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Forest Elephant Crisis in the Congo Basin

Figure 4

Estimated Conditional Dependence of Elephant Dung-Pile Numbers on Distance to Road (in Kilometres)

Estimates (solid line) and confidence intervals (dashed lines), with a rug plot indicating observation density along the bottom of the plot, are shown. To avoid over-fitting, the degrees of freedom were restricted to two for the distance-to-road covariate.

Figure 4

doi: https://doi.org/10.1371/journal.pbio.0050111.g004