Six observation plots of 3.14m2 each were installed randomly within the llashipa site in 2005 and leaf hight was observed in 4-week intervalls untill 2008
Each frond has its own frond number (SampleID), which is unique within the plot
Height above surface of specific leave part: the entire height of frond was measured
Composition of bracken species: ca. 70% Pteridium arachnoideum, 30% Pteridium caudatum
