For quantitative criteria in alien species assessment

Sandvik, Hanno

doi:10.3389/fenvs.2023.1119094

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…The most prominent feature of quantitative assessment is that it provides a numerically defined threshold value of an empirically measurable quantity for each assessment index [ 23 ], which solves the problem of incommensurability among indices; clear evaluation criteria and bases can also eliminate (or reduce) the bias in evaluation results caused by subjective factors and increase the correctness and accuracy of the evaluation results. Our system divides the risk value of each tertiary index into six levels; that is, the risk is divided from low to high as follows: 0 (negligible risk), 1 (low risk), 2 (slight risk), 3 (medium risk), 4 (high risk), and 5 (extremely high risk), each tertiary index has the same assignment range.…”

Section: Methodsmentioning

confidence: 99%

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Risk Assessment Model System for Aquatic Animal Introduction Based on Analytic Hierarchy Process (AHP)

Zhang

Zhao

et al. 2023

Animals

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The spread of invasive species (IS) has the potential to upset ecosystem balances. In extreme cases, this can hinder economical utilization of both aquatic (fisheries) and terrestrial (agricultural) systems. As a result, many countries regard risk assessment of IS as an important process for solving the problem of biological invasion. Yet, some IS are purposefully introduced for what is seen as their potential economic benefits. Thus, conducting IS risk assessments and then formulating policies based on scientific information will allow protocols to be developed that can reduce problems associated with IS incursions, whether occurring purposefully or not. However, the risk assessment methods currently adopted by most countries use qualitative or semiquantitative methodologies. Currently, there is a mismatch between qualitative and quantitative assessments. Moreover, most assessment systems are for terrestrial animals. What is needed is an assessment system for aquatic animals; however, those currently available are relatively rudimentary. To fill this gap, we used the analytic hierarchy process (AHP) to build a risk assessment model system for aquatic IS. Our AHP has four primary indexes, twelve secondary indexes, and sixty tertiary indexes. We used this AHP to conduct quantitative risk assessments on five aquatic animals that are typically introduced in China, which have distinct biological characteristics, specific introduction purposes, and can represent different types of aquatic animals. The assessment results show that the risk grade for Pterygoplichthys pardalis is high; the risk grade for Macrobrachium rosenbergii, Crassostrea gigas, and Trachemys scripta elegans is medium; and the grade risk for Ambystoma mexicanum is low. Risk assessment of the introduction of aquatic animals using our AHP is effective, and it provides support for the introduction and healthy breeding of aquatic animals. Thus, the AHP model can provide a basis for decision-making risk management concerning the introduction of species.

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Section: Methodsmentioning

confidence: 99%

“…Thus, that assessment method has limitations, is ambiguous, is less accurate, and is less universal than quantitative analysis. In addition, quantitative analysis has the unique advantages of high testability, repeatability, comparability, and transparency [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Risk Assessment Model System for Aquatic Animal Introduction Based on Analytic Hierarchy Process (AHP)

Zhang

Zhao

et al. 2023

Animals

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“…These should be (i) indicative of the nature and magnitude of the impacts, (ii) simple to use, (iii) standardizable among contexts, while (iv) taking into account a degree of uncertainty. The development of quantitative approaches has been advocated frequently (Sandvik, 2023), and we argue that the way forward to significantly improve the indicators for these criteria (Marbuah et al, 2014) is the consideration of standardized data on economic losses, spending and impacts on human health (e.g. medication costs, work stoppage).…”

Section: Ris K and Impac T A Ss E Ss Ments With Mone Tary Cos Tsmentioning

confidence: 99%

Monetary impacts should be considered in biological invasion risk assessments

Soto,

Haubrock,

Cuthbert

et al. 2023

Journal of Applied Ecology

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Biological invasions pose a significant threat to biodiversity, planetary health and socio‐economies worldwide. Prioritizing invasive species for management is crucial, given the limited economic resources available.While global invasive species risk scoring systems exist, they currently do not incorporate fully quantitative impact metrics. However, the emergence of monetary costs as a standardized measure of invasive species impact across contexts provides an opportunity to compare species in risk assessments.Synthesis and applications: The economic impact of invasive species should now be considered in impact and risk assessments worldwide, given the growing availability and synthesis of cost data. This will allow for more informed decision‐making regarding the allocation of resources for invasive species management.

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An Invasion Risk Assessment of Alien Woody Species in Potential National Park Sites in Xinjiang, China, Under Climate Change

Zhang,

Li,

Wan

2024

Ecology and Evolution

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The invasion of alien woody species may have broad ecological, economic, and health impacts on ecosystems and biodiversity under climate change. Previous studies showed that disrupting the biodiversity conservation mechanisms in protected areas can seriously threaten natural ecosystems and the protection of rare and endangered species in such protected areas. However, there is currently no standard for evaluating the invasion risk of woody plants under climate change when establishing national parks in China. Therefore, we used a species distribution model to evaluate the invasion risk of 250 invasive alien woody species in potential national park sites in Xinjiang under climate change. The results indicated that the probability of forest invasion in the potential Altai Kanas National Park was determined to be significantly higher than that of the average level in Xinjiang nature reserves, both under current and future climate conditions. At the same time, the probability of invasive woody species invading coniferous forests, broad‐leaved forests, and grassland ecosystems is higher in the Altai Kanas and Tianshan potential national parks. We found that Acer negundo, Robinia pseudoacacia, and Amorpha fruticose in potential parks in Xinjiang have higher invasion potential and thus require heightened vigilance to stop their spread. This study contributes to the monitoring and management of national parks and provides an actionable foundation for protecting ecosystem functions and minimizing the potential risk of invasive alien species under climate change.

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For quantitative criteria in alien species assessment

Cited by 4 publications

References 25 publications

Risk Assessment Model System for Aquatic Animal Introduction Based on Analytic Hierarchy Process (AHP)

Risk Assessment Model System for Aquatic Animal Introduction Based on Analytic Hierarchy Process (AHP)

Monetary impacts should be considered in biological invasion risk assessments

An Invasion Risk Assessment of Alien Woody Species in Potential National Park Sites in Xinjiang, China, Under Climate Change

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