Metamorfosa:Journal of Biological Sciences 6(2): 156-164 (September 2019) DOI: 10.24843/metamorfosa.v06.i02.p04 https://ojs.unud.ac.id/index.php/metamorfosa/article/view/51786 J U R N A L M E T A M O R F O S A Journal of Biological Sciences eISSN: 2655-8122 http://ojs.unud.ac.id/index.php/metamorfosa 156 Diversitas Serangga Hutan Tanah Gambut Di Palangkaraya Kalimantan Tengah Insect Diversity At Peat Forest In Palangkaraya, Central Kalimantan Julian Tambunan*, I Ketut Ginantra, Ni Luh Watiniasih Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana *Email: julian.tambunan@yahoo.com , ginketut96@gmail.com, watiniasil@gmail.com INTISARI Penelitian ini bertujuan untuk mengetahui keragaman serangga (insecta) dan tumbuhan yang digunakan sebagai habitat di hutan tanah gambut yang tidak pernah terbakar dan pernah terbakar di Palangkaraya, Kalimantan Tengah. Metode pengambilan sampel yaitu dengan teknik Beating, sweeping net, pitfall traps, dan light traps. Untuk melihat perbedaan jenis diantara dua habitat, ditentukan berdasarkan indeks kesamaan atau index similarity (IS), sedangkan untuk mengetahui indek keragaman serangga yang dikoleksi dihitung dengan menggunakan persamaan dari Shanon-Weiner (H’). Hasil penelitian mendapatkan insekta sebanyak 51 famili dari 12 ordo dengan total 551 individu pada hutan tidak pernah terbakar dan 38 famili dari 10 ordo dengan total 431 individu pada hutan pasca terbakar. Insekta yang mendominasi kedua habitat adalah famili Formicidae dari ordo Hymenoptera. Indeks keragaman hutan pasca terbakar dan hutan tidak pernah terbakar menunjukan indeks diversitas tinggi, dengan nilai H’=3,11, sedangkan hutan tidak pernah terbakar nilai H’ = 3,45. Perhitungan menggunakan indeks similariti menunjukan IS > 50 %, dimana indeks kesamaan insekta tergolong tinggi. Kekayaan jenis tumbuhan pada hutan sudah terbakar didapatkan 9 jenis pohon, sedangkan hutan tidak pernah terbakar didapatkan 38 jenis tumbuhan yang digunakan sebagai habitat serangga. Kata kunci : Serangga, diversitas, hutan tidak terbakar, hutan pernah terbakar ABSTRACT This study aims to determine the diversity of insects and plants used as a habitat in unburned and previously burned peat land forests in Palangkaraya, Central Kalimantan. Insects were collected by beating the branches of plants, aerial sweeping, pitfall traps and light traps. Plants were identified in situ or plant samples were collected and identified later in the Lab. The diversity of insects were compared between unburned and previously burned peat forests by analyzing its index diversity (H’) and index of similarity (IS). In total, the insects collected from unburned peat forest were 551 individual, belongs to 12 order and 51 families, and 431 individual insects were collected from previously burned peat forest which belongs to 10 order and 38 families. The family of insects that most frequently found at both areas was Formicidae (Hymenoptera). The insects diversity of both forests were still high, that is H' = 3,45 of unburned peat forest and H '= 3,11 of previously burned peat forest, with the similarity index IS > 50% of both peat forests. The number of plant species found was higher in unburned peat forest (38 species) than in previously burned peat forest (9 species). The previously burned forest was dominated by Acacia plants, while in unburned peat forest the plants seem to evenly spread. Keywords: Insect, diversity, peat forest, unburned forest, previously burned forest