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Final structural equation models for plant similarity (percentage of plant community similarity to the average species composition of the reference ecosystem) in Madrid and Málaga. The effects of age and root biomass were composite to estimate plant effects on plant succession. Goodness-of-fit statistics for the Madrid (χ2 = 0.716, P = 0.397; NFI = 0.997; RMSEA = 0, P = 0.464) and Málaga (χ2 = 1.587, P = 0.452; NFI = 0.994; RMSEA = 0, P = 0.542) models. Rest of legend as in Fig. 4.
