Article Per Year (5 Year)
p-Index From 2021 - 2026
2.39
P-Index
This Author published in this journals
All Journal Jurnal Natur Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology AL KAUNIYAH Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Aplikasi dan Inovasi Iptek (JASINTEK) IJOEP : International Journal of Ecophysiology Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences CONSEN: Indonesian Journal of Community Services and Engagement Journal of Community Services: Sustainability and Empowerment Proceeding of International Conference on Biology Education, Natural Science, and Technology Berita Biologi
etti sartina siregar
Unknown Affiliation
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences Veterinary Other

Published : 15 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 15 Documents
Search

 1   2 
Marchantiophyta Family Radulaceae in Batang Toru Forest, North Sumatra Indonesia Damanik, Risjunardi; Pasaribu, Nursahara; Siregar, Etti Sartina; Syamsuardi, S
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2024: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The diversity of liverworts in North Sumatra is currently limited, highlighting the need for further investigations. Therefore, this study aims to collect and determine data on the liverworts of the Radulaceae family in the Batang Toru forest of North Sumatra. This forest was selected because it has very high rainfall with suitable humidity for the growth of liverworts. The samples were collected using an exploratory survey method, namely by collecting all the liverworts of the Radulaceae family along the Batang Toru forest hiking trails. The results showed 17 species of which three are new records for Sumatran liverworts namely Radula iwatsukii, Radula kinabaluensis and Radula obscura. The Radulaceae family was found as epiphytes on tree trunks and leaves. Based on the number of specimen collections, the most commonly found species was Radula javanica. In addition, Radulaceae in the Batang Toru forest was spread at altitudes between 800 and 1100 m.a.s.l and can be included in the Lower Montane Forest category.
Vegetation Composition and Carbon Storage Potential at Tree and Pole Levels in the Gunung Leuser National Park Area, Bukit Lawang, Bahorok District, Langkat Regency, North Sumatra Siregar, Etti Sartina; Aththorick, T Alief; Atni, Oky Kusuma; Nasution, Ahmad Luthfi Abdillah; Hermansyah; Lubis, Putri Amelia; Pardosi, Sinta R; Mustaqilla, Safira; Mardhatillah, Siti
International Journal of Ecophysiology Vol. 7 No. 1 (2025): International Journal of Ecophysiology
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/ijoep.v7i1.17934

Abstract

Forests play a crucial role in environmental, economic, and social sustainability by storing carbon and mitigating climate change. This study aimed to assess the vegetation composition, diversity, and carbon storage in Gunung Leuser National Park, Bukit Lawang, North Sumatra. Fieldwork, conducted using purposive and nested sampling methods, recorded 11 families and 14 plant species with 27 individuals at the tree growth level, and 11 families and 16 plant species with 30 individuals at the pole growth level. The Burseraceae family dominated tree-level composition (29%), while the Phyllanthaceae family dominated pole-level composition (28%). The highest Important Value Index (IVI) was Santiria rubiginosa (36.09%) for trees and Gironniera nervosa (55.46%) for poles. The Shannon-Wiener Diversity Index (H’) was 2.45 for trees and 2.53 for poles, with evenness values (E) of 0.93 and 0.91, respectively. The total biomass was 120.240 tons/ha, with stored carbon amounting to 55.310 tons C/ha. To better estimate carbon storage potential, further research should cover larger areas and include biomass components like litter and dead wood.
Assessing Environmental Drivers of the Distribution of the Rare Species Johannesteijsmannia altifrons: a literature review Siregar, Etti Sartina; Djaingsastro, Aulia Juanda
International Journal of Ecophysiology Vol. 7 No. 1 (2025): International Journal of Ecophysiology
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/ijoep.v7i1.19062

Abstract

Johannesteijsmannia altifrons, a palm species exhibits unique dispersal mechanisms and distribution patterns that are critical to understanding its ecological dynamics. Dispersal has a significant impact on this species' spatial distribution and population dynamics. The distribution is significantly influenced by altitude, which affects its growth and habitat suitability. Publications and references in this analysis came from scientific articles published in bibliographic databases such as Scopus and Google Scholar. The keyword search used was “Johannesteijsmannia altifrons”. The authors examined the literature related to the subject of the systematic review, assessed methodological rigor, analyzed the results being reported in the selected studies. Condensed and organized the data before incorporating the findings into a comprehensive systematic review in narrative form. The distribution of J. altifrons in Indonesia is mainly in the Sumatra region, especially in the Northern and Central parts of the island. Taman Nasional Gunung Leuser (TNGL), Bukit Bungkuk Nature Reserve Forest and the surrounding lowland forests are good habitats. This species has habitat suitability at range elevations 20-500 meters (asl), very steep slopes (≥ 45%). Optimal growth occurs under tree canopies, which provide the necessary shade for the plant to thrive. This suggests a specific habitat preference that influences its distribution
KERAGAMAN JENIS TUMBUHAN MANGROVE FAMILI LYTHRACEAE DI BELAWAN PULAU SICANANG, SUMATERA UTARA Ade Syafitri; Etti Sartina Siregar; Elimasni
Berita Biologi Vol 23 No 1 (2024): Berita Biologi
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/beritabiologi.2024.3901

Abstract

Hutan mangrove merupakan kawasan penyangga antara kawasan daratan dengan perairan, tumbuh dan berkembang di kawasan pesisir. Mangrove memiliki banyak manfaat dari segi aspek ekologi, fisik, dan ekonomi. Pulau Sicanang memiliki bentangan mangrove yang sangat luas, salah satunya dari kelompok famili Lythraceae. Akan tetapi belum diidentifikasi berapa jumlah jenisnya. Tujuan penelitian ini untuk mengidentifikasi jenis tumbuhan famili Lythraceae di hutan mangrove Pulau Sicanang dan mendeskripsikan karakteristik morfologi serta anatomi stomata daunnya. Penelitian ini menggunakan metode eksploratif untuk mengkoleksi sampel famili Lythraceae di empat stasiun yang menjadi jalur jelajah. Data karakteristik jenis-jenis famili Lythracea dianalisis secara deskriptif. Kerapatan dan distribusi stomata epidermis daun dianalisis secara kuantitatif. Hasil penelitian diperoleh bahwa terdapat tiga jenis famili Lythraceae berdasarkan karakterisktik morfologinya, yaitu Sonneratia alba, Sonneratia caseolaris dan Sonneratia ovata. Status konservasi famili Lythraceae di Pulau Sicanang berdasarkan IUCN Red List of Threatened Species masuk ke dalam kategori Least Concernt (Sonneratia alba dan Sonneratia caseolaris); dan kategori Near Threatened (Sonneratia ovata). Sonneratia alba, Sonneratia caseolaris dan Sonneratia ovata memiliki tipe stomata anomositik dan distribusi stomata tersebar. Kerapatan stomata Sonneratia alba masuk ke dalam kategori tinggi (>500/mm2), sedangkan Sonneratia caseolaris dan Sonneratia ovata masuk dalam kategori rendah (<300/mm2).
THE LIVERWORT GENUS Marchantia (Marchantiaceae) OF MOUNT SIBAYAK NORTH SUMATRA, INDONESIA Etti Sartina Siregar; Nunik S. Ariyanti; Sri S. Tjitrosoedirdjo
BIOTROPIA Vol. 20 No. 2 (2013): BIOTROPIA Vol. 20 No. 2 December 2013
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2013.20.2.327

Abstract

Study on the Hepaticae (Liverworts) of Sumatra is very scanty including the knowledge on the genus of Marchantia (Marchantiaceae). This study was conducted to explore the diversity of Marchantia in Mount Sibayak North Sumatra, Indonesia. There are seven species of Marchantia in Mount Sibayak North Sumatra, five of the species are previously known: Marchantia acaulis, M. emarginata, M. geminata, M. paleacea, and M. treubii; two of the species are new records for Sumatra (M. polymorpha and M. rubribarba). An identification key of the genus Marchantia from Mount Sibayak, North Sumatra is provided.
Co-Authors Ade Syafitri Ameilia Zuliyanti Siregar Amir, Ahmad Aldrie Arif NURYAWAN Arrasyid, Nurfida Khairina Aththorick, T Alief Atni, Oky Kusuma Aulia Juanda Djaingsastro Aznawi, Andi Aznan Bejo Slamet Berliani, Kaniwa Br. Ketaren, Nurjama'yah DAMANIK, RISJUNARDI Delvian Deni Elfiati Diana Sofia Hanafiah Dyan Rahmaito Siregar Elfiati, Deni Elfiati Elimasni Erni Jumilawaty Ferdinand Susilo Helmin Parida Zebua Hermansyah Hesti Wahyuningsih Isnaini Nurwahyuni Iwan RISNASARI Julius Paolo Siregar Jumilawaty, Erni Jumilawaty KIKI NURTJAHJA Kiking Ritarwan Leopardas, Venus LINDAWATI Lubis, Putri Amelia Mardhatillah, Siti Masitta Tanjung Meutia Nauly Mohammad Basyuni Mubaraq, Alfian Mubaraq, Alfian Mubaraq Nasution, Ahmad Luthfi Abdillah Nauly, Meutia Nauly Nunik S. Ariyanti NUNIK SRI ARIYANTI NUNUK PRIYANI Nursahara Pasaribu Nursahara Pasaribu Pardosi, Sinta R Rangkuti, Ahmad Baiquni Risnasari, Iwan Risnasari Safira Mustaqilla Sembiring, Christian Hadinata Sivaipram, Itchika Sivaipram, Itchika Sivaipram Slamet, Bejo Slamet Sri S. Tjitrosoedirdjo Sri S. Tjitrosoedirdjo Sri Sudarmiyati Tjitrosoedirdjo Sulistyono, Nurdin Supriharti, Deny Susilowati, Arida Susilowati Syamsuardi Syamsuardi Syamsuardi, S T. Alief Aththorick Yunasfi Yunilas