WCT Multi-state Assessment February 10, 2003 



Table 17. Number and percentage (based on the 539 conservation populations that were 



evaluated) of westslope cutthroat trout designated conservation populations that have had 

 various types of conservation, restoration, and management actions applied to conserve 

 them as of 2002 36 



Table 1 8. Number and percentage (based on the 539 conservation populations that were 



evaluated) of designated westslope cutthroat trout conservation populations where human 

 management activities were known or believed (possible) to have impacted the population 

 by type of management activity 37 



List of Figures 



Figure 1 . Streains that were included (dark) and excluded (light) from historical distribution of 



westslope cutthroat trout 16 



Figure 2. Genetic status of westslope cutthroat trout populations throughout their range. Gray 



lines indicate historical range 19 



Figure 3. Genetic status of westslope cutthroat trout expressed as proportion of currently 



occupied habitats (in miles) classified within each genetic status category for assessment 



done in 2002 20 



Figure 4. Distribution of the number offish sampled for genetic testing, by level of introgression 



detected, for assessment done in 2002 20 



Figure 5. Map of central Idaho showing genetic status wdthin 17 different 4th code HUC's 



where genetic testing was limited 22 



Figure 6. Relative abundance related to habitat potential overlaying designated wilderness and 



roadless areas and national parks 26 



Figure 7. Designated conservation populations of westslope cutthroat trout (colored streams) 



throughout their range shown overlaying their current distribution (gray streams) as of 2002. 



28 



Figure 8. Frequencies of the number of miles occupied by designated conservation populations 



of westslope cutthroat trout throughout their range. Mileage bins are uniformly assigned at 



5.0 mile intervals in top graph and non-uniformly assigned in bottom graph 30 



Figure 9. Proportions of miles occupied by designated "isolet" (top) and metapopulation 



(bottom) westslope cutthroat trout conservation populations ranked into low to high levels 



of risk by risk factor (vertical axes) 33 



Figure 10. Proportions for numbers of designated "isolet" (top) and metapopulation (bottom) 



westslope cutthroat trout conservation populations ranked into low to high levels of risk by 



risk factor (vertical axes) 34 



Figure 1 1 . Distribution of the number of designated westslope cutthroat trout populations by 



composite population risk scores and population type (excludes genetics and disease risks). 



35 



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