Correlates of wildlife snaring patterns in Tsavo West National Park, Kenya

Abstract Habitat loss and hunting are currently the twin threats to wildlife across the world. Hunting is such a threat across the tropics that some recent studies have estimated wildlife extraction at six times the sustainable rate in parts of Africa. The traditional methods of wildlife hunting, like setting traps and snares are no longer sustainable as the reasons for hunting are largely moving from subsistence to commercial. We assessed the spatial patterns of snaring activities against target species distribution, habitat types, distance from park border and security patrol efforts using a stratified random sampling design in Tsavo West National Park. Tsavo is not only the largest park in Kenya, but also one that faces an enormous threat from poachers. The finding indicated that the seven strata surveyed had different wildlife density and snaring intensity. Areas of the park adjacent to highways, trans-national borders, ranches and town strata had high wildlife snaring pressure. There was a significant difference between snare size and habitat type but total numbers of snares across habitats were not significantly different. The total wildlife species encountered were influenced by habitat types. Regression analysis between snare density and security patrol effort did not show any trend. There was no significant difference in snare density as the distance increased from the park border. Conservation agencies and volunteer patrol teams specialising in snare collection should intensify their patrol efforts in areas of the park around highways, trans-national borders, ranches and town.

[1]  Tamara C. Grand,et al.  Predation risk, unequal competitors and the ideal free distribution , 1999 .

[2]  A. Sih Optimal Behavior and Density-Dependent Predation , 1984, The American Naturalist.

[3]  P. Jarman,et al.  The Social Organisation of Antelope in Relation To Their Ecology , 1974 .

[4]  D. Wilkie,et al.  Bushmeat hunting in the Congo Basin: an assessment of impacts and options for mitigation , 1999, Biodiversity & Conservation.

[5]  William J. Sutherland,et al.  A Method to Quantify the Effects of Human Disturbance on Animal Populations , 1996 .

[6]  K. U. Karanth,et al.  Local Hunting and the Conservation of Large Mammals in India , 2002, Ambio.

[7]  Mewa Singh,et al.  The influence of differing hunting practices on the relative abundance of mammals in two rainforest areas of the Western Ghats, India , 2004, Oryx.

[8]  L. M. Gosling,et al.  Behaviour and Conservation , 2000 .

[9]  B. Groombridge Global biodiversity: status of the earth's living resources. , 1992 .

[10]  P. Lundberg,et al.  Diet choice and predator—prey dynamics , 1994, Evolutionary Ecology.

[11]  A. Frid,et al.  Synthesis Human-caused Disturbance Stimuli as a Form of Predation Risk , 2002 .

[12]  J. Fa,et al.  Bushmeat Markets on Bioko Island as a Measure of Hunting Pressure , 2000, Conservation biology : the journal of the Society for Conservation Biology.

[13]  R. Barnes The bushmeat boom and bust in West and Central Africa , 2002, Oryx.

[14]  A. Noss The Impacts of Cable Snare Hunting on Wildlife Populations in the Forests of the Central African Republic , 1998 .

[15]  Tamara C. Grand,et al.  Foraging site selection by juvenile coho salmon: ideal free distributions of unequal competitors , 1997, Animal Behaviour.

[16]  E. Werner,et al.  THE ONTOGENETIC NICHE AND SPECIES INTERACTIONS IN SIZE-STRUCTURED POPULATIONS , 1984 .

[17]  H. Newing Bushmeat hunting and management: implications of duiker ecology and interspecific competition , 2004, Biodiversity & Conservation.

[18]  BRINGING HOME THE BACON: A SPATIAL MODEL OF WILD PIG HUNTING IN SULAWESI, INDONESIA , 1997 .

[19]  George C. Williams,et al.  Adaptation and Natural Selection , 2018 .

[20]  J. Madsen Experimental refuges for migratory waterfowl in Danish wetlands. II. Tests of hunting disturbance effects , 1998 .

[21]  Henrik Brøseth,et al.  Hunting effort and game vulnerability studies on a small scale: a new technique combining radio‐telemetry, GPS and GIS , 2000 .

[22]  K. Redford,et al.  Wildlife Harvest in Logged Tropical Forests , 1999, Science.

[23]  C. Fitzgibbon,et al.  Subsistence Hunting in Arabuko-Sokoke Forest, Kenya, and Its Effects on Mammal Populations. , 1995, Conservation biology : the journal of the Society for Conservation Biology.

[24]  G. Mace,et al.  Conservation of Exploited Species , 2001 .

[25]  Predator avoidance, feeding and habitat use in the red-necked pademelon, Thylogale thetis, at rainforest edges , 2001 .

[26]  J. Mburu,et al.  Wildlife Conservation and Management in Kenya: Towards a Co-Management Approach , 2004 .

[27]  J. Rowcliffe,et al.  A model of human hunting impacts in multi‐prey communities , 2003 .

[28]  H. Njiforti Preferences and present demand for bushmeat in north Cameroon: some implications for wildlife conservation , 1996, Environmental Conservation.

[29]  Eugene S. Hunn,et al.  Resource Managers: North American and Australian Hunter-Gatherers , 1986 .

[30]  L. Mair A Preliminary Survey of the Turkana , 1952 .

[31]  Robert Barnett Food for thought : the utilization of wild meat in eastern and southern Africa , 2000 .

[32]  W. Leonard,et al.  Meat prices influence the consumption of wildlife by the Tsimane' Amerindians of Bolivia , 2002, Oryx.

[33]  Burt P. Kotler,et al.  Foraging Theory, Patch Use, and the Structure of a Negev Desert Granivore Community , 1994 .

[34]  S. L. Lima,et al.  Behavioral decisions made under the risk of predation: a review and prospectus , 1990 .

[35]  Georgina M. Mace,et al.  Exploitation as a conservation issue , 2001 .

[36]  R. Kock Wildlife utilization: use it or lose it — a Kenyan perspective , 1995, Biodiversity & Conservation.