1983] 
Herbers — Social Organization in Leptothorax 365 
o 
La-A 
e« .9942 
Lq-B 
e».9974 
Lo-C 
e«.9980 
TOTAL 
e>9986 
NO. OF ACTS 
(OCTAVE) 
Figure 1 . Abundance histograms for three colonies of L anihiguus and for pooled 
data. The abscissa gives the number of observations per behavior, to the base 2; thus 
octave 0 indicates behaviors observed once, octave 1 refers to exactly 2 observations, 
octave 2: 3 or 4 observations, octave 3: 5 through 8, and so on. The largest octave, 10 
refers to behaviors observed 513-1024 times. The value of 6 given for each data set in- 
dicates the sample coverage, as described by Fagen and Goldman (1977). 
