CHAPTER in 

 COMMUNITY ANALYSIS 



C 



OMMUNiTiES of land an- 

 imals are more complex than are those of the 

 waters. The facts concerning their organization 

 are not easily come by since man, the investigat- 

 ing animal in these cases, cannot readily appreciate 

 to the full the interplay of forces that operate to 

 organize non-human communities. With all of 

 the smaller animals the mere matter of difference 

 in size prevents us from being able to realize 

 completely the effects of relatively minor changes 

 in humidity or temperature; while our relations 

 with elephants, for example, prepares us some- 

 what to understand the effects of being exposed 

 to more powerful animals, we have only experi- 

 ences in inter-human relations upon which to 

 base judgment of the effect of being exposed to 

 animals of equal or of infinitely greater mental 

 ability. 



Perhaps we can best appreciate the difficulties 

 under which modern students of the organization 

 of animal communities have to work by attempt- 

 ing to see how much of the activities of a human 



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