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. 2024 May 21;12:39. doi: 10.1186/s40462-024-00478-6
Study category No. studies (k) Total sample size (n) No. probability estimates Equality of proportions Effect size Heterogeneity
Sig. Not Sig. X2 P r¯ Zr¯± SE τ2 I2 (%) H2 Q
All groups
97 68390 72 25 – 0.017 – 0.022 ± 0.047 0.12 68.72 3.20 276a
Taxonomic Group: 1.920 0.75 0.11 65.16 2.87 247a
Birds 25 8359 16 9 – 0.039 – 0.051 ± 0.071
Fishes 8 31150 6 2 0.043 0.042 ± 0.050
Herpetofauna 10 2618 8 2 – 0.260 – 0.326 ± 0.170
Invertebrates 28 10815 22 6 0.141 0.166 ± 0.104
Mammals 26 15448 20 6 – 0.089 – 0.101 ± 0.086
Sex: 2.560 0.28 0.12 68.24 3.15 267a
Males 20 14814 14 6 – 0.030 0.041 ± 0.117
Females 23 25264 20 3 – 0.114 – 0.128 ± 0.100
Males + Females 54 28312 38 16 0.030 0.029 ± 0.060
Age: 3.260 0.07 0.12 69.06 3.23 275a
Adults 63 59124 37 14 0.004 0.002 ± 0.065
Juveniles 34 9266 15 15 – 0.055 – 0.068 ± 0.062
Migratory Behavior: 0.008 0.93 0.11 66.23 2.96 262a
Migratory 40 22833 29 11 – 0.143 – 0.171 ± 0.065
Non-migratory 57 45557 43 14 0.072 0.082 ± 0.063
Study Design: 0.063 0.801 0.12 68.22 3.15 274a
Natural 62 30113 45 17 – 0.091 – 0.106 ± 0.063
Manipulated 35 38277 27 8 0.115 0.126 ± 0.062
Density Metric: 2.609 0.271 0.10 63.72 2.76 247a
Breeding 22 7859 19 3 – 0.226 – 0.271 ± 0.093
Natal 30 6197 20 10 0.019 0.016 ± 0.071
Population 45 54334 33 12 0.062 0.074 ± 0.074
Density Variable: 1.331 0.249 0.12 68.76 3.2 271a
Discrete 71 20486 50 21 0.014 0.008 ± 0.055
Continuous 26 47904 22 4 – 0.100 – 0.107 ± 0.094
Dispersal Metric: 1.979 0.372 0.12 69.17 3.24 274a
Distance 41 19433 28 13 – 0.004 – 0.002 ± 0.062
Propensity 36 43539 27 9 – 0.019 – 0.021 ± 0.070
Rate 20 5418 17 3 – 0.038 – 0.068 ± 0.148
Temporal Scale: 3.218 0.200 0.11 67.23 3.05 261a
Inter-annual 34 20033 28 6 0.036 0.048 ± 0.090
Intra-annual 51 44807 34 17 – 0.103 – 0.130 ± 0.057
Per trial 12 3550 10 2 0.204 0.232 ± 0.120
Spatial Scale: 0.755 0.385 0.12 60.95 3.22 276a
Between patches 48 55798 38 10 – 0.004 0.005 ± 0.070
Out of patch 49 12592 34 15 – 0.029 – 0.040 ± 0.064
Birds
25 8359 16 9 – 0.039 – 0.051 ± 0.071 0.02 23.36 1.30 30
Sex: 0.35 0.838 0.03 28.99 1.41 30
Males 7 2442 5 2 – 0.103 – 0.128 ± 0.162
Females 6 1038 4 2 – 0.081 – 0.085 ± 0.127
Males + Females 12 4879 7 5 0.020 0.010 ± 0.100
Age: < 0.001 1 0.03 26.58 1.36 30
Adults 12 5625 8 4 0.012 0.004 ± 0.096
Juveniles 13 2734 8 5 – 0.086 – 0.102 ± 0.105
Migratory Behavior: 0.01 0.932 0.01 8.19 1.09 21
Migratory 15 5081 9 6 – 0.183 – 0.208 ± 0.091
Non-migratory 10 3278 7 3 0.177 0.183 ± 0.064
Study Design: < 0.001 1 0.03 26.27 1.36 30
Natural 22 8111 14 8 – 0.061 – 0.076 ± 0.075
Manipulated 3 248 2 1 0.124 0.130 ± 0.202
Density Metric: 0.70 0.704 0.01 13.44 1.16 25
Breeding 11 5083 8 3 – 0.107 – 0.118 ± 0.097
Natal 12 2038 4 5 – 0.014 – 0.031 ± 0.116
Population 2 1238 1 1 0.184 0.190 ± 0.142
Density Variable: 0.098 0.755 0.02 25.00 1.33 27
Discrete 20 7424 12 8 0.049 0.047 ± 0.067
Continuous 5 935 4 1 – 0.392 – 0.443 ± 0.135
Dispersal Metric: 5.54 0.060 0.02 22.09 1.28 26
Distance 19 6549 14 5 – 0.110 – 0.28 ± 0.085
Propensity 5 1726 1 4 0.160 0.162 ± 0.046
Rate 1 84 1 0 0.320 0.332
Temporal Scale: < 0.001 1 0.02 25.38 1.34 30
Inter-annual 18 7976 12 6 0.013 0.009 ± 0.070
Intra-annual 7 383 4 3 – 0.173 0.207 ± 0.174
Per trial 0 0 0 0
Spatial Scale: 0.31 0.580 0.03 28.25 1.39 30
Between patches 17 6902 12 5 0.045 0.042 ± 0.074
Out of patch 8 1457 4 4 – 0.218 – 0.250 ± 0.136
Fishes
8 31150 6 2 0.043 0.042 ± 0.050 0.02 40.99 1.69 11
Sex: 2.67 0.264 0.01 23.98 1.32 5
Males 2 8738 2 0 0.021 0.021 ± 0.048
Females 2 20106 2 0 – 0.068 – 0.071 ± 0.204
Males + Females 4 2306 2 2 0.108 0.109 ± 0.023
Age: < 0.001 1 0.01 18.23 1.22 4
Adults 2 26342 2 0 – 0.148 – 0.151 ± 0.124
Juveniles 6 4808 4 2 0.106 0.106 ± 0.017
Migratory Behavior: 0.67 0.414 0.01 34.11 1.52 8
Migratory 4 2306 2 2 0.108 0.109 ± 0.023
Non-migratory 4 28844 4 0 – 0.024 – 0.025 ± 0.090
Study Design:
Natural 0 0 0 0
Manipulated 8 311150 6 2 0.043 0.042 ± 0.040
Density Metric: < 0.001 1 0.01 39.18 1.64 9
Breeding 0 0 0 0
Natal 2 1474 2 0 0.137 0.138 ± 0.028
Population 6 29675 4 2 0.011 0.010 ± 0.061
Density Variable: 0.667 0.414 0.01 34.11 1.52 8
Discrete 4 2306 2 2 − 0.108 − 0.109 ± 0.023
Continuous 4 28844 4 0 − 0.024 − 0.025 ± 0.090
Dispersal Metric: 5.333 0.0695 0.02 45.40 1.83 9
Distance 1 286 0 1 0.109 0.109
Propensity 5 29135 5 0 0.014 0.013 ± 0.079
Rate 2 1729 1 1 0.081 0.081 ± 0.030
Temporal Scale: < 0.001 1 0.02 43.04 1.76 10
Inter-annual 1 1183 1 0 0.110 0.110
Intra-annual 7 29967 5 2 0.033 0.032 ± 0.056
Per trial 0 0 0 0
Spatial Scale: 0.667 0.414 0.01 34.11 1.52 8
Between patches 4 28844 4 0 − 0.024 − 0.025 ± 0.090
Out of patch 4 2306 2 2 0.108 0.109 ± 0.234
Herpetofauna
10 2618 8 2 − 0.260 − 0.326 ± 0.170 0.20 73.24 3.74 34a
Sex: 3.750 0.153 0.07 45.11 1.82 13
Males 3 504 3 0 − 0.554 − 0.706 ± 0.276
Females 3 485 3 0 − 0.489 − 0.578 ± 0.212
Males + Females 4 1629 2 2 0.132 0.148 ± 0.173
Age: 0.039 0.843 0.20 73.66 3.80 31b
Adults 8 2425 7 1 − 0.321 − 0.403 ± 0.203
Juveniles 2 193 1 1 − 0.016 − 0.016 ± 0.184
Migratory Behavior: 0.625 0.429 0.09 53.89 2.17 17
Migratory 5 849 5 0 − 0.517 − 0.660 ± 0.223
Non-migratory 5 1769 3 2 − 0.003 0.009 ± 0.157
Study Design: < 0.001 1 0.01 62.96 2.70 24
Natural 7 2354 6 1 − 0.446 − 0.549 ± 0.163
Manipulated 3 264 2 1 0.173 0.195 ± 0.236
Density Metric: 3.750 0.153 0.07 46.16 1.86 13
Breeding 6 989 6 0 − 0.522 − 0.642 ± 0.158
Natal 2 193 1 1 − 0.016 − 0.016 ± 0.184
Population 2 1436 1 1 0.279 0.313
Density Variable: 0.625 0.429 0.22 71.30 3.48 28a
Discrete 9 1253 8 1 0.009 0.009
Continuous 1 1365 0 1 − 0.290 − 0.363 ± 0.186
Dispersal Metric: 3.213 0.070 0.02 65.10 2.87 12a
Distance 1 1365 0 1 0.009 0.009
Propensity 4 474 3 1 − 0.102 − 0.104 ± 0.090
Rate 5 779 5 0 − 0.440 − 0.571 ± 0.309
Temporal Scale: 1.071 0.585 0.15 68.04 3.13 23a
Inter-annual 2 240 2 0 − 0.606 − 0.706 ± 0.076
Intra-annual 7 2307 5 2 − 0.277 − 0.352 ± 0.184
Per trial 1 71 1 0 0.549 0.617
Spatial Scale: < 0.001 1 0.14 64.24 2.8 21a
Between patches 6 831 5 1 − 0.400 0.509 ± 0.259
Out of patch 4 1787 3 1 − 0.051 − 0.052 ± 0.087
Invertebrates
28 10815 22 6 0.141 0.166 ± 0.104 0.23 78.9 5.74 130a
Sex: 3.893 0.143 0.24 79.36 4.82 122a
Males 4 494 2 2 0.384 0.478 ± 0.248
Females 7 1522 7 0 0.144 0.185 ± 0.211
Males + Females 17 8799 13 4 0.082 0.085 ± 0.137
Age: < 0.001 1 0.23 78.59 4.67 124a
Adults 27 10635 21 6 0.163 0.191 ± 0.105
Juveniles 1 180 1 0 − 0.470 − 0.510
Migratory Behavior: 0.318 0.573 0.21 76.34 4.23 108a
Migratory 9 5489 6 3 − 0.083 − 0.105 ± 0.130
Non-migratory 19 5326 16 3 0.246 0.295 ± 0.133
Study Design: 0.520 0.470 0.24 79.48 4.87 128a
Natural 11 5442 8 3 0.073 0.109 ± 0.210
Manipulated 17 5373 14 4 0.184 0.203 ± 0.111
Density Metric: 1.768 0.413 0.22 78.04 4.55 116a
Breeding 5 1787 5 0 − 0.133 − 0.164 ± 0.231
Natal 3 320 2 1 0.198 0.202 ± 0.056
Population 20 8708 15 5 0.200 0.243 ± 0.131
Density Variable: 0.048 0.827 0.24 79.02 4.77 124a
Discrete 20 5712 15 5 0.186 0.215 ± 0.108
Continuous 8 5103 7 1 0.026 0.044 ± 0.254
Dispersal Metric: 0.28 0.868 0.20 75.25 4.04 95a
Distance 6 2424 2 1 0.244 0.276 ± 0.141
Propensity 16 6757 12 4 − 0.022 − 0.023 ± 0.150
Rate 6 1634 5 1 0.470 0.561 ± 0.148
Temporal Scale: 1.075 0.584 0.10 60.00 2.50 60a
Inter-annual 3 1899 3 0 0.772 1.03 ± 0.042
Intra-annual 15 5788 11 4 − 0.035 − 0.057 ± 0.132
Per trial 5 3128 8 2 0.215 0.241 ± 0.130
Spatial Scale: 0.179 0.673 0.23 78.18 4.58 121a
Between patches 9 5936 8 1 0.238 0.293 ± 0.239
Out of patch 19 4879 14 5 0.094 0.106 ± 0.107
Mammals
26 15448 20 6 − 0.089 − 0.101 ± 0.086 0.03 34.90 1.54 42a
Sex: 1.942 0.379 0.05 44.95 1.82 42a
Males 4 2636 2 2 0.049 0.060 ± 0.173
Females 5 2113 4 1 − 0.308 − 0.369 ± 0.198
Males + Females 17 10699 14 3 − 0.057 − 0.060 ± 0.109
Age: 2.612 0.11 0.37 39.53 1.65 42a
Adults 14 14097 13 1 − 0.101 − 0.111 ± 0.122
Juveniles 12 1351 7 5 − 0.074 − 0.090 ± 0.127
Migratory behavior 1.370 0.242 0.04 38.16 1.62 41a
Migratory 7 9108 7 0 − 0.010 0.013 ± 0.145
Non-migratory 19 6340 13 6 − 0.118 − 0.143 ± 0.106
Study Design: < 0.001 1 0.04 40.28 1.67 42a
Natural 22 14206 17 5 − 0.089 − 0.103 ± 0.101
Manipulated 4 1242 3 1 − 0.087 − 0.090 ± 0.106
Density Metric: < 0.001 1
Breeding 0 0 0 0 0.03 33.61 1.51 40a
Natal 11 2172 8 3 − 0.008 − 0.001 ± 0.148
Population 15 13736 12 3 − 0.148 − 0.175 ± 0.103
Density Variable: 0.122 0.727 0.04 40.36 1.68 42a
Discrete 18 3791 13 5 − 0.086 − 0.100 ± 0.114
Continuous 8 11657 7 1 − 0.095 − 0.103 ± 0.125
Dispersal Metric: 3.198 0.202 0.04 38.39 1.62 39a
Distance 14 8809 9 5 0.026 0.042 ± 0.116
Propensity 6 5447 6 0 − 0.136 − 0.142 ± 0.098
Rate 6 1192 5 1 − 0.309 − 0.394 ± 0.208
Temporal Scale: 5.720 0.057 0.04 42.10 1.73 41a
Inter-annual 10 8735 10 0 − 0.024 0.031 ± 0.198
Intra-annual 15 6362 9 6 − 0.122 − 0.138 ± 0.077
Per trial 1 351 1 0 − 0.242 − 0.247
Spatial Scale: < 0.001 1 0.03 35.13 1.54 41a
Between patches 12 13285 9 3 − 0.049 − 0.037 ± 0.090
Out of patch 14 2163 11 3 − 0.123 − 0.156 ± 0.142

*P significant atα= 0.05; **P significant atα= 0.01

aQ significant atα= 0.05