30 



John B. Calhoun 



Four plots consisted of concentric circular traplines, 75 feet between 

 circles, with one trap each 10 feet along the lines. Two plots consisted of 

 three lines, and two of four hues. The fifth plot is represented by the first 

 15 days' results of the Rich Lake Island study presented in more detail in 

 Section VI, B. All areas were sampled for at least 15 days (Fig. 11). Each 

 day all animals captured were removed. 



Note that whereas the catch of Clethrionomys initially declines through 



5 10 



DAY OF CAPTURE 



Fig. 11. Summated results from five continuous removal studies conducted by Dr. 

 Earl Patric and Dr. William Webb during 1952 and 1953 on the Huntington Forest, 

 New York. 



time, all other species exhibit an increase in catch per day for the first 4 

 or 5 days. 



D. Comparative Catches, Huntington Wildlife Forest, 1951 — Data Con- 

 tributed by William L. Webb 



Nine NACSM lines were each run for at least 24 days during September 

 of 1951 (Fig. 12). In contrast to the following two years, Peromyscus 

 nearly equaled Clethrionomys in abundance. Likewise, Blarina was abun- 



