Effective conservation of wildlife in and outside protected areas is based on sound scientific knowledge, usually made available through research. Few researchers focus on large carnivores in Cameroon, especially lions (Panthera leoleo), which occur at low densities, and generally range widely over large, remote areas. Unlike other species, research and conservation action on lions require special methods and technology for effective data collection. This paper reports on the use of technology for lion research and conservation in two sites in Cameroon: Waza National Park (Waza NP), and Bouba Njidda National Park (BNNP). We fitted lions with GPS collars, some with satellite download functionality, and others requiring data downloads over a GSM network. Collaring was achieved using a call playback station method to study the spatial ecology and movement patterns of lions, and their potential interactions with local communities. Additionally, we deployed camera traps in Waza National Park to document lion habitat use and occupancy as well as to assess protected area wildlife diversity. In Waza NP, these technologies revealed that lions spent significant periods outside of the park in local communities predating on livestock and causing conflict with people. Whereas we found that carnivore diversity was relatively high, we also documented an alarming amount of illegal anthropogenic pressure inside the park’s boundaries, including pastoralism, poaching, and fishing. Our preliminary findings suggest that in and around BNNP, lions also moved into local communities abutting the park, suggesting a high potential for human-lion conflict and consistent with anecdotal information provided by these communities. The combined use of these technologies yielded new insights relevant to the management of lions and these protected areas, the mitigation of human-lion conflict, and the planning of ranger patrols, all of which would have been otherwise difficult if not impossible to obtain.
References
[1]
Everatt, K.T., Moore, J.F. and Kerley, G.I.H. (2019) Africa’s Apex Predator, the Lion, Is Limited by Interference and Exploitative Competition with Humans. Global Ecology and Conservation, 20, e00758. https://doi.org/10.1016/j.gecco.2019.e00758
[2]
Ripple, W.J., Estes, J.A., Beschta, R.L., Wilmers, C.C., Ritchie, E.G., Hebblewhite, M., et al. (2014) Status and Ecological Effects of the World’s Largest Carnivores. Science, 343, Article 1241484. https://doi.org/10.1126/science.1241484
[3]
Williams, V.L., Drouilly, M., Coals, P.G.R. and Whittington-Jones, G.M. (2025) Pan-African Review of Cultural Uses of Carnivores. PLOS ONE, 20, e0315903. https://doi.org/10.1371/journal.pone.0315903
[4]
Lindsey, P., Allan, J., Brehony, P., Dickman, A., Robson, A., Begg, C., et al. (2020) Conserving Africa’s Wildlife and Wildlands through the COVID-19 Crisis and beyond. Nature Ecology & Evolution, 4, 1300-1310. https://doi.org/10.1038/s41559-020-1275-6
Creel, S., Becker, M.S., Goodheart, B., Kusler, A., Banda, K., Banda, K., et al. (2025) Changes in African Lion Demography and Population Growth with Increased Protection in a Large, Prey-Depleted Ecosystem. Conservation Science and Practice, 7, e13256. https://doi.org/10.1111/csp2.13256
[7]
Bauer, H., de Iongh, H. and Sogbohossou, E. (2010) Assessment and Mitigation of Human-Lion Conflict in West and Central Africa. Mammalia, 74, 363-367. https://doi.org/10.1515/mamm.2010.048
[8]
Tumenta, P.N., Visser, H.D., van Rijssel, J., Müller, L., de Iongh, H.H., Funston, P.J., et al. (2013) Lion Predation on Livestock and Native Wildlife in Waza National Park, Northern Cameroon. Mammalia, 77, 247-251. https://doi.org/10.1515/mammalia-2012-0063
[9]
Tumenta, P.N., de Iongh, H.H., Funston, P.J. and Udo de Haes, H.A. (2013) Livestock Depredation and Mitigation Methods Practised by Resident and Nomadic Pastoralists around Waza National Park, Cameroon. Oryx, 47, 237-242. https://doi.org/10.1017/s0030605311001621
[10]
Bauer, H., Chapron, G., Nowell, K., Henschel, P., Funston, P., Hunter, L.T.B., et al. (2015) Lion (Panthera leo) Populations Are Declining Rapidly across Africa, Except in Intensively Managed Areas. Proceedings of the National Academy of Sciences, 112, 14894-14899. https://doi.org/10.1073/pnas.1500664112
[11]
Ram, M., Sahu, A., Srivastava, N., Jhala, L., Zala, Y. and Venkataraman, M. (2022) Conservation Management of the Endangered Asiatic Lions in Gujarat, India, Using GPS Satellite Telemetry. Animals, 13, Article 125. https://doi.org/10.3390/ani13010125
[12]
Bertola, L.D., Jongbloed, H., van der Gaag, K.J., de Knijff, P., Yamaguchi, N., Hooghiemstra, H., et al. (2016) Phylogeographic Patterns in Africa and High Resolution Delineation of Genetic Clades in the Lion (Panthera leo). Scientific Reports, 6, Article No. 30807. https://doi.org/10.1038/srep30807
[13]
Nicholson, S., Henschel, P., Strampelli, P., Laguardia, A., Bauer, H., Meena, V., Asfaw, T. and Ouindeyama, A.D. (2025) Panthera leo ssp. leo. The IUCN Red List of Threatened Species 2025: e.T280668607A280668782.
[14]
LeFlore, E.G., Fuller, T.K. and Stein, A.B. (2023) Lion (Panthera leo) Movements in a Multiuse Area of the Eastern Panhandle of the Okavango Delta, Botswana. Journal of Mammalogy, 104, 1317-1328. https://doi.org/10.1093/jmammal/gyad090
[15]
Tumenta, P.N., van’t Zelfde, M., Croes, B.M., Buij, R., Funston, P.J., Udo de Haes, H.A., et al. (2013) Changes in Lion (Panthera leo) Home Range Size in Waza National Park, Cameroon. Mammalian Biology, 78, 461-469. https://doi.org/10.1016/j.mambio.2013.08.006
[16]
Lhoest, S., Linchant, J., Gore, M.L. and Vermeulen, C. (2022) Conservation Science and Policy Should Care about Violent Extremism. Global Environmental Change, 76, Article 102590. https://doi.org/10.1016/j.gloenvcha.2022.102590
[17]
Lynam, A.J., Cronin, D.T., Wich, S.A., Steward, J., Howe, A., Kolla, N., et al. (2025) The Rising Tide of Conservation Technology: Empowering the Fight against Poaching and Unsustainable Wildlife Harvest. Frontiers in Ecology and Evolution, 13, Article 1527976. https://doi.org/10.3389/fevo.2025.1527976
[18]
Petracca, L.S., Frair, J.L., Bastille-Rousseau, G., Hunt, J.E., Macdonald, D.W., Sibanda, L., et al. (2019) The Effectiveness of Hazing African Lions as a Conflict Mitigation Tool: Implications for Carnivore Management. Ecosphere, 10, e02967. https://doi.org/10.1002/ecs2.2967
[19]
Weise, F.J., Hauptmeier, H., Stratford, K.J., Hayward, M.W., Aal, K., Heuer, M., et al. (2019) Lions at the Gates: Trans-Disciplinary Design of an Early Warning System to Improve Human-Lion Coexistence. Frontiers in Ecology and Evolution, 6, Article 242. https://doi.org/10.3389/fevo.2018.00242
[20]
Amin, R., Fankem, O., Gilbert, O.N., Bruce, T., et al. (2022) Assessing the Status of Great Apes in the Dja Faunal Reserve Using Distance Sampling and Camera-Trapping. Primate Conservation, 36, 113-124.
[21]
Bruce, T., Amin, R., Wacher, T., Fankem, O., Ndjassi, C., Ngo Bata, M., et al. (2018) Using Camera Trap Data to Characterise Terrestrial Larger-Bodied Mammal Communities in Different Management Sectors of the Dja Faunal Reserve, Cameroon. African Journal of Ecology, 56, 759-776. https://doi.org/10.1111/aje.12574
[22]
Simo, F., Difouo Fopa, G., Kekeunou, S., Ichu, I.G., Esong Ebong, L., Olson, D., et al. (2020) Using Local Ecological Knowledge to Improve the Effectiveness of Detecting White-Bellied Pangolins (Phataginustricuspis) Using Camera Traps: A Case Study from Deng-Deng National Park, Cameroon. African Journal of Ecology, 58, 879-884. https://doi.org/10.1111/aje.12762
[23]
Giordano, A.J., Tumenta, P.N. and de Iongh, H.H. (2017) Camera-Trapping Confirms Unheralded Disappearance of the Leopard (Panthera pardus) from Waza National Park, Cameroon. African Journal of Ecology, 55, 722-726. https://doi.org/10.1111/aje.12371
[24]
Ball, I.A., Marneweck, D.G., Elliot, N.B., Gopalaswamy, A.M., Fritz, H. and Venter, J.A. (2023) Considerations on Effort, Precision and Accuracy for Long-Term Monitoring of African Lions (Panthera leo), When Using Bayesian Spatial Explicit Capture-Recapture Models, in Fenced Protected Areas. Ecology and Evolution, 13, e10291. https://doi.org/10.1002/ece3.10291
[25]
Bauer, H. and de Iongh, H.H. (2005) Lion (Panthera leo) Home Ranges and Livestock Conflicts in Waza National Park, Cameroon. African Journal of Ecology, 43, 208-214. https://doi.org/10.1111/j.1365-2028.2005.00570.x
[26]
Ogutu, J.O. and Dublin, H.T. (1998) The Response of Lions and Spotted Hyaenas to Sound Playbacks as a Technique for Estimating Population Size. African Journal of Ecology, 36, 83-95. https://doi.org/10.1046/j.1365-2028.1998.113-89113.x
[27]
Karanth, K.U. and Nichols, J.D. (2000) Ecological Status and Conservation of Tigers in India: Final Technical Report submitted to US Fish and Wildlife Service, Washington DC, and Wildlife Conservation Society, New York. Centre for Wildlife Studies, Bangalore, India.
[28]
Scholte, P., Kamgang, S.A. and Sabuhoro, E. (2023) Beyond the Big Five and Birds: Divergent Ecotourism Perspectives in Rapidly Changing Africa. AnimalConservation, 26, 443-445. https://doi.org/10.1111/acv.12891
[29]
Bauer, H. (2003) Lion Conservation in West and Central Africa—Integrating Social and Natural Science for Wildlife Conflict Resolution around Waza National Park, Cameroon. University of Leiden, The Netherlands.
[30]
Tumenta, P.N. (2012) A Lion Population under Threat—Understanding Lion Ecology and Human-Lion Interactions Related to Livestock Predation in Waza National Park, Cameroon. Doctorate Thesis, Leiden University.
[31]
Jacquier, M., Aarhaug, P., Arnemo, J.M., Bauer, H. and Enriquez, B. (2006) Reversible Immobilization of Free-Ranging African Lions (Panthera leo) with Medetomidine-Tiletamine-Zolazepam and Atipamezole. Journal of Wildlife Diseases, 42, 432-436. https://doi.org/10.7589/0090-3558-42.2.432
[32]
Smuts, G.L., Whyte, I.J. and Dearlove, T.W. (1977) A Mass Capture Technique for Lions. African Journal of Ecology, 15, 81-87. https://doi.org/10.1111/j.1365-2028.1977.tb00381.x
[33]
Funston, P.J. (2011) Population Characteristics of Lions (Panthera leo) in the Kgalagadi Transfrontier Park. South African Journal of Wildlife Research, 41, 1-10. https://doi.org/10.3957/056.041.0108
[34]
Miller, J.R.B. (2015) Mapping Attack Hotspots to Mitigate Human–Carnivore Conflict: Approaches and Applications of Spatial Predation Risk Modeling. Biodiversity and Conservation, 24, 2887-2911. https://doi.org/10.1007/s10531-015-0993-6
[35]
Schuette, P., Creel, S. and Christianson, D. (2013) Coexistence of African Lions, Livestock, and People in a Landscape with Variable Human Land Use and Seasonal Movements. BiologicalConservation, 157, 148-154. https://doi.org/10.1016/j.biocon.2012.09.011
[36]
Bauer, H., Dickman, A., Chapron, G., Oriol-Cotterill, A., Nicholson, S.K., Sillero-Zubiri, C., et al. (2020) Threat Analysis for More Effective Lion Conservation. Oryx, 56, 108-115. https://doi.org/10.1017/s0030605320000253
[37]
Mills, K.L., Harissou, Y., Gnoumou, I.T., Abdel-Nasser, Y.I., Doamba, B. and Harris, N.C. (2020) Comparable Space Use by Lions between Hunting Concessions and National Parks in West Africa. Journal of Applied Ecology, 57, 975-984. https://doi.org/10.1111/1365-2664.13601
[38]
Riggio, J., Jacobson, A., Dollar, L., Bauer, H., Becker, M., Dickman, A., et al. (2013) The Size of Savannah Africa: A Lion’s (Panthera leo) View. Biodiversity and Conservation, 22, 17-35. https://doi.org/10.1007/s10531-012-0381-4