Tracking a killer shrimp: Dikerogammarus villosus invasion dynamics across Europe

Diversity and Distributions, Journal Year: 2022, Volume and Issue: 29(1), P. 157 - 172

Published: Nov. 6, 2022

Abstract Aim Invasive alien species are a growing problem worldwide due to their ecological, economic and human health impacts. The “killer shrimp” Dikerogammarus villosus is notorious invasive amphipod from the Ponto‐Caspian region that has invaded many fresh brackish waters across Europe. Understandings of large‐scale population dynamics highly impactful invaders such as D. lacking, inhibiting predictions impact efficient timing management strategies. Hence, our aim was assess trends well its impacts in freshwater rivers streams. Location Methods We analysed 96 European time series between 1994 2019 identified relative abundance (i.e. dominance %) series, set site‐specific characteristics identify drivers determinants changes invasion using meta‐regression modelling. also looked at spread over space estimate speed (km/year) investigated on recipient community metrics abundance, taxa richness, temporal turnover, Shannon diversity Pielou evenness) generalized linear models. Results Population varied series. Nevertheless, increased all frequency occurrences (used proxy for invader spread) described by Pareto distribution, whereby we estimated lag phase introduction spatial expansion) approximately 28 years, followed gradual increase before new declined rapidly long term. change associated with decreased turnover diversity. Main Conclusion Our results show well‐established significantly alters ecological communities. However, multidecadal prior observed expansion suggests initial introductions cryptic, thus signalling need more effective early detection methods.

Language: Английский

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The economic costs of invasive aquatic plants: A global perspective on ecology and management gaps

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 908, P. 168217 - 168217

Published: Nov. 10, 2023

Language: Английский

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Identifying invasive species threats, pathways, and impacts to improve biosecurity

Ecosphere, Journal Year: 2023, Volume and Issue: 14(12)

Published: Dec. 1, 2023

Abstract Managing invasive species with prevention and early‐detection strategies can avert severe ecological economic impacts. Horizon scanning, an evidence‐based process combining risk screening consensus building to identify threats, has become a valuable tool for prioritizing management prevention. We assembled working group of experts from academic, government, nonprofit agencies organizations, conducted multi‐taxa horizon scan Florida, USA, the first its kind in North America. Our primary objectives were high‐risk their introduction pathways, detail magnitude mechanism potential impacts, and, more broadly, demonstrate utility scanning. As means facilitate future scans, we document used generate list taxa screening. evaluated 460 arrive, establish, cause negative socioeconomic identified 40 invaders, including alewife, zebra mussel, crab‐eating macaque, red swamp crayfish. Vertebrates aquatic invertebrates posed greatest invasion threat, over half omnivores, there was high confidence scoring taxa. Common arrival pathways ballast water, biofouling vessels, escape pet/aquarium/horticulture trade. Competition, predation, damage agriculture/forestry/aquaculture common impact mechanisms. recommend full analysis taxa; increased surveillance at Florida's ports, state borders, pathways; periodic review revision list. Few scans comprehensive methodology (including list‐building), certainty estimates all categories final score, detailed impact. Providing this information further inform efforts be efficiently replicated other regions. Moreover, harmonizing data sharing enhance interpretation results stakeholders general public.

Language: Английский

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A horizon scan exercise for aquatic invasive alien species in Iberian inland waters

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 869, P. 161798 - 161798

Published: Jan. 23, 2023

As the number of introduced species keeps increasing unabatedly, identifying and prioritising current potential Invasive Alien Species (IAS) has become essential to manage them. Horizon Scanning (HS), defined as an exploration threats, is considered a fundamental component IAS management. By combining scientific knowledge on taxa with expert opinion, we identified most relevant aquatic in Iberian Peninsula, i.e., those greatest geographic extent (or probability introduction), severe ecological, economic human health impacts, difficulty acceptability We highlighted 126 already present inland waters (i.e., Concern list) 89 high being near future Alert list), which 24 10 IAS, respectively, were management priority after receiving highest scores assessment top-ranked IAS). In both lists, belonging four thematic groups (plants, freshwater invertebrates, estuarine vertebrates) having been through various pathways from different regions world classified according their main functional feeding groups. Also, latest update list Union concern pursuant Regulation (EU) No 1143/2014 includes only 12 for while national lists incorporate vast majority This fact underlines great importance prioritisation exercises at biogeographical scales step prior risk analyses inclusion lists. HS provides robust cost-effective strategy decision-makers stakeholders prioritise use limited resources prevention Although applied transnational level European biodiversity hotspot, this approach designed application any geographical or administrative scale, including continental one.

Language: Английский

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LIFE PREDATOR: Prevent, detect, combat the spread of Silurus glanis in south European lakes to protect biodiversity

NeoBiota, Journal Year: 2024, Volume and Issue: 93, P. 225 - 244

Published: June 13, 2024

The management of Invasive Alien Species (IAS) is often hindered by ecological, social and economic factors, resulting in inadequate biodiversity protection inefficient use public money. A clear example such aquatic ecosystems the European catfish Silurus glanis L. southern Europe. Native to central Eurasia, S. an emblematic controversial freshwater fish, being subject extensive profitable trophy angling Europe commercial fishing eastern Concurrently, western where it was introduced XIX century, considered a problematic invader. lack comprehensive information on invasive populations has limited effective management, which critical successfully control spread minimize negative impacts native species. LIFE PREDATOR, started September 2022 with budget € 2.85 million consortium six partners from three countries, aims at developing multidisciplinary transnational approach established , prevent further spreading future introductions lakes reservoirs. project will develop test early warning system based eDNA citizen science identify most selective capture techniques reduce abundance catfish, particularly Natura 2000 lakes, actively involving anglers professional fishermen this. Massive raising awareness campaigns be conducted targeting but also general public, protocols best practices transferred authorities. For long-term sustainability project, South Management Group created. Additionally, northern Italy, invasion more advanced, local circular economy implemented, increase pressure encouraging consumption as food.

Language: Английский

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