Location | Year | Season | Census area [km2] | Impala numbers | Gerenuk density [per km2] | Proportion [%] gerenuk numbers in the borderland |
Amboseli and surrounding group ranches | 2010 | Wet | 8797.00 | 73 | 0.01 | 62.39 |
Dry | 8797.00 | 84 | 0.01 | 76.36 | ||
2013 | Wet | 9214.44 | 114 | 0.01 | 43.51 | |
Dry | 9214.44 | 90 | 0.01 | 38.46 | ||
Overall [Mean ± SE] | − | 90.3 ± 8.7 | 0.01 ± 0.00 | 55.18 ± 8.74 | ||
Magadi/Namanga Areas | 2010 | Wet | 5513.00 | 5 | 0.00 | 4.27 |
Dry | 5513.00 | 2 | 0.00 | 1.82 | ||
2013 | Wet | 6348.32 | 37 | 0.01 | 14.12 | |
Dry | 63.48.32 | 48 | 0.01 | 20.51 | ||
Overall [Mean ± SE] | − | 23.0 ± 11.5 | 0.00 ± 0.00 | 10.18 ± 4.35 | ||
West Kilimanjaro Area | 2010 | Wet | 3014.00 | 11 | 0.00 | 9.40 |
Dry | 3014.00 | 1 | 0.00 | 0.91 | ||
2013 | Wet | 3013.18 | 66 | 0.02 | 25.19 | |
Dry | 3013.18 | 29 | 0.01 | 12.39 | ||
Overall [Mean ± SE] | − | 26.8± 14.3 | 0.01 ± 0.00 | 11.97 ± 5.03 | ||
Lake Natron Area | 2010 | Wet | 7047.00 | 28 | 0.00 | 23.93 |
Dry | 7047.00 | 23 | 0.00 | 20.91 | ||
2013 | Wet | 7047.26 | 45 | 0.01 | 17.18 | |
Dry | 7047.26 | 67 | 0.01 | 28.63 | ||
Overall [Mean ± SE] | − | 40.8 ± 9.9 | 0.01 ± 0.00 | 22.66 ± 2.42 |