Table 2

Total effects for the variables monitored in the mesocosm-based field study in relation to sampling time, crayfish density and their interactions.

Variable Sampling time Crayfish density ST × CD

p ɳ 2 p ɳ 2 p ɳ 2
Total richness NS NS ** 0.439
EPT richness ** 0.313 NS ** 0.438
Total abundance NS NS * 0.383
Total biomass NS NS * 0.404
Dominance NS NS NS
Margalef's diversity index * 0.267 NS NS

Significant results are highlighted with *(p < 0.05) or **(p < 0.01), and corresponding magnitude of effect (η 2) expressed. NS = Non-significant results.

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