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Table 1 Comparison of models from stage 1

From: Time budget, oxygen consumption and body mass responses to parasites in juvenile and adult wild rodents

Effect tested Dependent variables
Oxygen consumption Body mass change Resting Feeding Grooming Other activities
1. Null model 0 0 0 0 0 0
2. Treatment × Experimental time(ET) 0 0 0 0 0 0
3. Treatment × ET + Activity 0 NA NA NA NA NA
4. Treatment × ET × Activity 0 NA NA NA NA NA
5. Activity 0 NA NA NA NA NA
6. Age NA 0 NA NA NA NA
7. Treatment × ET × Age 0 100 % 0 0 0 0
8. Treatment × ET × Time of the day (TD) 0 NA 0 0 0 0
9. Treatment × ET × TD × Age 0 NA 100 % 100 % 100 % 100 %
10. Treatment × ET + Age NA 0 NA NA NA NA
11. Treatment × ET × TD × Age + Activity 100 % NA NA NA NA NA
  1. Model selection results of comparison between models describing the variability in the oxygen consumption (ml  g− 1 min− 1), body mass change (%), and the time (min) devoted to the four major activities of juvenile and adults rodents. Values are weights (w i) in percentages of Akaike information criterion corrected for sample size—the relative likelihood of the current model, given the data and the set of models. The set of models includes the null model (all relevant effects), the pure treatment effect model (#2; the interaction between flea-infested and flea-free rodents and the experimental time (first two versus last two days of experiment)), and additive or multiplicative effects of the flea treatment, with age (juveniles versus adults), activity (total time being active), and the time of the day (light versus dark hours). In all models that include interaction terms, the lower order interactions were included although not shown. The best models supported by the data (wi > 20 %) are marked in bold and were used for stage 2
  2. NA Not applicable