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All Journal JBIO: jurnal biosains (the journal of biosciences)
Lazuardi Lazuardi
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology

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KEANEKARAGAMAN ANGGREK TERSTRIAL DI SEPANJANG JALUR PENDAKIAN KAWASAN HUTAN LINDUNG GUNUNG SIBUATAN KECAMATAN MEREK KABUPATEN KARO SUMATERA UTARA Wina Dyah Puspitasari; Sri Wahyuni Siregar; Yusran Efendi; Hary Prakasa; Lazuardi Lazuardi
JBIO: jurnal biosains (the journal of biosciences) Vol 7, No 2 (2021): Jurnal Biosains
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v7i3.23804

Abstract

Gunung Sibuatan adalah gunung yang paling tinggi di Sumatera Utara yang dijadikan sebagai salah satu tujuan wisata para pendaki. Banyaknya pendakian yang dilakukan ke Gunung sibuatan membuat keberadaan hutan terancam. Salah satunya adalah keberadaan anggrek terestrial yang tumbuh di jalur pendakian sehingga sangat perlu dilakukan pendataan. Penelitian ini  bertujuan untuk mengetahuai keanekargaman anggrek terestrial di kawasan hutan lindung gunung Sibuatan. Metode penelitian ini adalah eksplorasi, waktu penelitian dilakukan pada Juli-Agustus 2020. Penelitian dilakukan di Kawasan Hutan Lindung Gunung Sibuatan Kecamatan Merek, Kabupaten Karo, Provinsi Sumatera Utara sesuai habitat anggrek terestrial. Berdasarkan eksplorasi yang telah dilakukan terdapat 12 jenis anggrek terestrial. Adapun jenis anggrek terestrial yang ditemukan di Kawasan Hutan Lindung Gunung Sibuatan Kecamatan Merek, Kabupaten Karo, Provinsi Sumatera Utara adalah Anoectochilus longicalcaratus, Gastrodia siamensis, Calanthe chrysoglossoides, Erythrodes blumei, Cymbidium hartinahianum, Platanthera angustata, Dendrochilum lepidum, Eria crassipes, Coelogyne longifolia, Eria sp., Trichotosia ferox dan  Cymbidium lancifolium.  
PAINTED TERRAPIN (Batagur borneoensis) PREFERENCE ON NESTING SITE IN SERUWAY DISTRICT, ACEH TAMIANG Hana Shafira Aulia; Mufti Sudibyo; Lazuardi Lazuardi
JBIO: jurnal biosains (the journal of biosciences) Vol 7, No 3 (2021): Jurnal Biosains
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v7i3.18404

Abstract

Painted terrapin (Batagur borneoensis) is a critically endangered freshwater turtle that has an annual migration behavior from freshwater rivers to the coast during the breeding season. In the habitat selection, painted terrapin also have a tendency that is influenced by certain factors to meet their needs. This underlies the possible of environmental characteristics influence on their nesting site selection and the eggs production. This study aims to determine the correlation between eggs amount that obtained from each nest with : 1) distance of nesting site from vegetation, 2) distance between each nests, 3) distance nesting site from coastline, and 4) the slope of nesting site. Data collected by observation in the field and using Purposive sampling method to determine 4 research stations. Data was analyzed with multiple linear regression analysis by using IBM SPSS 22. The results showed the types of vegetation around the nesting sites were Casuarina sp., Ipomoea pes-caprae, Cyperus sp., Scaevola taccada, Thespesia populnea and Avicennia sp. The result showed the average of distance between nesting site is  90.7±124.4 meters, the average distance of nesting site to vegetation about 2.5 ± 3.8 meters, the average distance of nest to the coastline is  4.6±2.7 meters, the average slope of the nesting sites about 10.7°±3.1°, and the average number of eggs is 16.9±3.1 eggs. Based on multiple linear regression analysis, the eggs amount is not influenced by the distance of nesting site from coastline, the distance to each nesting site, the distance of nesting site with vegetation and the slope of nesting site.
Co-Authors Hana Shafira Aulia Hary Prakasa Mufti Sudibyo Shopiah Dhuha Siregar Sri Wahyuni Siregar Wina Dyah Puspitasari Yusran Efendi