Table 2.
Results of the statistical tests (see Methods section) for effects of the focal animal’s genotype, the interaction partner’s genotype and interactions between these factors.
| behavioural category | behaviour | day | WT/WT median (Q1; Q3) | WT/KO median (Q1; Q3) | KO/WT median (Q1; Q3) | KO/KO median (Q1; Q3) | focal animal’s genotype | partner animal’s genotype | interaction between focal and partner animals’ genotypes |
|---|---|---|---|---|---|---|---|---|---|
| social interest | approaching (#/hour) | 1 | 18.5 (12.7; 23.9) | 12.5 (10.1; 21.5) | 25.8 (19.7; 30;4) | 27.9 (11.3; 38.8) | p = 0.0098 | p = 0.6604 | p = 0.6816 |
| 5 | 12.6 (6.7; 20;5) | 9.4 (6.3; 10.6) | 11.6 (8; 22.1) | 16.5 (9.2; 22.2) | p = 0.0622 | p = 0.4302 | p = 0.4324 | ||
| body/facial sniffing (sec/hour) | 1 | 23.1 (6.7; 77.5) | 12.9 (6.8; 39.8) | 34.2 (8.8; 67.2) | 28.3 (11.1; 41;7) | p = 0.6332 | p = 0.6566 | p = 0.6306 | |
| 5 | 9.7 (4.1; 22.1) | 4.1 (2.1; 13.6) | 9.4 (2.8; 15.5) | 8.1 (5.1; 14.4) | p = 0.4510 | p = 0.3740 | p = 0.3650 | ||
| ano-genital sniffing (sec/hour) | 1 | 12.1 (4.8; 42.4) | 8.7 (2.4; 17.3) | 22.8 (14.3; 55.6) | 21.3 (8.8; 30.5) | p = 0.1324 | p = 0.0938 | p = 0.0872 | |
| 5 | 4.5 (3.2; 11.9) | 1.5 (0.4; 2.1) | 5.6 (2.4; 18.4) | 4 (1.5; 20.7) | p = 0.8694 | p = 0.2006 | p = 0.2162 | ||
| following (sec/hour) | 1 | 11.5 (1.9; 46) | 9.5 (1; 36.8) | 28.3 (20.3; 94) | 30.9 (9.1; 40.6) | p = 0.0790 | p = 0.1176 | p = 0.1058 | |
| 5 | 6.6 (0.2; 13.2) | 0.9 (0.1; 1.9) | 6.1 (2.4; 29) | 1.6 (1.2; 21.2) | p = 0.0558 | p = 0.1874 | p = 0.1832 | ||
| aggressive behaviour | chasing (sec/hour) | 1 | 0 (0; 0) | 0 (0; 0.1) | 2.9 (0; 13.7) | 0.8 (0; 12.8) | p = 0.0048 | p = 0.9760 | p = 0.9614 |
| 5 | 0 (0; 0) | 0 (0; 0) | 2.2 (0; 5.2) | 0.3 (0; 5.6) | p = 0.0014 | p = 0.6082 | p = 0.5940 | ||
| attacking (#/hour) | 1 | 0 (0; 0) | 0 (0; 0.1) | 0.3 (0; 2.9) | 1.3 (0; 4.1) | p = 0.0230 | p = 0.8714 | p = 0.8458 | |
| 5 | 0 (0; 0) | 0 (0; 0) | 0.9 (0; 1.2) | 0 (0; 2.2) | p = 0.0040 | p = 0.4412 | p = 0.4262 | ||
| escalated fighting (#/hour) | 1 | 0 (0; 0) | 0.6 (0; 1.8) | 0.6 (0; 1.5) | 4.6 (2.9; 11.6) | p < 0.0001 | p < 0.0001 | p < 0.0001 | |
| 5 | 0 (0; 0) | 0 (0; 0) | 0 (0; 0) | 0.6 (0.4; 1.7) | p < 0.0001 | p < 0.0001 | p < 0.0001 | ||
| defensive behaviour | avoiding (#/hour) | 1 | 0 (0; 0.6) | 2 (0.4; 4.6) | 0.3 (0; 0.7) | 3.1 (0.8; 13.1) | p = 0.2292 | p = 0.0006 | p < 0.0001 |
| 5 | 0 (0; 0.8) | 1.1 (0; 2.1) | 0.6 (0; 0.8) | 1.5 (0; 4.6) | p = 0.2418 | p = 0.0110 | p = 0.0086 | ||
| fleeing (sec/hour) | 1 | 0 (0; 0) | 6.7 (0; 26.2) | 0 (0; 0) | 24.4 (2.5; 38.2) | p = 0.3852 | p = 0.0004 | p = 0.0002 | |
| 5 | 0 (0; 0) | 1.3 (0; 3.4) | 0 (0; 0.4) | 3 (0; 14.3) | p = 0.1154 | p = 0.0010 | p = 0.0004 | ||
| other | mounting (sec/hour) | 1 | 0 (0; 0) | 0 (0; 0.6) | 0.4 (0; 0.69) | 0.4 (0; 30.5) | p = 0.0776 | p = 0.2974 | p = 0.3020 |
| 5 | 0 (0; 0.5) | 0 (0; 0) | 0 (0; 0) | 0 (0; 0) | p = 0.2126 | p = 0.2206 | p = 0.2042 |
Q1 = 1. quartile, Q3 = 3. quartile; bold numbers indicate p-values below 0.05.