A handbook for the standardised sampling of plant functional traits in disturbance-prone ecosystems, with a focus on open ecosystems by Wigley, BJ, Charles-Dominique, T, Hempson, GP, Stevens, N, te Beest, M, Archibald, S, Bond, WJ, Bunney, K, Coetsee, C, Donaldson, J, Fidelis, A, Gao, X, Gignoux, J, Lehmann, C, Massad, TJ, Midgley, JJ, Millan, M, Schwilk, D, Siebert, F, Solofondranohatra, C, Staver, AC, Zhou, Y, Kruger, LM