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Hydrologic controls and anthropogenic drivers of the zebra mussel invasion of the Mississippi-Missouri river system

机译：斑马贻贝入侵密西西比-密苏里河系的水文控制和人为驱动因素

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摘要

[1] We propose a novel ecohydrological model for the invasion of inland waters by the zebra mussel Dreissena polymorpha and test it against field data gathered within the Mississippi-Missouri river system in North America. This biological invasion poses major ecological and economic threats, especially due to the huge population densities reached by local zebra mussel colonies and the species' unparalleled dispersal abilities within fluvial systems. We focus on a quantitative evaluation, attempted here for the first time, of the individual roles and the mutual interactions of drivers and controls of the Mississippi-Missouri invasion. To this end, we use a multilayer network model accounting explicitly for zebra mussel demographic dynamics, hydrologic transport, and dispersal due to anthropic activities. By testing our results against observations, we show that hydrologic transport alone is not sufficient to explain the spread of the species at the basin scale. We also quantify the role played by commercial navigation in promoting the initial, selective colonization of the river system, and show how recreational boating may have determined the capillary penetration of the species into the water system. The role of post-establishment dispersal mechanisms and the effectiveness of possible prevention measures are also discussed in the context of model sensitivity and robustness to reparametrization.
机译：[1]我们提出了一种新的生态水文模型，用于研究斑马贻贝Dreissena polymorpha对内陆水域的入侵，并针对北美密西西比-密苏里河系内收集的田间数据进行了测试。这种生物入侵构成了重大的生态和经济威胁，特别是由于当地斑马贻贝殖民地达到了巨大的人口密度，以及该物种在河流系统中无与伦比的分散能力。我们专注于对密西西比-密苏里州入侵的个人角色以及驱动程序和控件的相互作用进行首次定量评估。为此，我们使用多层网络模型来明确说明斑马贻贝的人口动态，水文运输和由于人类活动而造成的扩散。通过对观测结果进行检验，我们发现仅靠水文运输不足以解释该物种在流域尺度上的扩散。我们还量化了商业航行在促进河流系统最初的，有选择性的殖民化过程中所扮演的角色，并展示了休闲划船如何确定物种进入水系统的毛细管渗透。建立后的分散机制的作用以及可能采取的预防措施的有效性也在模型敏感性和对重新参数化的稳健性的背景下进行了讨论。

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  • 来源
    《Water resources research》 |2011年第3期|p.328-343|共16页
  • 作者

    L. Man; E. Bertuzzo; R. Casagrandi; M. Gatto; S. A. Levin; I. Rodriguez-Iturbe; A. Rinaldo;

  • 作者单位

    Laboratory of Ecohydrology, Institute of Environmental Sciences and Technology, Ecole Polytechnique Federate de Lausanne, Lausanne, Switzerland. ,Dipartimento di Elettronica e Informazione, Politecnico di Milan, Milan, Italy;

    Laboratory of Ecohydrology, Institute of Environmental Sciences and Technology, Ecole Polytechnique Federate de Lausanne, Lausanne, Switzerland;

    Dipartimento di Elettronica e Informazione, Politecnico di Milan, Milan, Italy;

    Dipartimento di Elettronica e Informazione, Politecnico di Milan, Milan, Italy;

    Department of Ecology and Evolutionary Biology, Princeton University, Princeton, New Jersey, USA;

    Department of Civil and Environmental Engineering, Princeton University, Princeton, New Jersey, USA;

    Laboratory of Ecohydrology, Institute of Environmental Sciences and Technology, Ecole Polytechnique Federate de Lausanne, Lausanne, Switzerland. ,Dipartimento di Ingegneria Idraulica, Marittima, Ambientale e Geotecnica, Universita di Padova, Padua, Italy;

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