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Table 2 Changes in the cover* of T. umbrina biofilm in relation to the aspects of surfaces

From: Ecological and taxonomic characterisation of Trentepohlia umbrina (Kützing) Bornet growing on stone surfaces in Lazio (Italy)

Site aspects

PL

GH

OA

CA

RP

SS

LB

BZ

TL

N

0.5

0

0

0

0

 

0

0.9

0.9

  

0.6

0.6

   

0.5

0.3

          

0.7

0.7

0.9

0.9

0.9

0.8

0.8

0.8

0.8

0.8

0

0.7

 

0

0

0

 

0.9

0.9

0.9

0.9

0.7

NE

         

0.9

0.9

  

0.7

0.7

0

0.5

0.5

    

0

0.5

0

0

       

0.7

0.7

      

0

0

0

0.5

 

0.8

0.8

  

E

0

0

0

 

0

 

0

0.9

0.9

       

0.7

0.7

        

0.5

0.5

     

0.4

0.4

0.2

0

0

 

0

 

0

0

0

 

0

 

0.3

0

0

SE

           

0.8

0.8

  

0

  

0

0

0

0

0

0

0

0.6

               

0

0

0

0

  

0

  

S

0

0

0

0

0

 

0

  

0.4

0.4

  

0

0

                          

0

0

0

 

0

 

0

0

0

SW

       

0.6

0.6

  

0.7

0.6

  

0

  

0.8

0.9

0.7

0.7

0

0.2

0

0.8

     

0

         

0.4

0.3

0.3

  

0

0.3

  

W

0

0

0

0

 

0

0

      

0

0

 

0.7

0

          

0.5

0.4

0.6

0.6

0.7

0.4

0.4

0.7

 

0

0.7

0

0.7

0.6

0.5

0.5

 

0.7

0.6

0.6

0

0

NW

         

0.9

0.9

    

0.8

0.7

0

0.3

0.3

0.4

0.4

0.7

0.7

0.6

0

   

0.7

0.9

0.8

 

0.8

0.8

     

0.8

0.7

0.3

0.5

  

0.9

0.9

  
  1. *According to the van der Maarel scale converted in decimal values. The acronyms of the site referred to Table 1