Landscape of Fear: How Cats and Dogs Suppress Rodent Pests in Selected Households in Ilorin, Nigeria
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Abstract
Rodents are major household pests that threaten food security, human health, and infrastructure in many urban and peri-urban communities. Reliance on chemical rodenticides is problematic due to environmental contamination, resistance, and risks to non-target species, underscoring the need for sustainable alternatives. This study applied the landscape of fear (LOF) framework to test whether domestic predators: cats (Felis catus) and dogs (Canis lupus familiaris), reduce rodent pests in households within Ilorin, Kwara State, Nigeria. Between March and June 2025, 110 households were surveyed and assigned to four predator categories: no predator (n = 24), dog present (n = 35), cat present (n = 49), and both cats and dogs present (n = 2). Sherman live traps were set for three consecutive nights per household, yielding 39 small mammals: Mus spp. (79.5%), Crocidura spp. (15.4%), and Rattus spp. (5.1%). There was a significant association between predator type (excluding the rare category with both predators) and capture outcome (≥1 vs. 0), [df =2, χ² = 62.43, p < 0.001], with a large effect size (Cramér’s V = 0.76). Capture rate was highest in predator-free households (96%) and lowest in cat households (2%), while dog households showed intermediate rates (43%). Species distributions were dominated by Mus spp., with Crocidura spp. restricted to predator-free households and Rattus spp. rare across all sites. These findings demonstrate that domestic predators, particularly cats, generate strong landscapes of fear that suppress rodent activity.
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References
Battersby, S. A. (2015). Rodents as carriers of disease. In A. P. Buckle and R. H. Smith (Eds.), Rodent pests and their control (2nd ed., pp. 81–100). Wallingford, UK: CABI.
Bedoya-Pérez, M. A., Smith, K. L., Kevin, R. C., Luo, J. L., Crowther, M. S., and McGregor, I. S. (2019). Parameters that affect fear responses in rodents and how to use them for management. Frontiers in Ecology and Evolution, 7, 136. https://doi.org/10.3389/fevo.2019.00136
Bleicher, S. S. (2017). The landscape of fear conceptual framework: Definition and review of current applications and misuses. PeerJ, 5, e3772. https://doi.org/10.7717/peerj.3772
Buckle, A. P., and Eason, C. T. (2015). Control methods: Chemical. In A. P. Buckle and R. H. Smith (Eds.), Rodent pests and their control (2nd ed., pp. 123–154). Wallingford, UK: CABI.
Bytheway, J. P., Carthey, A. J. R., and Banks, P. B. (2013). Risk vs. reward: How predators and prey respond to aging olfactory cues. Behavioral Ecology and Sociobiology, 67, 715–725. https://doi.org/10.1007/s00265-013-1494-9
Carthey, A. J. R., and Banks, P. B. (2015). Naiveté is not forever: Responses of a vulnerable native rodent to its long-term alien predators. Oikos, 124(5), 001–009. https://doi.org/10.1111/oik.02723
Davies, A. B., Tambling, C. J., Kerley, G. I., and Asner, G. P. (2016). Limited spatial response to direct predation risk by African herbivores following predator reintroduction. Ecology and Evolution, 6(16), 5728–5748. https://doi.org/10.1002/ece3.2312
Dielenberg, R. A., Hunt, G. E., and McGregor, I. S. (2001). "When a rat smells a cat": The distribution of Fos immunoreactivity in rat brain following exposure to a predatory odor. Neuroscience, 104(4), 1085–1097. https://doi.org/10.1016/S0306-4522(01)00150-6
Gaynor, K. M., Brown, J. S., Middleton, A. D., Power, M. E., and Brashares, J. S. (2019). Landscapes of fear: Spatial patterns of risk perception and response. Trends in Ecology and Evolution, 34(4), 355–368. https://doi.org/10.1016/j.tree.2019.01.004
Laundré, J. W., Hernández, L., and Altendorf, K. B. (2001). Wolves, elk, and bison: Reestablishing the “landscape of fear” in Yellowstone National Park, U.S.A. Canadian Journal of Zoology, 79(8), 1401–1409. https://doi.org/10.1139/z01-094
Lenth, B., Brennan, M., and Knight, R. L. (2006). The effects of dogs on wildlife communities. Final research report submitted to Boulder County Parks and Open Space. https://pitkincounty.com/DocumentCenter/View/1156/Dog-Impact-to-Wildlife-Study-PDF?bidId=
Loss, S. R., Will, T., and Marra, P. P. (2013). The impact of free-ranging domestic cats on wildlife of the United States. Nature Communications, 4, 1396. https://doi.org/10.1038/ncomms2380
Lund, M. (2015). Commensal rodents. In A. P. Buckle and R. H. Smith (Eds.), Rodent pests and their control (2nd ed., pp. 19–32). Wallingford, UK: CABI.
MacDonald, D. W. (Ed.). (2006). The encyclopedia of mammals (New ed.). Oxford: Oxford University Press.
McCleery, R., Monadjem, A., Conner, L. M., Austin, J. D., and Taylor, P. J. (2021). Methods for ecological research on terrestrial small mammals. Baltimore, MD: Johns Hopkins University Press.
Monadjem, A., Taylor, P. J., Denys, C., and Cotterill, F. P. D. (2015). Rodents of Sub-Saharan Africa: A biogeographic and taxonomic synthesis. Hamburg, Germany: PI Books GmbH.
Morin, D. J., Lesmeister, D. B., Nielsen, C. K., and Schauber, E. M. (2018). The truth about cats and dogs: Landscape composition and human occupation mediate the distribution and potential impact of non-native carnivores. Global Ecology and Conservation, 15, e00413. https://doi.org/10.1016/j.gecco.2018.e00413
Mori, E., Menchetti, M., Camporesi, A., Cavigioli, L., Tabarelli de Fatis, K., and Girardello, M. (2019). License to kill? Domestic cats affect a wide range of native fauna in a highly biodiverse Mediterranean country. Frontiers in Ecology and Evolution, 7, 477. https://doi.org/10.3389/fevo.2019.00477
Nguyen, Q. A. T., Rocha, A., Yamashita, Y., Chhor, R., Stadler, C., Pontrello, C., and Haga-Yamanaka, S. (2023). Hypothalamic representation of the imminence of predator threat detected by the vomeronasal organ in mice. eLife, 12, RP92982. https://doi.org/10.7554/eLife.92982.2
Smith, R. H., and Meyer, A. P. (2015). Rodent control methods: Non-chemical and non-lethal chemical, with special reference to food stores. In A. P. Buckle and R. H. Smith (Eds.), Rodent pests and their control (2nd ed., pp. 101–122). Wallingford, UK: CABI.
Soleng, A., Edgar, K. S., von Krogh, A., and Seljetun, K. O. (2022). Suspected rodenticide exposures in humans and domestic animals: Data from inquiries to the Norwegian Poison Information Centre, 2005–2020. PLoS ONE, 17(12), e0278642. https://doi.org/10.1371/journal.pone.0278642
Stuart, A. M., Jacob, J., Awoniyi, A. M., Costa, F., Bosma, L., Meheretu, Y., Htwe, N. M., Williamson, S., Eddleston, M., Dalecky, A., and Willis, S. (2025). Alternative domestic rodent pest management approaches to address the hazardous use of metal phosphides in low- and middle-income countries. Journal of Pest Science, 98(1), 89–111. https://doi.org/10.1007/s10340-024-01825-7
Suraci, J. P., Clinchy, M., Dill, L. M., Roberts, D., and Zanette, L. Y. (2016). Fear of large carnivores causes a trophic cascade. Nature Communications, 7, 10698. https://doi.org/10.1038/ncomms10698