Recommended citation: Global Invasive Species Database (2025) Species profile: Anser caerulescens. Downloaded from http://iucngisd.org/gisd/speciesname/Anser+caerulescens on 14-01-2025.
The following 0 contacts offer information an advice on Anser caerulescens
MN
Anser caerulescens
Date assessed
2021-10-21
Year published
2022
Eicat category
MN (Minor)
Justification for EICAT assessment
Hybridisation of the Snow Goose with both Greylag Geese (Anser anser) and Barnacle Geese (Branta leucopsis) has been recorded in the wild. There is no evidence that this has caused a decline of these species (Banks et al., 2008; Ottenburghs et al., 2016).
Confidence rating
Low
Mechanism(s) of maximum impact
Hybridisation
Countries of most severe impact
Netherlands; United Kingdom
Description of impacts
The Snow Goose hybridizes with the Greylag Goose and Barnacle Goose in Europe.
Assessor
Thomas Evans; Tom Allmert
Contributors
Reviewers
EICAT authority
Recommended citation
Thomas Evans, Tom Allmert (2025). Anser caerulescens. IUCN Environmental Impact Classification for Alien Taxa (EICAT).