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Table 2 Effects of grazing and light intensity on the consumption of the native Stypopodium zonale and the non-native Grateloupia imbricata by Paracentrotus lividus as assessed in no-choice feeding assays

From: A non-native macroalga is less attractive for herbivores but more susceptible to light limitation and grazing stress than a comparable native species

Source of variation SS df MS F p
Stypopodium zonale
 Grazing <0.001 1 <0.001   15.302 <0.001
 Light <0.001 5 <0.001   1.856 0.111
 Light × Grazing <0.001 5 <0.001   2.451 0.040
Grateloupia imbricata
 Grazing <0.002 1 <0.002   6.130 0.015
 Light <0.002 5 <0.001   1.102 0.365
 Light × Grazing 0.002 5 <0.001   1.610 0.166
  1. Results from two-factorial ANOVA. Significant differences are shown in italics