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土壤盐化和化学介导的植物-昆虫相互作用在一个不断变化的气候

Andrea Marroquin¹, Katherine Holmes¹, Diego Salazar²

¹Florida International University, International Center of Tropical Botany, Institute of Environment, Department of Biological Sciences, Miami, FL, USA.

Current opinion in insect science

|October 15, 2023

概括

气候变化引起的土壤盐化改变了植物化学,威胁到昆虫的生物多样性. 了解这些植物与昆虫的相互作用对于保护工作至关重要.

科学领域:

生态生态学生态生态学
环境科学环境科学
生物化学生物化学

背景情况:

由于气候变化,全球土壤盐化正在增加,影响了植物生理和化学.
这些植物变化对昆虫的生物多样性构成间接威胁,特别是那些依赖特定植物资源的昆虫.
现有的研究主要集中在农业草食动物上,对授粉者和寄生虫的数据有限.

研究的目的:

通过植物化学变化,探索土壤盐化对昆虫生物多样性的间接影响.
突出需要研究将植物代谢变化与更高的营养水平联系起来.
发现有关盐度对非食草昆虫,如授粉者和寄生虫的影响的研究缺口.

主要方法:

文献综述侧重于盐度对植物特种代谢物的影响以及随后对昆虫的影响.
对植物中与抗压力和草食动物防御相关的保存代谢途径的分析.
综合关于在盐化压力下植物-昆虫相互作用的当前知识.

主要成果:

盐度显著改变了植物生长,生理学和专门的代谢物.
植物化学的变化可预见地会影响食草动物,这是由于保存的途径,但存在特定物种的变化.
关于盐度对授粉者和寄生虫的影响的数据仍然很少.

结论:

土壤盐化对通过植物介导的影响对整体昆虫生物多样性构成重大,未经研究的威胁.
未来的研究必须调查植物化学,以了解对各种昆虫群体的影响,包括授粉者和寄生虫.
弥合植物和昆虫对盐化反应之间的知识差距对于生态保护至关重要.

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