Show simple item record

dc.contributor.authorBartlett, Jesamine
dc.contributor.authorConvey, Peter
dc.contributor.authorNewsham, Kevin K.
dc.contributor.authorHayward, S.A.L.
dc.coverage.spatialSigny Island, Antarcticen_US
dc.identifier.citationSoil Biology and Biochemistry. 2023, 180 .en_US
dc.description.abstractThe nutrient-poor soils of Antarctica are sensitive to change. Recent increases in the number of anthropogenic introductions mean that understanding the impact of non-native species on Antarctic soils is pertinent, and essential for developing future risk assessments and management strategies. Through comparative baseline assessments of vegetation, microbes, soil chemistry, substrate composition and micro-arthropod abundance, this study explored if there are detectable terrestrial ecosystem impacts resulting from the introduction of the chironomid midge Eretmoptera murphyi to Signy Island in maritime Antarctica. The key finding was that E. murphyi is the likely driver of an increase in inorganic nitrogen availability within the nutrient-poor soils in which it occurs. When compared with the levels of inorganic nitrogen present in soils influenced by native vertebrate wildlife aggregations, the increase in local nitrate availability associated with E. murphyi was similar to that caused by deposits from seals and giant petrel colonies. Overall, available nitrate has increased by threeto five-fold in soils colonised by the midge, relative to undisturbed soils. This may ultimately impact rates of decomposition as well as the native plant and micro-arthropod communities of Signy Island. Antarctica Invasion impacts Chironomidae Signy Island Soil nitrogenen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectInvasion impactsen_US
dc.subjectSigny Islanden_US
dc.subjectSoil nitrogenen_US
dc.titleEcological consequences of a single introduced species to the Antarctic: terrestrial impacts of the invasive midge Eretmoptera murphyi on Signy Islanden_US
dc.title.alternativeEcological consequences of a single introduced species to the Antarctic: terrestrial impacts of the invasive midge Eretmoptera murphyi on Signy Islanden_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© 2023 The Authorsen_US
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480en_US
dc.subject.nsiVDP::Zoology and botany: 480en_US
dc.source.journalSoil Biology and Biochemistryen_US
dc.relation.projectNorges forskningsråd: 323304en_US
dc.relation.projectAndre: e Natural Environment Research Council (NERC)en_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal