Table 1. Summary of individual characteristics of female Australian fur seals and the relative contribution of the explanatory variables used in MaxEnt models describing their foraging locations.
Seal | Mass | Length | Girth | Flipper* | Axis | Age | Relative contribution (%) in MaxEnt models # | Foraging | AUC | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(kg) | (cm) | (cm) | (cm) | (cm) | (y) | bathymetry | complexity | colony | coast | pipes/cables | wells | shipwrecks | cells ## (n) | ||
1 | 86.5 | 159.0 | 106.0 | 42.0 | 62.0 | 13 | 0.6 | 0.0 | 48.6 | 6.3 | 16.4 | 23.9 | 4.2 | 122 | 0.98 |
2 | 91.5 | 165.0 | 110.5 | 43.5 | 72.5 | 12 | 4.5 | 0.3 | 6.6 | 37.1 | 16.2 | 25.8 | 9.5 | 14 | 0.99 |
3 | 77.0 | 156.5 | 95.0 | 45.0 | 60.5 | 8 | 0.5 | 3.6 | 5.1 | 54.0 | 8.1 | 18.8 | 9.9 | 51 | 0.99 |
4 | 82.0 | 161.5 | 105.0 | 47.5 | 65.0 | 8 | 0.7 | 0.1 | 18.8 | 13.2 | 31.4 | 22.4 | 13.5 | 57 | 0.98 |
5 | 75.0 | 152.5 | 104.0 | 39.5 | 61.5 | 10 | 0.0 | 0.3 | 6.2 | 67.0 | 14.2 | 6.8 | 5.6 | 11 | 0.99 |
6 | 59.0 | 142.5 | 97.5 | 41.0 | 61.5 | 4 | 8.6 | 26.8 | 26.1 | 29.8 | 0.0 | 8.6 | 0.1 | 11 | 0.93 |
7 | 90.0 | 160.0 | 106.5 | 43.5 | 66.5 | - | 2.7 | 0.0 | 67.7 | 9.3 | 2.4 | 13.6 | 4.3 | 31 | 0.98 |
8 | 86.5 | 155.0 | 101.0 | 42.5 | 61.0 | - | 1.4 | 0.2 | 4.5 | 72.1 | 9.2 | 4.2 | 8.4 | 57 | 0.98 |
9 | 91.0 | 160.5 | 112.5 | 41.0 | 64.5 | - | 20.6 | 0.0 | 5.7 | 61.2 | 11.6 | 0.9 | 0.0 | 8 | 0.92 |
10 | 89.0 | 160.0 | 110.5 | 43.5 | 69.0 | 12 | 7.6 | 0.0 | 61.6 | 3.3 | 14.6 | 6.1 | 6.9 | 9 | 0.99 |
11 | 84.0 | 157.0 | 106.0 | 48.5 | 64.5 | - | 0.0 | 0.3 | 0.0 | 5.8 | 58.1 | 6.1 | 29.7 | 29 | 0.95 |
12 | 71.0 | 149.0 | 93.5 | 39.0 | 58.0 | 5 | 0.0 | 22.0 | 49.2 | 19.9 | 4.2 | 1.9 | 2.8 | 21 | 0.99 |
13 | 59.0 | 142.0 | 96.0 | 41.0 | 62.5 | 4 | 3.2 | 17.3 | 2.4 | 40.7 | 16.9 | 13.7 | 5.8 | 37 | 0.99 |
14 | 67.0 | 146.5 | 97.5 | 41.0 | 63.5 | 5 | 1.5 | 1.9 | 9.3 | 39.2 | 19.6 | 6.8 | 21.7 | 27 | 0.99 |
15 | 69.0 | 142.0 | 102.5 | 39.0 | 62.0 | 4 | 11.3 | 13.1 | 42.6 | 5.3 | 5.0 | 20.1 | 2.5 | 17 | 0.99 |
16 | 81.0 | 151.5 | 103.0 | 42.5 | 64.0 | 6 | 0.2 | 0.0 | 6.0 | 20.3 | 25.6 | 47.6 | 0.4 | 193 | 0.99 |
17 | 72.0 | 154.5 | 100.5 | 44.5 | 69.5 | 8 | 1.3 | 25.3 | 18.5 | 18.1 | 23.3 | 4.8 | 8.9 | 32 | 0.99 |
18 | 91.5 | 159.0 | 118.5 | 45.5 | 68.0 | 7 | 0.6 | 0.0 | 62.9 | 22.4 | 10.7 | 0.4 | 3.0 | 34 | 0.99 |
19 | 80.0 | 150.0 | 106.0 | 41.5 | 72.5 | 12 | 2.5 | 0.1 | 30.0 | 40.3 | 15.2 | 6.5 | 5.4 | 37 | 0.99 |
20 | 63.5 | 146.5 | 98.5 | 40.5 | 64.5 | 6 | 0.0 | 0.0 | 2.6 | 56.9 | 30.1 | 0.4 | 10.0 | 54 | 0.97 |
21 | 77.0 | 149.5 | 109.5 | 42.5 | 68.0 | - | 2.6 | 9.6 | 37.9 | 37.2 | 9.6 | 0.3 | 2.8 | 25 | 0.99 |
22 | 81.5 | 156.5 | 112.0 | 43.5 | 66.5 | 10 | 1.0 | 0.0 | 16.5 | 27.9 | 53.9 | 0.7 | 0.0 | 15 | 0.99 |
23 | 55.0 | 139.5 | 93.5 | 40.5 | 59.0 | - | 0.0 | 1.7 | 20.0 | 45.8 | 7.4 | 17.7 | 7.4 | 27 | 0.99 |
24^ | 86.5 | 160.0 | 116.0 | 43.0 | 68.5 | 11 | - | - | - | - | - | - | - | - | - |
25 | 51.0 | 135.0 | 89.5 | 40.0 | 58.5 | 4 | 0.0 | 0.0 | 0.3 | 0.3 | 39.6 | 59.5 | 0.4 | 17 | 0.99 |
26 | 56.0 | 139.0 | 95.5 | 41.5 | 65.5 | 8 | 2.0 | 1.0 | 79.0 | 9.9 | 6.6 | 0.0 | 1.5 | 29 | 0.99 |
27^ | 62.5 | 147.5 | 95.5 | 43.5 | 60.0 | 4 | - | - | - | - | - | - | - | - | - |
28 | 101.0 | 154.5 | 119.5 | 44.0 | 73.0 | - | 2.0 | 0.2 | 28.1 | 4.8 | 8.3 | 36.7 | 20.0 | 15 | 0.95 |
29 | 71.0 | 144.5 | 98.0 | 41.5 | 64.0 | 7 | 1.3 | 0.3 | 0.7 | 43.0 | 18.3 | 16.1 | 20.3 | 80 | 0.90 |
30 | 63.5 | 145.0 | 92.0 | 42.0 | 61.0 | - | 7.5 | 2.2 | 44.5 | 28.3 | 14.4 | 1.0 | 2.1 | 45 | 0.94 |
31 | 84.5 | 158.0 | 103.0 | 45.0 | 64.5 | - | 0.1 | 1.4 | 27.6 | 22.4 | 48.2 | 0.4 | 0.0 | 42 | 0.98 |
32 | 75.5 | 141.5 | 110.0 | 41.5 | 58.0 | - | 0.6 | 13.1 | 6.9 | 35.3 | 6.1 | 23.5 | 14.6 | 31 | 0.90 |
33 | 88.5 | 166.0 | 100.0 | 48.0 | 66.0 | - | 0.0 | 2.7 | 62.2 | 1.0 | 3.9 | 18.7 | 11.6 | 48 | 0.97 |
34 | 88.0 | 161.5 | 103.0 | 47.5 | 69.5 | - | 15.1 | 0.5 | 34.1 | 16.2 | 18.5 | 6.7 | 8.9 | 66 | 0.92 |
35 | 69.5 | 142.0 | 95.5 | 39.0 | 58.5 | - | 4.3 | 3.0 | 52.4 | 25.2 | 7.1 | 6.9 | 1.0 | 31 | 0.92 |
36 | 87.5 | 159.0 | 104.5 | 42.5 | 66.5 | - | 0.0 | 0.0 | 3.9 | 20.8 | 22.4 | 19.7 | 33.1 | 35 | 0.94 |
Mean | 76.8 | 151.9 | 103.0 | 42.7 | 64.4 | 7.6 | 3.1 | 4.3 | 26.1 | 27.7 | 17.6 | 13.2 | 8.1 | 39.9 | 0.97 |
SE | 2.1 | 1.4 | 1.3 | 0.4 | 0.7 | 0.6 | 0.8 | 1.3 | 4.0 | 3.4 | 2.5 | 2.4 | 1.4 | 6.1 | 0.01 |
Individuals in bold had distance to anthropogenic structure as the greatest contributing factor in models.
*fore-flipper length.
#bathymetry and sea floor complexity at location of dives and their distance to all other features
^insufficient dive locations to build MaxEnt model.
##grid cells containing areas of intensive foraging activity.