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Devastating Decline of Forest Elephants in Central Africa

Figure 4

Boxplots of indices of elephant abundance and hunting intensity.

Summaries shown are the natural logarithm of: (A) elephant dung encounter rate per 100 km grouped by the presence/absence of wildlife guards, (B) elephant dung encounter rate per 100 km grouped by the level of hunting intensity (group cutpoints are 0.6 and 1.75 hunter sign/km), and (C) hunter-sign frequency per 100 km grouped by the presence/absence of wildlife guards. Box-widths are proportional to the number of observations in each group.

Figure 4

doi: https://doi.org/10.1371/journal.pone.0059469.g004