Table 5.
Responsiveness of current breeders with dependent and independent infants and noncurrent breeders (no infants) across the odour stimulus tests
| Dependent infants | Independent infants | No infants | |||||||
|---|---|---|---|---|---|---|---|---|---|
| P< | η 2 | Post hoc qT>3.633 | P< | η 2 | Post hoc qT>3.633 | P< | η 2 | Post hoc qT>3.14 | |
| Latency to orient to stimulus | 0.01 | 0.452 | C>CO,UO | 0.23 | 0.085 | -- | 0.01 | 0.428 | C>CO,UO |
| Latency to explore stimulus | 0.96 | 0.020 | -- | 0.58 | 0.167 | -- | 0.14 | 0.159 | -- |
| Latency to enter stimulus nestbox* | -- | -- | -- | 0.58 | 0.167 | -- | 0.08 | 0.102 | -- |
| Frequency of investigatory behaviour | 0.18 | 0.223 | -- | 0.38 | 0.286 | -- | 0.18 | 0.424 | -- |
| Time spent near stimulus | 0.29 | 0.091 | -- | 0.63 | 0.104 | -- | 0.96 | 0.091 | -- |
Stimuli were control (C), control odour (CO), own infant odour (OO) and unfamiliar infant odour (UO). We used Friedman's ANOVA by ranks (k=4) for current breeders with dependent infants and independent infants; (k=3) for noncurrent breeders; Tukey's test for nonparametric multiple comparisons determined between which tests differences occurred. Significant post hoc test comparisons are shown. Effect size measure η2 is reported. Significant P values are shown in bold.
*
When the behaviour did not occur in any of the stimulus tests the statistical comparison was not performed.