Blue consequences of the green bioeconomy: clear-cutting intensifies the harmful impacts of land drainage on stream invertebrate biodiversity

1. Growing bioeconomy is increasing the pressure to clear-cut drained peatland forests. Yet, the cumulative effects of peatland drainage and clear-cutting on the biodiversity of recipient freshwater ecosystems are largely unknown.

2. We studied the isolated and combined effects of peatland drainage and clear-cutting on stream macroinvertebrate communities. We further explored whether the impact of these forestry-driven catchment alterations to benthic invertebrates is related to stream size. We quantified the impact on invertebrate biodiversity by comparing communities in forestry-impacted streams to expected communities modelled with a multi-taxon niche model.

3. The impact of clear-cutting of drained peatland forests exceeded the sum of the independent effects of drainage and clear-cutting, indicating a synergistic interaction between the two disturbances in small streams. Peatland drainage reduced benthic biodiversity in both small and large streams, whereas clear-cutting did t...

1. 日益发展的生物经济（Bioeconomy）正加剧对已排水泥炭地（Peatland）森林进行皆伐（Clear-cutting）的压力。然而，泥炭地排水与皆伐对受纳淡水生态系统生物多样性的累积效应仍知之甚少。

2. 本研究探究了泥炭地排水与皆伐对溪流大型无脊椎动物群落（Stream Macroinvertebrate Communities）的单独及联合效应。我们进一步探讨了这些由林业驱动的集水区（Catchment）改变对底栖无脊椎动物（Benthic Invertebrates）的影响是否与溪流尺寸相关。通过将受林业影响溪流中的群落与基于多类群生态位模型（Multi-taxon Niche Model）模拟的预期群落进行比较，我们量化了其对无脊椎动物生物多样性的影响。

3. 已排水泥炭地森林的皆伐影响超过了排水与皆伐独立效应之和，表明在小型溪流中这两种干扰存在协同作用（Synergistic Interaction）。泥炭地排水降低了小型与大型溪流中的底栖生物多样性，而皆伐则未...