雨林的转型将能源从绿色转移到棕色食物网
Anton M Potapov1,2,3, Jochen Drescher4, Kevin Darras5
1Animal Ecology, University of Göttingen, Göttingen, Germany. potapov.msu@gmail.com.
Nature
|February 14, 2024
概括
热带土地使用的变化极大地改变了动物的食物网. 生物多样性丧失会改变能源流动,将地下生态系统从真菌转变为细菌能量通道,并影响土壤健康.
科学领域:
- 生态学
- 热带生物
- 生物多样性研究
背景情况:
- 由于土地使用的变化,陆地动物的生物多样性正在全球范围内下降.
- 对巨大多样化的热带生态系统的功能和能量影响尚不清楚.
研究的目的:
- 评估地面和地下动物食物网的能量流变化.
- 为了比较热带雨林与印度尼西亚苏门答腊的种植园的能源道.
主要方法:
- 在"绿色" (树冠关节动物,鸟类) 和"棕色" (土壤关节动物,虫) 食物网中研究的能量流.
- 雨林与棕油和种植园进行比较,包括农林.
主要成果:
- 热带雨林主要通过关节动物,
- 植物表现出相似或更高的总能量流,但将能量主导转移到虫 (地).
- 土地利用变化减少了地面上的多层能量流,并显著减少了地下的能量转移到更高的食物层.
结论:
- 热带土地利用变化导致了动物食物网的深刻能源和功能重组.
- 在地下食物网中能量通道的转变和土壤有机物消耗与土壤碳消耗相关.
- 生物多样性丧失与这些显著的生态系统级能量变化密切相关.
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