104 Troy A. Ladine and Angela Ladine 



Significant differences among the selected scales were found for 

 STEMS<5, STEMS5-10, STEMS>15, LOGS<5, LOGS5-10, and LOGS10-15 

 (Table 2). Except for LOGS<5, the 1-m 2 and 5-m 2 , scales did not differ signifi- 

 cantly for selected variables. The 10-m 2 scale was significantly different from 

 both the 1-m 2 and 5-m 2 scales for all variables exhibiting significant differences 

 between the three scales. 



No significant difference was observed between capture and no-capture 

 sites for selected habitat variables at the 1-m 2 scale (Table 3). Except for 

 STEMS 10- 15, no significant difference was found between capture and no-cap- 

 ture sites for selected habitat variables at the 5-m 2 scale (Table 4). At the 10-m 2 

 scale, a significant difference was found between capture and no-capture sites for 

 LOGS10-15 (Table 5). 



Sites with no captures tended to be centered in the cluster of sites on 

 graphs of principal components for all scales. Outliers from sites where no cap- 

 tures occurred were only observed at the 1-m 2 spatial scale. Percent variation 

 accounted for by the first three principal components for each scale was 42.0% 

 at 1 m 2 , 39.5% at 5 m 2 , and 45.3% at 10 m 2 . Variables loading on each of the 

 first three principal components varied for each scale. For the 1-m 2 scale, all 



Table 3. Selected habitat variables (x ± SD) and Kruskal-Wallis test (% 2 approx- 

 imation and probability values) for differences between sites where Peromyscus 

 leucopus were captured and randomly selected sites where no captures occurred 

 for the 1-m 2 scale. (See Table 1 for description of habitat variables. See text for 

 explanation of capture and no-capture sites.) 



Habitat variable 



Capture 



No-Capture 



t 



P 



COVER0 



2.50 ± 4.84 



2.29 ± 



3.68 



0.02 



0.8841 



COVER 1 



0.13 ± 0.73 



0.29 ± 



1.19 



0.36 



0.5507 



COVER3 



0.07 ± 0.37 



0.74 ± 



3.51 



0.36 



0.5507 



STEMS0-5 



4.63 ± 5.33 



4.59 ± 



5.57 



0.46 



0.4995 



STEMS5-10 



0.03 ± 0.18 



0.09 ± 



0.29 



0.99 



0.3210 



STEMS 10- 15 



0.13 ± 0.35 



0.03 ± 



0.17 



2.04 



0.1536 



STEMS>15 



0.03± 0.18 



0.06 ± 



0.24 



0.31 



0.5766 



LOGS0-5 



8.13 ± 8.49 



5.32 ± 



6.51 



2.06 



0.1512 



LOGS5-10 



0.17 ± 0.46 



0.29 ± 



0.52 



2.04 



0.1532 



LOGS 10- 15 



0.13 ± 0.51 



0.03 ± 



0.17 



0.43 



0.5128 



LOGS>15 



0.13 ± 0.35 



0.03 ± 



0.17 



2.04 



0.1536 



LITTER 



49.22 ± 13.52 



44.45 ± 



11.28 



2.10 



0.1471 



