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首页> 外文期刊>Conservation Biology >Diverging response patterns of terrestrial and aquatic species to hydromorphological restoration
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Diverging response patterns of terrestrial and aquatic species to hydromorphological restoration

机译：陆地和水生物种对水性恢复的反应模式

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Although experiences with ecological restoration continue to accumulate, the effectiveness of restoration for biota remains debated. We complemented a traditional taxonomic analysis approach with information on 56 species traits to uncover the responses of 3 aquatic (fish, macroinvertebrates, macrophytes) and 2 terrestrial (carabid beetles, floodplain vegetation) biotic groups to 43 hydromorphological river restoration projects in Germany. All taxonomic groups responded positively to restoration, as shown by increased taxonomic richness (10-164%) and trait diversity (habitat, dispersal and mobility, size, form, life history, and feeding groups) (15-120%). Responses, however, were stronger for terrestrial than aquatic biota, and, contrary to our expectation, taxonomic responses were stronger than those of traits. Nevertheless, trait analysis provided mechanistic insights into the drivers of community change following restoration. Trait analysis for terrestrial biota indicated restoration success was likely enhanced by lateral connectivity and reestablishment of dynamic processes in the floodplain. The weaker response of aquatic biota suggests recovery was hindered by the persistence of stressors in the aquatic environment, such as degraded water quality, dispersal constraints, and insufficient hydromorphological change. Therefore, river restoration requires combined local- and regional-scale approaches to maximize the response of both aquatic and terrestrial organisms. Due to the contrasting responses of aquatic and terrestrial biota, the planning and assessment of river restoration outcomes should consider effects on both components of riverine landscapes.
机译：虽然生态恢复的经验继续积累，但生物群恢复的有效性仍然讨论。我们补充了传统的分类学分析方法，提供有关56种特征的信息，以发现德国43个水平（Carabid Beetles，Plangpline）生物学群中的3种水生（鱼，大型脊椎动物，宏体）和2个陆地（Carabid Beetles，Flackplinain）生物学群的反应。所有分类群体均响应恢复，如增加的分类法（10-164％）和特质多样性（栖息地，分散和移动，规模，形式，寿命历史和喂养组）所示（15-120％）所示。然而，陆地的反应比水生生物群更强，与我们的期望相反，分类学反应比特质强。尽管如此，特质分析为恢复后社区变革的驱动程序提供了机械洞察力。横向连通性和重建洪泛平原的动态过程，可能会提高地面生物群的特质分析。水生Biota的反应较弱表明恢复受到水生环境中的压力源的持续存在的阻碍，如降低的水质，分散约束和水平形式变化不足。因此，河流恢复需要组合的本地和区域规模的方法来最大限度地提高水生和陆生物体的反应。由于水生和陆地生物群的对比应答，河流恢复结果的规划和评估应考虑对河流景观的两种组成部分的影响。

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