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Table 2 Effects of gall type and number of associated parasite species on average mortalities in individual galler species

From: Reciprocal diversification in a complex plant-herbivore-parasitoid food web

Source Type III sum of squares df Mean square F p Value
Corrected model 0.378* 6 0.063 3.834 0.005
Intercept 2.431 1 2.431 147.756 <0.001
Number of parasite species 0.001 1 0.001 0.040 0.843
Gall type 0.362 5 0.072 4.401 0.003
Error 0.576 35 0.016   
Total 20.437 42    
Corrected total 0.954 41    
  1. Gall type was included as a fixed factor and number of parasite species as a covariate in the ANCOVA model (see Figure 5B). Mortalities were arcsine square root transformed prior to the analysis.
  2. *R2 = 0.397 (adjusted R2 = 0.293).