Mutiara Desma Auliya Ramadhanty, Nova Hariani, Mukhlis Mukhlis

KEANEKARAGAMAN SERANGGA ARBOREAL DI KAWASAN KAMPUS UNIVERSITAS MULAWARMAN KOTA SAMARINDA

Introduction

Keanekaragaman serangga arboreal di kawasan kampus universitas mulawarman kota samarinda. Penelitian keanekaragaman serangga arboreal di Kampus Universitas Mulawarman, Samarinda. Mengidentifikasi 30 spesies dari 6 ordo, menganalisis indeks keanekaragaman, kemerataan & dominansi. Menyoroti pentingnya RTH.

Abstract

Tingginya angka pembangunan gedung di sekitar kampus Universitas Mulawarman mengakibatkan turunnya keanekaragaman hayati karena berkurangnya lahan terbuka hijau. (RTH). Penelitian ini bertujuan untuk mengidentifikasi jenis serangga arboreal yang ditemukan di Kampus Universitas Mulawarman serta untuk mengetahui nilai indeks keanekaragaman, kemerataan, dan dominansi serangga arboreal di kawasan tersebut. Penelitian ini dilaksanakan pada bulan Februari hingga Maret 2023 di kawasan Kampus Universitas Mulawarman. Pengambilan sampel dilakukan menggunakan metode transek dengan menelusuri area kampus, dan pengambilan sampel serangga dilakukan menggunakan insect net. Hasil penelitian menunjukkan bahwa serangga arboreal yang ditemukan berasal dari 6 ordo, yaitu Coleoptera, Hemiptera, Hymenoptera, Lepidoptera, Odonata, dan Orthoptera, yang terdiri atas 13 famili dengan 30 spesies. Nilai indeks keanekaragaman (H’) pada pagi hari sebesar 2,072 dan sore hari sebesar 1,885, yang menunjukkan kategori sedang. Nilai indeks kemerataan (E) pada pagi hari sebesar 0,636, termasuk kategori tinggi, dan sore hari sebesar 0,593, termasuk kategori sedang. Sementara itu, nilai indeks dominansi (C) pada pagi hari sebesar 0,226 dan sore hari sebesar 0,392, yang menunjukkan bahwa tidak ada spesies yang mendominasi. Hasil indeks keanekaragaman menunjukkan bahwa perlu diperhatikan keberadaan RTH agar keanekaragaman serangga arboreal lebih tinggi dan jumlah individunya banyak.

Review

This study investigates arboreal insect diversity within the Mulawarman University campus in Samarinda, addressing a highly relevant topic concerning the impact of urban development on biodiversity. The research clearly aims to identify specific insect species and quantify key ecological indices (diversity, evenness, and dominance), providing valuable baseline data for understanding the ecological health of urban green spaces. The findings, indicating moderate diversity and the absence of dominant species, offer important insights into the current state of this specific ecosystem amidst ongoing urban expansion, underscoring the pressing need for such ecological assessments. The methodology, employing a transect method and insect net sampling over two distinct diurnal periods (morning and afternoon), appears appropriate for assessing arboreal insect communities. The successful identification of 30 species across 13 families and 6 orders (Coleoptera, Hemiptera, Hymenoptera, Lepidoptera, Odonata, and Orthoptera) provides a robust foundation for the ecological analysis. The detailed presentation of diversity (H'), evenness (E), and dominance (C) indices for both sampling periods is a particular strength, offering a nuanced view of the community structure and revealing a moderately diverse yet relatively evenly distributed insect community. The study's concluding emphasis on the necessity of maintaining and enhancing RTH (open green spaces) is a crucial and timely take-home message, directly linking the research findings to practical conservation efforts within urban environments. This recommendation directly supports sustainable campus planning and broader urban ecological management strategies. While providing valuable snapshot data, this research also implicitly opens avenues for future investigations, such as longitudinal studies to track changes over time or comparative studies across different levels of urbanization. Overall, this research makes a valuable contribution to urban ecology, highlighting the delicate balance required between developmental progress and biodiversity preservation.

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