A methodological approach for assessing cross-site landscape change: Understanding socio-ecological systems by Sunderland, T, Abdoulaye, R, Ahammad, R, Asaha, S, Baudron, F, Deakin, E, Duriaux, J, Eddy, I, Foli, S, Gumbo, D, Khatun, K, Kondwani, M, Kshatriya, M, Leonald, L, Rowland, D, Stacey, N, Tomscha, S, Yang, K, Gergel, S, Van Vianen, J