1985] 
Stuart — Leptothorax curvispinosus 
77 
Workers 
Fig. 2. The relationship between the occurrence of spontaneous polydomy and 
colony size, as indicated by plotting percent budding relative to the number of 
workers present. The number of colonies in each size category is indicated above each 
bar. The significance of this relationship is discussed in the text. 
It is possible that polygyny may influence the occurrence of 
polydomy. In this study only 6 colonies were polygynous when 
collected; and the 4 of these which budded were fairly large (see 
Table 1). However, this sample is too small for meaningful statisti- 
cal comparisons. By the time the experiment was initiated, many 
colonies had become at least superficially polygynous due to the 
