2021
DOI: 10.1111/1365-2664.13857
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Alien fish eradication from high mountain lakes by multiple removal methods: Estimating residual abundance and eradication probability in open populations

Abstract: Invasive alien species are among the most important threats to biodiversity. Plans for their eradication have been implemented worldwide but estimating residual population size and eradication probability to assess removal success is complicated by the imperfect detection of residual individuals. Most methods to assess residual abundance and eradication probability rely on the often unrealistic assumption that a population is closed to mortality and recruitment processes during the implementation of removal ac… Show more

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Cited by 8 publications
(3 citation statements)
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“…Overall, the results suggest that introduced fish have a severe impact on mountain lakes in the study region, justifying a halt to further stocking and the eradication of introduced fish, e.g., using gill nets [126]. The success of such measures has been seen in the Italian Alps and northern America [126,127], where the natural trophic structure reappeared only a few years after lakes became fishless, followed by a recolonization with the original species [128]. Finally, the eradication of fish in naturally fishless lakes will also help to restore associated assemblages outside the aquatic trophic pyramid, such as herpetofauna, which has been impaired or even eradicated in stocked lakes [129][130][131], and is one of the most threatened groups of animals [132,133].…”
Section: Uniqueness As An Indicator Of Fish Stockingmentioning
confidence: 91%
“…Overall, the results suggest that introduced fish have a severe impact on mountain lakes in the study region, justifying a halt to further stocking and the eradication of introduced fish, e.g., using gill nets [126]. The success of such measures has been seen in the Italian Alps and northern America [126,127], where the natural trophic structure reappeared only a few years after lakes became fishless, followed by a recolonization with the original species [128]. Finally, the eradication of fish in naturally fishless lakes will also help to restore associated assemblages outside the aquatic trophic pyramid, such as herpetofauna, which has been impaired or even eradicated in stocked lakes [129][130][131], and is one of the most threatened groups of animals [132,133].…”
Section: Uniqueness As An Indicator Of Fish Stockingmentioning
confidence: 91%
“…Overcoming these obstacles may require unconventional control strategies as part of a more integrated solution to management of invasive, yet socially‐valued species (Dunham et al., 2020). Relatively small‐scale eradications have been apparently successful (Koenig et al., 2015; Simberloff, 2021; Tiberti et al., 2021), and eradication of some invasive fish (e.g., sea lamprey, Petromyzontidae marinus ) is theoretically possible at scales as large as the US Great Lakes when applying conventional control methods concomitant with new techniques like gene drive (Adams et al., 2021; Jones & Adams, 2021). In practice, however, eradication is difficult to achieve, and most control programs have been variably successful (Rytwinski et al., 2019; Simberloff, 2021).…”
Section: Introductionmentioning
confidence: 99%
“…Achievement of these desired effects through invasive species management is usually not straightforward; management decisions involving invasive species are often wracked by uncertainty and necessitate appraisal of collateral damage and opportunity cost trade‐offs (Dobiesz et al, 2018; Fenichel & Hansen, 2010). Mathematical models of population dynamics and control offer a value‐added tool for invasive species management by providing probabilistic measures of predicted suppression or eradication success that can be weighed against trade‐offs associated with a particular management action (Tiberti et al, 2021; van Poorten et al, 2019). Time‐series analytic techniques provide the foundation for building population management forecasting models from long‐term monitoring datasets (Shea & the NCEAS Working Group on Population Management, 1998).…”
Section: Introductionmentioning
confidence: 99%