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All Journal BioEksakta : Jurnal Ilmiah Biologi Unsoed Biosaintifika: Journal of Biology & Biology Education
Dwi Nugroho Wibowo
Universitas Jenderal Soedirman
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Veterinary

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Keanekaragaman Tumbuhan Bawah pada Berbagai Umur Tegakan Jati (Tectona grandis L.) di KPH Banyumas Timur Setiayu, Dian Putri; Wibowo, Dwi Nugroho; Yani, Edy
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 1 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.1.1856

Abstract

Salah satu unit pengelolaan Perusahaan Hutan Negara Indonesia (Perhutani) yang mengembangkan hutan jati adalah Kesatuan Pemangku Hutan (KPH) Banyumas Timur. Hutan jati yang dikelola KPH Banyumas Timur terdiri dari berbagai kelompok umur. Umur tegakan berkaitan dengan tutupan tajuk dari pohon di sekitar tumbuhan bawah yang berpengaruh terhadap keanekaragaman tumbuhan bawahnya. Penelitian ini bertujuan untuk menganalisis vegetasi keanekaragaman dan kemerataan jenis tumbuhan bawah pada berbagai umur tegakan Jati (Tectona grandis L.) di KPH Banyumas Timur. Penelitian dilakukan di Hutan jati BKPH Kebasen, KPH Banyumas Timur, dengan tiga kelompok umur tegakan yaitu 16, 20 dan 22 tahun. Hasil penelitian menunjukkan bahwa pada berbagai umur tegakan jati di KPH Banyumas Timur terdapat 34 jenis tumbuhan bawah dari 17 familia. Tegakan jati umur 16 tahun memiliki keragaman tumbuhan tertinggi dengan indek nilai penting tertinggi sebesar 42,77% pada Echinochloa colona (L.) dari familia Poaceae. Keanekaragaman tumbuhan bawah pada tegakan jati dengan umur 16 tahun sebesar 2,12 dengan kemerataan jenis sebesar 0,73. Nilai kesamaan jenis tertinggi sebesar 30,77% dari tegakan jati berumur 20 tahun sedangkan tegakan jati berumur 16 tahun dengan 20 tahun sebesar 25% dan 26,67%. Komposisi dan distribusi serta tinggi rendahnya keanekaragaman tumbuhan bawah pada ketiga tegakan jati umur berbeda, dapat dipengaruhi oleh faktor lingkungan yang terbentuk disekitar tegakan.
Keanekaragaman Vegetasi Tumbuhan bawah pada tegakan Jati (Tectona grandis Linn.) di RPH Ciporos Widiyanto, Ody Febri; Wibowo, Dwi Nugroho; Hidayah, Hexa Apriliana
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 3 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2020.2.3.2926

Abstract

Abstract: The undergrowth can be used to describe soil conditions that can be seen clearly in the field, because it can increase soil stability, soil fertility and increase land productivity. The purpose of this study was to determine diversity of undergrowth vegetation in teak stands (Tectona grandis Linn.) and environmental factors related to the diversity of undergrowth on teak stands at Ciporos RPH, BKPH Sidareja, KPH Banyumas Barat, Central Java. The research method used was a survey method by sampling using line transects. Data on vegetation diversity of undergrowth were analyzed using Shannon-Wiener diversity index (H ') while the vegetation evenness data was analyzed using Evenness Index (E'). To determine the relationship between environmental factors and undergrowth use Paleontological Statistics (PAST) software analysis. The results showed that the lower ground species found in the Ciporos RPH consisted of 8 species from 7 families. The undergrowth species that has the highest Importance Value Index (INP) is Paspalidium flavidum (Paspalum grass) of the Gramineae family (Poaceae) with 69.21% INP and the lowest is Arum maculatum (Arum flower) of the Araceae family with an INP of 1.38 %. The diversity of undergrowth vegetation in teak stands in RPH Ciporos has a Diversity Index (H ') including moderate and the pattern of distribution of undergrowth species is classified as low. The most environmental factor related to the diversity of u undergrowth vegetation is soil pH. Key Words: diversity; RPH Ciporos; undergrowth Abstrak: Tumbuhan bawah dapat digunakan untuk menggambarkan keadaan tanah yang dapat dilihat secara nyata di lapangan, karena dapat meningkatkan kestabilan tanah, kesuburan tanah dan meningkatkan produktivitas lahan. Tujuan penelitian ini yaitu untuk mengetahui keanekaragaman vegetasi tumbuhan bawah pada tegakan jati (Tectona grandis Linn.) dan faktor lingkungan yang berkaitan dengan keanekaragaman tumbuhan bawah pada tegakan jati pada RPH Ciporos, BKPH Sidareja, KPH Banyumas Barat Jawa Tengah. Metode penelitian yang digunakan adalah metode survey dengan cara pengambilan sampel menggunakan line transect. Data keanekaragaman vegetasi tumbuhan bawah dianalisis menggunakan Indeks keanekaragaman Shannon-Wiener (H’) sedangkan data kemerataan tumbuhan bawah dianalisis menggunakan Indeks Kemerataan (E’). Untuk mengetahui hubungan antara faktor lingkungan dan tumbuhan bawah digunakan analisis Software Paleontological Statistics (PAST). Hasil penelitian menunjukan bahwa spesies tumbahan bawah yang ditemukan di RPH Ciporos terdiri atas 8 spesies dari 7 famili. Spesies tumbuhan bawah yang memiliki Indeks Nilai Penting (INP) tertinggi yaitu Paspalidium flavidum (Rumput Paspalum) dari familia Gramineae (Poaceae) dengan INP 69,21% dan yang terendah yaitu Arum maculatum (Bunga Arum) dari familia Areceae dengan INP Sebanyak 1,38%. Keanekaragaman vegetasi tumbuhan bawah pada tegakan jati di RPH Ciporos memiliki Indeks Keanekaragaman (H’) termasuk sedang dan pola penyebaran spesies tumbuhan bawah tergolong rendah. Faktor lingkungan paling berkaitan dengan keanekaragaman vegetasi tumbuhan bawah yaitu pH tanah. Kata kunci: keanekaragaman vegetasi; RPH Ciporos; tumbuhan bawah
Keanekargaman Spesies Burung di Sekitar Dukuh Sokokembang, Kecamatan Petungkriyono, Kabupaten Pekalongan Wisnumurti, Arya Bahari; Santoso, Joko Santoso Joko; Wibowo, Dwi Nugroho
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 6 No 3 (2024): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.bioe.2024.6.3.12733

Abstract

Indonesia has 1.794 species of birds with 527 of them are endemic in Indonesia. Birds have ecological benefits such as 1) pollinators, 2) pest controller, 3) supports the ecosystem. Eggs, flesh, feathers even nests have economical values that can be used as food, clothes or accessories. The species of bird has a trend of decreasing. Studies of bird species in there habitat need to be done periodly to prevent the trend to continue. The goal of this study is to identify the species of birds near Sokokembang. Observation methode with the point count technique is used in this study in July and December 2022. About 15 species of birds are found with in there are N. bartelsi and H. cyanoventris are found as endemic species. The finding of this study reveal that they are 6% of the findings found in preveous studies with 9 similar species and 6 different species. Ajusting by the conservation status in IUCN and Data Burung Indonesia, 1 species is categorized as Endangred and 14 species are categorized Least Concerned. Information of the species of birds need to be periodly evaluated so the proper act of conservation can be used to maintain the abundance of species of birds in Petungkriyono.
Genetic Diversity of Pacific Seabream, Acanthopagrus pacificus in South-Coast Java, Indonesia Nuryanto, Agus; Bhagawati, Dian; Tuti Winarni, Elly; Wibowo, Dwi Nugroho; Abdalla Mohammed, Mohammed
Biosaintifika: Journal of Biology & Biology Education Vol. 16 No. 2 (2024): August 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v16i2.3627

Abstract

Pacific Seabream, Acanthopagrus pacificus, is a popular marine fish from the Sparidae family. This species is an economically essential fisheries commodity in the south-coast Java, Indonesia. However, limited studies are available on A. pacificus in Indonesia. Only two studies reported the presence of A. pacificus in South-Coast Java. No study has been carried out on the biology of A. pacificus from south-coast Java. Therefore, biological studies of A. pacificus are needed, including genetic diversity studies. This study aimed to evaluate the genetic diversity of A. pacificus in South-Coast Java using the cytochrome c oxidase gene. Fish samples were bought from Bantul Fishing Harbor, Yogyakarta, Panganadaran Fishing Port, Bojongsalawe Fish Auction Center, West Java, and Binuangeun Fishing Harbor in Lebak Regency, Banten. The genetic marker was processed in PT. Genetika Science Indonesia follows the company procedure. Haplotype and nucleotide diversity were calculated mathematically using Arlequin software. The result showed that polymorphic loci were only 1.3%, indicating low polymorphisms. A. pacificus showed haplotype and nucleotide diversities of 0.511±0.110 and 0.15%±0.12%, respectively. Those values indicated low genetic diversity. This study concluded that the A. pacificus population in South-Coast Java showed low genetic diversity. This study provides the first data about the genetic diversity of A. pacificus in South-Coast Java, which is essential data for fisheries management.
Co-Authors Abdalla Mohammed, Mohammed Agus Nuryanto Hexa Apriliana Hidayah Santoso, Joko Santoso Joko Setiayu, Dian Putri Tuti Winarni, Elly Widiyanto, Ody Febri Wisnumurti, Arya Bahari Yani, Edy