Belgium
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The Belgian Forum on Invasive Species has adopted
a list system to
identify exotic species that make a threat for native biodiversity.
Alert list (A0-B0) includes species that are not yet established in
Belgium which cause a moderate to a high impact on the environment in
the neighbouring countries.
Black list (A1-A3) includes species with a confirmed
high impact on the environment;
Grey or watch list (B1-B3) gathers species with a
suspected or moderate impact on the environment. |
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Denmark
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| Black list includes species that must
be considered as significant invasive species in Denmark. These are both
species, which are now widespread in Denmark, and species that occur
only very rarely. Similarly, the black list includes both species where
eradication is impossible, and species that can be combated with a
limited effort.
Grey list includes species that do not yet appear
invasive in Denmark, but have the potential to become invasive. This
could be introduced species in countries close to Denmark, which has
showed a large reproducing and / or spreading potential and which also
has been shown to have significant negative consequences for
biodiversity. Grey list also includes species that already exist in
Denmark and that exhibit invasive characteristics and which therefore
must be monitored.
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Estonia
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Black list includes:
- Alien plant species that have been introduced and are
established in nature, eradication impossible
- Extremely dangerous plants, strong generative and
vegetative reproduction
- Plants with high potentiality to naturalize
- Dangerous invasive plants with limited dispersal
(usually use only vegetative propagation)
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Germany and Austria
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| Black List is separated into three
sub-lists: (1) Black List–warning list if the alien species is not yet
present in the reference area, (2) Black List–action list if the alien
species occurs only in a few localities and eradication measures are
available, and (3) Black List–management list if the alien species
occurs in a large area and eradication measures are hardly feasible.
The Grey List is further divided into two sub-lists
(”operation”, ”observation”), based on the level of certainty of the
assessment.
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Ireland
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Invasive species are species that
have been introduced, generally by human intervention, outside their
natural range and whose establishment and spread can threaten native
ecosystem structure, function and delivery of services.
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Latvia
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An invasive species is a species
which is not native to the particular area,
cause damage to native species
and/or to native habitats or cause economic or environmental damage and/or
cause damage to human health.(adopted from the Latvian Plant Protection Law).
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Netherlands
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| Legally forbidden species for trade
and/or possession: Species that are
mentioned in a code of conduct for aquatic alien plants. The partners
declare that some species will no longer be traded, or will only be
traded with additional information on the save use of these plants.
Species for which our minister announced a legal
ban on trade and/or possession (not yet effective):
Species for which we try to agree on a code of
conduct with the bird feed industry (not yet effective):
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Norway
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High, medium and low risk species.
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