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<br /> 20 <br />C) Vi' <br />C) ~ 15 <br />...... 0 <br />C ~ <br />& <br />CO :c <br />.!!1 <br /> 'm 10 <br /> > <br /> '" <br /> ~ <br /> Q) <br /> 1il <br /> ~ <br /> 0 5 <br /> '" <br /> ro <br /> <br /> <br />o <br /> <br />Aug <br /> <br />Sep <br /> <br />Oet <br /> <br />Month <br /> <br />Nov <br /> <br />Dee <br /> <br />. PRE-DAM (1929-61) 0 POST-DAM (1962-91) II STUDY PERIOD (1992-97) <br /> <br />Figure 3.14. Comparison of modeled backwater area for three historical periods in San <br />Juan River Reaches 1 through 4 (Source: Bliesner 1999b). <br /> <br />SAN JUAN RIVER <br />ISLANDS vs HABITAT COUNTS <br /> <br />20 <br />~18 <br />'E 16 <br />(; 14 <br />c <br />j:"12 <br />~ 10 <br />8 8 <br />~ 6 <br />:3 4 <br />!!l 2 <br />o <br /> <br />~ <br /> <br />...' <br /> <br /> <br />~. <br /> <br />... ...4....&....~...~..1~~. <br />i'" ; <br /> <br />..:,...!". ....."'!..... <br /> <br />.............~......~.... <br /> <br />o <br /> <br />20 <br /> <br />40 60 80 <br />HABITAT COUNTS (no I mile) <br /> <br />100 <br /> <br />120 <br /> <br />Figure 3.15. Regression of paired data sets comparing island count and total habitat <br />count average per RM for all non-canyon reaches of the San Juan River. <br />Data were derived from habitat mapping conducted by Bliesner and <br />Lamarra (2000). Habitat count was determined as the total number of <br />different habitats (versus different habitat types) within each RM. <br />R^2=0.63, p=0.001. <br /> <br />September 2000 <br /> <br />3-36 <br /> <br />Program Evaluation Report <br />