Pak J Biol Sci. 2021 Jan;24(1):25-34. doi: 10.3923/pjbs.2021.25.34.
Predatory arthropods may play a crucial role in decreasing the pest population that causes a significant loss in oil palm production. In this study, we investigated the diversity of predatory arthropods and their abundance on immature and mature oil palm plantation grown in Aceh Tamiang, Sumatra, Indonesia.
Arthropod predators were collected by using light trap, yellow-pan trap and pitfall trap that were placed on an immature and mature oil palm plantation. Specimens were sorted and identified in the Laboratory.
The results showed that there were 674 individuals arthropod predators (insects and spiders) consisted of 7 orders, 22 families and 37 morphospecies collected in the immature plantation. While in mature plantation, arthropod predators found were 740 individuals consisted of 6 orders 23 families and 42 morphospecies. Ants (Hymenoptera: Formicidae) dominated other families regarding morphospecies and individual numbers. There was no significant difference in term of species richness and abundance of predators between both phases of the plantation which implied that the two plantations hosted a similar composition and abundance of predators. The diversity indices of predators calculated in both plantations showed that the predators were categorized as middle level of diversity and middle level of individual distribution, However, the community is unstable.
Our results suggested that predatory predators were present in similar structure in both phases of oil palm plantations. Efforts to conserve them are needed to enhance their performance as part of a sustainable and environmentally friendly method for controlling pests in oil palm plantation.
掠食性节肢动物在降低导致油棕生产重大损失的害虫种群方面可能发挥着至关重要的作用。在这项研究中，我们调查了印度尼西亚苏门答腊亚齐塔米亚ang 种植的未成熟和成熟油棕种植园中掠食性节肢动物的多样性及其丰度。
使用灯光陷阱、黄色诱捕器和陷阱收集节肢动物捕食者，这些陷阱放置在未成熟和成熟的油棕种植园中。将标本在实验室中进行分类和鉴定。
结果表明，在未成熟的种植园中收集到了 674 只节肢动物捕食者（昆虫和蜘蛛），它们由 7 个目、22 个科和 37 个形态种组成。而在成熟的种植园中，共发现 740 只节肢动物捕食者，由 6 个目、23 个科和 42 个形态种组成。在形态种和个体数量方面，蚂蚁（膜翅目：蚁科）是其他科的优势种。两个种植园之间的捕食者物种丰富度和丰度没有显著差异，这表明两个种植园都拥有相似的捕食者组成和丰度。在两个种植园中计算的捕食者多样性指数表明，捕食者被归类为中等水平的多样性和中等水平的个体分布，但群落不稳定。
我们的研究结果表明，在油棕种植园的两个阶段中，捕食性捕食者的结构相似。需要努力保护它们，以增强它们作为可持续和环保的害虫控制方法的一部分的性能。
