1. The Social Use of Space 



40 



31 



iCIethrionomys 



DAY OF CAPTURE 



Fig. 12. A continuous removal study conducted by Dr. William L. Webb on the 

 Huntington Forest in 1951. This year represented a time when the dominance relation- 

 ship of the three most abundant species was not yet clarified, the small mammal com- 

 munity was in a state of social flux. See Table V. Points shown are 3-point moving 

 averages. 



dant. Only Sorex was rare. The relative likelihood of capture during the 

 initial and terminal days of trapping forms a most interesting series (Table 

 V) . Initial and terminal likelihood of capture are inversely related despite 

 the fact that usually over 50% of each genus were taken during the middle 

 period of trapping. 



Table V 

 Huntington Forest (1951) 24-Day Continuous Removal Trapping 



Genus 



24-Day total 



Proportion of 24-day total during 



First 5 day.s 



Last 5 days 



Peromysctis 

 Clethrionomys 

 Blarina 

 Sorex 



217 



267 



229 



41 



0.418 

 0.311 

 0.188 

 0.024 



0.042 

 0.079 

 0.166 

 0.585 



E. Comparative Catches in Maine (1950) and Maryland (1953) 



Eight NACSM lines within an 80-acre tract of a much more extensive 

 continuous forest opposite the Hamilton Station of the Jackson Memorial 



