班古鲁中部Sidorejo稻田生态系统中蜻蜓种群动态

Gisela Ratna Indriani, Abdul R Singkam
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引用次数: 0

摘要

Sidorejo村的稻田有蜻蜓多样性的潜力。本研究旨在分析Bengkulu Tengah Sidorejo村稻田三种生态系统条件下蜻蜓多样性和丰度的波动。采用巡航法有目的采样。通过特征识别对数据进行描述性分析,获得物种名称。获得物种名称后,计算相对丰度、Shannon wiener多样性指数和物种均匀度指数。研究结果发现,收获生态系统中蜻蜓的多样性和丰度最高(13种,45只)。在3种生态系统中一致发现的物种分别是Orthetrum sabina、O. testaceum和Pantala flavescens。相对丰度最高的种是绿腹草(O. sabina),占32%。多样性指数为1.32(收获后)~ 2.25(收获后)。均匀度指数最高的采后生态系统为0.95,最低的采后生态系统为0.87。本研究的结果将表明,蜻蜓的多样性和丰度取决于稻田的季节性生态系统条件而波动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Population Dynamics of Dragonflies at The Paddy Field Ecosystem, Sidorejo, Central Bengkulu
The rice fields of Sidorejo Village have the potential for dragonfly diversity. This study aims to analyze fluctuations in the diversity and abundance of dragonflies in three ecosystem conditions of rice fields in Sidorejo Village, Bengkulu Tengah. Sampling using purposive sampling with the cruising method. Data analysis was carried out descriptively through the identification of characteristics to obtain the name of the species. After the species name was obtained, the relative abundance, Shannon Wienner diversity index, and species evenness index were calculated. The results of the study found that the harvest ecosystem had the highest diversity and abundance of dragonflies (13 species and 45 individuals). The species that were consistently found in three types of ecosystems were Orthetrum sabina, O. testaceum, and Pantala flavescens. The species with the highest relative abundance was O. sabina with 32%. The diversity index ranged from 1.32 (post-harvest) to 2.25 (harvest). The highest evenness index was in the post-harvest ecosystem at 0.95, and the lowest was in the harvest ecosystem at 0.87. The results of this study are expected to show that the diversity and abundance of dragonflies fluctuate depending on seasonal ecosystem conditions in the rice fields.
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