Biological invasions are known drivers of biodiversity decline, yet the ecological impacts of invaders remain largely unmeasured in many contexts. Consequently, other measures of a species invasion (eg local abundance) are often used as surrogates (or “proxies”) to infer impact on recipient ecosystems. However, the use of surrogates for impact in invasion science and management is often implicit, and frequently lacks the evaluation and validation that characterize surrogate use in other fields. Although there are practical reasons for this, the risks associated with not testing the accuracy, stability, and certainty of surrogates for invasive species impact must be acknowledged. Recognizing the role of surrogacy in invasion science offers previously unappreciated solutions for increasing the quantitative rigor of invasive species impact assessments that inform management decisions.

中文翻译：

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入侵研究和管理中的代孕：从“入侵”推断“影响”

众所周知，生物入侵是生物多样性下降的驱动力，但在许多情况下，入侵者的生态影响仍未得到很好的衡量。因此，其他入侵物种的措施（例如本地丰度）通常被用作替代（或“代理”），以推断对受者生态系统的影响。但是，使用替代物来影响入侵科学和管理通常是隐含的，并且经常缺乏对替代物在其他领域的使用进行表征的评估和验证。尽管这样做有实际原因，但必须承认与未测试入侵物种影响的替代物的准确性，稳定性和确定性有关的风险。