Table 3 Results of generalized mixed-effects linear-regression models evaluating variation in spatial overlap of wild pigs at Buck Island Ranch, FL. Spatial overlap was measured by utilization distribution of overlap index (UDOI, a and b) and degree (c and d). Random effects include the two individuals that are interacting (Dyad) or the individual (ID) and the year (Year) or the sampling period (e.g. Wet 2015, SP). Models include sex (Sex), level (home range-home range (HR-HR), home range–core area (HR–CA), and core area–core area (CA–CA) overlap, and season as fixed effects. For UDOI, sex indicates the sex of the two interacting individuals (two females, female and male, and two males). For degree, sex is the sex of the individual used to determine degree. Model output includes the number of parameters (K), AIC values, ΔAIC values, AIC weights (wi), and residual deviance (Dev.).
From: Seasonal variation in space use and territoriality in a large mammal (Sus scrofa)
K | AIC | ΔAIC | wi | Dev | |
|---|---|---|---|---|---|
a. UDOI: HRHR–HRCA | |||||
(1|Dyad) + Level + Season | 5 | − 2077.35 | – | 0.53 | 1043.71 |
(1|Dyad) + Level + Season + (Level × Season) | 6 | − 2075.92 | 1.43 | 0.26 | 1044.01 |
(1|Dyad) + Level + Sex + Season | 7 | − 2075.43 | 1.92 | 0.20 | 1044.78 |
(1|Dyad) + Level + Sex + Season + (Level × Sex × Season) | 14 | − 2065.31 | 12.04 | 0.00 | 1046.89 |
(1|Dyad) + Sex + Level | 6 | − 2064.47 | 12.88 | 0.00 | 1038.28 |
(1|Dyad) + Level | 4 | − 2064.25 | 13.09 | 0.00 | 1036.15 |
(1|Dyad) + Level + Sex + (Level × Sex) | 8 | − 2060.87 | 16.48 | 0.00 | 1038.52 |
(1|Dyad) + Season | 4 | − 2002.05 | 75.30 | 0.00 | 1005.05 |
(1|Dyad) + Sex + Season | 6 | − 2000.18 | 77.16 | 0.00 | 1006.14 |
(1|Dyad) + Sex + Season + (Sex × Season) | 8 | − 1998.16 | 79.19 | 0.00 | 1007.16 |
(1|Dyad) + Sex | 5 | − 1991.35 | 85.99 | 0.00 | 1000.71 |
(1|Dyad) | 3 | − 1991.15 | 86.20 | 0.00 | 998.59 |
(1|Dyad) + (1|Year) | 4 | − 1989.14 | 88.21 | 0.00 | 998.59 |
Intercept-only | 2 | − 1551.06 | 526.29 | 0.00 | 777.54 |
(1|Year) | 3 | − 1546.80 | 530.55 | 0.00 | 776.41 |
b. UDOI: HRCA–CACA | |||||
(1|Dyad) + Level + Season | 5 | − 1289.16 | – | 0.45 | 649.65 |
(1|Dyad) + Level + Season + (Level × Season) | 6 | − 1287.55 | 1.61 | 0.20 | 649.88 |
(1|Dyad) + Level | 4 | − 1286.87 | 2.29 | 0.14 | 647.48 |
(1|Dyad) + Level + Sex + Season | 7 | − 1286.61 | 2.55 | 0.13 | 650.44 |
(1|Dyad) + Level + Sex | 6 | − 1285.17 | 3.99 | 0.06 | 648.69 |
(1|Dyad) + Level + Sex + (Level × Sex) | 8 | − 1283.11 | 6.05 | 0.02 | 649.73 |
(1|Dyad) + Level + Sex + Season + (Level × Sex × Season) | 14 | − 1277.25 | 11.91 | 0.00 | 653.15 |
(1|Dyad) + Season | 4 | − 1253.95 | 35.21 | 0.00 | 631.02 |
(1|Dyad) | 3 | − 1252.29 | 36.87 | 0.00 | 629.17 |
(1|Dyad) + Sex + Season | 6 | − 1251.44 | 37.73 | 0.00 | 631.82 |
(1|Dyad) + Sex | 5 | − 1250.59 | 38.57 | 0.00 | 630.37 |
(1|Dyad) + (1|Year) | 4 | − 1250.25 | 38.91 | 0.00 | 629.17 |
(1|Dyad) + Sex + Season + (Sex × Season) | 8 | − 1249.71 | 39.45 | 0.00 | 633.03 |
Intercept-only | 2 | − 1092.45 | 196.71 | 0.00 | 548.24 |
(1|Year) | 3 | − 1090.42 | 198.74 | 0 | 548.24 |
c. Degree: HRHR–HRCA | |||||
(1|ID) + (1|SP) + Level + Sex | 6 | 695.30 | – | 0.45 | − 341.37 |
(1|ID) + (1|SP) + Level + Sex + Season | 7 | 696.55 | 1.25 | 0.24 | − 340.90 |
(1|ID) + (1|SP) + Level + Sex + (Level × Sex) | 7 | 697.49 | 2.18 | 0.15 | − 341.37 |
(1|ID) + (1|SP) + Sex | 5 | 698.97 | 3.66 | 0.07 | − 344.29 |
(1|ID) + (1|SP) + Sex + Season | 6 | 700.19 | 4.89 | 0.04 | − 343.82 |
(1|ID) + (1|SP) + Sex + Season + (Sex × Season) | 7 | 701.80 | 6.49 | 0.02 | − 343.52 |
(1|ID) + (1|SP) + Level | 5 | 702.57 | 7.26 | 0.01 | − 346.09 |
(1|ID) + (1|SP) + Level + Season | 6 | 703.69 | 8.39 | 0.01 | − 345.57 |
(1|ID) + (1|SP) + Level + Sex + Season + (Level × Sex × Season) | 11 | 704.11 | 8.81 | 0.01 | − 340.15 |
(1|ID) + (1|SP) + Level + Season + (Level × Season) | 7 | 705.23 | 9.93 | 0.00 | − 345.24 |
(1|ID) + (1|SP) | 4 | 706.26 | 10.96 | 0.00 | − 349.00 |
(1|ID) + (1|SP) + Season | 5 | 707.35 | 12.05 | 0.00 | − 348.48 |
(1|ID) | 3 | 741.46 | 46.16 | 0.00 | − 367.65 |
(1|SP) | 3 | 756.12 | 60.82 | 0.00 | − 374.98 |
Intercept-only | 2 | 766.09 | 70.79 | 0.00 | − 381.01 |
d. HRCA–CACA | |||||
(1ID) + (1|SP) + Level + Sex | 6 | 653.17 | – | 0.40 | − 320.31 |
(1ID) + (1|SP) + Level + Sex + Season | 7 | 653.47 | 0.30 | 0.34 | − 319.36 |
(1ID) + (1|SP) + Level + Sex + (Level × Sex) | 7 | 654.37 | 1.20 | 0.22 | − 319.81 |
(1ID) + (1|SP) + Level | 5 | 660.74 | 7.57 | 0.01 | − 325.17 |
(1ID) + (1|SP) + Level + Season | 6 | 660.84 | 7.67 | 0.01 | − 324.14 |
(1ID) + (1|SP) + Level + Sex + Season + (Level × Sex × Season) | 11 | 660.90 | 7.73 | 0.01 | − 318.55 |
(1ID) + (1|SP) + Level + Season + (Level × Season) | 7 | 662.43 | 9.26 | 0.00 | − 323.84 |
(1ID) + (1|SP) + Sex + Season | 6 | 669.65 | 16.48 | 0.00 | − 328.55 |
(1ID) + (1|SP) + Sex + Season + (Sex × Season) | 7 | 671.63 | 18.46 | 0.00 | − 328.44 |
(1ID) + (1|SP) | 4 | 676.96 | 23.79 | 0.00 | − 334.35 |
(1ID) + (1|SP) + Season | 5 | 677.04 | 23.87 | 0.00 | − 333.32 |
(1ID) + (1|SP) + Sex | 4 | 692.98 | 39.81 | 0.00 | − 342.36 |
(1|ID) | 3 | 714.55 | 61.38 | 0.00 | − 354.20 |
(1|SP) | 3 | 717.57 | 64.40 | 0.00 | − 355.71 |
Intercept-only | 2 | 813.62 | 160.45 | 0.00 | − 404.77 |
