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Table 2 (A) GLMs describing worms’ daily fecundity, as a proportion of lifetime fecundity, with fixed effects including the Selection Regime ((1) PDRP, (2) Dauer, (3) Control) and the presence or absence of N2 pheromone (Treatment). The explanatory variables in the model, the d.f., the AIC, the χ2 value of the LRT and the associated P value are all shown. Models significantly different from the preceding model are indicated in bold. (B) A summary of post hoc contrasts between the three different selection regimes within each GLM describing the daily fecundity as a proportion of lifetime fecundity (as Table 2A), showing the P values, with significant values indicated in bold

From: Pheromone modulates two phenotypically plastic traits – adult reproduction and larval diapause – in the nematode Caenorhabditis elegans

(A)
Models Explanatory variables d.f. AIC χ2 P value
day1_GLM1 Null 1 5540.52   
day1_GLM2 Treatment 2 3882.30 1660.2 <0.001
day1_GLM3 Treatment + Selection Regime 4 3842.63 43.67 <0.001
day2_GLM1 Null 1 3604.74   
day2_GLM2 Treatment 2 3328.38 278.39 <0.001
day2_GLM3 Treatment + Selection Regime 4 3302.25 30.10 <0.001
day3_GLM1 Null 1 7542.70   
day3_GLM2 Treatment 2 4734.52 2810.2 <0.001
day3_GLM3 Treatment + Selection Regime 4 4710.01 28.52 <0.001
day4_GLM1 Null 1 3878.1   
day4_GLM2 Treatment 2 2618.27 1261.8 <0.001
day4_GLM3 Treatment + Selection Regime 4 2591.13 31.14 <0.001
(B)
Models    
   1. PDRP 2. Dauer
day1_GLM3 3. Control <0.001 <0.001
day1_GLM3 2. Dauer 0.498 -
day2_GLM3 3. Control 0.693 <0.001
day2_GLM3 2. Dauer <0.001 -
day3_GLM3 3. Control <0.001 0.94
day3_GLM3 2. Dauer <0.001 -
day4_GLM3 3. Control <0.001 <0.001
day4_GLM3 2. Dauer 0.3805 -