indonesia.
Assessing farmer’s perceptions of Sunda leopard cats (Prionailurus javanensis) in rice fields area of West Sumatra, Indonesia AHMAD FAKHRI; RIZALDI RIZALDI; AADREAN AADREAN
Biodiversitas Journal of Biological Diversity Vol. 25 No. 11 (2024)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d251139

Abstract

Abstract. Fakhri A, Rizaldi, Aadrean. 2024. Assessing farmer’s perceptions of Sunda leopard cats (Prionailurus javanensis) in rice fields area of West Sumatra, Indonesia. Biodiversitas 25: 4397-4405. Land use change in agricultural areas has caused wildlife to adapt to living in these areas, such as rice fields. Sunda leopard cats (Prionailurus javanensis) in rice fields have rice field rats as their main prey, which are pests. This cat is useful as a biocontrol of rat pests, but human activities threaten its presence. This study aims to determine farmers' perceptions of the importance of Sunda leopard cat’s presence, its conservation and protection, and farmer participation in its conservation in rice fields of Nagari Batu Taba, Agam Regency, West Sumatra. In June 2023, we employed purposive sampling and conducted semi-structured interviews involving 27 farmers. A mixed-methods approach was used to analyze the data. The results of this study showed that farmers' perceptions were in the 'Good' category for the importance of the cat's presence (76.74%), for conservation and protection (78.08%), and for farmer participation in conservation efforts (93%) in rice fields of Nagari Batu Taba. Farmers recognize the important role of these cats in the rice field ecosystem as a biological pest control of rice field rats. However, human activities in human-dominated landscapes pose a threat to the survival of these cats. Coexisting in the same area has motivated farmers to undertake conservation efforts to protect cat presence in the rice fields. Therefore, effective conservation efforts involving farmers, researchers, government agencies, and non-governmental organizations are essential. However, the need for further research to develop conservation strategies and evaluate the conservation status of Sunda leopard cat is urgent and cannot be overstated.
Home range of rehabilitated siamang (Symphalangus syndactylus) in fragmented forest areas of South Solok, West Sumatra, Indonesia RIFTA SEPTIAVI; AADREAN AADREAN; RIZALDI RIZALDI; AURELIEN F. BRULE
Biodiversitas Journal of Biological Diversity Vol. 27 No. 1 (2026)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d270113

Abstract

Abstract. Septiavi R, Aadrean, Rizaldi, Brule AF. 2026. Home range of rehabilitated siamang (Symphalangus syndactylus) in fragmented forest areas of South Solok, West Sumatra, Indonesia. Biodiversitas 27 (1): d270113. https://doi.org/10.13057/biodiv/d270113. Effective post-release adaptation is critical to the long-term success of primate reintroduction programs, yet empirical data on how release duration influences ranging behavior remain limited. This study examined the home range size and spatial use of three rehabilitated siamang (Symphalangus syndactylus) pairs released in fragmented forest areas in the Bukit Tengah Pulau and Bukit Salo forests within the PT KSI concession of South Solok, West Sumatra, Indonesia. The subjects were released at different adaptation durations (9 months, 6 months, and 3 months) before observation. Home range estimates based on the Minimum Convex Polygon (MCP) method showed exploration areas of 26.64 ha, 23.45 ha, and 18.35 ha, respectively. Kernel Density analysis indicated that siamangs with shorter adaptation periods exhibited movements concentrated near feeding sites, whereas those with longer adaptation periods were more dispersed, reflecting greater foraging independence. The Kruskal-Wallis test revealed significant differences in home range size among groups (p<0.05). These findings indicate that longer post-release periods may facilitate greater ranging capacity, an essential factor for territory establishment and survival in the wild. These findings provide evidence-based guidance for optimizing release protocols in future primate conservation programs. Extended monitored release period conditioning combined with post-release habitat restoration is therefore recommended to improve long-term reintroduction success of siamangs and other arboreal primates.
Provisioning Effects on Insulin Hormone and Blood Glucose Concentration in Long-tailed Macaques (Macaca fascicularis) in Ngarai Sianok Urban Area, Bukittinggi Rihadatul Aisyah; Rizaldi Rizaldi; Rita Maliza
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 12, No 3: Jurnal Pembelajaran Dan Biologi Nukleus September 2026
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v12i3.9649

Abstract

Background: Human provisioning in tourism areas can influence the dietary patterns of long-tailed macaques (Macaca fascicularis) and potentially affect their physiological conditions, including insulin regulation and glucose metabolism. This study aimed to analyze insulin concentrations and blood glucose levels, and to examine the relationship between the two, in a population of M. fascicularis in the Sianok Canyon Tourism Area, Bukittinggi. Methodology: An observational study with a cross-sectional design was conducted at three locations: Belakang Balok (BB), Bukik Cangang Kayu Ramang (BCKR), and Birugo (BR). A total of 23 individuals were captured and analyzed. Blood glucose levels were measured with a portable glucometer, and insulin concentrations were measured by Enzyme-Linked Immunosorbent Assay (ELISA). Differences in glucose levels and insulin concentrations across locations were analyzed using the Kruskal–Wallis test, while the relationship between the two was analyzed using Spearman’s rank correlation. Findings: There were no significant differences in blood glucose levels (p = 0.094) or insulin concentrations (p = 0.962) among the study locations. However, glucose levels had a higher mean rank at BB (15.56) than at BCKR (11.88) and BR (8.07). Spearman's correlation analysis revealed a moderate positive relationship between glucose levels and insulin concentrations (ρ = 0.349), but it was not statistically significant (p = 0.102). Contributions: The study results indicate variations in glucose levels and insulin concentrations among individuals; however, no significant differences were found between locations, nor was there a significant relationship between the two parameters. Further research with larger sample sizes and more controlled physiological measurements is needed to understand variations in the metabolic profile of M. fascicularis in tourism areas
Co-Authors - Fitri - Junaidi . Merry Aadrean Aadrean Afdhal Tisyan AHMAD FAKHRI Ami Hidayat Asferi Ardiyanto Ashrifurrahman Ashrifurrahman AURELIEN F. BRULE Boby Hariadi Dewi Imelda Roesma Djong Hon Tjong DYAH PERWITASARI-FARAJALLAH Efrita Ruswenti Erie Kolya Nasution Erie Kolya Nasution Erik Marlius Erizal Mukhtar Esa De Safela Fikriya - Rahma Heri Doni Heru Handika Inda Dwi Solina Islami Annisa Islami Annisa Jabang Nurdin Karmelia Kontesa Kharisma Putra Lintang Yodhy Lusi Andalisa Mahdi Mutashim Maliza, Rita MUHAMMAD AZHARI AKBAR Nur Insani Nursyirwan Effendi, Nursyirwan Rahmi Fitri RIFTA SEPTIAVI Rihadatul Aisyah Risqi Mutia Arba Rizki Sekar Arum Rosyid Ridlo Al-Hakim RUSDIYAN RITONGA SARUEDI SIMAMORA Siti Rukayah Siti Rukayah Sunarto Sunarto SYAIFULLAH SYAIFULLAH Syamsuardi Syamsuardi Tresno Tresno Try Surya Harapan Warnety Munir Wido Rizki Albert Wilson Novarino YAMATO TSUJI Yunila Berliana