28 



John B. Calhoun 



30-DAY 

 TOTAL 

 • • Clefhrionomys 97 



m- ■ Sorex 



10 16 20 25 



DAY OF TRAPPING 



Fig. 9. Daily removal captures of the two most abundant species inhabiting a 30- 

 acre island; recorded by Dr. William L. Webb. 



Table IV 



Comparison of Results between Short-Term and Long-Term Removal 

 Trapping on the Huntington Forest during 1952 



Genus 



Location 



Clethrionomys Sorex Perornyscus 



80-Day total for continuous removal 617 

 trapping on a 30-acre mainland area 

 (see Section XI) 



1225 



77 



34 NACSM lines each for 3 days on main- 753 (22 . 1 ) « 

 land 



17 (0.5) 38 (1.1) 



Mean 3-day totals shown in parentheses. 



