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Invasive Species – False Widow Spider

Researchers at NUI Galway have published research which shows that the False Widow spider is taking over Ireland and is an invasive species with a detrimental effect on native species. In Ireland, False Widow spiders live close to buildings and houses inhabited by people. They only survive in cities and not in rural areas.  Dublin, Cork and Wexford have the highest number of False Widows to date....
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Invasive Species Week, 23-29 March 2018

Image courtesy of National Biodiversity Data Centre According to the National Biodiversity Data Centre, the number of invasive species in Ireland has increased by 183 per cent in the past 50 years. Invasive species were estimated to have cost the economies of Ireland and Northern Ireland a combined total of over €261million in 2013 and are a major threat to our native flora and fauna. At ...
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Landowners – Know your Invasive Alien Weed Species

Although they may actually look attractive and provide great cover - BEWARE.  These are invasive species of weeds which are now being controlled by  EU regulations. The European Commission has recently added a further nine plant species to the current list of 14 species covered. The invasive weed species can be divided into two groups: In October 2017, Ireland’s 3rd National Biodi...
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City Council housing halted by highly-invasive Japanese knotweed

City Council housing halted by highly-invasive Japanese knotweed A site earmarked for social housing has been colonised by a ground-devouring weed.  Development of houses on the Council-owned land in Doughiska cannot proceed until an infestation of Japanese Knotweed is treated. A report by Tobin Consulting Engineers found that the 1.03-hectare site, between Doughiska Road and Bóthar ...
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Invasions of alien bird species rising at an alarming rate

The EU is committed to tackling the threat of invasive alien species (those introduced outside their natural past or present distribution, that become problematic species).  As part of this commitment, EU horizon scanning in 2016 identified 95 new or emerging species for which there was high or very high priority for risk assessment. The list was created to enable early preventative actions to be ...
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Alien species and the EU Water Framework Directive: a comparative assessment of European approaches

Although the European Water Framework Directive (WFD) does not refer explicitly to alien species (AS), it is clear that invasive AS (IAS) are considered a pressure on WFD water bodies. This article discusses the results of a questionnaire sent to all EU Member States, demonstrating considerable variability in the way that AS data are used in implementing the WFD. Responses were received from 18 co...
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First Irish Population of non-indigenous Crayfish Species found

The National Park & Wildlife Service (NPWS) has confirmed that a population of a non-indigenous crayfish species (NICS) has been found for the first time in the wild in Ireland. There has always been a concern that a NICS may become established in Ireland and this has now been confirmed by the discovery of a population of an Australian Crayfish, the Yabby, Cherax destructor. The NPWS are...
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Warning issued over ‘severe and increasing’ threat to native crayfish species

A warning has been re-issued to all water users in Ireland by the Department of Culture, Heritage and the Gaeltacht’s National Parks and Wildlife Service (NPWS), along with the Marine Institute about the “severe and increasing” threat to the native crayfish species.  The warning comes after the confirmation this spring of crayfish plague on the River Maigue, upstream of Adare, Co Limerick. Irel...
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Government to scale up efforts to prevent species loss – National Biodiversity Conference

The Government is to scale up efforts to address widespread species loss in Ireland and to protect habitats details of which will be announced by the Minister for Culture, Heritage and the Gaeltacht Josepha Madigan today. Legislation to create a “biodiversity duty” on public and local authorities is one of the key measures that will be outlined at the opening of the first National Biodiversity Con...
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Invasive Japanese Knotweed spreading throughout residential area of Dublin

One of Europe’s most hated weeds has been spreading throughout a residential area of Dublin and is threatening to damage and devalue properties there.  The spread of the most “aggressive, destructive and invasive plant” on Dublin City Council-owned land in Stoneybatter near the Phoenix Park has sparked concern among local homeowners. The council has begun spraying Japanese Knotweed on the O’Devan...
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