Fig. 4

Variation of abundance (a) and body mass (b) of M. ravelobensis from the edge into the interior of forest and calculation of their DEI, respectively. Mean values (dots) are plotted together with minimum and maximum values (whiskers). In addition, the first derivatives of the fitted curves (c, d: abundance and body mass) and the second derivatives (e and f: abundance and body mass) are plotted. The DEI (vertical arrows in (e) for the abundance and in (f) for the body mass) is determined as the distance between the two first inflection points in the curve of the second derivative