How important are seabirds in the diet of black rats on islands with a superpredator?

Hervías, S.; Ceia, Filipe R.; Pipa, Tania; Nogales, Manuel; Ybáñez, R. Ruiz de; Ramos, Jaime A.

doi:10.1016/j.zool.2013.12.003

Cited by 9 publications

(9 citation statements)

References 41 publications

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“…Dietary analysis can provide important information on the ecological niche of a predator, the level of invasiveness of a species and its potential severity of impact. Stomach content analysis has been used to describe the diets of a number of vertebrate species, such as rodents, frogs and possums (Trichosurus vulpecula) (Sweetapple et al 2013;Hervías et al 2014;Courant et al 2017). In hedgehogs (Erinaceus europaeus), stomach content analysis has been used to determine: the composition of the diet in different habitats; the presence of endangered species in the diet; and dietary overlap with native species (Hendra 1999;Jeffries 2011).…”

Section: Introductionmentioning

confidence: 99%

Snacks in the city: the diet of hedgehogs in Auckland urban forest fragments

Nottingham¹,

Glen²,

Stanley³

2019

NZJE

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Urbanisation causes fragmentation of natural habitats, which results in loss of biodiversity, while promoting an environment that can facilitate invasive species. However, forest fragments are an important refuge for native species and therefore understanding and mitigating threats in fragments is critical. While the impacts of some mammalian pest species, such as rats (Rattus spp.), are relatively well-known in New Zealand, hedgehogs (Erinaceus europaeus) are relatively understudied invasive mammals, and their impacts in urban fragments are unknown. Hedgehogs are abundant and widespread in New Zealand, with a relatively broad diet that can include invertebrates, lizards and bird eggs. We examined the stomach contents of 44 hedgehogs collected from 10 forest fragments in urban Auckland, New Zealand. Hedgehogs were feeding predominantly on invertebrates (Coleoptera, found in 53% of stomachs; earthworms, 43%; slugs, 23%), but also weta (13%), giant centipedes (5%), birds (7%) and lizards (2%) at lower frequencies. Hedgehogs are likely to be affecting community composition primarily through predation of invertebrates, with unknown effects on their populations.

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Section: Introductionmentioning

confidence: 99%

Snacks in the city: the diet of hedgehogs in Auckland urban forest fragments

Nottingham¹,

Glen²,

Stanley³

2019

NZJE

View full text Add to dashboard Cite

show abstract

“…Also, management plans should be implemented to reduce their current impact. Potential measures to control cat populations on Corvo are given in Hervías et al (2014a).…”

Section: Discussionmentioning

confidence: 99%

“…The population estimate for each introduced species is presented in Table 2. Black rats and house mice prey upon plant species and invertebrates, and also black rats prey upon passerines and seabirds (Hervías et al, 2014a). Both rodent species are more abundant at low elevation (< 250 m) near Vila do Corvo.…”

Section: Ecological Impactsmentioning

confidence: 99%

“…As in other islands, cats play indeed a double role on Corvo because as top predators they help controlling the populations of rodents (Hervías et al, 2014a). Because there is a trophic relation between cats and rodents the socio-economic impact of these species would be more difficult to estimate than for goats and sheep.…”

Section: How Well Documented Are the Impacts Of Invasive Mammals In Tmentioning

confidence: 99%

“…Within different IAS, mammals are among the most ecologically damaging on islands, especially when their ecological equivalents are naturally lacking in the host ecosystem (Clout and Veitch, 2002). Impacts of invasive mammals on native biodiversity not only include direct effects such as predation and competition but also disrupted patterns of nutrient flows and trophic cascades due to the ecological interactions between such mammals and the native biota (Russell et al, 2009;Hervías et al, 2014a).…”

Section: Introductionmentioning

confidence: 99%

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