Diversity of Arthropod Predator in Swamp Rice Fields in South Sumatera

Abstract

Diversity of arthropod predator in swamp rice fields in South Sumatera. The abundance and diversity of arthropod in agro ecosystem depend on the level of synthetic pesticide contamination. This study aimed to explore, identify and analyze the diversity and abundance of predatory arthropods in swamp rice fields treated with pesticide application (in Pemulutan) and without pesticide application (in Musi 2). The swamp rice fields in Pemulutan are bordered by village, river and forest. The methods were survey and direct observation on 3 ha and 2 ha of swamp rice fields in Pemulutan and Musi 2, Palembang. Sampling of predatory arthropods were conducted at 20, 50, 80 and 110 days after rice planting using pitfall trap. Identification of predatory arthropods was conducted at Laboratory of Entomology showing that the arthropod collected consisted of 17 species of insects and 9 species of Arachnida. In Pemulutan Ogan Ilir were found 19 species (10 species of insect and 9 species of Arachnida) at the village area. In the area that was bordered by river were found 8 species (7 insect and 1 Arachnida). In the area bordered by forest were found 22 species (10 species of insects and 12 species of Arachnida). The diversity level, number of species, and arthropod specimen in the field without pesticide application at Musi 2 were higher than those in the fields with pesticide application in Pemulutan. ABSTRAK Keanekaragaman artropoda predator sebagai bioindikator kesehatan tanah di sawah lebak di Sumatera Selatan.Kelimpahan dan keanekaragaman artropoda di agroekosistem sangat dipengaruhi oleh cemaran insektisida sintetik. Penelitian ini bertujuan untuk mengeksplorasi, mengidentifikasi dan menganalisis keanekaragaman dan kelimpahan Artropoda predator di pematang sawah lebak yang diaplikasikan pestisida (di Pemulutan) berbatasan dengan perkampungan, sungai dan hutan, serta pematang sawah lebak tanpa aplikasi pestisida (di Musi 2). Metode penelitian adalah survei pada pematang sawah lebak di Pemulutan Ogan Ilir seluas 3 ha dan Musi 2 Kota Palembang seluas 2 ha. Pengambilan sampel Artropoda predator dilakukan pada saat tanaman padi berumur 20, 50, 80 dan 110 hari setelah tanam (hst) dengan menggunakan pitfall trap. Identifikasi Artropoda predator dilakukan di Laboratorium Entomologi, Balai Karantina Kelas I Palembang. Pada lokasi Musi 2 ditemukan 26 spesies Artropoda predator di pematang sawah, terdiri dari 17 spesies dari kelas Insekta dan 9 spesies dari kelas Arachnida. Di lokasi penelitian Pemulutan Ogan Ilir, yaitu lahan yang berbatasan dengan perkampungan ditemukan sebanyak 19 spesies (10 spesies dari kelas Insekta dan 9 spesies dari kelas Arachnida). Lahan yang berbatasan dengan sungai ditemukan sebanyak 8 spesies (7 spesies dari kelas Insekta dan 1 spesies dari kelas Arachnida). Di lahan sawah yang berbatasan dengan hutan ditemukan sebanyak 22 spesies (10 spesies dari kelas Insekta dan 12 spesies dari kelas Arachnida). Tingkat keanekaragaman, jumlah spesies dan spesimen Artropoda predator yang ditemukan di pematang sawah pada ...

Biodiversity in Swamp Ecosystem in Sukamaju Village, Malind District, Merauke Regency, South Papua Province, Indonesia

“…The use of peat around Sukamaju village, Malind District and its surroundings for crops dramatically affects the composition of arthropods (Fasla, 2021) and biodiversity. This agricultural activity is mainly due to chemical fertilizers and pesticides (Meidalima et al, 2018). The causes of loss of peatland biodiversity are habitat loss, invasion of foreign species, over-exploitation for agriculture, forestry and peat extraction, nutrient pollution and climate change.…”