Figure 4. Proportion of new recruits in three consecutive 1- 

 years intervals for Botrychium hesperium . B. paradoxum and B. 

 watertonense populations. For each interval, values annotated by 

 different letters are significantly different by chi-square tests 

 (P<0.05, see Methods). 



0.7 



0.6 



5 0.5 



o 



Q. 



E 0.4 



D. 



E 0.3 



I 0.2 



a ' 



a 



V 



0.1 



0.0 



b 



«... 



V 



'•"■■■ 

 a 



T 



b 



• hesperium 

 V paradoxum 

 ▼ watertonense 



90-1 



91-2 

 Yeor 



92-3 



9 



