营养物质如何调解全球变化对虫爆发的影响
1School of Sustainability, School of Life Sciences, and Global Locust Initiative, Arizona State University, Tempe, Arizona, USA;
Annual review of entomology
|January 25, 2024
概括
植物质量,而不仅仅是,影响虫种群. 低含量植物通过支持迁移有利于虫,这表明密集地使用可能会促进疫情爆发.
科学领域:
- 生态生态学 生态生态学
- 昆虫学 昆虫学是一门学科.
- 农业 农业 农业 农业
背景情况:
- 虫疫情对全球粮食安全构成重大威胁.
- 植物营养成分是草食群动态的一个关键因素,但它与虫的关系是复杂的.
- 土地利用,气候变化,食草动物营养状况和营养提取能力等因素影响植物质量.
研究的目的:
- 挑战传统观点,即更高的植物 (N) 总是等同于更好的食草动物表现.
- 研究植物质量,营养含量和虫种群动态之间的细微关系.
- 识别可能促进虫爆发的环境因素.
主要方法:
- 关于虫和虫与植物相互作用的实验室和实地研究的五十年全面审查.
- 分析植物营养素和反营养素资料对草食动物表现的影响.
- 评估,蛋白质和碳水化合物比例在植物质量中的作用.
主要成果:
- 将植物度与植物质量等同是误导性的;虫对增加植物N.表现出中性或负面反应.
- 低气环境对虫有利,为迁徙提供必要的高能量率.
- 预计密集的土地利用和大气二氧化碳水平的升高,降低了植物蛋白质:碳水化合物比率,将促进虫爆发.
结论:
- 虫的植物质量取决于营养素,抗营养素和草食动物生理学的复杂相互作用,而不仅仅取决于含量.
- 低条件可能有利于虫迁徙和疫情爆发.
- 改变植物营养特征的农业和环境管理实践需要仔细考虑,以减轻虫爆发风险.
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