Table 4 

Temporal SRI trajectories for the core individuals. 

Trajectory type 
Peak season(s) 
Number of dyads (percent) 
Number of individuals (percent) 


A 
N/A 
6 (1.3) 
9 (17.6) 
B1 
D2 
108 (22.6) 
39 (76.5) 
B2 
D1 
99 (20.7) 
39 (76.5) 
B3 
T1 
85 (17.8) 
43 (84.3) 
B4 
W2 
71 (14.9) 
43 (84.3) 
B5 
W1 
70 (14.6) 
44 (86.3) 
C 
D1 and D2 
39 (8.2) 
32 (62.7) 


The total number of potential dyads is 1275, of which 478 (37.5%) had a nonzero SRI value in at least one season. 'Trajectory type' denotes the Kmeans curve type that best describes the SRI trajectory of the dyad (see Methods), with corresponding plots shown in Figure 1. 'Peak season' refers to the time period in which association strength is greatest. 'Number of dyads' shows the number of dyads whose SRI trajectory has the respective type (percentages are calculated with respect to 478 dyads with at least one nonzero SRI). 'Number of individuals' indicates the number of individuals forming the respective dyads (percentages are calculated with respect to 51 core individuals). 

de Silva et al. BMC Ecology 2011 11:17 doi:10.1186/147267851117 