随着油棕种植年龄的长期变化,宿主-寄生虫食物网的结构变得简单
Akhmad Rizali1, Sri Karindah1, Nur Ainy1
1Faculty of Agriculture, Department of Plant Pests and Diseases, University of Brawijaya, Malang, East Java, Indonesia.
PloS one
|October 10, 2023
概括
油棕树的年龄简化了宿主-寄生虫食物网,减少了物种和相互作用. 这影响了农业生态系统中的生物控制服务,需要进行区域研究以有效管理害虫.
科学领域:
- 农业生态学 农业生态学
- 昆虫学 昆虫学是一门学科.
- 生态生态学 生态生态学
背景情况:
- 宿主-寄生虫相互作用对于农业生态系统中的害虫管理至关重要.
- 油棕种植园代表着巨大的单一种植,可能对生物多样性产生影响.
- 了解食物网的动态是可持续农业实践的关键.
研究的目的:
- 为了研究油棕树年龄对宿主寄生虫食物网结构的影响.
- 为了比较印度尼西亚不同地理区域的食物网结构.
- 评估对棕油种植园生物控制服务的影响.
主要方法:
- 在印度尼西亚中部加利曼坦和詹比地区,对各种油棕树年龄 (3-18岁) 的虫幼虫和寄生虫黄蜂进行实地观测.
- 采用手工采集和雾化方法,根据树的高度进行昆虫采样.
- 分析了食物网结构,包括物种丰富性,链接密度和相互作用多样性.
主要成果:
- 在中加利曼丹确定了32种类鸟和16种寄生虫,在詹比发现了12种类鸟和11种寄生虫.
- 发现油棕树的年龄与物种丰富性,链接密度和相互作用多样性之间存在负相关性.
- 观察到食物网结构的区域差异,中加利曼丹的物种丰富性和相互作用多样性更高.
结论:
- 油棕种植园的长期变化导致宿主-寄生虫食物网的简化.
- 树木的年龄显著影响这些食物网的复杂性,影响生物控制潜力.
- 为了了解油棕单一种植的生态后果,必须进行长期的,地理上多样化的研究.
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