vt 



■3 



N 



a. 



c 

 <• 



10 - 

 9 - 

 8 - 

 7 - 

 6 - 

 5 - 

 4 - 

 3 - 

 2 - 

 1 - 

 - 



P - 0.08, Kruskal-Walis 



n-69 



355 



26 



39 



S3 



32 



25 



57 



li 



^ 3 ~ 



JT S ^ ^ I I 



■5 



8 



<7i 



10 1 

 9 - 

 8 - 

 7 - 

 6 - 

 5 - 

 4 - 

 3 - 

 2 - 

 1 - 

 - 



P - 0.03, 

 Knjskal-WaHis 



Survey 



64* 



61 



n-24 



43 



65 



72* 



36 



79 

 T 58 



65 



>V> 52 



19 



8 9 10 11 12 13 14 15 16 17 18 19 

 Hour of Day 



Figure 12. Mean group sizes by survey (a) and hour (b), error bars indicate 1 

 SD. Group sizes from 1200-1259 were significantly higher than those at all 

 other times except 13 hr, group sizes from 1300-1359 were significantly 

 higher than those at 9-11, 14, 16, and 19 hr (Fishers LSD). 



58 



