Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/109
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dc.contributor.authorClarke, PJen
dc.date.accessioned2008-05-02T16:28:00Z
dc.date.issued2004en
dc.identifier.citationJournal of Ecology, 92(2), p. 203-213en
dc.identifier.issn0022-0477en
dc.identifier.urihttps://hdl.handle.net/1959.11/109en
dc.description.abstract1. Few species of Indo-pacific mangroves co-occur at spatial scales of canopy gaps despite environmental heterogeneity and a flora that has varied physiological and morphological traits, but experiments on why such communities are species poor are uncommon.2. Lack of habitat partitioning, in concert with competitive exclusion, may explain low species richness at canopy gap scales. This study examined whether mangrove recruitment differs among species with respect to the effect of forest gap size, ground disturbance, position along an intertidal gradient and canopy membership.3. The canopy of a tropical mangrove forest in northern Australia was experimentally manipulated to create two gap sizes (50 m2 and 225 m2) in low and high intertidal forests with or without sediment disturbance. Propagules of six species, from three mangrove families, were sown into treatments and their predation, establishment, growth and survival measured for 5 years.4. All species established, and five survived, in canopy gaps in both high and low intertidal positions. Interspecific difference in establishment, growth and survival of seedlings in two intertidal positions were not closely matched to canopy membership and hence this does not explain zonation.5. No seedlings survived under the canopy and there was little evidence for shade-tolerant species. The interactions between canopy treatments and sediment disturbance that would have indicated gap partitioning were not detected. Seedling growth and survival was enhanced in large canopy gaps but there were no growth differences among species that matched canopy membership of plots.6. Most species appear to be able to recruit in canopy gaps if there is no dispersal limitation. Rather, the range of species available to fill gaps is limited because predation of propagules advantages species that are from the adjacent canopy. Lack of partitioning of resources within gaps by species may result in the exclusion of competitors that are not canopy members, further reducing coexistence.en
dc.languageenen
dc.publisherBlackwell Publishingen
dc.relation.ispartofJournal of Ecologyen
dc.titleEffects of experimental canopy gaps on mangrove recruitment: lack of habitat partitioning may explain stand dominanceen
dc.typeJournal Articleen
dc.identifier.doi10.1111/j.0022-0477.2004.00861.xen
dc.subject.keywordsPlant Developmental and Reproductive Biologyen
local.contributor.firstnamePJen
local.subject.for2008060703 Plant Developmental and Reproductive Biologyen
local.subject.seo770703 Living resources (flora and fauna)en
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailpclarke1@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordpes:1535en
local.publisher.placeLondonen
local.format.startpage203en
local.format.endpage213en
local.peerreviewedYesen
local.identifier.volume92en
local.identifier.issue2en
local.title.subtitlelack of habitat partitioning may explain stand dominanceen
local.contributor.lastnameClarkeen
dc.identifier.staffune-id:pclarke1en
local.profile.roleauthoren
local.identifier.unepublicationidune:108en
dc.identifier.academiclevelAcademicen
local.title.maintitleEffects of experimental canopy gaps on mangrove recruitmenten
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.description.statisticsepubsVisitors: 50<br />Views: 51<br />Downloads: 0en
local.search.authorClarke, PJen
local.uneassociationUnknownen
local.year.published2004en
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