Prioritising Non-Native Crayfish Species for Management in the Rhine-Main Observatory Using the Dispersal-Origin-Status-Impact (DOSI) Scheme

IF 2.2 3区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Phillip J. Haubrock, Ali Serhan Tarkan, Dagmara Błońska, Alexandru Gora, Lucian Pârvulescu, Antonín Kouba, Ismael Soto
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Abstract

Managing non-native species remains a critical challenge in biodiversity conservation, highlighting the need for effective prioritisation frameworks that integrate ecological, economic and policy considerations. Given that biological invasions are a population-level rather than a species-level phenomenon, more nuanced assessment schemes are needed. The Dispersal-Origin-Status-Impact (DOSI) scheme is such an example. Using the Rhine-Main-Observatory (RMO) Long-Term Ecological Research (LTER) site in Germany as a model system, we applied DOSI to rank the occurring non-native crayfish species to guide conservation actions. Our results classify the signal crayfish Pacifastacus leniusculus as the highest priority for management due to its expanding range, autonomous spread and severe ecological and economic impacts. The spiny-cheek crayfish Faxonius limosus follows as a medium-high priority species, while the red swamp crayfish Procambarus clarkii and the calico crayfish Faxonius immunis are ranked lower due to their shrinking or static populations despite their known potential impacts observed at other places. Our study highlights the utility of DOSI as a practical and scalable tool for invasion risk assessment, offering a targeted, data-driven approach to inform decision-making at the population level. By shifting the focus to population-level management, DOSI enhances conservation planning beyond traditional species-based assessments, providing a structured framework for mitigating the risks posed by invasive species in dynamic freshwater ecosystems.

Abstract Image

使用分散-起源-状态-影响(DOSI)方案对莱茵-美因天文台非本土小龙虾物种进行优先管理
管理非本地物种仍然是生物多样性保护的一个关键挑战,突出了需要有效的优先排序框架,将生态、经济和政策因素结合起来。鉴于生物入侵是种群水平而非物种水平的现象,需要更细致的评估方案。分散-起源-状态-冲击(DOSI)方案就是这样一个例子。以德国莱茵-美因天文台(RMO)长期生态研究(LTER)站点为模型系统,应用DOSI对发生的非本土小龙虾物种进行排序,以指导保护行动。我们的研究结果将信号小龙虾太平洋螯虾(Pacifastacus leniusculus)列为最优先管理的物种,因为它的范围扩大,自主传播和严重的生态和经济影响。棘颊螯虾(Faxonius limmosus)作为中高优先级物种紧随其后,而红色沼泽螯虾克氏原螯虾(Procambarus clarkii)和斑点螯虾(Faxonius immunis)的排名较低,因为尽管在其他地方观察到它们已知的潜在影响,但它们的种群数量正在减少或保持不变。我们的研究强调了DOSI作为入侵风险评估的实用和可扩展工具的效用,提供了一种有针对性的、数据驱动的方法来为人口层面的决策提供信息。通过将重点转移到种群水平的管理,DOSI加强了传统的基于物种的评估之外的保护规划,为减轻动态淡水生态系统中入侵物种带来的风险提供了一个结构化的框架。
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来源期刊
Aquatic Conservation-Marine and Freshwater Ecosystems
Aquatic Conservation-Marine and Freshwater Ecosystems 环境科学-海洋与淡水生物学
CiteScore
5.50
自引率
4.20%
发文量
143
审稿时长
18-36 weeks
期刊介绍: Aquatic Conservation: Marine and Freshwater Ecosystems is an international journal dedicated to publishing original papers that relate specifically to freshwater, brackish or marine habitats and encouraging work that spans these ecosystems. This journal provides a forum in which all aspects of the conservation of aquatic biological resources can be presented and discussed, enabling greater cooperation and efficiency in solving problems in aquatic resource conservation.
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