Table 3. Topology of 135 real soil food webs.
5th percentile link length | median link length | 95th percentile link length | 5th percentile link slope | median link slope | 95th percentile link slope | |
organic grasslands | 0.47±0.09 | 2.15±0.23 | 4.49±0.27 | −2.88±0.51 | −0.49±0.07 | 2.61±0.73 |
conventional farms | 0.50±0.09 | 2.27±0.25 | 4.76±1.03 | −3.26±0.70 | −0.53±0.11 | 2.56±0.62 |
semi-intensive farms | 0.49±0.08 | 2.14±0.29 | 4.52±1.09 | −3.91±1.02 | −0.57±0.08 | 2.84±0.87 |
intensive farms | 0.43±0.06 | 1.94±0.24 | 4.26±0.31 | −3.64±0.73 | −0.45±0.09 | 3.45±0.88 |
forests | 0.36±0.04 | 1.43±0.12 | 3.14±0.28 | −5.41±1.27 | −0.37±0.14 | 4.36±1.21 |
fields | 0.42±0.07 | 2.03±0.18 | 4.46±0.63 | −3.42±0.96 | −0.44±0.11 | 3.01±0.68 |
The trophic link length difference between all kinds of agroecosystems was not significant at the 5% level according to a one-way ANOVA. Forests exhibited much shorter trophic links and a much higher variance in the slopes of the trophic links than the other agroecosystems. More explanations in the text.