melampyrum cristatum l. - a rare river corridor plant in wielkopolska and poland

16

Upload: wojciech-stachnowicz

Post on 27-Jul-2016

214 views

Category:

Documents


1 download

DESCRIPTION

Melampyrum cristatum is an extremely rare, native, hemi-parasite, vascular plant, recently considered to be extinct in Poland. The article presents new localities of the species recorded in 2007-2012 in the valley of the River Warta. Local distribution of M. cristatum in the Natura 2000 sites: PLH300012 and PLH300053, as well as its updated regional and national ranges are shown on maps and interpreted on the background of the geomorphic diversity of habitats. The results suggest that in Poland the species is distributed mainly along valleys of large, lowland rivers, which corresponds with its ‘River Corridor Plant’ status in C. Europe. The species rarity is discussed considering its phytocoenological scale, the riverine distribution pattern and chosen biological features. Natural habitat heterogeneity along with changeable water regime in floodplains, as well as potential limitations of myrmecochoric seed dispersal, may constitute potential reasons for the species low frequency.

TRANSCRIPT

  • 

    

    

    

    

    

    

    

    

    

  • 

    

    

      

     

    

     

     

    

  •  

    

    

    

    

    

  •  

     

    

    

     

     

     

     

           

      

       

     

     

         

     

     

     

     

     

      

      

    

          

       

       

      

       

       

       

       

       

      

       

     

        

       

     

       

     

      

    

  •  

      

     

         

       

     

       

        

      

      

      

      

       

       

      

      

     

         

     

     

     

      

       

      

     

    

    

    

     

       

      

      

      

      

      

     

        

        

        

        

        

        

         

    

    

     

      

  •  

    

    