Figure 1.
Home ranges of nine Cape vultures with species distribution map and Cape vulture-power line incidents.
(A) Shaded red and dark blue polygons represent the combined 99% kernel density estimated (KDE) contours of all adult and immature vultures, respectively. The diagonal line shaded polygons represent the extent of the Cape vulture species distribution according to BirdLife International [37]. The capture site is indicated by a black triangle. (B) The hollow red polygons represent the combined 50% KDE contours of all nine vultures. Black crosses show locations of Cape vulture-power line incidents recorded in the Central Incident Register of the EWT-Eskom strategic partnership [39].
Table 1.
Home range and distance estimates for nine Cape vultures tracked by GPS-GSM units.
Figure 2.
Stationary GPS locations in relation to protected areas and transmission power lines in the northern provinces of South Africa.
Stationary GPS locations (red circles) from nine Cape vultures tracked by GPS-GSM tracking units are shown with transmission power lines (blue lines) and protected areas (green ploygons [40], [41]). 1 = Marakele NP and Welgevonden NR; 2 = Pilanesberg NP; 3 = Magaliesberg NR; 4 = Madikwe GR; 5 = Atherstone NR; 6 = Marico-Bosveld NR; 7 = Botsalano GR; 8 = Oog van Malmanie GR; 9 = Borakalalo GR; 10 = Lapalala, Moepel et al. reserves. The capture site is indicated by a black triangle.
Figure 3.
Stationary GPS locations and core areas in relation to transmission power lines in the Northern Cape Province, South Africa.
Stationary GPS locations (green circles) and merged 50% kernel density estimated (KDE) contours (hollow red polygons) from nine Cape vultures are shown in relation to transmission power lines (blue lines).
Table 2.
Availability and use of protected areas by nine Cape vultures at the overall and core home range scales.