Number 86 June 24, 1930 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan Published by the University 



THE MAMMALS OF WARREN WOODS, 

 BERRIEN COUNTY, MICHIGAN 



By Lee Raymond Dice 



Few detailed studies of the mammal associations of the forests 

 of the United States have been made. But if we are ever to 

 know, for our different species of mammals, the natural environ- 

 ments under which their evolution and differentiation occurred, 

 we must study and describe their habitats and habitat limita- 

 tions before all the native areas in the country have been altered 

 by the activities of mankind. As a contribution to this subject 

 the following paper is presented. 



The Warren Woods are a state preserve under the Edward K. 

 Warren Foundation. They are located in Berrien County, Michi- 

 gan, about three miles north of Three Oaks. The preserve con- 

 sists of about two hundred acres, of which somewhat less than 

 half is in clearing and the remainder mostly covered by forest, 

 much of it still nearly in its primitive condition. 



The topography is nearly level, though the area is cut by a 

 number of ravines draining to the Galien River, which flows 



