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Framing the concept of invasive species “impact” within a management context
Invasive Plant Science and Management ( IF 1.1 ) Pub Date : 2020-05-04 , DOI: 10.1017/inp.2020.8 Jacob N. Barney , Daniel R. Tekiela
Invasive Plant Science and Management ( IF 1.1 ) Pub Date : 2020-05-04 , DOI: 10.1017/inp.2020.8 Jacob N. Barney , Daniel R. Tekiela
Governments and conservation organizations worldwide are motivated to manage invasive species due to quantified and perceived negative ecological and economic impacts invasive species impose. Thus, determining which species cause significant negative impacts, as well as clear articulation of those impacts, is critical to meet conservation priorities. This process of determining which species warrant management can be straightforward when there are clear negative impacts, such as dramatic reductions in native diversity. However, the majority of changes to ecosystem pools and fluxes cannot be readily categorized as ecologically negative or positive (e.g., lower soil pH). Additionally, diverse stakeholders may not all agree on impacts as negative. This complexity challenges our ability to simply and uniformly determine which species cause negative impact, and thus which species merit management, especially as we expand invader impacts to encompass a more holistic ecosystem perspective beyond biodiversity and consider stakeholder perspectives and priorities. Thus, we suggest impact be evaluated in a context that is dictated by governing policies or conservation/land management missions with the support of scientists. In other words, within each jurisdiction, populations are identified as causing negative impact based on the hierarchical governing policies and mission of that parcel. Framing negative impact in a management context has the advantages of (1) easily scaling from individual landscapes to geopolitical states; (2) better representing how managers practice, (3) reflecting invasive species as spatially contextual, not universal, and (4) allowing for flexibility with dynamic ecosystems undergoing global change. We hope that framing negative impact in an applied context aids management prioritization and achieving conservation goals.
中文翻译:
在管理环境中构建入侵物种“影响”的概念
由于入侵物种造成的量化和感知的负面生态和经济影响,世界各地的政府和保护组织都有动力管理入侵物种。因此,确定哪些物种会造成重大的负面影响,以及明确说明这些影响,对于满足保护优先事项至关重要。当存在明显的负面影响(例如本地多样性急剧减少)时,确定哪些物种值得管理的过程可以很简单。然而,生态系统池和通量的大部分变化不能轻易归类为生态负面或正面(例如,较低的土壤 pH 值)。此外,不同的利益相关者可能并不都认为影响是负面的。这种复杂性挑战了我们简单统一地确定哪些物种造成负面影响以及哪些物种值得管理的能力,尤其是当我们扩大入侵者影响以涵盖生物多样性之外的更全面的生态系统观点并考虑利益相关者的观点和优先事项时。因此,我们建议在科学家支持下,在治理政策或保护/土地管理任务所规定的背景下评估影响。换句话说,在每个管辖范围内,根据该地块的分级管理政策和使命,人口被确定为造成负面影响。在管理环境中构建负面影响具有以下优点:(1)轻松地从单个景观扩展到地缘政治国家;(2) 更好地代表管理者的实践方式,(3) 将入侵物种反映为空间背景,而不是普遍的,以及 (4) 允许灵活应对正在经历全球变化的动态生态系统。我们希望在应用环境中构建负面影响有助于管理优先级和实现保护目标。
更新日期:2020-05-04
中文翻译:
在管理环境中构建入侵物种“影响”的概念
由于入侵物种造成的量化和感知的负面生态和经济影响,世界各地的政府和保护组织都有动力管理入侵物种。因此,确定哪些物种会造成重大的负面影响,以及明确说明这些影响,对于满足保护优先事项至关重要。当存在明显的负面影响(例如本地多样性急剧减少)时,确定哪些物种值得管理的过程可以很简单。然而,生态系统池和通量的大部分变化不能轻易归类为生态负面或正面(例如,较低的土壤 pH 值)。此外,不同的利益相关者可能并不都认为影响是负面的。这种复杂性挑战了我们简单统一地确定哪些物种造成负面影响以及哪些物种值得管理的能力,尤其是当我们扩大入侵者影响以涵盖生物多样性之外的更全面的生态系统观点并考虑利益相关者的观点和优先事项时。因此,我们建议在科学家支持下,在治理政策或保护/土地管理任务所规定的背景下评估影响。换句话说,在每个管辖范围内,根据该地块的分级管理政策和使命,人口被确定为造成负面影响。在管理环境中构建负面影响具有以下优点:(1)轻松地从单个景观扩展到地缘政治国家;(2) 更好地代表管理者的实践方式,(3) 将入侵物种反映为空间背景,而不是普遍的,以及 (4) 允许灵活应对正在经历全球变化的动态生态系统。我们希望在应用环境中构建负面影响有助于管理优先级和实现保护目标。