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Preventing and controlling nonnative species invasions to bend the curve of global freshwater biodiversity loss.

Britton, J R., Lynch, A. J., Bardal, H., Bradbeer, S. J., Coetzee, J. A., Coughlan, N. E., Dalu, T., Tricarico, E., Gallardo, B., Lintermans, M., Lucy, F., Liu, C., Olden, J. D., Raghavan, R. and Pritchard, E. G., 2023. Preventing and controlling nonnative species invasions to bend the curve of global freshwater biodiversity loss. Environmental Reviews (Jan), 1-17.

Full text available as:

er-2022-0103-2.pdf - Published Version
Available under License Creative Commons Attribution Non-commercial.


DOI: 10.1139/er-2022-0103


The Emergency Recovery Plan for freshwater biodiversity recognizes that addressing nonnative species is one of six principal actions needed to bend the curve in freshwater biodiversity loss. This is because introduction rates of nonnative species continue to accelerate globally and where these species develop invasive populations, they can have severe impacts on freshwater biodiversity. The most effective management measure to protect freshwater biodiversity is to prevent introductions of nonnative species. Should a nonnative species be introduced, however, then its early detection and the implementation of rapid reaction measures can avoid it establishing and dispersing. If these measures are unsuccessful and the species becomes invasive, then control and containment measures can minimize its further spread and impact. Minimizing further spread and impact includes control methods to reduce invader abundance and containment methods such as screening of invaded sites and strict biosecurity to avoid the invader dispersing to neighbouring basins. These management actions have benefitted from developments in invasion risk assessment that can prioritize species according to their invasion risk and, for species already invasive, ensure that management actions are commensurate with assessed risk. The successful management of freshwater nonnative species still requires the overcoming of some implementation challenges, including nonnative species often being a symptom of degraded habitats rather than the main driver of ecological change, and eradication methods often being nonspecies specific. Given the multiple anthropogenic stressors in freshwaters, nonnative species management must work with other restoration strategies if it is to deliver the Emergency Recovery Plan for freshwater biodiversity.

Item Type:Article
Uncontrolled Keywords:biological invasion; ecological impact; alien species; eradication; invader
Group:Faculty of Science & Technology
ID Code:38433
Deposited By: Symplectic RT2
Deposited On:13 Apr 2023 15:25
Last Modified:13 Apr 2023 15:25


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