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Here are proposed different studies carried out by the Laboratorio di Archeologia e Storia Ambientale of Genoa University through the use of a geographical historical microanalitical approach to documentary, field and sedimentary sources. The main aim is the reconstruction of different agri-silvo-pastoral practices and of environmental processes connected to the management of mountain resources wi

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Abstract in French Afin d’évaluer l’importance relative de la reproduction sexuelle et végétative dans les populations d’une plante de prairie, l’Hieracium pilosella L., les auteurs ont utilisé des marqueurs allozymiques permettant d’en identifier les clones. Les études conduites aux champs, sur les populations d’espèces de plantes clonales, ont souvent fait état de recrutement absent ou négligeabAllozyme markers were used to fingerprint clones of the grassland plant Hieracium pilosella and, by inference, to estimate the relative importance of sexual and vegetative reproduction in a population. Field studies in populations of clonal plant species have often reported negligible or absent recruitment from seed. In contrast, studies of genetic markers have found substantial clonal diversity i