First record of greater white‐toothed shrew <i>Crocidura russula</i> in Ireland

Tosh, David G.; Lusby, John; Montgomery, W. Ian; O’Halloran, John

doi:10.1111/j.1365-2907.2008.00130.x

Cited by 30 publications

(32 citation statements)

References 8 publications

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“…assuming June 1927 as the date of introduction). The point of introduction for the greater white-toothed shrew was unknown (Tosh et al 2008). Centroid analysis was performed using the Animal Movements extension to determine the centre of the greater whitetoothed shrew range, weighted by the density of all known records (i.e.…”

Section: Defining Invasive Species Rangesmentioning

confidence: 99%

“…Thus, a total of 165 9 10 km squares were surveyed in a grid straddling the last known boundary of the bank vole range established in 2002 (Telfer et al 2005a) whilst also including the last known boundary of the greater white-toothed shrew range established in 2008 (Tosh et al 2008;Fig. 1a).…”

Section: Defining Invasive Species Rangesmentioning

confidence: 99%

“…The greater white-toothed shrew Crocidura russula (Hermann 1780) was first discovered in Ireland during 2007 (Tosh et al 2008). It has a limited range within that of the bank vole and can occur at high abundance and both species are now common within the regurgitated pellets of birds of prey (Tosh et al 2008) indicating major changes have occurred in the small mammal community recently. Due to the size of its initial range it seems likely that the greater white-toothed shrew was present in Ireland for more than a decade prior to its discovery.…”

Section: Introductionmentioning

confidence: 97%

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‘Invasional meltdown’: evidence for unexpected consequences and cumulative impacts of multispecies invasions

2011

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Empirical support for 'invasional meltdown', where the presence of one invading species facilitates another and compounds negative impacts on indigenous species, is equivocal with few convincing studies. In Ireland, the bank vole was introduced 80 years ago and now occupies a third of the island. The greater white-toothed shrew arrived more recently within the invasive range of the bank vole. We surveyed the abundance of both invasive species and two indigenous species, the wood mouse and pygmy shrew, throughout their respective ranges. The negative effects of invasive on indigenous species were strong and cumulative bringing about species replacement. The greater white-toothed shrew, the second invader, had a positive and synergistic effect on the abundance of the bank vole, the first invader, but a negative and compounding effect on the abundance of the wood mouse and occurrence of the pygmy shrew. The gradual replacement of the wood mouse by the bank vole decreased with distance from the point of the bank vole's introduction whilst no pygmy shrews were captured where both invasive species were present. Such interactions may not be unique to invasions but characteristic of all multispecies communities. Small mammals are central in terrestrial food webs and compositional changes to this community in Ireland are likely to reverberate throughout the ecosystem. Vegetation composition and structure, invertebrate communities and the productivity of avian and mammalian predators are likely to be affected. Control of these invasive species may only be effected through landscape and habitat management.

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Section: Defining Invasive Species Rangesmentioning

confidence: 99%

Section: Defining Invasive Species Rangesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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‘Invasional meltdown’: evidence for unexpected consequences and cumulative impacts of multispecies invasions

2011

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“…Mammal species which are present across Europe but are absent from Ireland include the microtine voles (Harris & Yalden 2008). However, the southern third of the island has been subject to the accidental introduction of two invasive small mammals, the Bank Vole Myodes glareolus (Claassens & O'Gorman 1965) and Greater Whitetoothed Shrew Crocidura russula (Tosh et al 2008). Where their ranges overlap, the negative effects of these invasive mammals on indigenous small mammals are cumulative and ultimately bring about species replacement (Montgomery et al 2012).…”

mentioning

confidence: 99%

Diet diversity of the Common Buzzard (Buteo buteo) in a vole-less environment

Rooney

Montgomery

2013

Bird Study

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“…The greater white-toothed shrew ( Crocidura russula ) is an exotic species to Ireland first recorded in 2007[1], and now classified as an invasive mammalian species[2]. According to recent studies, this species is rapidly spreading with radial expansion estimates of approximately 5.5 km/yr[2].…”

Section: Introductionmentioning

confidence: 99%

Emerging Infectious Disease Implications of Invasive Mammalian Species: The Greater White-Toothed Shrew (Crocidura russula) Is Associated With a Novel Serovar of Pathogenic Leptospira in Ireland

et al. 2016

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The greater white-toothed shrew (Crocidura russula) is an invasive mammalian species that was first recorded in Ireland in 2007. It currently occupies an area of approximately 7,600 km2 on the island. C. russula is normally distributed in Northern Africa and Western Europe, and was previously absent from the British Isles. Whilst invasive species can have dramatic and rapid impacts on faunal and floral communities, they may also be carriers of pathogens facilitating disease transmission in potentially naive populations. Pathogenic leptospires are endemic in Ireland and a significant cause of human and animal disease. From 18 trapped C. russula, 3 isolates of Leptospira were cultured. However, typing of these isolates by standard serological reference methods was negative, and suggested an, as yet, unidentified serovar. Sequence analysis of 16S ribosomal RNA and secY indicated that these novel isolates belong to Leptospira alstonii, a unique pathogenic species of which only 7 isolates have been described to date. Earlier isolations were limited geographically to China, Japan and Malaysia, and this leptospiral species had not previously been cultured from mammals. Restriction enzyme analysis (REA) further confirms the novelty of these strains since no similar patterns were observed with a reference database of leptospires. As with other pathogenic Leptospira species, these isolates contain lipL32 and do not grow in the presence of 8-azagunaine; however no evidence of disease was apparent after experimental infection of hamsters. These isolates are genetically related to L. alstonii but have a novel REA pattern; they represent a new serovar which we designate as serovar Room22. This study demonstrates that invasive mammalian species act as bridge vectors of novel zoonotic pathogens such as Leptospira.

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First record of greater white‐toothed shrew Crocidura russula in Ireland

Cited by 30 publications

References 8 publications

‘Invasional meltdown’: evidence for unexpected consequences and cumulative impacts of multispecies invasions

‘Invasional meltdown’: evidence for unexpected consequences and cumulative impacts of multispecies invasions

Diet diversity of the Common Buzzard (Buteo buteo) in a vole-less environment

Emerging Infectious Disease Implications of Invasive Mammalian Species: The Greater White-Toothed Shrew (Crocidura russula) Is Associated With a Novel Serovar of Pathogenic Leptospira in Ireland

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