Spread of invasive species into Scotland: study

A horizon scanning study involving analysis of pathways of spread of invasive non-native species into Scotland. It considers species having the highest likelihood of arrival and establishment and the magnitude of their potential negative impact on biodiversity and ecosystems over the next 10 years.


1. Link to Scottish Biodiversity Strategy

2. Horizon scanning results - GB non-native species secretariat (nonnativespecies.org)

3. Met Office, 2021. Climate averages. Accessed on 24 November 2021 at http://www.metoffice.gov.uk/climate/uk/averages/index.html

4. ONS (2021) Mid 2020 population estimates - local authority boundaries. Office for National Statistics.

5. Fishing for salmon (which includes Atlantic salmon (Salmo salar) and sea trout (Salmo trutta) is a separate heritable right from land ownership and access is controlled by those who own those rights to fish. The right to fish for species other than ‘salmon’ (such as brown trout (Salmo trutta ) relies on the provision of access by landowners and permission is required.

6. Link to the horizon scanning list derived for Britain in 2019

7. Horizon scanning - GB non-native species secretariat (nonnativespecies.org)

8. There have been four records of Anemanthele lessoniana which have been noted since the workshop (specifically in Glasgow, Banchory, Fochabers, Lochwinnoch)

9. There has been one record of Baccharis halimifolia which has been noted since the workshop (specifically at Machrihanish Links, Mull of Kintyre)

10. Risk assessment - GB non-native species secretariat (nonnativespecies.org)

11. Link to CBD definitions of non-native species

12. Product of Arrival, Establishment and Biodiversity Impact


Email: invasive_non-native_species@gov.scot

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