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Table 1 List of plants and their frequencies observed in the horizontal (sample 1–6) and vertical transect (sample 7–12)

From: Alpine ecology, plant biodiversity and photosynthetic performance of marker plants in a nitrogen gradient induced by Alnus bushes

Number of plots

L-val.

Horizontal plots

Vertical plots

1

2

3

4

5

6

7

8

9

10

11

12

Species

             

Achillea macrophylla

4

 

+

          

Alnus viridis

4

4

    

4

      

Athyrium distentifolium

3

 

2

          

Avenella flexuosa

2

   

+

   

+

+

+

2

+

Calamagrostis varia

2

1

1

  

2

 

4

     

Dryopteris dilatata

3

+

 

+

 

+

 

+

  

+

  

Festuca rubra

3

     

+

  

+

   

Gentiana purpurea

2

   

1

+

+

  

+

+

  

Homogyne alpina

2

 

+

 

1

2

+

 

+

  

+

 

Juniperus communis

2

    

+

       

Ligusticum mutellina

3

 

+

          

Lilium martagon

3

 

+

          

Luzula silvatica

2

         

+

  

Oxalis acetosella

2

+

1

+

1

  

1

+

+

+

+

+

Phleum alpinum

2

     

+

      

Rhododendron ferrugineum

2

+

 

1

2

2

+

 

+

2

3

 

5

Solidago virgaurea

3

     

+

      

Sorbus aucuparia

2

    

+

 

+

     

Vaccinium myrtillus

2

1

 

+

2

3

1

 

+

1

+

3

+

Vaccinium uliginosum

2

   

3

2

   

3

3

3

 

Veratrum album

4

1

4

1

 

1

3

3

1

 

+

 

+

  1. The frequency of the species found is given following the cover abundance scale of Braun-Blanquet [1], ranging from +: 2%, 1: 2–5%, 2: 5–25%, 3: 25–50%, 4: 50–75%, 5: 57–100%. L-val. = Landolt N indicator value Landolt et al. [17]
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BMC Ecology

ISSN: 1472-6785

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