Accounting for uncertainty when mapping species distributions: The need for maps of ignorance

1. Rocchini, D.
2. Hortal, J.
3. Lengyel, S.
4. Lobo, J.M.
5. Jiménez-Valverde, A.
6. Ricotta, C.
7. Bacaro, G.
8. Chiarucci, A.