1,721,033 research outputs found
Gli oli essenziali di Saturejia variegata Host ("S. montana" auct. plur., non L.) nel Carso di Trieste.
No full text
Model for the potential natural vegetation mapping of Friuli-Venezia Giulia (Ne Italy) and its application for a biogeographic classification of the region.
No full text
Influenza dei fattori altitudinale, stagionale ed ambientale sulla produzione dei principi attivi di Helleborus odorus subsp. laxus (Host) Merxm e Pod.
No full textNew syntaxonomic contribution to the Vegetation Prodrome of Italy
No full textNew syntaxa of different hierarchical levels are here described in order to update the “Syntaxonomic checklist of the Italian classes, orders and alliances (Vegetation Prodrome of Italy)”, promoted in 2012 by the “Ministry of Environment, Land and Sea Protection” in collaboration with the “Italian Society of Botany”. The new alliances, suballiances and associations belong to the Salici purpureae-Populetea nigrae and Querco roboris-Fagetea sylvaticae classes
Plant and animal diversity in a region of the Southern Alps: the role of environmental and spatial processes
No full textDifferent organisms respond to landscape
configuration and spatial structure in different terms
and across different spatial scales. Here, regression
models with variation partitioning were applied to
determine relative influence of the three groups of
variables (climate, land use and environmental heterogeneity)
and spatial structure variables on plant, bird,
orthopteran and butterfly species richness in a region
of the Southern Alps, ranging in elevation from the sea
level to 2,780 m. Grassland and forest cover were
positively correlated with species richness in both
taxonomic groups, whilst species richness decreased
with increasing urban elements and arable land. The
variation was mainly explained by the shared component
between the three groups in plants and between
landscape and environmental heterogeneity in birds.
The variation was related to independent land use
effect in insects. The distribution in species richness
was spatially structured for plants, birds and orthopterans, whilst in butterflies, no spatial structure
was detected. Plant richness was associated with linear
trend variation and broad-scale spatial structure in the
northern part of the region, whilst bird richness with
broad-scale variation which occurs on the external
Alpine ridge. Orthopteran diversity was strongly
related to fine-scale spatial structure, generated by
dynamic processes or by unmeasured spatially structured
abiotic factors. Although the study was carried
out in relatively small area, the four taxonomic groups
seem to respond to biodiversity drivers in a surprisingly
different way. This has considerable implications
for conservation planning as it restricts the
usefulness of simple indicators in prioritizing areas for
conservation purposes
Supplementary material 1 from: Dainese M, Poldini L (2012) Does residence time affect responses of alien species richness to environmental and spatial processes? NeoBiota 14: 47-66. https://doi.org/10.3897/neobiota.14.3273
No full textSupplementary material 1 from: Dainese M, Poldini L (2012) Does residence time affect responses of alien species richness to environmental and spatial processes? NeoBiota 14: 47-66. https://doi.org/10.3897/neobiota.14.327
- …
