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Table 2 Summary temperature data from synthesis of Group 2: Large scale studies (meadows/moorland vs forests)

From: What are the effects of wooded riparian zones on stream temperature?

Parameter No. of effect sizes (no.independent articles) Range (1)Weighted average (* = Heterogeneity P <0.05) (2)Unweighted average (* = Heterogeneity P <0.05) (3)Aggregated weighted average (4) Publication bias? p-value of Egger’s test (on aggregated data) (5) Test of study influence
Mean 10(10) 0.25–5.23 1.48* 1.68* - P = 0.27 yes1
    (0.60, 2.36) (0.73, 2.63)    
Summer mean 7(7) 0.75–5.23 1.39 2.03* - P = 0.43 Ns
    (0.68, 2.10) (0.85, 3.21)    
Spring mean 6(6) −0.05–2.67 1.48* 1.61* - P = 0.97 yes2
    (0.21, 2.76) (0.79, 2.42)    
Max 5(5) 1.37–6.89 4.94* 4.51* - P = 0.52 Ns
    (2.70, 7.17) (2.17, 6.84)    
Summer max 3(3) 1.37–6.27 2.58 3.73* - - Ns
    (0.25, 4.90) (0.95, 6.50)    
Spring max 2(2) 3–6.89 6.610 4.95* - - Ns
    (4.66, 8.56) (1.14, 8.75)    
  1. 1Removal of Harding et al. 2006 [36] decreases the effect size but it is still positive.
  2. 2Removal of Harding et al. 2006 [36] decreases the effect size while removal of Dineen et al. 2007 [35] increases the effect size.