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Table 1 Summary of results of statistical models

From: Evidence of indirect symbiont conferred protection against the predatory lady beetle Harmonia axyridis in the pea aphid

Dependent variable Name of statistical test Statistic Whole model Symbiont Weight at larval day 8 Symbiont × weight interaction
Overall survival from hatching to adult emergence Generalized linear model (binomial distribution) Likelihood ratio χ 2 28.10** 24.39*** 5.50* 7.62
Larval survival Cox’s proportional hazards model Likelihood ratio χ 2 13.36 8.80* 1.16 5.55
Pupal survival Generalized linear model (binomial distribution) Likelihood ratio χ 2 7.68 7.67* 0.11 0.50a
Larval development time General linear model (least square) F4,221 26.85*** 12.32*** 67.60*** 0.99a
Pupal development time General linear model (least square) F4,212 1.70 1.20 2.81 1.18a
Female adult weight at emergence General linear model (least square) F4,77 3.81** 4.95** 0.12 3.76a
Male adult weight at emergence General linear model (least square) F7,87 4.35** 2.15 0.20 7.57***
  1. Significant results for statistical analyses are indicated by asterisks
  2. * 0.05 < p < 0.01, ** 0.009 < p < 0.00011, *** p < 0.0001
  3. aBased on resulting AICc scores, non-significant interaction terms were removed from the final model when the Δ AICc >2. The results of the final model are reported for the other terms