setting. In 1991, three demographic monitoring belt transects 

 were established in the BLM exclosure by the method described in 

 Lesica (1987), and an additional belt transect was established 

 near Horse Prairie, in a roadside right-of-way setting also on 

 BLM land. Data from the Badger Pass exclosure belt transects are 

 tallied as a single data set, making up the same approximate 

 sample size as the single Horse Prairie belt transect though 

 covering a larger sample area. 



This report summarizes results from the third year of revisiting 

 marked plants in the Badger Pass exclosure, and the second year 

 of reading the transects in both the exclosure and the Horse 

 Prairie area. The transect readings provide important data not 

 available in the marked plant study. Detailed transect readings 

 are needed for a minimum of four years to make trend assessments. 



II. STUDY SITES 



The study sites and sampling locations are described in detail in 

 previous monitoring establishment and progress reports (Achuff 

 1990, 1991) . Notes and revisions on site transect and 

 permanently-marked plant layouts are incorporated on a corrected 

 table in Appendix B. This is to replace all previous site 

 tables. 



It was learned that road maintenance operations along FS Road 

 7340.1 had scraped out the right-of-way segment where the Horse 

 Prairie transect is located in the late 1980s (Svoboda pers. 



comm. ) . 



Study site experimental considerations are treated in the 

 discussion section. 



III. MONITORING METHODS 



Methods for recording data from marked plants and reading the 

 transects are provided in Achuff (1991). In order to examine 

 differences in population structure, Penstemon lemhiensis 

 individuals were placed into one of three size categories: 



1 Seedling category = "S". It is represented by small 



rosettes with cotyledons evident or rosette diameter <15 mm. 

 This was initially though to approximate the juvenile life 

 history stage. However, several of the plants in the "S" 

 class were reappearing plants, and do not correspond with a 

 first year age class. In 1992, very small rosette buds that 

 were part of largest plants were also noted for the first 

 time and placed in the "S" class. 



