Comparison of the original vulnerability scores (v _orig) – all attributes included in the productivity-susceptibility analysis – with the four scenarios involving attribute removal: v ₁ = no mean trophic level (TL); v ₂ = attributes in v ₁ and without the intrinsic rate of population growth (r); v ₃ = attributes in v ₂ and without maximum age (A _max); v ₄ = attributes in v ₃ and without natural mortality (M). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)