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Table 5 Regressions for non-phylogenetic and phylogenetic tests.

From: Comparative tests of ectoparasite species richness in seabirds

 

Residual total species richness

Residual genus richness

Residual Ischnocera species richness

Residual Amblycera species richness

 

Actual Values

Contrasts

Actual Values

Contrasts

Actual Values

Contrasts

Actual Values

Contrasts

Body Mass

 

-

   

-

 

-

Wingspan

      

+

 

Body Size

 

-

   

-

  

Bill Length

        

Longevity

+

     

+

 

Clutch Size

-

 

-

 

-

   

Population Size

+

+

+

+

+

+

+

+

Geographic range

 

+

-

+

 

+

 

+

Diving behaviour

   

+

    
  1. Simple regressions for single variables controlled for sampling effort using the residuals from Google Scholar citation counts. Signs indicate whether the slope was negative or positive.