COMMUNITY ANALYSIS 85 



and relations of the different sorts of animals 

 concerned and the compilation of habitat lists 

 with a brief discussion of the most obvious rela- 

 tionships, the results might appear as a prelimi- 

 nary survey of the University of Chicago. 



Translated into such a situation, many of the 

 limitations inherent in this method of studying 

 the organization of an animal community become 

 plainly evident. If the collections have been 

 frequent enough and have been made in the cold 

 weather as well as in summer, at night as well as 

 in the day, the lists will probably include all the 

 different types of individuals to be found .regu- 

 larly near or in the University together with a 

 sprinkling of regular or casual visitors from other 

 parts of Chicago, or indeed from other parts of the 

 world. 



The extent to which such lists would begin to 

 indicate the true organization of the community 

 would depend on the wisdom with which the 

 habitat niches were chosen for study and the 

 attention paid to the relative numbers of the 

 different sorts of animals collected and also upon 

 the general thoroughness of the survey. Even 

 such a preliminary study would show that the 

 community in question is dominated by white 

 men but the interrelations of the different sorts 

 of white men would probably not be apparent. 



