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Table 4 Correlation between time, abundance and the ecological indices for the coverage of benthic species

From: Ecological succession of benthic organisms on niche-type artificial reefs

Kendall τ correlation

τ (tau)

 

Time

N

H

d

J

D

Time

 

0.27

0.88

0.22

0.88

0.65

N

− 0.35

 

0.87

0.002

0.87

0.64

H

0.05

− 0.05

 

0.76

0.00

0.01

d

0.39

− 0.97

0.76

 

0.76

0.76

J

0.05

− 0.05

 

0.10

 

0.01

D

− 0.14

− 0.15

− 0.81

0.10

− 0.81

 
 

p value = 0.005

 
  1. τ (tau) Kendall coefficient of correlation, N abundance, d Margalef’s index, H’ Shannon’s index, J Pielou’s index, D Simpson’s index