Table 1. Foraging range and distance estimates for six immature African white-backed vultures.
Foraging range area estimates (km2) | Distance estimates (km) | ||||||||||
Vulture ID | Tracking period (days) | GPS locations | 100% MCP | 95% KDE | 50% KDE | Path GCR | Core GCR | Total distance travelled | Mean (± SE) distance between consecutive locations | Maximum distance travelled/day | Mean (± SE) total distance travelled/day |
AG330 | 301 | 896 | 144,568 | 125,861 | 29,714 | 59,400 | 5,700 | 7,699.03 | 8.60±0.61 | 183.90 | 25.84±2.04 |
AG331 | 313 | 935 | 155,301 | 145,854 | 28,044 | 89,800 | 11,400 | 15,293.49 | 16.37±0.83 | 267.43 | 48.86±2.59 |
AG350 | 300 | 898 | 124,492 | 47,132 | 8,825 | 43,100 | 4,200 | 11,273.75 | 12.57±0.67 | 241.63 | 37.58±2.23 |
AG356 | 226 | 680 | 332,451 | 342,413 | 34,967 | 44,900 | 2,300 | 5,032.54 | 7.41±0.62 | 171.22 | 22.27±2.13 |
AG032 | 206 | 616 | 588,705 | 582,795 | 122,465 | 74,500 | 4,000 | 8,453.76 | 13.75±1.01 | 223.48 | 41.04±2.95 |
AG332 | 101 | 301 | 439,520 | 765,483 | 132,662 | 28,400 | 2,700 | 2,502.17 | 8.34±1.14 | 160.17 | 24.77±3.94 |
MCPs including all recorded GPS locations (100% MCP), 95% contours from kernel density estimation (KDE), and path grid cell ranges (GCRs) represent overall foraging ranges. 50% KDE contours and core GCRs represent core foraging ranges. Total distances travelled during total tracking periods, mean (± SE) distances between consecutive GPS locations, maximum and mean (± SE) total distances travelled per day are shown for each vulture. The tracking period and number of GPS locations recorded are also shown.