Toward Reliable Estimates of Abundance: Comparing Index Methods to Assess the Abundance of a Mammalian Predator
Figure 3
Predicted relative red fox abundance in the Black Forest extrapolated from the results of the feces counts (left) and the camera traps (middle).
Difference between the two predictions in percent (prediction from feces counts – prediction from camera trap, right). The left figure is reprinted from [25] under a CC BY license, with permission from Springer, original copyright 2013.