Trusler og/eller potentielle trusler for egernet (Sciurus vulgaris) såvel som for plantekolonier og naturtyper er blevet konstateret eller forudset i adskillige ad hoc-undersøgelser.
Threats, and/or potential threats, to the Eurasian red squirrel (Sciurus vulgaris), as well as to plant communities and habitats have been demonstrated or anticipated by several ad hoc studies and surveys.