Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/9410
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dc.contributor.authorKnox, Kirsten Jen
dc.contributor.authorClarke, Peter Jen
dc.date.accessioned2012-02-07T12:00:00Z-
dc.date.issued2012-
dc.identifier.citationForest Ecology and Management, v.265, p. 47-54en
dc.identifier.issn1872-7042en
dc.identifier.issn0378-1127en
dc.identifier.urihttps://hdl.handle.net/1959.11/9410-
dc.description.abstractAlternative stable state theory is often used to explain the occurrence of flammable vegetation adjacent to less flammable vegetation where fire regimes mediate the shift between states. In 2002 an extreme landscape scale fire burnt extensive areas of forests in eastern Australia, including rainforests that are rarely severely burnt. This unique event allowed us to test long-held assumptions that predict landscape scale change after major disturbance. We tested three assumptions for detecting alternative community states; (1) that the scale of the event was large enough to remove canopy dominants, (2) fire feedbacks, both positive and negative are present, and (3) shifts in the floristic composition of communities are detected. We also examined whether high severity fires resulted in a community shift from less flammable to more flammable vegetation (e.g. from rainforest to wet sclerophyll vegetation), by examining floristic composition of vegetation communities (rainforest, wet sclerophyll forest, and dry sclerophyll forest) when burnt at different fire severities (high and low). Conversely, we tested whether there was a state shift from flammable to less flammable vegetation communities in sclerophyll forests long unburnt. In addition, we determined if there was any evidence that antecedent fire regimes and fire severity influenced flammability feedbacks. Severe fire caused significant ongoing disruption to forest canopies and fire effects were still detectable some 7 years after fire. Whilst some pyrogenic environmental feedbacks were detected from historic fire regimes, we found no shifts in the floristic composition or pyrogenic traits of forests burned at high severity. Medium-term (30 year) fire exclusion did not result in the sclerophyll forest becoming more pyrophobic although some fire-cued species senesced in the absence of fire. Contrary to expectation, we found no evidence that the floristic composition of less flammable vegetation burnt at high severity became more similar to flammable vegetation burnt at low severity or that were unburnt. Conversely, with more than 30 years of fire exclusion there was no evidence that the sclerophyllous communities became more floristically similar to rainforest. We have shown that species assemblages in warm-temperate rainforest were resilient to a catastrophic fire event and propose that these forests are unlikely to represent alternative community states driven by fire alone.en
dc.languageenen
dc.publisherElsevier BVen
dc.relation.ispartofForest Ecology and Managementen
dc.titleFire severity, feedback effects and resilience to alternative community states in forest assemblagesen
dc.typeJournal Articleen
dc.identifier.doi10.1016/j.foreco.2011.10.025en
dc.subject.keywordsCommunity Ecology (excl Invasive Species Ecology)en
dc.subject.keywordsConservation and Biodiversityen
dc.subject.keywordsTerrestrial Ecologyen
local.contributor.firstnameKirsten Jen
local.contributor.firstnamePeter Jen
local.subject.for2008060208 Terrestrial Ecologyen
local.subject.for2008050202 Conservation and Biodiversityen
local.subject.for2008060202 Community Ecology (excl Invasive Species Ecology)en
local.subject.seo2008960505 Ecosystem Assessment and Management of Forest and Woodlands Environmentsen
local.subject.seo2008960806 Forest and Woodlands Flora, Fauna and Biodiversityen
local.subject.seo2008961306 Remnant Vegetation and Protected Conservation Areas in Forest and Woodlands Environmentsen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailkknox2@une.edu.auen
local.profile.emailpclarke1@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20120117-140011en
local.publisher.placeNetherlandsen
local.format.startpage47en
local.format.endpage54en
local.identifier.scopusid82055200032en
local.peerreviewedYesen
local.identifier.volume265en
local.contributor.lastnameKnoxen
local.contributor.lastnameClarkeen
dc.identifier.staffune-id:kknox2en
dc.identifier.staffune-id:pclarke1en
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:9601en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleFire severity, feedback effects and resilience to alternative community states in forest assemblagesen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorKnox, Kirsten Jen
local.search.authorClarke, Peter Jen
local.uneassociationUnknownen
local.identifier.wosid000299981900006en
local.year.published2012en
local.subject.for2020310308 Terrestrial ecologyen
local.subject.for2020410401 Conservation and biodiversityen
local.subject.for2020310302 Community ecology (excl. invasive species ecology)en
local.subject.seo2020180301 Assessment and management of freshwater ecosystemsen
local.subject.seo2020180606 Terrestrial biodiversityen
local.subject.seo2020180604 Rehabilitation or conservation of terrestrial environmentsen
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