The Target 10 Homepage co-ordinates actions and organisations in understanding and controlling problem species.

Ireland's National Plant
Conservation Strategy

is a response to the
Global Strategy for
Plant Conservation

This webpage acts as the focal point and clearing-house for progress in implementing this Strategy

National Botanic Gardens Home Page

vert bar Stage 2 Risk Assessment Questions


Invasion History
Q - 1 Is the species in its present range (including areas where it has spread or been successfully introduced beyond its natural range) known to be invasive, i.e. to threaten species, habitats or ecosystems? (0-no; 1-uncertain; 2-yes)
Q - 2 Is the species currently expanding its range in Ireland? (0-no; 1-uncertain; 2-yes)
Q - 3 Can or has the species become widely established in Ireland? (0-no; 1-uncertain; 2-yes)
Q - 4 Does the species appear on any recognised national/international lists of highly invasive species? (0-no; 2-yes)
Vectors / Pathways
Q - 5 How many pathways of introduction/re-introduction been identified? (1-few, 2-moderate number; 3-many)
Q - 6 How many vectors of introduction/re-introduction been identified?(1-few, 2-moderate number; 3-many)
Q - 7 How likely is the organism to gain access to the vector of introduction/re-introduction undetected by inspection and testing? (0- n/a; 1-not likely; 2-moderately likely; 3-very likely)
Habitat Suitability
Q - 8 Has a receiving habitat/species been identified? (0-none; 1-one; 2-more than one)
Q - 9 What is the potential for widespread establishment in Ireland? (0-Localised; 1-moderate spread; 2-Island wide)
Q - 10 How similar are abiotic factors in Ireland to the area of current distribution? (0-not similar; 1-moderately similar; 2-very similar)
Q - 11 Is there potential for this species to naturally expand its range with respect to climate change? (0-no; 1-uncertain; 2-yes)
Propagule Pressure
Q - 12 Does the vector for intranational spread transport reproductively viable individuals (0-no or n/a; 1-uncertain; 2-yes)
Q - 13 What is the volume and frequency of vectors of introduction/re-introduction along the pathway?(1-low/unknown; 2-medium; 3-high)
Q - 14 Is the species a commodity or is trade associated with a particular commodity the main vector or pathway? (0-no; 1 uncertain, 2-yes)
Q - 15 How widely will the vectors transport the species throughout Ireland?(0-n/a;1-low; 2-medium; 3-high)
Q - 16 How likely will the activities of society (e.g. processing, consumption, planting, disposal of waste) to aid the transfer of potentially viable individuals or populations to additional suitable habitat/s? (0-Not likely or n/a; 1-moderately likely, 3-very
Establishment Success
Q - 17 How many other species are required for survival and establishment? (0-many; 1-few, 2-very few; 3-general requirements or n/a)
Q - 18 Are these widely available in Ireland? (0-No; 1-Uncertain; 2-Yes or n/a)
Q - 19 Does the species possess adaptations that are likely to facilitate its survival (such as tolerance to a wide range of environmental variables)? (0-no, 1-Uncertain; 2-yes)
Spread Potential
Q - 20 How rapidly can the species spread by natural means? (1-slowly/uncertain, 2-intermediate; 3 -rapidly)
Q - 21 How rapidly can the species spread by human mediated means? ( 1-slowly/uncertain, 2-intermediate; 3 -rapidly)
Q - 22 How difficult is it to contain the species? (0-easily; 1-some difficultly/uncertain; 2-difficult)
Eco Impacts
Q - 23 Is the species poisonous, or poses other risks to human health? (0-no; 1-uncertain; 2-yes)
Q - 24 How significant are impacts in terms of habitat change or loss? (0-no impact; 1-low adverse/uncertain; 2-moderate adverse; 3-high adverse impact)
Q - 25 How significant are impacts in terms of change or loss of native species? (0-no impact; 1-low adverse/uncertain; 2-moderate adverse; 3-high adverse impact)
Q - 26 Is the species a host and/or vector for recognised pests and pathogens, especially non-native? (0-no; 1-uncertain; 2-yes)
Q - 27 Is this species known to facilitate the establishment of other possibly invasive species? (0-no; 1-uncertain; 2-yes)
EU Legislation
Q - 28 What (if any) is the estimated level of impact on ecosystems in relation to the requirements of the Water Framework Directive (0-low; 1-intermediate or uncertain; 2-high)
Q - 29 Is the species likely to have an unwanted effect on the biodiversity and stability of Natura 2000 sites? (0-low; 1-intermediate or uncertain; 2-high)
Q - 30 Is the species likely to have an unwanted effect on the biodiversity and stability of a ASSI? (0-low; 1-intermediate or uncertain; 2-high)
Q - 31 Does the species prey upon or compete directly or indirectly with native species of conservation concern? (0-low; 1-intermediate or uncertain; 2-high)
Q - 32 Is the invasive species likely to have a detrimental effect on a European Protected Species (EPS)? (0 -no, 1- 1 EPS or uncertain, 2 - more than 1 EPS)?
Q - 33 Will the species adversely affect the population or survival rate of a species listed in the IUCN Red List of Threatened Species 2006? (0-low; 1-intermediate or uncertain; 2-high)
Q - 34 How significant are the economic impacts in the species current geographical range? (0-positive/none; 1-moderate adverse/uncertain; 2-high adverse impact)
Q - 35 How significant, in monetary terms, are the economic costs resulting from the introduction in Ireland? (0-positive/none; 1-low to moderate/uncertain; 2-major)
Q - 36 Are there effective control method(s)? (0-yes; 1-uncertain, 2-no)
Q - 37 Has the species been contained successfully elsewhere? (0-yes; 1-uncertain, 2-no)
Q - 38 Are the control methods resource-intensive? (0-low; 1-moderate; 2-major or n/a)
Q - 39 Do the control methods have impacts on other species or economic impacts? (0-low; 1-moderate; 2-major or n/a)

n.b. For Potential species a slightly different question set was used.

Stage 2 assessments . . .