Table 1.

Results of permutational MANOVA tests for the effects of group size, network density, captive/natural status, taxonomic classification and interaction rates of alpha individuals (Iα) on variations in significance profiles. p-values shown are Bonferroni-corrected values. In the ‘pseudo-replication test’, we used a resampling procedure to randomly choose one group for each species and then conducted the permutational MANOVA test on this reduced dataset. This procedure was repeated 100 times, and the means ± standard errors are shown for all values. In all cases, the analysis excludes groups for which all dyadic pairs have interacted (see Methods). For these tests, the median values are shown, and 95% confidence intervals are reported in parentheses.

nFpartial R2p
complete dataset
 group size1382.460.020.07
 network density13816.960.10<0.001
 captive/natural1381.210.010.32
 taxonomy1380.900.060.62
Iα1389.330.06<0.001
pseudo-replication test: mean ± s.e.
 group size67.5 ± 0.142.03 ± 0.070.03 ± 0.0010.16 ± 0.01
 network density67.5 ± 0.148.9 ± 0.240.11 ± 0.0030.001 ± 0.00
 captive/natural67.5 ± 0.141.88 ± 0.090.02 ± 0.0010.21 ± 0.02
 taxonomy67.5 ± 0.140.93 ± 0.020.12 ± 0.0020.58 ± 0.02
Iα67.5 ± 0.144.35 ± 0.140.05 ± 0.0020.02 ± 0.00