2006
DOI: 10.1111/j.1469-7998.2006.00204.x
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Factors affecting the abundance of introduced hedgehogs (Erinaceus europaeus) to the Hebridean island of South Uist in the absence of natural predators and implications for nesting birds

Abstract: Introduced hedgehogs Erinaceus europaeus are a known threat to ground-nesting birds on many islands. Spring hedgehog density and sex ratio were measured over a 5-year period at four plots on the 315 km 2 Hebridean island of South Uist. The mean instantaneous density on the sandy-soiled machair plots (31.8 hedgehogs km À2 , SE 2.95) was over twice that on the peaty-soiled blackland plots (15.4 hedgehogs km À2 , SE 3.46), a difference reflecting the amount of preferred foraging habitat (mainly pasture). Plot pop… Show more

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Cited by 14 publications
(22 citation statements)
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“…By contrast, Reeve (1981), Morris (1988) and Doncaster (1994) estimated densities from sampling conducted only in suitable areas where hedgehogs were gathered. As pointed out by Jackson (2007), it is likely that these estimates are biased towards too high densities. This potential methodological bias would be all the more pronounced in urban areas where wildlife populations are usually characterised by a clumped dispersion pattern (Adams et al, 2006;Prange et al, 2004).…”
Section: Discussionmentioning
confidence: 96%
See 1 more Smart Citation
“…By contrast, Reeve (1981), Morris (1988) and Doncaster (1994) estimated densities from sampling conducted only in suitable areas where hedgehogs were gathered. As pointed out by Jackson (2007), it is likely that these estimates are biased towards too high densities. This potential methodological bias would be all the more pronounced in urban areas where wildlife populations are usually characterised by a clumped dispersion pattern (Adams et al, 2006;Prange et al, 2004).…”
Section: Discussionmentioning
confidence: 96%
“…Like Berthoud (1982), we sampled the different habitats throughout the study area without discarding areas unsuitable to hedgehogs. Jackson (2007) used a similar sampling method on the Hebridean island of South Uist. By contrast, Reeve (1981), Morris (1988) and Doncaster (1994) estimated densities from sampling conducted only in suitable areas where hedgehogs were gathered.…”
Section: Discussionmentioning
confidence: 99%
“…Hedgehogs of other species (e.g., Erinaceus europaeus) have been identified as a conservation threat in different areas because they consume large quantities of eggs of threatened ground-nesting birds, endemic invertebrates and lizards (Jackson and Green 2000;Jackson 2001Jackson , 2007Sanders and Maloney 2002;Jackson et al 2004). They also predate on nests of the quail (Coturnix coturnix) and the red ledged partridge (Alectoris rufa) (Herranz 2000;Castilla and Rodríguez 2002).…”
Section: Introductionmentioning
confidence: 98%
“…Snipe also declined in the southern zone but showed no change in the northern zone. Declines of Dunlin, Snipe, Redshank and Lapwing in the southern zone have been attributed largely to predation of clutches by Hedgehogs Erinaceus europaeus (Jackson & Green 2000, Jackson et al 2004, which were introduced to South Uist in 1974 (Jackson 2007). By the mid-1990s, they occurred throughout the machair and blackland of the southern zone but only just penetrated the southern end of North Uist (Jackson et al .…”
mentioning
confidence: 99%