Invasive nonnative species acting as “ecosystem engineers” or “geomorphic agents” can represent a major landscape disturbance. Quantification of their biogeomorphic impacts remains a key knowledge gap, and aquatic‐terrestrial transition zones may be particularly exposed to impacts. We demonstrate how burrowing invasive species represent a potentially significant but unquantified erosion risk at aquatic margins. We reveal a lack of quantitative research on geophysical impacts, despite increasing concerns over threats to waterways and flood defense infrastructure. We explore example animals of global interest, comprising crustaceans, fish, reptiles, and mammals and reveal the global nature of the issue: over 100 countries, states, or territories where at least one example species is established, and over 20 with 3‐6 species present. We present a conceptual model for the impacts of burrows on stability and erosion at aquatic margins using established models of geotechnical, hydrological, and hydraulic drivers. Burrows are hypothesized to (i) alter failure plane position, decrease failure plane length, and increase failure plane angle (thereby decreasing bank shear strength); (ii) modify the spatial distribution of porewater pressure, thereby increasing subsurface flow (seepage), reducing cohesion, and increasing the likelihood of slip failures at the bank face; (iii) increase turbulence and sediment entrainment at burrow entrances; and (iv) alter flow resistance at the bank face. Most effects are expected to increase bank instability/erosion with the exception of (iv) which has the potential to offer protection from fluvial action. We call for further research in these areas to quantify impacts for different environments and different invasive species.

中文翻译：

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入侵物种入侵：水生陆地界面的未量化侵蚀风险

充当“生态系统工程师”或“地貌代理”的外来入侵物种可能代表主要的景观扰动。对其生物地貌影响的量化仍然是一个关键的知识鸿沟，水陆过渡区可能特别容易受到影响。我们证明穴居入侵物种在水生边界处如何代表潜在的重大但未量化的侵蚀风险。尽管人们越来越担心对水路和防洪基础设施的威胁，但我们发现缺乏对地球物理影响的定量研究。我们探索了全球关注的示例动物，其中包括甲壳动物，鱼类，爬行动物和哺乳动物，并揭示了该问题的全球性：在100多个国家，州或地区建立了至少一个示例物种，在20多个国家，州或地区建立了3-6种物种存在的物种。我们使用岩土，水文和水力驱动器的既定模型，介绍了洞穴对水生边界处的稳定性和侵蚀的影响的概念模型。假设挖洞可以（i）改变破坏面的位置，减少破坏面的长度，并增加破坏面的角度（从而降低堤岸的抗剪强度）；（ii）改变孔隙水压力的空间分布，从而增加地下流量（渗流），减小内聚力，并增加在河岸面滑倒的可能性；（iii）增加洞穴入口处的湍流和夹带泥沙；（iv）改变堤岸面的流阻。除（iv）有可能提供保护以免受到河流行动的影响外，大多数影响预计会增加银行的不稳定性/侵蚀。