1. The Social Use of Space 



C. Constellation Formation — An Intraspecific Phenomenon 



57 



After the removal of 64% of the resident population of socially dominant 

 species, whose home ranges are sufficiently large to give them a higher 

 probability of encountering traps, there arises a secondary input. These 

 latter individuals must have enlarged their home ranges as a response to 

 the absence of their former associates. It follows that certain individuals 



15 

 DAY 



20 



Fig. 25. Removal capture.s of socially dominant species. Same data as in Fig. 24, 

 but here shown as an accumulated total. 



have the ability to restrict the home ranges of other members of their own 

 species. At this point in my analysis I began to wonder whether there were 

 circumstances relating to the spatial distribution of the population which 

 might lead to a 64:36 ratio of larger : smaller home ranges. 



In the previous discussion we have seen that one possible spatial equilib- 

 rium is that in which home range centers become uniformly distributed 

 with an inter-home range center interval of about 2.0 sigma. It was further 

 pointed out that the mechanics of moving through space are such as to 

 favor the evolution of a signal emitted by one individual which has the 



