Effect factors for marine invasion impacts on biodiversity.

IF 4.9 3区 环境科学与生态学 Q2 ENGINEERING, ENVIRONMENTAL
Philip Gjedde, Fabio Carrer, Johan Berg Pettersen, Francesca Verones
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引用次数: 0

Abstract

Purpose: Marine vertebrate populations have halved in the past decades, and invasive species are a major driver for this loss. While many model the spread of invasive species, a model to assess impacts of marine invasions, after introduction, has hitherto been missing. We present the first regionalized effect factors for marine invasions. These factors gauge differences in biodiversity impacts after invasions, enabling life cycle impact assessments to highlight biodiversity impacts from invasive species.

Methods: Alien species are species that are introduced by humans to ecosystems where they are not native. We combine data from the IUCN red list and the MarINvaders database to identify the potentially disappeared fraction of native species within each marine coastal ecoregion after alien introduction. The effect factors indicate the biodiversity impact from invasions per alien introduction. However, the IUCN red list has a performance bias between taxonomic groups, and both the IUCN and the harmonized citizen science data from MarINvaders have a geographic observer's bias. We address some of this bias by evaluating the number of threatened species per number of assessed species, as well as including machine-learning derived data for data deficient species.

Results and discussion: The resulting regional effect factors demonstrate high effects of invasions at high latitudes, which is in line with other findings. Our approach is founded on continuously growing citizen science data and so reflects the biases and uncertainties that follow with this uneven way of data sampling. On the other hand, the continuous data collection by citizen scientists will improve data coverage and thus improve the model. Vice versa, the model itself may be motivation for citizens scientists to collect more data.

Conclusion: The effect of marine invasions presented herein reflects current global information on the issue viewed in a perspective relevant for life cycle impact assessments. The developed effect factors can be used for further assessments that will aid decision-making for policies, industries, and consumers to work towards minimizing impacts of marine invasions and are developed to be compatible with different relevant fate factors.

Supplementary information: The online version contains supplementary material available at 10.1007/s11367-024-02325-7.

海洋入侵对生物多样性影响的效应因素。
目的:在过去几十年中,海洋脊椎动物的数量减少了一半,而入侵物种是造成这一损失的主要原因。虽然许多人建立了入侵物种扩散的模型,但迄今为止还没有一个模型来评估海洋入侵物种引入后的影响。我们首次提出了海洋入侵的区域化影响因子。这些因子衡量入侵后生物多样性影响的差异,使生命周期影响评估能够突出入侵物种对生物多样性的影响:外来物种是指人类将其引入非本地生态系统的物种。我们结合世界自然保护联盟(IUCN)红色名录和海洋入侵者(MarINvaders)数据库的数据,确定了外来物种引入后每个海洋沿岸生态区内本土物种可能消失的部分。影响因子表明每次外来入侵对生物多样性的影响。然而,世界自然保护联盟的红色名录在分类群之间存在表现偏差,世界自然保护联盟和来自 MarINvaders 的统一公民科学数据都存在地理观察者偏差。我们通过评估受威胁物种的数量与被评估物种的数量之比,以及将机器学习得出的数据纳入数据不足的物种,解决了部分偏差问题:由此得出的区域影响因子表明,高纬度地区的入侵影响较大,这与其他研究结果一致。我们的方法基于持续增长的公民科学数据,因此反映了这种不均衡的数据采样方式所带来的偏差和不确定性。另一方面,公民科学家持续收集数据将提高数据覆盖率,从而改进模型。反之亦然,模型本身也可能成为公民科学家收集更多数据的动力:本文介绍的海洋入侵影响反映了当前全球有关这一问题的信息,其视角与生命周期影响评估相关。开发的影响因子可用于进一步评估,帮助政策、行业和消费者做出决策,努力将海洋入侵的影响降到最低:在线版本包含补充材料,可查阅 10.1007/s11367-024-02325-7。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International Journal of Life Cycle Assessment
International Journal of Life Cycle Assessment 环境科学-工程:环境
CiteScore
10.60
自引率
10.40%
发文量
100
审稿时长
8-16 weeks
期刊介绍: The International Journal of Life Cycle Assessment (Int J Life Cycle Assess) is the first journal devoted entirely to Life Cycle Assessment and closely related methods. LCA has become a recognized instrument to assess the ecological burdens and impacts throughout the consecutive and interlinked stages of a product system, from raw material acquisition or generation from natural resources, through production and use to final disposal. The Int J Life Cycle Assess is a forum for scientists developing LCA and LCM (Life Cycle Management); LCA and LCM practitioners; managers concerned with environmental aspects of products; governmental environmental agencies responsible for product quality; scientific and industrial societies involved in LCA development, and ecological institutions and bodies.
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