Global economic costs of aquatic invasive alien species

Cuthbert, Ross N.; Pattison, Zarah; Taylor, Nigel G.; Verbrugge, Laura; Diagne, Christophe; Ahmed, Danish A.; Leroy, Boris; Angulo, Elena; Briski, Elizabeta; Capinha, César; Catford, Jane A.; Dalu, Tatenda; Essl, Franz; Gozlan, Rodolphe E.; Haubrock, Phillip J.; Kourantidou, Melina; Kramer, Andrew M.; Renault, David; Wasserman, Ryan; Courchamp, Franck

doi:10.1016/j.scitotenv.2021.145238

Cited by 241 publications

(168 citation statements)

References 64 publications

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“…Indeed, aquatic species only contributed to 8.5% of cost records and 3.4% of total amount of economic losses in Asia, indicating the considerable knowledge gap concerning both freshwater and marine invaders. A similar trend has been found at the global scale, where aquatic invasions have cost US$ 345 billion in recent decades, but are an order of magnitude lower than terrestrial invasion costs (Cuthbert et al 2021). One possible reason for this knowledge gap is that current assessment of invasion costs largely ignores the decreased economic value associated with changing biodiversity (e.g.…”

Section: Discussionsupporting

confidence: 72%

Economic costs of biological invasions in Asia

Liu¹,

Diagne²,

Angulo³

et al. 2021

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Invasive species have caused severe impacts on biodiversity and human society. Although the estimation of environmental impacts caused by invasive species has increased in recent years, economic losses associated with biological invasions are only sporadically estimated in space and time. In this study, we synthesized the losses incurred by invasions in Asia, based on the most comprehensive database of economic costs of invasive species worldwide, including 560 cost records for 88 invasive species in 22 countries. We also assessed the differences in economic costs across taxonomic groups, geographical regions and impacted sectors, and further identified the major gaps of current knowledge in Asia. Reported economic costs of biological invasions were estimated between 1965 and 2017, and reached a total of US$ 432.6 billion (2017 value), with dramatic increases in 2000–2002 and in 2004. The highest costs were recorded for terrestrial ectotherms, for species estimated in South Asia, and for species estimated at the country level, and were related to more than one impacted sector. Two taxonomic groups with the highest reported costs were insects and mammals, and two countries with the highest costs were India and China. Non-English data covered all of 12 taxonomic groups, whereas English data only covered six groups, highlighting the importance of considering data from non-English sources to have a more comprehensive estimation of economic costs associated with biological invasions. However, we found that the estimation of economic costs was lacking for most Asian countries and for more than 96% of introduced species in Asia. Further, the estimation is heavily biased towards insects and mammals and is very limited concerning expenditures on invasion management. To optimize the allocation of limited resources, there is an important need to better and more widely study the economic costs of invasive alien species. In this way, improved cost reporting and more collaborations between scientists and stakeholders are needed across Asia.

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Section: Discussionsupporting

confidence: 72%

Economic costs of biological invasions in Asia

Liu¹,

Diagne²,

Angulo³

et al. 2021

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“…Some of these introduced organisms become established and invasive in new environments, continuing to spread and negatively affecting their introduced environment [ 8 , 9 ]. The economic costs related to such biological invasions are overwhelming and remain underestimated in many cases [ 10 , 11 ]. More importantly, these invasions often result in irreversible changes of newly occupied ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Survival, Growth, and Reproduction: Comparison of Marbled Crayfish with Four Prominent Crayfish Invaders

Kouba

Lipták

Kubec

et al. 2021

Biology

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Biological invasions are increasingly recognized ecological and economic threats to biodiversity and are projected to increase in the future. Introduced freshwater crayfish in particular are protruding invaders, exerting tremendous impacts on native biodiversity and ecosystem functioning, as exemplified by the North American spiny-cheek, signal and red swamp crayfish as well as the Australian common yabby. The marbled crayfish is among the most outstanding freshwater crayfish invaders due to its parthenogenetic reproduction combined with early maturation and high fecundity. As their introduced ranges expand, their sympatric populations become more frequent. The question of which species and under what circumstances will dominate in their introduced communities is of great interest to biodiversity conservation as it can offer valuable insights for understanding and prioritization of management efforts. In order to examine which of the aforementioned species may be more successful as an invader, we conducted a set of independent trials evaluating survival, growth, claw injury, and reproduction using single-species stocks (intraspecific interactions) and mixed stocks (interspecific interactions) of marbled crayfish vs. other crayfish invaders since the onset of exogenous feeding. In both single and mixed stocks, red swamp crayfish and yabby grew faster than marbled crayfish, while marbled crayfish were superior to both spiny-cheek and signal crayfish in terms of growth. With the exception of signal crayfish, the faster-growing species consistently reached a higher survival rate. The faster-growing species tended to negatively impair smaller counterparts by greater claw injury, delayed maturation, and reduced fecundity. Only marbled crayfish laid eggs as early as 14 weeks in this study, which is earlier than previously reported in the literature. Thus, the success of marbled crayfish among invasive crayfish is significantly driven by relatively fast growth as well as an early and frequent reproduction. These results shed light on how interactions between invasive populations can unfold when their expansion ranges overlap in the wild, thereby contributing to the knowledge base on the complex population dynamics between existing and emerging invasive species.

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“…The global spread of invasive alien species (IAS) has had wide-ranging consequences, such as negatively impacting ecosystem services, human health, economies and food security, while also contributing to the current sixth mass extinction (Ceballos et al 2015;Turvey and Crees 2019;Cuthbert et al 2021). With increasingly globalised transport networks creating novel pathways for IAS spread (Hulme 2009;Zieritz et al 2016;Seebens et al 2019), the numbers arriving in new locations will likely increase in the future (Seebens et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Breathing space: deoxygenation of aquatic environments can drive differential ecological impacts across biological invasion stages

et al. 2021

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The influence of climate change on the ecological impacts of invasive alien species (IAS) remains understudied, with deoxygenation of aquatic environments often-overlooked as a consequence of climate change. Here, we therefore assessed how oxygen saturation affects the ecological impact of a predatory invasive fish, the Ponto-Caspian round goby (Neogobius melanostomus), relative to a co-occurring endangered European native analogue, the bullhead (Cottus gobio) experiencing decline in the presence of the IAS. In individual trials and mesocosms, we assessed the effect of high, medium and low (90%, 60% and 30%) oxygen saturation on: (1) functional responses (FRs) of the IAS and native, i.e. per capita feeding rates; (2) the impact on prey populations exerted; and (3) how combined impacts of both fishes change over invasion stages (Pre-invasion, Arrival, Replacement, Proliferation). Both species showed Type II potentially destabilising FRs, but at low oxygen saturation, the invader had a significantly higher feeding rate than the native. Relative Impact Potential, combining fish per capita effects and population abundances, revealed that low oxygen saturation exacerbates the high relative impact of the invader. The Relative Total Impact Potential (RTIP), modelling both consumer species’ impacts on prey populations in a system, was consistently higher at low oxygen saturation and especially high during invader Proliferation. In the mesocosm experiment, low oxygen lowered RTIP where both species were present, but again the IAS retained high relative impact during Replacement and Proliferation stages at low oxygen. We also found evidence of multiple predator effects, principally antagonism. We highlight the threat posed to native communities by IAS alongside climate-related stressors, but note that solutions may be available to remedy hypoxia and potentially mitigate impacts across invasion stages.

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Global economic costs of aquatic invasive alien species

Cited by 241 publications

References 64 publications

Economic costs of biological invasions in Asia

Economic costs of biological invasions in Asia

Survival, Growth, and Reproduction: Comparison of Marbled Crayfish with Four Prominent Crayfish Invaders

Breathing space: deoxygenation of aquatic environments can drive differential ecological impacts across biological invasion stages

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