空间显式全球变化诱导过程对植物-昆虫网络的预测社区后果
Hsi-Cheng Ho1,2, Florian Altermatt1,3
1Department of Aquatic Ecology Swiss Federal Institute of Aquatic Science and Technology (Eawag) Dübendorf Switzerland.
Ecology and evolution
|September 17, 2024
概括
全球变化对植物昆虫相互作用的影响取决于空间因素. 空间显式模型揭示了Lepidoptera群落的局部脆弱性,并在灭绝和扩张场景下改变了植物竞争.
科学领域:
- 生态生态学 生态生态学
- 生物地理学 生物地理学 生物地理学
- 保护生物学 保护生物学
背景情况:
- 植物-昆虫营养系统对空间共同发生非常敏感.
- 全球变化可以通过物种灭绝和范围扩张来破坏这些相互作用.
- 了解这些动态需要空间明确的方法.
研究的目的:
- 在全球变化场景下预测虫植物群落的生物地理.
- 评估植物灭绝和白虫扩散对相互作用网络的级联影响.
- 为了比较空间显式与隐式建模方法.
主要方法:
- 在德国巴登-维特堡,利用了423种类虫和848种食用植物的空间分辨率数据.
- 进行了区域与隔离驱动的植物灭绝和随机,向北或向上的Lepidoptera扩张的模拟.
- 评估基于社区组成和奖杯关系的互动网络的影响.
主要成果:
- 斑黄对二次灭绝的强度有所不同:对于区域丰富而言,在孤立驱动的植物灭绝中更高,但对于平均局部丰富而言更低.
- 孤立驱动的植物灭绝在巴登-维尔堡中部特别脆弱的白类.
- 斑马的扩散减少了植物的功能距离,表明竞争增加,特别是随机或向北移动.
结论:
- 景观规模的社区组成背景对于评估全球变化对互动系统的影响至关重要.
- 空间显式建模揭示了区域视角错过的局部后果.
- 保护战略必须考虑物种和息地的空间安排.
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