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. 2017 Mar 22;7:44913. doi: 10.1038/srep44913

Table 1. Pearson correlation coefficients# (r) between wind parameters (wind speed, wind frequency, and wind run) and frequency of gene flow at different distances.

Wind parameters   Overall gene flow Distance from the pollen source
0.1 1 5 15 25 35 50
      m
Wind speed r (Pearson) 0.29** 0.65** 0.58** 0.48** 0.29* 0.22 0.19 0.11
  df 394 54 30 54 54 54 54 26
Wind frequency r (Pearson) 0.26** 0.57** 0.57** 0.52** 0.42** 0.46** 0.34** 0.40*
  df 394 54 30 54 54 54 54 26
Wind run r (Pearson) 0.29** 0.65** 0.56** 0.51** 0.36** 0.35** 0.26 0.15
  df 394 54 30 54 54 54 54 26

#Pearson correlation coefficients were tested at two significance levels, P < 0.05 (*), and P < 0.01 (**).

Abbreviations: df, degrees of freedom.

Gene flow data at 50 m was only from the four ordinal directions (NE, NW, SE, SW).