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Habitat and Nest Characteristics of Javan Hawk-eagle (Nisaetus bartelsi Stresemann 1924) in Gunung Salak 1 Resort Area of Gunung Halimun Salak National Park Febryan , Febryan; Prihatini, Wahyu; Rahayu, Sata Yoshida Srie
Journal of Tropical Biodiversity Vol 4 No 3 (2024): August 2024
Publisher : Universitas Nasional Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59689/bio.v4i3.234

Abstract

The Javan Hawk-eagle Nisaetus bartelsi is a protected bird of prey endemic to Java Island and is one of Indonesia's mascot fauna. The survival of this species in nature is threatened, among others due to habitat degradation, and land use change around its habitat. This study was conducted to analyze the presence and characteristics of nests and the habitat around Javan eagle nests in the Gunung Salak 1 Resort area within the Gunung Halimun Salak National Park. The research was conducted using the Direct Observation method, with parameters namely characteristics of nest trees, and nests, as well as biotic and abiotic environments around Javan eagle nests. The results found the presence of active Javan eagle nests in the Hameurang Valley block in the Sintok area, and the Curug Cibadak block in the Loji area. The nest in Sintok was found in a beunying tree (Ficus fistulosa) in a natural forest, at 1,097 m above sea level. Nests in Loji were found in rasamala (Altingia excelsa) trees in the natural forest, at 1,347 m asl. The nest is located at the height of 15-22 m from the ground, round in shape, the nest material is epiphytic plants, branches of puspa (Schima wallichii), rasamala (Altingia excelsa), and manii (Maesopsis eminii). The plant around the nest with the highest INP in Sintok is the manii tree (Maeopsis emini), while in Loji it is the seuhang tree (Ficus grossulariodes).
Evaluasi Keragaman Fauna Avertebrata DAS Cisadane untuk Konservasi Lahan Basah Kota Bogor Prihatini, Wahyu; Sudrajat, Cecep
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 9, No 1 (2024): February 2024
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v9i1.6857

Abstract

Lahan basah merupakan ekosistem perairan darat yang berperan penting memsok air bagi kebutuhan manusia. Penurunan kualitas perairan sungai akan berdampak terhadap keragaman jenis fauna avertebrata di ekosistem tersebut. Daerah Aliran Sungai (DAS) Cisadane merupakan aliran sungai besar, dengan daerah tangkapan air seluas 1.100 km2. Salah satu cara menilai kualitas air sungai secara biologi adalah melalui analisis makroavertebrata, karena kepekaannya terhadap bahan pencemar. Penelitian ini ditujukan untuk konservasi DAS Cisadane melalui analisis keragaman dan kelimpahan makroavertebrata. Pengambilan data dilakukan pada empat stasiun pengamatan, yaitu area Maseng (stasiun I), Pamoyanan Sari (stasiun II), Cibalagung (stasiun III), dan Bubulak (stasiun IV). Penelitian ini berhasil mengidentifikasi 21 spesies avertebrata, dengan tiga spesies paling melimpah, yaitu Pantala flavescenes (capung ciwet), Parathelphusa convexa (ketam/yuyu sawah), dan Lumbricina (cacing tanah). Tingkat keragaman spesies avertebrata secara keseluruhan termasuk dalam kategori keragaman sedang (indeks H’= 1,93). Tingkat keragaman spesies, dan kelimpahan spesies avertebrata ke arah hilir DAS Cisadane semakin menurun, berdasarkan kriteria indeks keragaman Shannon-Wienner, dan kelimpahan relatif spesies. Kualitas air sungai Cisadane terindikasi tercemar ringan-sedang di stasiun I, II, III, dan tercemar sedang-berat di stasiun IV.