Search results for "Microsite"

showing 3 items of 3 documents

Effects of traditional coppice practices and microsite conditions on tree health in a European beech forest at its southernmost range

2016

Abstract: European beech (Fagus sylvatica) grows at the southern limit of its range in the mountain-Mediterranean vegetation belt up to the timberline. The southernmost beech forests of Sicily (southern Italy) show peculiar ecological, structural and silvicultural characteristics, growing in fragmented and isolated stands near the timberline and in topographically marginal unfavorable habitats. Past silvicultural practices increased the heterogeneity of stand structure at these sites. We compared stand structural characteristics and tree health in coppice-cut and control beech stands with respect to the local topographic gradient (bottom, slope and ridge) and canopy cover (clearing/border v…

0106 biological sciencesSettore AGR/05 - Assestamento Forestale E SelvicolturaMadonie MtsForest managementMarginal Beech SitesSite-specific Ecology010603 evolutionary biology01 natural sciencesCoppicingCoppice-cuts; Cover fragmentation; Madonie mts; Marginal beech sites; Sicily; Silviculture; Site-specific ecology; Topographic gradient; Tree damage; Forestry; Ecology; Nature and Landscape ConservationFagus sylvaticaTopographic GradientCover Fragmentationlcsh:ForestryBeechSilvicultureSicilySilvicultureMarginal beech siteNature and Landscape ConservationbiologyEcologyAgroforestryForestryMicrositeVegetationCoppice-cutbiology.organism_classificationTree DamageMadonie mtGeographylcsh:SD1-669.5Tree healthCoppice-cuts010606 plant biology & botanyiForest - Biogeosciences and Forestry
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Evidences of adaptive traits to rocky substrates undermine paradigm of habitat preference of the Mediterranean seagrass Posidonia oceanica

2015

AbstractPosidonia oceanica meadows are acknowledged as one of the most valuable ecosystems of the Mediterranean Sea. P. oceanica has been historically described as a species typically growing on mobile substrates whose development requires precursor communities. Here we document for the first time the extensive presence of sticky hairs covering P. oceanica seedling roots. Adhesive root hairs allow the seedlings to firmly anchor to rocky substrates with anchorage strength values up to 5.23 N, regardless of the presence of algal cover and to colonise bare rock without the need for precursor assemblages to facilitate settlement. Adhesive root hairs are a morphological trait common on plants li…

Phyllospadix scouleriMultidisciplinaryAlismatalesbiologyEcologySettore BIO/02 - Botanica SistematicaAdaptation BiologicalMicrositeEnvironmentbiology.organism_classificationArticleColonisationAlismatidaeSeagrassPhenotypeQuantitative Trait HeritablePropaguleHabitatSeedlingsPosidonia oceanicaBotanyMediterranean SeaMediterranean Sea Posidonia oceanica root hairs substrates seedlingsEcosystemScientific Reports
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Site quality evaluation by classification tree: an application to cork quality in Sardinia

2005

Cork harvesting and stopper production represent a major forest industry in Sardinia (Italy). The target of the present investigation was to evaluate the ‘‘classification tree’’ as a tool to discover possible relationships between microsite characteristics and cork quality. Seven main cork oak (Quercus suber) producing areas have been identified in Sardinia, for a total of more than 122,000 ha. Sixty-three sample trees, distributed among different geographical locations and microsite conditions, were selected. A soil profile near each sample tree was described, soil samples were collected and analysed. After debarking, cork quality of each sample tree was graded by an independent panel of e…

biologySoil testEcologyDecision tree learningSite classification and evaluationLogistic regressionForestryClassification Tree MethodForestryClassification treePlant ScienceQuercus suberMicrositeCorkengineering.materialbiology.organism_classificationTree (data structure)Quercus suberCork qualityengineeringSoil horizonMathematics
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