79 

 DEMOGRAPHIC MONITORING TRANSECTS 



During 1990, three permanent monitoring transects were established 

 in populations of C. longistvlum on the Lewis and Clark National 

 Forest, The purpose of these transects is to provide more detailed 

 data on the life history and population dynamics of C. longistylum . 

 Data on survivorship and reproduction are important for 

 understanding the biology of plants with limited distributions, 

 especially when attempting to ensure their long-term preservation 

 (Massey and Whitson 1980) . Data may also indicate whether 

 population sizes are declining, which may be the result of 

 infestation by the weevil Rhinocyllus conicus . 



STUDY SITES: The locations and the geographic details for 

 each of the three transect locations, are as follows: 



1. Russian Creek: Little Belt Mountains, South Fork of the 

 Judith River drainage, just west of lower Russian Creek, 

 Judith Basin County. Take Forest Rd. # 487 (South Fork 

 of Judith River) ca. 22 miles southwest of Utica, 

 Montana. From Forest Rd. # 487, travel 0.15 mile south 

 on Forest Rd. # 2013; site is just east of road before 

 reaching a small drainage in meadow; TUN, RIOE, Section 

 11, SE^NW^iNW^. Location is mapped on a U.S.G.S. 

 topographic map Figure A, p. 80. 



From plot center: 



63° and 84 paces to the first tall tree in 

 gully. 



33° and 71 paces to short dead snag (the one to 

 the right) . 



198° and 27 paces to post at roadside. 



Elevation: 6520 feet 



■Slope: level to 3 percent 



Aspect: ENE 



