Hunting Intensity on Wildlife Population in Oban Sector of Cross River National Park


Hunting intensity in Oban Sector of Cross River National Park, Nigeria was investigated. The methodology involved the recording of signs of hunting activity using line transects, and interviews with hunters. A total of 33 gunshots, 21 spent cartridges, 26 wire snares, presence of 7 hunters and two hunters’ camps and other several hunting signs were recorded for a total of 68 km of transects walked. Nine species of mammals were hunted, notably the Chimpanzee Pan troglodytes, Mona monkey (Cercopithecus mona), Puttynose monkey (Cercopithecus nictitans), Red river hog (Potamochoerus porcus), Drill (Mandrillus leucophaeus), Brush-tailed Porcupine (Atherurus africanus), Blue duiker (Cephalophus monticla), Bushbuck (Tragelaphus scriptus), Ogilby’s duiker (Cephalophus dorsalis), Western tree hyrax (Dendrohyrax dorsalis), and Grasscutter (Thryonomys swinderianus). The interviews revealed the most hunted species as the iii Primates (Cercopithecus spp 28.48%), African brush-tailed Porcupine (Atherurus africanus) (37.74%), Blue Duiker (Philantomba monticola) (26.82%), Bushbuck (Tragelaphus scriptus) (6.96%), Pangolin (Manis tetradactyla), Red river hog (Potamochoerus porcus) and Grasscutter (Thyronomys swinderianus) with the first four being the most commonly hunted. Shotguns and Wire snares were the two main hunting methods used, with the former being used (88.24%) of all the hunters interviewed, and the latter (11.76%) of the hunters. Each hunter set 50 - 300 wire snares, of which there were two types: 1) ground snare without fencing (neck wire snare), and 2) ground snare with fencing (foot/leg wire snares. Most of the wire snares hunting take place mainly during the raining season. The study revealed high hunting intensity in Oban Sector of CRNP. Some of the recommended measures to ameliorate the menace include the initiation of public education and awareness programmes, establishment of task forces to check bushmeat hunting, execution of stricter law enforcement, good welfare package for park rangers and more punitive sanctions for offenders.

Share and Cite:

Lameed, G. , Omifolaji, J. , Abere, A. and Ilori, S. (2015) Hunting Intensity on Wildlife Population in Oban Sector of Cross River National Park. Natural Resources, 6, 325-330. doi: 10.4236/nr.2015.64029.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Milner-Gulland, E.J. and Bennett, E.L. (2003) Wild Meat: The Bigger Picture. Trends in Ecology and Evolution, 18, 351-357.
[2] Wilkie, D.S. and Carpenter, J.F. (1999) Bushmeat Hunting in Congo Basin: An Assessment of Impacts and Options for Mitigation. Biodiversity and Conservation, 8, 927-955.
[3] Fa, J.E. and Brown, D. (2009) Impacts of Hunting on Mammals in African Tropical Moist Forests: A Review and Synthesis. Mammal Review, 39, 231-264.
[4] Wilkie, D.S., Sidle, J.G. and Boundzanga, G.C. (1992) Mechanized Logging, Market Hunting, and a Bank Loan in Congo. Conservation Biology, 6, 570-580.
[5] Thibault, M. and Blaney, S. (2003) The Oil Industry as an Underlying Factor in the Bushmeat Crisis in Central Africa. Conservation Biology, 17, 1807-1813.
[6] Novaro, A., Redford, K. and Bodmer, R. (2000) Effects of Hunting In Source-Sink Systems in the Neotropics. Conservation Biology, 14, 713-721.
[7] Siren, A., Hamback, P. and Machoa, J. (2004) Including Spatial Heterogeneity and Animal Dispersal When Evaluating Hunting: A Model Analysis and an Empirical Assessment in an Amazonian Community. Conservation Biology, 18, 1315-1329.
[8] Hames, R. (1988) Game Conservation or Efficient Hunting. In: Mccay, B. and Acheson, J., Eds., Capturing the Commons: Anthropological Approaches to Resource Management, University Of Arizona Press, Tucson, 192-207.
[9] Alvard, M.S. (1994) Conservation by Native Peoples—Prey Choice in a Depleted Habitat. Human Nature, 5, 127-154.
[10] Begazo, A.J. and Bodmer, R E. (1998) Use and Conservation of Cracidae (Aves: Galliformes) in the Peruvian Amazon. Oryx, 32, 301-309.
[11] Peres, C.A. and Lake, I.R. (2003) Extent of Non-Timber Resource Extraction in Tropical Forests: Accessibility to Game Vertebrates by Hunters in the Amazon Basin. Conservation Biology, 17, 521-537.
[12] Alvard, M., Robinson, J.G., Redford, K.H. and Kaplan, H. (1997) The Sustainability of Subsistence Hunting in the Neotropics: Data from Two Native Communities. Conservation Biology, 11, 977-982.
[13] Pulliam, H.R. (1988) Sources, Sinks and Population Regulation. The American Naturalist, 132, 652-661.
[14] Salas, L. and Kim, J. (2002) Spatial Factors and Stochasticity in the Evaluation of Sustainable Hunting of Tapirs. Conservation Biology, 16, 86-96.
[15] Barrie, A. and Aalangdong, O. (2005) Rapid Assessment of Large Mammals at Draw River, Boi-Tano and Krokosua Hills. In: McCullough, J., Decher, J. and Kpelle, D., Eds., A Biological Assessment of the Terrestrial Ecosystems of the Draw River, Boi-Tano, Tano Nimiri and Krokosua Hills Forest Reserves, Southwestern Ghana, number 36 in RAP Bulletin of Biological Assessment, Conservation International—Center for Applied Biodiversity Sciences, Washington DC, 67-72.
[16] Bennett, E.L. and Robinson, J.G. (2000) Hunting of Wildlife in Tropical Forests: Implications for Biodiversity and Forest People WCS New York. In: Bennett, E.L. and Robinson, J.G., Eds., Hunting For Sustainability in Tropical Forests, Columbia University, New York.
[17] Barnes, R.F.W. (2002) The Bushmeat Boom and Bust in West and Central Africa. Oryx, 36, 236-212.
[18] Bennett, E.L., Robinson, J.G., Milner-Gulland, E.J., Bakarr, M., Eves, H.E. and Wilkie, D.S. (2002) Hunting the World’s Wildlife to Extinction. Oryx, 36, 328-329.
[19] Bennett, E.L. (2004) Seeing the Wildlife and Trees Improving Timber Certification to Conserve Tropical Forest Wildlife. Wildlife Conservation Society Paper World Bank, Washington.
[20] Buckland, S.T., Anderson, D.R., Burnham, K.P., Laake, J.L., Borchers, D.L. and Thomas, L. (2001) Introduction to Distance Sampling: Estimating Abundance of Biological Populations. Oxford University Press, Oxford
[21] Waltert, M., Heber, S., Riedelbauch, S., Lien, J.L. and Muhlenberg, M. (2006) Estimates of Blue Duiker (Cephalophus monticola) Densities from Diurnal and Nocturnal Line Transects in the Korup Region, South-Western Cameroon. African Journal of Ecology, 44, 290-292.
[22] Bass, M., Aviram, R. and Parker, K. (2003) Timber Certification: Prospects and Progress in Addressing Wildlife Issues in Central Africa. In: Uncertain Future: The Bushmeat Crisis in Africa, 230 p.
[23] Nasi, R., Brown, D., Wilkie, D., Bennett, E., Tutin, C., van Tol, G. and Christophersen, T. (2008) Conservation and Use of Wildlife-Based Resources: The Bushmeat Crisis. Technical Series No. 33, Secretariat of the Convention on Biological Diversity, Montreal, and Center for International Forestry Research (CIFOR), Bogor, 50 p.
[24] Jimoh, S., Alarape, A., Ikyaagba, E. and Adeyemi, A. (2012) Preliminary Information on the Density and Distribution of Duiker in the Oban Division of Cross River National Park, Nigeria. African Journal of Ecology.

Copyright © 2022 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.