One salient method of poaching is the use of wire snares to kill wild animals. The study sought to determine seasonal trend and distribution of wire snaring in Sengwa Wildlife Research Area (SWRA) and predict possible seasonal hotspots areas. Presence-only data from law enforcement patrols done by field rangers between January, 2018 and December, 2021 was used. Descriptive statistics was used to establish trend in wire-snare occurrence from 2018 to 2021. Kruskal Wallis test was performed to determine if there was significance difference on number of wire snares removed in different season. Kernel Density Estimation (KDE) analysed in R was used to highlight the relative probability of snaring hotspot based on wire snare GPS coordinates and number of snares removed at the site in ArcMap 10.3. Total effort from January, 2018 to December, 2021 was 4767 patrol sessions, with 2314 wire-snares recovered. Of the snares recorded, 14.5% (n = 335) were recovered in wet season, 29. 4% (n = 680) in cool dry season while 56.1% (n = 1299) in hot dry season. Of the removed wire-snares, 1573 were set targeting small animals, 602 for medium size animals while 139 were meant for large animals. There was no significant difference on number of wire snares removed in wet, cool dry and hot dry season (Z-Value = 4.654, p = 0.086). Based on present only data collected for this study, the results showed seasonal variation of hotspot areas. This study recommends that well-designed scientific inquiry performed in concert with anti-poaching team has the potential to substantially decrease the threat of snaring in SWRA.
Cite this paper
Mahakata, I. (2022). Seasonal Trend and Distribution of Wire-Snaring Activities and Possible Hotspots in the Sengwa Wildlife Area (SWRA), Zimbabwe. Open Access Library Journal, 9, e9287. doi: http://dx.doi.org/10.4236/oalib.1109287.
Rauset, G.R., Andrén, H., Swenson, J.E., Samelius, G., Segerström, P., Zedrosser, A. and Persson, J. (2016) National Parks in Northern Sweden as Refuges for Illegal Killing of Large Carnivores. Conservation Letters, 9, 334-341.
https://doi.org/10.1111/conl.12226
Tranquilli, S., Abedi-Lartey, M., Amsini, F., Arranz, L., Asamoah, A., Babafemi, O. and Kuehl, H. (2012) Lack of Conservation Effort Rapidly Increases African Great Ape Extinction Risk. Conservation Letters, 5, 48-55.
https://doi.org/10.1111/j.1755-263X.2011.00211.x
Harrison, R.D. (2011) Emptying the Forest: Hunting and the Extirpation of Wildlife from Tropical Nature Reserves. BioScience, 61, 919-924.
https://doi.org/10.1525/bio.2011.61.11.11
Bruner, A.G., Gullison, R.E., Rice, R.E., da Fonseca and Gustavo, A.B. (2001) Effectiveness of Parks in Protecting Tropical Biodiversity. Science, 291, 125-128.
https://doi.org/10.1126/science.291.5501.125
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.
https://doi.org/10.1111/j.1365-2907.2009.00149.x
Becker, M., McRobb, R., Watson, F., Droge, E., Kanyembo, B., Murdoch, J. and Kakumbi, C. (2013) Evaluating Wire-Snare Poaching Trends and the Impacts of By-Catch on Elephants and Large Carnivores. Biological Conservation, 158, 26-36.
https://doi.org/10.1016/j.biocon.2012.08.017
Hilborn, R., Arcese, P., Borner, M., Hando, J., Hopcraft, G., Loibooki, M., Mduma, S. and Sinclair, A.R.E. (2006) Effective Enforcement in a Conservation Area. Science, 314, 1266. https://doi.org/10.1126/science.1132780
Keane, A., Jones, J.P.G., Edward-Jones, G. and Milner-Gulland, E.J. (2008) The Sleeping Policeman: Understanding Issues of Enforcement and Compliance in Conservation. Animal Conservation, 11, 75-82.
https://doi.org/10.1111/j.1469-1795.2008.00170.x
Critchlow, R., Plumptre, A.J. andira, B., Nsubuga, M., Driciru, M., Rwetsiba, A. and Beale, C.M. (2017) Improving Law Enforcement Effectiveness and Efficiency in Protected Areas Using Ranger-Collected Monitoring Data. Conservation Letters, 10, 572-580. https://doi.org/10.1111/conl.12288
Hötte, M.H.H., Kolodin, I.A., Bereznuk, S.L., Slaght, J.C., Kerley, L.L., Soutyrina, S.V. and Miquelle, D.G. (2016) Indicators of Success for Smart Law Enforcement in Protected Areas: A Case Study for Russian Amur Tiger (Panthera tigris altaica) Reserves. Integrative Zoology, 11, 2-15. https://doi.org/10.1111/1749-4877.12168
Tafangenyasha, C., Ngorima, P., Musungwa, S. and Kavhu, B. (2018) Modifications of the Flora Zambeziaca in the Zambezi Basin by Environmental Antecedent Factors: Termites, Fire and Elephant. International Journal of Environmental Sciences & Natural Resources, 12, Article ID: 555840.
Mahakata, I. and Mapaure, I. (2021) An Analysis of the factors Contributing to Elephant Population Fluctuations in SWRA Using Ranger-Based Knowledge and Perceptions. Ecology & Conservation Science, 1, Article ID: 555571.
Watson, F.G.R, Becker, M., McRobb, R. and Kanyembo, B. (2013) Spatial Patterns of Wire-Snare Poaching: Implications for Community Conservation in Buffer Zones around National Parks. Biological Conservation, 168, 1-9.
https://doi.org/10.1016/j.biocon.2013.09.003
Tumusiime, D.M., Eilu, G., Tweheyo, M. and Babweteera, F. (2010) Wildlife Snaring in Budongo Forest Reserve, Uganda. Human Dimensions of Wildlife, 15, 129-144.
https://doi.org/10.1080/10871200903493899
Lindsey, P.A., Romañach, S.S., Matema, S., Matema, C., Mupamhadzi, I. and Muvengwi, J. (2011) Dynamics and Underlying Causes of Illegal Bushmeat Trade in Zimbabwe. Oryx, 45, 84-95. https://doi.org/10.1017/S0030605310001274
Noss, A.J. (1998) The Impacts of Cable Snare Hunting on Wildlife Population in the Forests of the Central African Republic. Conservation Biology, 12, 390-398.
https://doi.org/10.1046/j.1523-1739.1998.96027.x
Johnstone, K., Kimanzi, R.A., et al. (2015) Spatial Distribution of Snares in Ruma National Park, Kenya, with Implications for Management of the Roan Antelope Hippotragus equinus langheldi and Other Wildlife. Oryx, 49, 295-302.
https://doi.org/10.1017/S0030605313000689
Leigh, K.A. (2005) The Ecology and Conservation Biology of the Endangered African Wild Dog (Lycaon pictus), in the Lower Zambezi, Zambia. PhD Thesis, University of Sydney, Sydney.
Pole, A. (1999) The Behaviour and Ecology of African Wild Dogs, Lycaon pictus, in an Environment with Reduced Competitor Density. PhD Thesis, University of Aberdeen, Aberdeen.
Lindsey, P.A., Romañach, S.S., Tambling, C.J., Chartier, K. and Groom, R. (2011) Ecological and Financial Impacts of Illegal Bushmeat Trade in Zimbabwe. Oryx, 45, 96-111. https://doi.org/10.1017/S0030605310000153