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. 2022 May 6;50(10):2171–2193. doi: 10.1080/02664763.2022.2068513

Table 5.

Results for dragonfly population data (cf. Section 5.1).

  Component Lower95 Median Upper95 PSRF F+
( y1) Exuviae: (Intercept) −4.11 1.20 6.38 1.017 0.672
  Treatment −0.86 −0.13 0.58 1.001 0.384
  2016 −1.79 0.57 2.75 1.008 0.716
  2017 −2.64 −1.39 −0.32 1.004 0.009
  2018 −3.52 −1.95 −0.66 1.007 0.004
  Emersion (fraction) −1.09 0.85 3.11 0.999 0.795
  pH −0.68 0.11 0.88 1.013 0.595
  Redox (V) −4.31 −0.12 4.20 1.013 0.474
  Oxygen (fraction) −4.47 −2.66 −0.68 1.005 0.005
  EC (mS/cm) −3.01 −0.71 1.59 0.999 0.264
  Temperature ( C) −0.12 0.10 0.31 1.014 0.812
  Water depth (m) −3.13 0.01 2.68 1.005 0.504
  Sludge thickness (m) −4.92 −1.27 1.59 1.003 0.199
( y2) Egg-laying females: (Intercept) −6.53 −1.43 3.31 1.029 0.281
  Treatment −0.77 −0.05 0.78 1.004 0.463
  2016 −3.02 −0.74 1.90 1.015 0.266
  2017 −1.29 −0.22 0.76 0.998 0.355
  2018 −4.66 −2.65 −0.97 1.014 0.000
  Emersion (fraction) −2.97 −0.68 1.99 1.020 0.319
  pH −0.49 0.62 1.51 1.037 0.892
  Redox (V) −3.96 0.80 4.93 1.002 0.620
  Oxygen (fraction) −3.04 −1.18 0.81 1.015 0.101
  EC (mS/cm) 0.30 2.46 4.83 1.012 0.973
  Temperature ( C) −0.41 −0.13 0.14 1.013 0.159
  Water depth (m) −2.00 0.26 2.27 0.999 0.593
  Sludge thickness (m) −2.94 −0.47 2.27 0.999 0.352
(θ) Correlation:   0.22 0.53 0.80 1.010  
( π) Zero inflation: π1: (0,0) 0.00 0.07 0.14 1.012  
  π2: (Exuviae,0) 0.00 0.04 0.13 1.002  
  π3: (0,Eggl.females) 0.00 0.05 0.14 1.005  
( Σ) Random effects: Σ11: Variance (Ex.) 0.23 1.94 5.24 0.999  
  Σ12: Covariance −0.53 0.11 1.75 1.012  
  Σ22: Variance (Egg-l. f.) 0.00 0.09 1.76 1.012  

Notes: The 1st and 3rd columns give the bounds of 95% posterior confidence intervals, computed as the 0.025 and the 0.975 empirical quantiles of the posterior samples; the 2nd column lists the posterior median. The 4th column lists the Gelman-Rubin potential scale reduction factors (PSRFs). The last column gives the fraction of posterior samples that were positive. High (low) fractions indicate that the majority of posterior samples were positive (negative), indicating a systematic effect. Covariates for which at least 80% of the sampled parameters had the same sign have been put in bold. The relative covariate effects on the marginal medians are listed in Table 6.