Search results for "Vascular plant"
showing 9 items of 79 documents
Plant biodiversity in boreal wood-pastures : impacts of grazing and abandonment
2016
Biogeographic patterns of base-rich fen vegetation across Europe
2014
International audience; Questions: What is the distribution of base-rich fen vegetation and the specia- list species along European biogeographic regions? How do the gradients in spe- cies composition correlate to geography and climate at continental scale? What are the implications of such patterns for the classification of these habitats?Location: Fifteen countries of Central, Western and Northern Europe.Methods: We compiled a vegetation plot database of base-rich fens and related communities including vascular plants and bryophytes. The initial data set with 6943 plots was filtered according to the presence of specialists using discriminant analysis. We used DCA to analyse the correlatio…
The role of in situ species diversification for the evolution of high vascular plant species diversity in the European Alps—A review and interpretati…
2017
Abstract By harbouring ca. 3500 native vascular plant species in an area of ca. 170 000 km2, the European Alps represent a region of very high species diversity. Using the most recently published flora of the area and phylogenetic literature, I here review which proportion of the endemic flora of the Alps is the result of in situ diversification, i.e., of diversification in the area and (largely) restricted to the area. There exist only very few and mostly species-poor species diversifications in the Alps, accounting for ca. 1.2% of the native and for ca. 9% of the endemic flora of the Alps. In contrast to this, ca. 33% of the endemic species of the Alps belong to lineages widespread in the…
Aportaciones sobre la corología y estado de conservación de algunas plantas raras y amenazadas del macizo del Penyagolosa
2019
Se comunican nuevas localidades, o se precisa la ubicación de antiguas citas, de diversas plantas vasculares consideradas raras o amenazadas en el conjunto de la flora del Macizo del Penyagolosa, la mayoría presentes en el municipio de Vistabella del Maestrat (Castellón). Se aportan datos poblacionales de algunas especies amenazadas para contribuir al seguimiento de su estado de conservación. The presence of new localities of various taxa of vascular plants is reported, which are considered rare or endangered for the flora of the Penyagolosa, mainly from Vistabella del Maestrat (Castellón). Population data of some endangered species are included to contribute to the monitoring of their cons…
Widłaczek torfowy Lycopodiella Inundata (L.) Holub w stawach hodowlanych na Śląsku
2017
W pracy przedstawiono przegląd informacji na temat występowania widłaczka torfowego Lycopodiella inundata (L.) Holub oraz opisano nowe stanowiska zlokalizowane w stawach hodowlanych na Śląsku. W Polsce gatunek ten należy do bardzo rzadkich składników flory. W trakcie przeprowadzonych badań stwierdzony został na tym obszarze na 8 stanowiskach. Zagrożeniem dla taksonu na Śląsku, jak i w Europie jest postępująca sukcesja roślinności na stanowiskach.
Żabieniec trawolistny Alisma gramineum Lej. w stawach hodowlanych południowo-zachodniej Polski - rozmieszczenie, warunki występowania
2017
W pracy przedstawiono przegląd informacji na temat występowania żabieńca trawolistnego Alisma gramineum Lej. oraz omówiono nowe stanowiska zlokalizowane w stawach hodowlanych południowo-zachodniej Polski. W Polsce gatunek ten należy do bardzo rzadkich składników flory. Większość z około 120 dotychczas znanych jego stanowisk pochodzi z XIX lub pierwszej połowy XX w. Obecnie gatunek ten znany jest z około 30 stanowisk, z czego 2 znajdują się w południowo-zachodniej Polsce. W trakcie obecnych badań stwierdzony został na tym obszarze w stawach hodowlanych na 5 nowych stanowiskach – 3 znajdują się na Dolnym Śląsku, a 2 na Śląsku Opolskim. Zanik stanowisk Alisma gramineum w południowo-zachodniej …
Nitrogen-fixing cushion Astragalus siculus modulates soil fertility, microclimate, plant facilitation, bacterial and fungal microbiota along an eleva…
2023
Question: Cushion-forming vascular plants are adapted to alpine environments and act as ecosystem engineers by moderating microclimate and creating a fertility island under their canopy. Most of the available studies on cushion ecology have been devoted to plant facilitation, but none used a holistic approach that considers the response of co-existing plant species with other key ecosystem players. Here, we quantified the biogenic effect and facilitation capacity of Astragalus siculus, a spiny nitrogen-fixing cushion plant, and test the hypothesis that the facilitation effect would increase with elevation as stress gradient.Location: Mount Etna, the highest active volcano in the Mediterrane…
Critical forms in Sicilian populations of annual Lysimachia L. (Primulaceae)
2018
Based on recent literature, in the Primrose family the genus Lysimachia L. absorbed Anagallis L. (1). As a result, new name combinations have been introduced for this genus, thus involving the increase of specific and intraspecific taxa (for Italian flora see 2 and 3). A further consequence, focused in this contribution, concerns the binomial combination Lysimachia arvensis (L.) U.Manns & Anderb., which has different synonyms and includes several specific and intraspecific taxa. As far as the taxonomic history of the annual taxa of Anagallis is concerned, different authors preferred to include some of them in A. arvensis and in A. foemina at the level of variety (4) or subspecies (2), w…
Index Balearicum (III). Catàleg comentat de les plantes vasculars descrites de les Illes Balears. Addicions (2008-2016) i correccions
2017
Aquesta compilació inclou actualitzacions nomenclaturals i taxonòmiques per al catàleg de plantes vasculars descrites de les Illes Balears. Aquesta actualització inclou plantes descrites entre 2008 i 2016 a més de correccions per a altres tractades en treballs anteriors.