Skip to main content

Advertisement

Table 2 SADIE aggregation indices and associated p levels for the various combinations of earthworm assemblages identified in the three axes extracted from the CA

From: Dissecting the multi-scale spatial relationship of earthworm assemblages with soil environmental variability

Species assemblages I a v i(patch) v j(gap)
New genus 1 0.997 NS 0.871 NS −1.003 NS
Rest of species 1.018 NS 0.944 NS −1.015 NS
Endogecis 1.414 * 1.485 ** −1.430 *
Epigeics + Anecic 1.011 NS 1.188 NS −1.061 NS
Andiodrilus, Aymara and new genus 1 1.222 NS 1.343 * −1.222 NS
Martiodrilus, Glossodrilus and new genus 2 1.453 * 1.320* −1.428 *
  1. Ia = global index of aggregation; vj = mean negative index value (gap); vi = mean positive index value (patch). Departure from randomness is tested using 5,967 permutations. * p < 0.05; ** p < 0.01; NS, not significant.