Shore, R.F. et al. (2003). Spatial and temporal analysis of second-generation anticoagulant rodenticide residues in polecats

Polecats in Britain are currently expanding their range eastwards from Wales to reoccupy central and eastern areas of England. Second-generation anticoagulant rodenticides (SGARs), to which polecats are exposed by eating contaminated prey, are used more extensively in these central and eastern regions, leading to fears of increased exposure, and possible resultant mortality.