Individual study: The efficacy of collar-mounted devices in reducing the rate of predation of wildlife by domestic cats
Nelson S.H., Evans A.D. & Bradbury R.B. (2005) The efficacy of collar-mounted devices in reducing the rate of predation of wildlife by domestic cats. Applied Animal Behaviour Science, 94, 273-285
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Use collar-mounted devices to reduce predation by domestic animals
A replicated, randomized, controlled study in 2002–2003 in the UK (Nelson et al. 2005) found that fewer mammals were brought home by domestic cats Felis catus fitted with a bell or a sonic device on their collar than by cats wearing a plain collar, but the type of device did not matter. In 2002, fewer mammals were returned by cats equipped with a bell (120) or a ‘CatAlert™’ sonic device (111) than by cats wearing a plain collar (181). In 2003, the average number of mammals returned was similar for cats equipped with one bell (0.07 mammals/cat/day), two bells (0.07 mammals/cat/day) or a ‘CatAlert™’ sonic device (0.05 mammals/cat/day). Between April and August 2002, 68 cats were fitted with each of the three types of collar (a bell, a sonic device or a plain collar) for one month at a time, in a random order. Owners recorded live prey items and collected dead items for identification. Between May and September 2003, 67 cats were fitted with a collar with either one bell, two bells or a sonic device. Owners recorded all prey items, and identified them to species wherever possible. Sonic devices were set to ‘permanently on’.
(Summarised by Ricardo Rocha )