Examples of IAS that pose a high risk to native species as a result of , for example , competition and predation , include the striped skunk Mephitis mephitis ( Schreber , 1776 ) , curly waterweed Lagarosiphon major (original) (raw)
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Prioritizing Management of Invasive Alien Species of EU Concern—A Northern Perspective
Diversity
Invasive alien species (IAS) represent one of the major threats to biodiversity globally. Each member state in the EU is required to compile a management plan for IAS of Union concern. This requires risk assessments to prioritize management measures consistent with the requirements of each EU member state. Here, we review the management priorities for the 88 IAS of Union concern based on the risk assessment scheme developed for Finland. Of 88 species, 52 had not been detected in Finland and 51 species were categorized as species that fail to succeed in Finland. Climatic conditions can be regarded as a major factor limiting the success of those species. Five primary management categories were recognized. Monitoring was deemed the primary management option for 30 species, prevention of entry into Finland for 30 species, prevention of escape into nature for 17 species, prevention of further spread and/or the management of areas with high biodiversity value for 4 species and eradication...
Tackling invasive alien species in Europe II: threats and opportunities until 2020
Invasive alien species (IAS) are a significant and growing problem worldwide. In Europe, some aspects of IAS have been addressed through existing legal instruments, but these are far from sufficient to tackle the problem comprehensively. The FINS II Conference considered the relevance of Top 20 IAS issues (Top 10 threats and opportunities) for Europe determined at the 1st Freshwater Invasiveness – Networking for Strategy (FINS I) conference held in Ireland in 2013. Using a similar format of sequential group voting, threats from FINS I (lack of funding, of awareness and education; poor communication) and several new threats (lack of lead agencies, of standardized management and of common approach; insufficient monitoring and management on private property) were identified by 80 academics, applied scientists, policy makers and stakeholders from 14 EU and three non-EU countries (including 10 invited speakers) during four workshop break-out sessions (legislation remit in both EU/non-EU countries; best management and biosecurity practice for control; data management and early warning; pathways of introductions and citizen science). Identified opportunities include improved cooperation and communication, education and leadership to enhance public awareness and stakeholder participation, systems establishment for early detection, rapid response, monitoring and management of IAS using standardised methods of data collection, storage and usage.The sets of threats and opportunities identified underline the importance of international cooperation on IAS issues in communication, education and funding as priorities, as well as in standardization of legislation, control methods and best practise of research.
Scientific Reports
Animals, plants, and other organisms unintentionally or deliberately brought into a natural environment where they are not normally found, and where they cause harmful effects on that environment, are known also as invasive alien species (IAS). They represent a major threat to native biodiversity and ecosystem functioning, and can affect negatively human health and the economy. We assessed the presence and potential pressure by IAS on terrestrial and freshwater ecosystems across 27 European countries, for 66 IAS of policy concern. We computed a spatial indicator that accounts for the number of IAS present in an area and the extent of the ecosystems affected; for each ecosystem, we also looked at the pattern of invasions in the different biogeographical regions. We found disproportionally greater invasion in the Atlantic region, followed by Continental and Mediterranean regions, possibly related to historical patterns of first introductions. Urban and freshwater ecosystems were the m...