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Elias P.,Slovak University of Agriculture | Dite D.,Slovak Academy of Sciences | Grulich V.,Masaryk University | Suvada R.,Administration of the Slovensky Kras National Park
Hacquetia | Year: 2010

Historical and current occurrence of the obligate halophyte Pholiurus pannonicus was studied in Slovakia during the period 2003-2009. The species had been occurring in the Podunajská nížina Lowland and the Východoslovenská nížina Lowland; 30 localities were found in total. Recently the number of localities has decreased markedly and the species was confirmed only in the Podunajská nížina Lowland. We documented only seven localities during the study. Therefore, we confirmed that Pholiurus pannonicus belongs to the critically endangered plants of Slovak flora. Source

Dite D.,Slovak Academy of Sciences | Elias Jr. P.,Slovak University of Agriculture | Suvada R.,Administration of the Slovensky Kras National Park | Szombathova N.,Slovak University of Agriculture
Phyton - Annales Rei Botanicae | Year: 2010

The Pholiuro pannonici-Plantaginetum tenuiflorae WENDELBERGER 1943 community is only known from the Pannonian region. The community has been reliably documented in Austria, Slovakia, Hungary, Serbia and Romania. Because this plant community is known only from a relatively small area, details about its synecology are inaccurate. To fill the relevant gaps in knowledge, the ecology and coenology of this community were studied in two countries within the Pannonian Basin (Hungary and Slovakia). A DCA analysis of 77 relevés from the Pannonian Plain confirmed that the community is characterised by the co-occurrence of both dominant plant species with an abundance over 5%, although their individual abundances may reach values of up to 50%. The total area covered by vascular plants was relatively variable, ranging from 25 to 60%. The widespread presence of accessory species was dependent on the environmental conditions, in particular the moisture gradient. Our results also showed that while in Hungary the community occurs on across large areas, in Slovakia it is considered extinct. Extinction was likely caused by significant changes in the landscape structure, especially the land reclamation of alkali steppes (i.e., drainage, tillage). Secondary communities with both Pholiurus pannonicus and Plantago tenuiflora were created in damaged habitats, mainly in the deep tracks of rural roads. The occurrence of the above-mentioned species was dependent on occasional disturbance that eliminated competition from other plant species. Compared to the typical Pholiuro-Plantaginetum community, the secondary communities contain several ruderal and meadow species. pannonici-Plantaginetum tenuiflorae WENDELBERGER 1943. -. Source

Dite D.,Slovak Academy of Sciences | Dite D.,Matej Bel University | Elias Jr. P.,Slovak University of Agriculture | Suvada R.,Administration of the Slovensky Kras National Park | And 2 more authors.
Thaiszia Journal of Botany | Year: 2011

The paper provides information on the current occurrence of association Hordeetum hystricis Wendelbg. 1943 in Slovakia, where the community occurs at the northern border of its distribution range. The changes and vegetation state in the past and today are compared and discussed. The association is characterized by high cover of Hordeum geniculatum and is regarded as secondary community of relatively poorly salt-affected and nutrient rich solonetz soils. The occurrence of Hordeetum hystricis is related to intensively overgrazed sites in saline pastures. In Slovakia, the community was currently found near extinction and single locality was confirmed (Močenok, Siky farmstead). Due to the development trend and high dependence on sheep grazing the association is considered as critically endangered in Slovakia. Source

Dite D.,Slovak Academy of Sciences | Elias Jr. P.,Slovak University of Agriculture | Suvada R.,Administration of the Slovensky Kras National Park | Petrasova A.,Matej Bel University | Meleckova Z.,Slovak Academy of Sciences
Thaiszia Journal of Botany | Year: 2010

Association Artemisio santonici-Festucetum pseudovinae SOÓ. in MáTHÉ 1933 corr. BORHIDI 1996 is considered as one of the most abundant plant communities of saline habitats in the Pannonian Plain. The paper presents information about its current distribution in Slovakia. The obtained results were compared with historical data. Vegetation changes and the overall state of association in the past and today are commented. Although the association is considered to be primarily community of salt soils, the vegetation is able to create also on the largely disturbed places. Primary and secondary vegetation are comparable. Both were characterized by dominance of the two taxa: Artemisia santonicum subsp. patens and Festuca pseudovina. Secondary vegetation currently prevails in Slovakia. The natural communities we have sampled only on a few places (the Mostové Nature Reserve, Jatov, Kamenín, Kamenný Most). Due to the current state of saline habitats and absence of conservation management, we consider the association as critically endangered in Slovakia. Source

Dite D.,Slovak Academy of Sciences | Elias P.,Slovak University of Agriculture | Suvada R.,Administration of the Slovensky Kras National Park | Pis V.,Soil Science and Conservation Research Institute | Meleckova Z.,Slovak Academy of Sciences
Phytocoenologia | Year: 2015

The phytosociology and ecology of Scorzonera parviflora stands were studied in the Pannonian Basin and Western Balkans. In total, we used 60 relevés (46 collected for this study and 14 from the literature) for the ordination analysis. Optimal conditions for S. parviflora are species-poor coastal habitats in regions with hot summers and with high soil salinity and nutrient-richness. The species reached high cover values in most cases (25-50%) and it often dominated the stand. The classification of phytosociological data shows four floristically and ecologicaly well characterized clusters. Cluster 1 was identified as the rare association Junco maritimi- Scorzoneretum parviflorae, sampled only in coastal Croatia (on the island of Pag) and inland Hungary (Fertőszéplak). Cluster 2 groups meadow-like salt marsh vegetation in transition between two vegetation types, Limonio narbonensis-Puccinellietum festuciformis and Trifolio-Hordeetum secalini. Cluster 3 represents the typical variant of the Scorzonero parviflorae-Juncetum gerardii, while cluster 4 was determined as a variant with Tripolium pannonicum of the Scorzonero parviflorae-Juncetum gerardii characterized by a higher presence of obligate halophytes (Tripolium pannonicum, Puccinellia distans agg. and Plantago maritima) than in cluster 3. Our study shows that vegetation with Scorzonera parviflora in inland Central and SE Europe belongs to the Juncion gerardii and stands of coastal Croatia are related to the Juncion maritimi alliance. The species composition and the classification of the examined stands in the Pannonian and Transylvanian basins were influenced more by abiotic environmental factors than by current management. © 2015 Gebrüder Borntraeger, 70176 Stuttgart, Germany. Source

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