Fig 4. Estimated relationships between the probability of finding O. europaea and woody species richness, soil depth, slope and logging, for different ontogenetic stages (adult, sapling, seedling; see Table 2) in Hugumburda dry Afromontane forest in northern Ethiopia.

Note that the explanatory variables were standardized before analysis and plotting. Observed values ranged from 6 to 24 species for woody species richness, from 0.01 to 1.20 meters for soil depth, from 0.03 to 0.94 degrees for slopes, and logging intensity from 0 to 13 for number of stumps per 20 × 20 m observation plots for logging.