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Epiphytic lichens of woodland habitats in the lower Ticino river valley and in the “Bosco Siro Negri” Integral Nature State Reserve (NW Italy)
Full text linkEpiphytic lichens were surveyed in the “Bosco Siro Negri” Integral Nature State
Reserve (province of Pavia, Lombardy, NW Italy), which hosts a well-preserved fragment of
oak-elm floodplain forest (Natura 2000 Habitat 91F0). The core woodland fragment hosted
only four species on the tree boles, i.e. Lepraria finkii plus the forest specialists Coenogonium
pineti, Diarthonis spadicea, and Opegrapha vermicellifera. An additional eight nitro- and
photophytic species were recorded on the highest twigs of the canopy. The whole Reserve,
including the neighbouring degraded woodlands and poplar plantations, hosted 27 epiphytic
lichen taxa. The lower Ticino River valley between Vigevano and Pavia, in which the Reserve
is located, was surveyed for epiphytic lichens in an additional 45 sites, including 15 wellpreserved
oak-elm/hornbeam woodlands (Habitat 91F0), 15 degraded broadleaved woodlands
with high occurrence of black locust and 15 poplar plantations. Overall, 32 species were
recorded. Well-preserved woodlands had a lower species richness, but they hosted forest
specialists not occurring in the other two habitats. Graphis pulverulenta and Lecania cyrtellina
are new to Lombardy. Anisomeridium polypori, Diarthonis spadicea, Lecanora expallens and
Pseudoschismatomma rufescens are reported from Lombardy for the second time
Habitat loss, extinction debt and climate change threaten terricolous lichens in lowland open dry habitats
No full textEmploying plant translocations to restore open dry acidic habitats in European Continental lowlands: A case study in northern Italy
No full textA phytosociological survey of the Corynephorus canescens (L.) Beauv. communities of Italy
No full textEpiphytic lichens of woodland habitats in the lower Ticino river valley and in the “Bosco Siro Negri” Integral Nature State Reserve (NW Italy)
No full textDry grasslands of central-western Po Plain (Italy): implications under Council Directive 92/43/EEC
Full text linkThis paper provides an overall look on the diversity of lowland dry grasslands of the western Po Plain, useful to support their conservation and management. Specific aims were: 1) to identify lowland dry grassland-associated plant communities at alliance level, which is useful for their classification under the Council Directive 92/43/EEC, 2) to assess their synecological and synchorological differences, 3) to define the equivalent Directive habitats and their management implications. Seven subareas were analysed: Lomellina, Ticino River, Sesia River, Po River (North), Orba Stream, Scrivia Stream, and Serio River. Floristic-vegetational relevés were carried out considering vascular plant, moss and lichen species. Cluster analysis were performed to syntaxonomically classify them, while statistical tests were performed to characterize them by means of biological life forms, chorotypes and Ellenberg indicator values. Eight plant communities were classified at alliance level and three plant communities were classified at class level. The equivalence with three Natura 2000 Habitats (H2330, H6110* and H6210) was found. Of the 60 studied sites, the 68% are located inside the Natura 2000 Network, while the remnant 31% are located outside. Possible management actions include: cutting of woody species, mowing, sod-cutting, transplants of typical herbaceous species, and ex novo restoration using harvested seeds from donor grasslands
Two Cladonia species new to Italy from dry habitats in the Po Plain
No full textTwo Cladonia species new to Italy from dry habitats in the Po Plain. - Herzogia 31: 293–303.Cladonia conista and C. pulvinata occur at several sites in dry lowland habitats in the Po Plain (northern Italy). Vegetation relevés are provided in order to characterize the main lichen associations (Cladonietum rei, Cladonietum foliaceae, Pycnothelio-Cladonietum cervicornis) and vascular plant communities in which the two species were found in Thero-Airion dry acidic grasslands and in dry open Calluna heathlands
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