The effect of an experimental reduction in predation pressure on the breeding success and population density of grey partridges Perdix perdix
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Published source details
Tapper S.C., Potts G.R. & Brockless M.H. (1996) The effect of an experimental reduction in predation pressure on the breeding success and population density of grey partridges Perdix perdix. Journal of Applied Ecology, 33, 965-978.
Published source details Tapper S.C., Potts G.R. & Brockless M.H. (1996) The effect of an experimental reduction in predation pressure on the breeding success and population density of grey partridges Perdix perdix. Journal of Applied Ecology, 33, 965-978.
Actions
This study is summarised as evidence for the following.
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Control predatory mammals and birds (foxes, crows, stoats and weasels) Action Link |
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Control predators not on islands for gamebirds Action Link |
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Control predatory mammals and birds (foxes, crows, stoats and weasels)
A replicated, controlled study at two farmland and woodland sites in southern England between 1985 and 1990 (Tapper et al. 1996) found that grey partridge Perdix perdix breeding success and brood sizes were significantly higher when predators were controlled, compared to years without removal. This led to August partridge numbers being 75% higher and breeding numbers the next year being 36% higher. Over three years this led to breeding densities being 2.6 times greater when predators were removed. Predators removed through trapping and shooting were predominantly red foxes Vulpes vulpes, carrion crows Corvus corone and black-billed magpies Pica pica.
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Control predators not on islands for gamebirds
A replicated, controlled study at two farmland and woodland sites in southern England between 1985 and 1990 (Tapper et al. 1996) found that grey partridge Perdix perdix breeding success and brood sizes were significantly higher when predators were controlled, compared to years without removal. This led to August partridge numbers being 75% higher and breeding numbers the next year being 36% higher. Over three years this led to breeding densities that were 2.6 times greater when predators were removed. Predators removed through trapping and shooting were predominantly red foxes Vulpes vulpes, carrion crows Corvus corone and black-billed magpies Pica pica.
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