Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/3692
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dc.contributor.authorClarke, Peter Johnen
dc.contributor.authorDorji, Kinzangen
dc.date.accessioned2009-12-08T15:18:00Z
dc.date.issued2008en
dc.identifier.citationEcology, 89(7), p. 1850-1858en
dc.identifier.issn1939-9170en
dc.identifier.issn0012-9658en
dc.identifier.urihttps://hdl.handle.net/1959.11/3692en
dc.description.abstractTrade-offs in allocation to resprouting vs. seedling regeneration in plants are predicted to occur along fire disturbance gradients. Increased resprouting ability should be generally favored in plant communities with a high probability of crown fire return. Hence, communities dominated by resprouters are predicted to have smaller seed banks than those dominated by species killed by fire. We tested whether there were trait shifts in resprouting ability among growth forms (short-lived herbaceous vs. ground-dwelling perennials vs. shrubs) and among communities (rocky outcrop vs. sclerophyll forest) with contrasting probabilities of crown fire return. Resprouting was more common in ground-dwelling perennials and in the sclerophyll forest community with a high probability of crown fire. Soil seed banks were sampled in rocky outcrop and sclerophyll forest communities in recently burned (18 months) and long-since-burned (12 years) locations at interspersed replicated sites. Collected seed banks were treated with orthogonal treatments of fire stimuli or no stimuli, and seedling emergence was measured in controlled conditions. Seed bank composition reflected the pattern of extant vegetation, with resprouting species being more common in the community with a higher probability of crown fire. Overall, however, resprouting species were poorly represented in the seed bank compared to those species killed by fire. Predicted shifts in allocation to seed production were strongly manifested in community seed banks across the disturbance gradient. Fewer species, seedlings, and seedlings per adult emerged from seed banks in the sclerophyll forest. This suggests that the dominance of resprouting species influences recruitment at the community scale. Community patterns in the seed bank also reflected predicted trade-offs with plant size and growth rate. Short-lived species that are killed by fire dominated the seed bank on rocky outcrops, while longer-lived resprouting species were found in low abundance. Life history trade-offs in persistence and regeneration strongly contribute to coexistence patterns between and within communities with contrasting probabilities of fire return.en
dc.languageenen
dc.publisherEcological Society of Americaen
dc.relation.ispartofEcologyen
dc.titleAre Trade-Offs In Plant Resprouting Manifested In Community Seed Banks?en
dc.typeJournal Articleen
dc.identifier.doi10.1890/07-0704.1en
dc.subject.keywordsTerrestrial Ecologyen
local.contributor.firstnamePeter Johnen
local.contributor.firstnameKinzangen
local.subject.for2008060208 Terrestrial Ecologyen
local.subject.seo2008960804 Farmland, Arable Cropland and Permanent Cropland Flora, Fauna and Biodiversityen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailpclarke1@une.edu.auen
local.profile.emailkdorji@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordpes:6451en
local.publisher.placeWashington, DC, USAen
local.format.startpage1850en
local.format.endpage1858en
local.peerreviewedYesen
local.identifier.volume89en
local.identifier.issue7en
local.contributor.lastnameClarkeen
local.contributor.lastnameDorjien
dc.identifier.staffune-id:pclarke1en
dc.identifier.staffune-id:kdorjien
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:3783en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleAre Trade-Offs In Plant Resprouting Manifested In Community Seed Banks?en
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.description.statisticsepubsVisitors: 69<br />Views: 69<br />Downloads: 0en
local.search.authorClarke, Peter Johnen
local.search.authorDorji, Kinzangen
local.uneassociationUnknownen
local.year.published2008en
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