14 

 DEMOGRAPHIC MONITORING DATA 



CATEGORIES 



R = Rosette 



Rs = small rosette, 1 whorl of basal leaves 

 Rm = medium rosette, 2 whorls of basal leaves 

 Rl = large rosette, > 2 whorls of basal leaves 



P = Plant that has bolted. 



Ph(x)= Plant with (x) number of open, flowering 



heads 

 Pb(x)= Plant with (x) number of closed heads 



(involucral bracts completely enclosed 



flowers) 



Dead - a dead stem from the previous year 



* Ph(x)b(x)h(x)b(x) indicates a plant with more than one 

 flowering stem per rosette 



Additional categories were added as necessary in 1991. 

 These included: 



? - Plants that had been recorded in the previous year but 

 were not relocated in the current year. When present, 

 possible causes of disappearance are noted. 



Gone - Plants that were recorded as dead in the previous 

 year, and which had decomposed or disappeared by the current 

 year. For example: Plants that had flowered in 1989, were 

 recorded as dead in 1990 (dead flowering stalks were still 

 visible) , and as gone in 1991 (when stalks and leaves had 

 disappeared) . 



Grazed - Many of the rosettes, especially at the Belt Park 

 site, had been grazed. It was thought that this might have 

 an effect on the ability of the plant to produce and store 

 enough energy to eventually flower. Information was 

 recorded as follows. 



Grazed heavily - Plant was significantly reduced in size, at 

 least two leaves had been removed. 



Grazed - Plants that had a leaf or portion of a leaf 

 removed. 



Finally, general observations about the site and plants were 

 noted where possible. 



i.e. moldy - mold was obviously present on leaves 



rodent mound - recent rodent nests, or tunnels 

 were present 



For new recruits (or plants that were missed in 1990 but 

 observed in 1991) direction and distance from stake and 

 plant category are marked in bold type in the tables below. 



