Vincent de Leijster

171 Appendices Table A5-4. The ecosystem services variables’ response trajectories on time since transition to agroforestry. P1 and P2 are the first and second coefficient of the model. For an ordinary linear regression (OR), P1 is the intercept and P2 the slope (estimate), and for the Michaelis-Menten model P1 is the asymptote (B max ) and P2 is the half-time coefficient (B 1/2 ). R 2 and t-value are obtained from a correlation test between the observed and predicted variables. Ecosystem service Indicator Unit Shape P1 ± SE P2 ± SE R 2 t-value P-value Carbon stock Above-ground carbon (AGC) Mg C / ha Asymptote 31 ± 5.6 3.5 ± 2.7 0.06 2.1 0.04 Below-ground carbon (BGC) Mg C / ha OLR 82 ± 8.3 0.3±0.5 -0.01 0.63 0.53 Total carbon stock Mg C / ha OLR 99 ± 6.8 0.5±0.4 0.01 1.25 0.22 Erosion and water infiltration Soil loss (RUSLE) Mg soil loss / ha / y OLR 2.7 ± 0.7 0.02±0.05 -0.02 0.4 0.69 Herbaceous cover % soil covered with vegetation GLM- Gamma 45 ± 1.2 -1.0±1.0 0.05 1.9 0.03 Litter cover % soil covered with litter OLR 4.6 ± 0.3 0.01±0.01 -0.01 0.70 0.48 Soil stability Stability score OLR 19.5 ± 5.6 -1.9±1.7 0.007 -1.1 0.22 Habitat provisioning Butterfly richness # species Asymptote 16 ± 2.2 3.6±1.8 0.19 2.3 0.03 Butterfly abundance # individuals Asymptote 50 ± 11 3.8±1.1 0.13 1.9 0.07 Butterfly diversity Shannon index Asymptote 2.4 ± 0.3 0.4±0.1 0.33 3.1 0.006 Epiphyte abundance # groups Asymptote 2.7 ± 0.4 3.1±2.1 0.12 2.4 0.02 Pest control Coffee berry borer incidence % incidence OLR 25 ± 7.7 0.1±0.6 -0.02 0.13 0.89 Leaf miner; Plant damage Damage score (0-4) OLR 1.1 ± 0.4 0.01±0.03 -0.04 0.55 0.59 Leaf miner; Leaf damage Damage score (0-4) OLR 1.3 ± 0.3 0.01±0.02 -0.05 0.40 0.70 Provisioning services Coffee yield (survey) kg green coffee / ha / y GLM- Gamma 140 ± 1.0 -1.0±1.0 0.03 -1.6 0.08 Coffee productivity (plot) kg berries / plant OLR 9.5 ± 1.6 -0.13±0.10 0.01 1.2 0.23 Coffee bean quality (plot) Ratio fresh:dry weight Asymptote 0.26 ± 0.02 0.81±0.51 0.07 2.0 0.06 Timber volume m 3 wood / ha Sigmoid 3.0 ± 0.4 0.06±0.02 0.03 1.4 0.03