Search results for " distribution patterns"

showing 3 items of 3 documents

Large- and small-mammal distribution patterns and chronostratigraphic boundaries from the Late Pliocene to the Middle Pleistocene of the Italian peni…

2007

Abstract Over the last 50 years the studies on terrestrial mammals of the Italian peninsula have provided a large volume of data and a more detailed knowledge of faunal events during the Late Pliocene and Quaternary. Moreover geological, sedimentological, palynological and magnetostratigraphical investigations on the Pliocene–Pleistocene continental sedimentary basins have yielded the possibility of a detailed calibration of the faunal successions. Thus, palaeontologists have been able to reconstruct faunal sequences and to propose biochronological scales based on large and small mammals, respectively. In the present contribution an integration of the two biochronological scales is proposed…

Palynologygeographygeography.geographical_feature_categoryPleistocenechronostratigraphical boundariesSmall mammalSedimentary basinIntegrated approachLate Pllioce-Middle PleistoceneLarge and small mammals; distribution patterns; chronostratigraphical boundaries; Late Pllioce-Middle Pleistocene; Italian peninsuladistribution patternsSequence (geology)PaleontologyPeninsulaPleistocene mammals bio-chronology ItalyQuaternaryGeologyLarge and small mammalsItalian peninsulaEarth-Surface Processes
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Downy oak woods of Italy: phytogeographical remarks on a controversial taxonomic and ecological issue

2011

The importance of downy oak as an integral component of the "submediterranean" woods has been underscored in many studies. Nevertheless, terms like "submediterranean" and "downy oak" are some of the most faintly understood concepts in the European phytogeographical and taxonomical research. Downy oak is well known to be a problematic taxon: the name "Quercus pubescens" (= Q. humilis) piles together populations characterized by an increasing phenotypic and genomic polymorphism along north-south gradients, which is commonly explained as the result of a "founder effect" given by a relatively fast post-glacial re-colonization of the northern stands through rare long-distance dispersal events. O…

Settore BIO/03 - Botanica Ambientale E ApplicataDowny oak syntaxonomy phytogeography variability distribution patterns
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Downy-oak woods of Italy: phytogeographical remarks on a controversial taxonomic and ecologic issue

2014

The importance of downy oak as an integral component of the "submediterranean" woods has been underscored by many studies. Nevertheless, terms like "submediterranean" and "downy oak" are some of the most poorly understood concepts in European phytogeographic and taxonomic research. Downy oak is well known to be a problematic taxon. The name "Quercus pubescens" (= Q. humilis) combines populations characterized by increasing phenotypic and genomic polymorphisms along north-south gradients, which is explained as the result of a "founder effect" produced by a relatively fast post-glacial re-colonization of the northern areas through rare long-distance dispersal events. On the other hand, polymo…

GeographyTaxonbiologyEcologyeducationBotanyBiological dispersalQuercus pubescensdowny oak ecological gradients syntaxonomy phytogeography coenologic variability distribution patterns human impactPhytogeographybiology.organism_classificationDowny oak Ecological gradients Syntaxonomy Phytogeography Coenologic variability Distribution patterns Human impactFounder effect
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