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首页> 外文期刊>Estuarine Coastal and Shelf Science >Does beach nourishment have long-term effects on intertidal macroinvertebrate species abundance?
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Does beach nourishment have long-term effects on intertidal macroinvertebrate species abundance?

机译：海滩营养对潮间带大型无脊椎动物物种的丰度有长期影响吗？

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摘要

Coastal squeeze is the largest threat for sandy coastal areas. To mitigate seaward threats, erosion and sea level rise, sand nourishment is commonly applied. However, its long-term consequences for macro-invertebrate fauna, critical to most ecosystem services of sandy coasts, are still unknown. Seventeen sandy beaches - nourished and controls - were sampled along a chronosequence to investigate the abundance of four dominant macrofauna species and their relations with nourishment year and relevant coastal environmental variables. Dean's parameter and latitude significantly explained the abundance of the spionid polychaete Scolelepis squamata, Beach Index (BI), sand skewness, beach slope and latitude explained the abundance of the amphipod Haustorius arenarius and Relative Tide Range (RTR), recreation and sand sorting explained the abundance of Bathyporeia sarsi. For Eurydice pulchra, no environmental variable explained its abundance. For H. arenarius, E. pulchra and B. sarsi, there was no relation with nourishment year, indicating that recovery took place within a year after nourishment. Scolelepis squamata initially profited from the nourishment with "over-recolonisation". This confirms its role as an opportunistic species, thereby altering the initial community structure on a beach after nourishment. We conclude that the responses of the four dominant invertebrates studied in the years following beach nourishment are species specific. This shows the importance of knowing the autecology of the sandy beach macroinvertebrate fauna in order to be able to mitigate the effects of beach nourishment and other environmental impacts.
机译：沿海挤压是沙质沿海地区的最大威胁。为了减轻向海的威胁，侵蚀和海平面上升，通常采用沙养。然而，对于沙质沿海大多数生态系统服务至关重要的大型无脊椎动物来说，其长期后果仍然未知。沿时间顺序对17个沙滩（营养丰富和控制丰富的沙滩）进行了采样，以调查4种主要大型动物的丰度及其与营养年和相关沿海环境变量的关系。迪恩（Dean）的参数和纬度显着说明了鳞甲多毛鱼类Scolelepis squamata的丰度，海滩指数（BI），砂偏度，海滩坡度和纬度说明了两栖类Haustorius arenarius和相对潮汐范围（RTR）的丰富程度，休闲和沙分表明了大量的巴氏孢子虫。对于Eurydice pulchra，没有任何环境变量可以解释其丰富性。对于H. arenarius，E。pulchra和B. sarsi，与营养年没有关系，表明恢复发生在营养后一年内。 Scolelepis squamata最初通过“过度定殖”从营养中获利。这证实了其作为机会物种的作用，从而在营养后改变了海滩上的初始群落结构。我们得出的结论是，在海滩营养后的几年中研究的四种主要无脊椎动物的反应是特定于物种的。这表明了了解沙滩大型无脊椎动物动物区系的重要性，以便能够减轻沙滩营养和其他环境影响的影响。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2012年第10期|p.172-181|共10页
  • 作者

    Lies Leewis; Peter M. van Bodegom; Jelte Rozema; Gerard M. Janssen;

  • 作者单位

    VU University Amsterdam, Faculty of Earth and Life Sciences, Dept Systems Ecology, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands;

    VU University Amsterdam, Faculty of Earth and Life Sciences, Dept Systems Ecology, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands;

    VU University Amsterdam, Faculty of Earth and Life Sciences, Dept Systems Ecology, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands;

    VU University Amsterdam, Faculty of Earth and Life Sciences, Dept Systems Ecology, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands,Rijkswaterstaat, Centre for Water Management, Zuiderwagenplein 2, 8224 AD Lelystad, The Netherlands;

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  • 正文语种 eng
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  • 关键词

    beach nourishment; recovery; sandy beaches; macroinvertebrates; intertidal environment;

    机译：海滩营养;复苏;沙滩大型无脊椎动物潮间环境;

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