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全球昆虫食草及其对气候变化的反应

Mu Liu¹, Peixi Jiang¹, Jonathan M Chase²

¹State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, College of Ecology, Lanzhou University, 730000 Lanzhou, P.R. China.

Current biology : CB

|May 22, 2024

概括

全球昆虫草食在空间上有所不同,土壤特性影响草本植物,气候影响木质植物. 未来的气候变化可能会加剧全球草本植物的食草动物压力.

科学领域:

生态生态学生态生态学
环境科学环境科学
全球变化生物学

背景情况:

草食昆虫是陆地生态系统中能量流动和植物社区动态的关键驱动因素.
昆虫食草的全球模式及其环境驱动因素尚未得到充分理解,这阻碍了准确的生态预测.

研究的目的:

量化昆虫食草的全球模式,并确定关键的环境决定因素.
在气候变化场景下预测昆虫草食的未来变化.

主要方法:

编制和分析了来自自然社区的9,682个昆虫草食记录的全球数据集.
利用全球地图和统计分析来识别空间模式和环境预测因素.
采用未来的气候变化场景来预测草食模式的变化.

主要成果:

昆虫草食在全球范围内显示出显著的空间变化,草本植物 (没有显著的趋势) 和木质植物 (随着度的增加) 具有明显的度模式.
土壤的阴子交换能力是草本植物的主要预测因素,而气候则是木质植物的主导因素.
预计在未来气候变化下,全球草本植物和木质植物的特定生物群体的草食压力将会加剧.

结论:

环境条件,包括土壤特性和气候,在很大程度上影响了全球昆虫食草模式.
预计未来的气候变化将改变食草动物压力,可能增加植物群落和生态系统功能的脆弱性.
这项研究为预测人类时代的生态反应提供了关键的定量见解.

关键词:

生物相互作用生物相互作用气候变化气候变化气候变化增长的形式增长的形式度草本动物假设度草本动物假设机器学习是机器学习.随机森林算法随机森林算法

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