Ecological Archives A025-080-A2

Jennifer L. Bufford and Orou G. Gaoue. 2015. Defoliation by pastoralists affects savanna tree seedling dynamics by limiting the facilitative role of canopy cover. Ecological Applications 25:13191329. http://dx.doi.org/10.1890/14-0953.1

Appendix B. Seedling and sapling density, relative growth rate, and survival in low and high harvest intensity populations over time.

FigB1

Fig. B1. Seedling and sapling density in 12 populations of Khaya senegalensis in two regions and harvest intensities measured across four years and averaged across populations. We measured new seedling density, seedling density (<2 cm basal diameter) and sapling density (>2 cm basal diameter). Error bars are one standard error. Only the mixed effects model of sapling density included the interaction between region and harvest intensity as a significant predictor.


 

FigB2

Fig. B2. Relative growth rate, measured as the change in basal diameter, of Khaya senegalensis seedlings in populations in two different regions and under different harvesting intensities. Error bars represent one standard error of the inter-population variation. In mixed models of relative growth rate for seedlings and saplings year, but not region or harvest intensity, was a significant predictor.


 

FigB3

Fig. B3. The probability of Khaya senegalensis seedling survival in 12 populations across two regions and different harvest intensities, measured over four years. Error bars are one standard error of the inter-population variation. In mixed models of seedling, but not sapling, survival, region, year and the interaction between region and harvest were all significant predictors of survival.


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