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Table 1 Spearman's rank correlation test between the six indices of species niche breadth.

From: A specialist-generalist classification of the arable flora and its response to changes in agricultural practices

 

I1 (RS)

I2 (CCA-SD)

I3 (CCA-Rao)

I4(OMI)

I5 (IV)

I6 (Sophy)

I1(RS)

1

0.615**

0,736**

0,315**

0,182*

0,692**

I2(CCA-SD)

 

1

0.863**

0.602**

0.309**

0.530**

I3(CCA-Rao)

  

1

0.475**

0.210**

0.630**

I4(OMI)

   

1

0.260**

0.226**

I5(IV)

    

1

0.153*

I6(Sophy)

     

1

  1. Abbreviations: see Table 1. *P < 0.05; ** P < 0.01
  2. Note: correlations are based on n = 152 weed species
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BMC Ecology

ISSN: 1472-6785

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