Search Results - "Oťaheľová, Helena"

Effects of ammonium levels on growth and accumulation of antioxidative flavones of the submerged macrophyte Ceratophyllum demersum by Eliašová, Adriana, Hrivnák, Richard, Štefánová, Petra, Svitok, Marek, Kochjarová, Judita, Oťaheľová, Helena, Novikmec, Milan, Pal'ove-Balang, Peter

“…•High ammonium concentration strongly limits presence of Ceratophyllum demersum.•Ammonium induced accumulation of flavones with antioxidant…”
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Ponds and their catchments: size relationships and influence of land use across multiple spatial scales by Novikmec, Milan, Hamerlík, Ladislav, Kočický, Dušan, Hrivnák, Richard, Kochjarová, Judita, Oťaheľová, Helena, Paľove-Balang, Peter, Svitok, Marek

“…The information on both the catchment land use and catchment area has the potential to be adopted into the conservation and management of ponds. There have…”
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Environmental thresholds and predictors of macrophyte species richness in aquatic habitats in central Europe by Svitok, Marek, Hrivnák, Richard, Kochjarová, Judita, Oťaheľová, Helena, Paľove-Balang, Peter

“…The degradation of habitats and species loss in freshwaters is far greater than in any other ecosystem. The decline in biodiversity has a strong potential to…”
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Test of the efficiency of environmental surrogates for the conservation prioritization of ponds based on macrophytes by Svitok, Marek, Novikmec, Milan, Hamerlík, Ladislav, Kochjarová, Judita, Oťaheľová, Helena, Paľove-Balang, Peter, Senko, Dušan, Matúšová, Zuzana, Bubíková, Kateřina, Hrivnák, Richard

“…•Connectivity and trophy were the best surrogates of pond-dwelling plant diversity.•No surrogates were found for diversity and occurrence of alien macrophytes…”
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The Importance of Local and Regional Factors on the Vegetation of Created Wetlands in Central Europe by Svitok, Marek, Hrivnák, Richard, Oťaheľová, Helena, Dúbravková, Daniela, Paľove-Balang, Peter, Slobodník, Vladimír

“…We assessed the relative importance of regional and local processes to wetland plant diversity in created depressional wetlands in Central Europe (Košské…”
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Spatio-temporal changes in land cover and aquatic macrophytes of the Danube floodplain lake by Ot'ahel'ova, H, Ot'ahel, J, Pazur, R, Hrivnak, R, Valachovic, M

“…The aquatic vegetation of Číčov Lake in the Danube floodplain, which is listed in the Ramsar Convention, was investigated to address three main questions: (1)…”
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Seasonal dynamics of macrophyte abundance in two regulated streams by Hrivnák Richard, Oťaheľová Helena, Gömöry Dušan

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The impact of environmental factors on the distribution pattern of aquatic plants along the Danube River corridor (Slovakia) by Ot'ahel'ova, H, Valachovic, M, Hrivnak, R

“…The aim of the study was to evaluate pattern of the aquatic macrophyte species distribution along the Danube fluvial corridor in Slovakia, and to identify the…”
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Macrophyte distribution and ecological status of the Turiec River (Slovakia): Changes after seven years by Hrivnák, R., Oťaheľová, Helena, Valachovic, M.

“…Characteristics of diversity, abundance, distribution, and ecological status of aquatic macrophytes were observed in 2000 and 2007 on a circa 4.5 km long…”
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Vegetation of the aquatic and marshland habitats in the Orava region, including the first records of Potametum alpini, Potametum zizii and Ranunculo-Juncetum bulbosi in the territory of Slovakia by Hrivnák, Richard, Judita KochjarovÃ, Helena OÅ¥aheľovÃ

“…The vegetation of the aquatic and marshland habitats of the Orava region (north of Slovakia) was studied in 2009, using traditional phytosociological methods…”
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Alien aquatic plants in Slovakia over 130 years: historical overview, current distribution and future perspectives by Hrivnák, Richard, Medvecká, Jana, Baláži, Peter, Bubíková, Kateřina, Oťaheľová, Helena, Svitok, Marek

“…Alien aquatic plants rank amongst the major threats to aquatic biodiversity and, since ongoing climate change is expected to facilitate their further spread,…”
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Diversity of aquatic macrophytes in relation to environmental factors in the Slatina river (Slovakia) by Hrivnak, Richard, Otahel'ova, Helena, Jarolimek, Ivan

“…Distribution and plant mass of aquatic macrophytes, and their relation to environmental conditions was studied in the submontane-colline Slatina river in 2004…”
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Temporal changes of aquatic macrophytes vegetation in a Iowland groundwater feed eutrophic course (Klátovské rameno, Slovakia) by Oťahel'ová, Helena, Hrivnák, Richard, Valachovič, Milan, Janauer, Georg A

“…Klátovské rameno is the lowland slow-flowing groundwater feed eutrophic tributary of the Malý Dunaj River (Danube Plain), where our study of temporal changes…”
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Macrophytic Communities of Open Surfaces in the Danubian Plain (Czechoslovakia) by Helena Oťahelová

“…The paper brings a description of some macrophytic plant communities from classes Lemnetea and Potametea occurring in oxbows, backwaters and canals of the…”
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Environmental effects on species richness of macrophytes in Slovak streams by Hrivnák Richard, Oťheľová Helena, Gömöry Dušan, Valachovič Milan, Paľove-Balang Peter

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Contribution to the Ecology of Marsilea quadrifolia L by Štěpán Husák, Helena Oťahelová

“…Data are presented on the aboveground and underground biomass of the species Marsilea quadrifolia and on the water regime and soil conditions in a habitat of…”
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Contribution to the ecology ofMarsilea quadrifolia L by Husák, Štěpán, Oťahelová, Helena

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