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Table 2 Parameters included in final GLMMs for both performance metrics at each site, with random intercept terms for transmitter and Julian day

From: Performance of an ultrasonic telemetry positioning system under varied environmental conditions

Site Response variable Parameters estimated AIC Δ AIC D 2
Coastal Pos. Error VA + diel + mean wave period + wtemp 6,755.8 74.3 0.01
  Efficiency VA + diel + mean wtemp 5,449 1,661.8 0.23
Estuarine a Pos. Error VA + wtemp + EC + absQ 67,752 982 0.01
  Efficiency VA + diel + mean wtemp + mean Q 8,110.4 438.2 0.05
Riverine Pos. Error VA + river stage 11,338 45 0
  Efficiency VA + mean river stage + mean turb + mean wtemp 4,697.1 430.6 0.09
  1. Parameters abbreviations include: VA = viewing angle, diel = day vs. night factor, wtemp = water temperature, EC = electrical conductivity, absQ = absolute discharge, mean Q = mean discharge values, turb = turbidity. Δ AIC is the difference in AIC scores between a null model (random effects only) and the final model. D2 is calculated as the deviance explained by the model over unexplained deviance in a null model (random effects only), adjusted for sample size and number of model parameters [24].
  2. aModels also included a random slope term for macrophyte index.