Figure 1. Soil Ecosystem engineers relation with other soil biological components. (Modified from Lavelle, 1997)

From

Earthworms: 'Soil and Ecosystem Engineers' – a Review

Roshan Babu Ojha, Deepa Devkota

World Journal of Agricultural Research. 2014, 2(6), 257-260 doi:10.12691/wjar-2-6-1