Combining detection dogs and camera traps improves minimally-invasive population monitoring for the cheetah, an elusive and rare large carnivore by Verschueren, S, Hofmann, T, Schmidt-Küntzel, A, Kakove, M, Munyandi, B, Bauer, H, Balkenhol, N, Leirs, H, Neumann, S, Cristescu, B, Marker, L