Table 3.
Impact of group composition on the vocal cross-correlation.
| CrossCorr~GroupType*Sex1Sex2+Dist+Dist:GroupType+Dist:Sex1Sex2+(1|GroupID)+(1|Bird1ID)+(1|Bird2ID)+(1|Day)+(1|StartTime) | ||||||
|---|---|---|---|---|---|---|
| Nobs = 486, N2Juv2Ad = 348, N4YAd = 138, NFF = 205, NMF = 223, NMM = 43, NDist1 = 405, NDist2 = 81 | ||||||
| Random Effects | ||||||
| Groups name | Variance | Std. Dev. | ||||
| GroupID (intercept) | 1.084e-03 | 0.0329 | ||||
| Bird1ID (intercept) | 2.285e-04 | 0.0151 | ||||
| Bird2ID (intercept) | 1.695e-04 | 0.0130 | ||||
| Day (intercept) | 2.507e-05 | 0.0050 | ||||
| StartTime (intercept) | 8.521e-05 | 0.0092 | ||||
| Residual | 2.378e-03 | 0.0487 | ||||
| Fixed Effects | ||||||
| Estimate | Std. Error | df | t-value | p-value | ||
| (Intercept) | 0.0906 | 0.0107 | 12.9 | 8.440 | <0.0001 | |
| GroupType-4YAd | 0.0570 | 0.0180 | 93 | 3.156 | 0.0021 | |
| Sex-MF | −0.0152 | 0.0079 | 300.9 | −1.902 | 0.0581 | |
| Sex-MM | 0.0067 | 0.0177 | 282.6 | 0.382 | 0.7024 | |
| Dist-2 | 0.0252 | 0.0099 | 375.2 | 2.530 | 0.0118 | |
| GroupType-4YAd: Sex-MF | −0.0052 | 0.0148 | 417.8 | −0.354 | 0.7233 | |
| GroupType-4YAd: Sex-MM | −0.0701 | 0.0228 | 394.6 | −3.072 | 0.0022 | |
| GroupType-4YAd: Dist-2 | −0.0260 | 0.0168 | 386.1 | −1.549 | 0.1222 | |
| Sex-MF: Dist-2 | 0.0221 | 0.0159 | 388 | 1.391 | 0.1650 | |
| Sex-MM: Dist-2 | 0.0316 | 0.0271 | 363.9 | 1.164 | 0.2453 | |
| CrossCorr4YAd~Sex1Sex2*Dist+(1|GroupID)+(1|Bird1ID)+(1|Bird2ID) +(1|Day) | ||||||
| Nobs = 138, NFF = 21, NMF = 90, NMM = 27, NDist1 = 115, NDist2 = 23 | ||||||
| Random Effects | ||||||
| Groups name | Variance | Std. Dev. | ||||
| GroupID (intercept) | 0.0032 | 0.0572 | ||||
| Bird1ID (intercept) | 0.0006 | 0.0258 | ||||
| Bird2ID (intercept) | 0.0004 | 0.0208 | ||||
| Day (intercept) | 0.0005 | 0.0240 | ||||
| StartTime (intercept) | 0.0007 | 0.0267 | ||||
| Residual | 0.0017 | 0.0416 | ||||
| Fixed Effects | ||||||
| Estimate | Std. Error | df | t-value | p-value | ||
| (Intercept) | 0.1422 | 0.0330 | 4.03 | 4.304 | 0.0124 | |
| Sex-MF | −0.0204 | 0.0124 | 103.83 | −1.649 | 0.1021 | |
| Sex-MM | −0.0639 | 0.0177 | 60.19 | −3.601 | 0.0006 | |
| Dist-2 | 0.0589 | 0.0425 | 29.4 | 1.384 | 0.1767 | |
| Sex-MF: Dist-2 | −0.0422 | 0.0450 | 34.51 | −0.937 | 0.3553 | |
| Pairwise Comparisons (Tukey Adjustment) | ||||||
| Contrast | Estimate | SE | z-value | p-value | ||
| Sex-MF-Sex-FF = = 0 | −0.0204 | 0.0124 | −1.649 | 0.2117 | ||
| Sex-MM-Sex-FF = = 0 | −0.0639 | 0.0177 | −3.601 | <0.0001 | ||
| Sex-MM-Sex-MF = = 0 | −0.0434 | 0.0122 | −3.560 | 0.0011 | ||
| CrossCorr2Juv2Ad~JuvAd+Dist+SexRatio+JuvAd:Dist+JuvAd:SexRatio+(1|GroupID)+ (1|Bird1ID)+(1|Bird2ID)+(1|StartTime) | ||||||
| Nobs = 348, NAdAd = 58, NJuvAd = 232, NJuvJuv = 58, NDist1 = 290, NDist2 = 58, N2F2M = 96, N3F1M = 138, N4F0M = 84 | ||||||
| Random Effects | ||||||
| Groups name | Variance | Std. Dev. | ||||
| GroupID (intercept) | 6.924e-04 | 0.0263 | ||||
| Bird1ID (intercept) | 8.076e-05 | 0.0089 | ||||
| Bird2ID (intercept) | 1.685e-04 | 0.0129 | ||||
| StartTime (intercept) | 8.826e-05 | 0.0093 | ||||
| Residual | 2.304e-03 | 0.0480 | ||||
| Fixed Effects | ||||||
| Estimate | Std. Error | df | t-value | p-value | ||
| (Intercept) | 1.193e-01 | 1.814e-02 | 52.77 | 6.577 | <0.0001 | |
| JuvAd-JuvAd | −3.949e-02 | 1.507e-02 | 271.2 | −2.620 | 0.0092 | |
| JuvAd-JuvJuv | −1.844e-02 | 2.004e-02 | 150.8 | −0.920 | 0.3590 | |
| Dist-2 | 8.799e-03 | 2.123e-02 | 270.8 | 0.414 | 0.6788 | |
| SexRatio-3F1M | 2.976e-02 | 2.035e-02 | 98.93 | 1.463 | 0.1467 | |
| SexRatio-4F0M | −2.933e-03 | 2.312e-02 | 91.45 | −0.127 | 0.8993 | |
| JuvAd-JuvAd: Dist-2 | 3.538e-02 | 2.348e-02 | 273.4 | 1.507 | 0.1330 | |
| JuvAd-JuvJuv: Dist-2 | 3.147e-02 | 2.762e-02 | 278.4 | 1.139 | 0.2555 | |
| JuvAd-JuvAd: SexRatio-3F1M | −2.190e-02 | 1.844e-02 | 260.1 | −1.188 | 0.2360 | |
| JuvAd-JuvJuv: SexRatio-3F1M | −4.473e-02 | 2.375e-02 | 247.4 | −1.883 | 0.0608 | |
| JuvAd-JuvAd: SexRatio-4F0M | 4.872e-04 | 2.052e-02 | 257.9 | 0.024 | 0.9810 | |
| JuvAd-JuvJuv: SexRatio-4F0M | −1.620e-02 | 2.651e-02 | 259.0 | −0.611 | 0.5417 | |
| Pairwise Comparisons (Tukey Adjustment) | ||||||
| Contrast | Estimate | SE | z-value | p-value | ||
| JuvAd-AdAd = = 0 | −0.0394 | 0.0150 | −2.620 | 0.0229 | ||
| JuvJuv-AdAd = = 0 | −0.0184 | 0.0200 | −0.920 | 0.6197 | ||
| JuvJuv-JuvAd = = 0 | 0.0210 | 0.0152 | 1.385 | 0.3405 | ||
| CrossCorrMM~GroupType+(1|Day) | ||||||
| Nobs = 48, N2Juv2Ad = 16, N4YAd = 27 | ||||||
| Random Effects | ||||||
| Groups name | Variance | Std. Dev. | ||||
| Day (intercept) | 0.00 | 0.00 | ||||
| Residual | 0.0022 | 0.0470 | ||||
| Fixed Effects | ||||||
| Estimate | Std. Error | df | t-value | p-value | ||
| (Intercept) | 0.1009 | 0.0117 | 37 | 8.58 | <0.0001 | |
| GroupType-4YAd | −0.0148 | 0.0153 | 37 | −0.967 | 0.34 | |
| Fixed Effects | ||||||
| Estimate | Std. Error | df | t-value | p-value | ||
| (Intercept) | 0.0939 | 0.0130 | 95 | 7.196 | <0.0001 | |
| GroupType-4YAd | 0.0409 | 0.0149 | 95 | 2.740 | 0.0073 | |
| CrossCorrFF~GroupType+(1|Day) | ||||||
| Nobs = 40, N2Juv2Ad = 14, N4YAd = 21 | ||||||
| Random Effects | ||||||
| Groups name | Variance | Std. Dev. | ||||
| Day (intercept) | 0.00 | 0.00 | ||||
| Residual | 0.0073 | 0.0856 | ||||
| Fixed Effects | ||||||
| Estimate | Std. Error | df | t-value | p-value | ||
| (Intercept) | 0.0917 | 0.0229 | 29 | 4.005 | 3.95e-04 | |
| GroupType-4YAd | 0.0586 | 0.0309 | 29 | 1.895 | 0.0680 | |
Model statistical results are shown. Linear mixed effect models (“lmer” function from “lme4” R package) were built. Number of observations in the dataset for each fixed effect is given. We present the results from the R “summary” function.