J. The Social Use of Space 



33 



locality encompass a period of several years, and so should provide a 

 representative picture of relationships in the respective habitats. Results 

 in Table VI derive from 37,080 "trap-days" of effort. 



Drs. Earl F. Patric and William L. Webb provided the New York data 

 from the Huntington Wildlife Forest at Newcomb, New York. The majority 

 of the animals shown were taken in the years of high density, 1953-1954, 

 although the few taken during the low density years of 1955 and 1956 are 

 included. Dr. J. E. Aloore of the University of Alberta, Edmonton, pro- 



Table VI 

 Comparative Catch of Two Genera in Three Localities 



Genus Location Number 



of lines 



Day" 



Total, Mean 



3 days 1-3 per line 



New York 



Clethrionomys Alberta 



Maine 



90 586 470 380 



(0.408) (0.327) (0.265) 



1436 



36 117 103 83 303 



(0.390) (0.338) (0.272) 



SO 



90 



58 



36 



184 



(0.489) (0.315) (0.196) 



" Proportion of 3-day 2 shown in parentheses. 



16.0 



2.3 



vided the Alberta census including the years 1948-1956. Dr. John A. King 

 and two U. S. National Park Rangers, Clifford Senne and L. S. Winsor, 

 and the author conducted the ]\Iaine census on Alt. Desert Island between 

 1949 and 1952. 



Figure 14 shows the decline in catch from day 1 through day 3 for these 

 two genera for Maine and New York. 



In Maine where both genera have low densities, their respective patterns 

 of decline in catch through time are very similar. However, the relatively 

 greater catch of Clethrionomys on day 1 should be noted with reference to 



