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温度变化调节了变暖和药物对水生生态系统动态的相互作用影响

Guangjing Qian¹, Dan Wu¹, Lai Zhang¹

¹School of Mathematical Science, Yangzhou University, Yangzhou 225002, China.

Journal of theoretical biology

|September 19, 2024

概括

气候变暖和药品相互作用,破坏水生生态系统的稳定. 每日温度范围的变化显著影响这些效应,影响掠食者-猎物动态和社区稳定性.

科学领域:

生态生态学生态生态学
环境科学环境科学
水生生态系统水生生态系统

背景情况:

气候变暖和制药污染物对水生生态系统产生重大影响.
这些压力因素对人口动态和社区结构的相互作用影响尚不清楚.
药品可以改变物种的胆量,影响生态相互作用.

研究的目的:

调查气候变暖和制药诱导的胆量变化的交互影响,对水生食物链模型.
分析日均温度 (DMT) 和日均温度范围 (DTR) 如何调节这些相互作用.
了解对水生社区稳定性和人口动态的综合影响.

主要方法:

利用经验知情的食物链模型,使用尺寸结构化的鱼类消费者,动物浮游生物猎物和鱼类捕食者.
纳入气候变暖变量:每日平均温度 (DMT) 和昼间温度范围 (DTR).
模拟药物诱导的物种大胆性的变化.

主要成果:

每日平均温度 (DMT) 和高物种大胆性被确定为社区不稳定的主要驱动因素.
互动效应导致了各种结果,包括捕食者崩和周期性人口动态.
每日温度变化 (DTR) 显著调节了互动效应;中等的DTR稳定了社区,而大的DTR破坏了他们的稳定.

结论:

气候变暖和制药污染物协同相互作用,影响水生生态系统.
每日温度范围是一个关键因素,它调解了水生社区在联合压力因素下的稳定性.
进一步的研究对于量化多种环境压力因素对水生生态系统的累积影响至关重要.

关键词:

人类造成的干扰人类造成的干扰水生生态系统水生生态系统生命史的特征生命史的特征多重压力因素造成的压力.稳定的稳定性稳定的稳定性

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