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001-es BibID:	BIBFORM075051
Első szerző:	Gyulai István (biológus)
Cím:	Cladocera remains and vegetation types to assess the state of oxbows / István Gyulai, Csilla Lakatos, János Tamás Kundrát, Zsuzsanna Balogh, Edina Simon, Béla Tóthmérész
Dátum:	2018
ISSN:	1314-6947 1314-3301
Megjegyzések:	AbstractWe assessed the usefulness of Cladocera remains for establishing the ecological status of oxbows and also tested the association of Cladocera species with various vegetation types. Cladocera remains were collected from the surface sediment of four habitat types (tangled vegetation, open water, reeds and tunnels) and 15 physical and chemical parameters of surface water were studied. In the surface sediment samples, we identified 32 Cladocera taxa. There was a significant difference in the number of species amongst habitat types as per ANOVA. The benthic and plant associated Cladocera communities of reeds, tangled vegetation, open water and tunnels were clearly separated from each other by NMDS ordination. CCA showed that habitat types had characteristic Cladocera species: Pleuroxus species were frequent in the tangled vegetation habitat, while Chydorus species were frequent in the open water. Remarkably, in reeds, Bosmina species were frequent, although these species are usually common in open water. Specimens of the Alona genus were found everywhere. Our findings suggest that the remains of Cladocera species may be useful indicators to assess and monitor the structure of freshwater lakes.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban Water-Sediment chemistry Macrophytes Zooplankton Indicator species
Megjelenés:	Nature Conservation. - 29 (2018), p. 27-38. -
További szerzők:	Lakatos Csilla Kundrát János Tamás (1984-) (biológus-ökológus) Balogh Zsuzsanna (1986-) (biológia környezettan tanár) Simon Edina (1981-) (ökológus) Tóthmérész Béla (1960-) (ökológus)
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat DOI
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001-es BibID:	BIBFORM083298
Első szerző:	Török Péter (biológus-ökológus)
Cím:	Recovery of native grass biodiversity by sowing on former croplands : is weed suppression a feasible goal for grassland restoration? / Péter Török, Tamás Miglécz, Orsolya Valkó, András Kelemen, Balázs Deák, Szabolcs Lengyel, Béla Tóthmérész
Dátum:	2012
ISSN:	1617-1381
Megjegyzések:	Grassland restoration on former croplands offers good opportunity to mitigate the loss of grassland biodiversity. Weed suppression can be another benefit, which becomes increasingly important because of the high recent rate of abandonment of arable lands in Central and Eastern Europe. Our aim was to evaluate the usefulness of sowing two low-diversity seed mixtures followed by annual mowing, a frequently used restoration technique, in weed suppression. We found that rapidly forming cover of sown grasses effectively suppressed short-lived weeds and their germination except in the first year. The detected dense seed bank of short-lived weeds points out the possibility and threat of later weed infestation. In the short run perennial weeds cannot be suppressed easily by sowing and annual mowing. We found that the effectiveness of seed sowing followed by mowing in weed suppression can be different on sites with different history or seed mixture. Rapidly establishing perennial weeds, such as Agropyron species were only detected in former alfalfa fields; Cirsium arvense was found in former cereal and sunflower fields but not in former alfalfa fields. We found that the rate of weed suppression and success was influenced by the seed mixtures used. In several alkali restorations the high proportion of perennial weeds was detected in year 3. In loess restorations, much lower scores were typical. This was likely caused by the different seed mixture used. The loess seed mixture contained seeds of a clonally spreading tall-grass, Bromus inermis, which could compete more effectively with clonally spreading weeds, than could short grass species with or without tussock forming. Our findings indicate that post-restoration management require carefully designed actions that are fine-tuned addressing specific threats at the site level.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Journal for Nature Conservation. - 20 : 1 (2012), p. 41-48. -
További szerzők:	Miglécz Tamás (1986-) (biológus ökológus) Valkó Orsolya (1985-) (biológus) Kelemen András (1986-) (biológus-ökológus) Deák Balázs (1978-) (biológus) Lengyel Szabolcs (1971-) (biológus) Tóthmérész Béla (1960-) (ökológus)
Pályázati támogatás:	LIFE04NAT/HU/000119 egyéb OTKA NN F78887 OTKA TÁMOP 4.2.1./B-09/1/KONV-2010-0007 TÁMOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM080179
Első szerző:	Tőzsér Dávid (környezetkutató)
Cím:	Remediation potential of early successional pioneer species Chenopodium album and Tripleurospermum inodorum / Tőzsér Dávid, Tóthmérész Béla, Harangi Sándor, Baranyai Edina, Lakatos Gyula, Fülöp Zoltán, Simon Edina
Dátum:	2019
ISSN:	1314-6947 1314-3301
Megjegyzések:	Remediation with plants is a technology used to decrease soil or water contamination. In this study we assessed the remediation potential of two weed species (Chenopodium album and Tripleurospermum inodorum) in a moderately metal-contaminated area. Metal concentrations were studied in roots, stems and leaves, in order to assess correlations in metal concentrations between those in soil and plants. Furthermore, we calculated bioaccumulation factor (BAF), bioconcentration factor (BCF) and translocation factor (TF) values to study the accumulation of metals from soil to plants and translocation within plants. We found correlation in metal concentrations between soil and plants. The metal accumulation potential was low in both species, indicating low BAF and BCF values. In contrast, high TF values were found for Mn, Ni, Sr, Zn, Ba, Fe, Cu and Pb in C. album, and for Fe, Mn, Ni, Zn and Sr in T. inodorum. Our results demonstrated that the potential of C. album and T. inodorum might be limited in phytoextraction processes; however, when accumulated, metals are successfully transported to aboveground plant organs. Thus, to achieve the efficient remediation of metal-contaminated soils, removal of the aboveground plant organs is recommended, by which soil disturbance can also be avoided.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk bioaccumulation trace elements phytoextraction pollution translocation
Megjelenés:	Nature Conservation-Bulgaria. - 36 (2019), p. 47-69. -
További szerzők:	Tóthmérész Béla (1960-) (ökológus) Harangi Sándor (1987-) (vegyész) Baranyai Edina (1987-) (környezetkutató) Lakatos Gyula (1949-) (ökológus) Fülöp Zoltán (1988-) Simon Edina (1981-) (ökológus)
Pályázati támogatás:	K 116639 OTKA KH 126481 OTKA KH 126477 OTKA NTP-NFTÖ-17 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM071721
Első szerző:	Valkó Orsolya (biológus)
Cím:	Cultural heritage and biodiversity conservation - plant introduction and practical restoration on ancient burial mounds / Valkó Orsolya, Tóth Katalin, Kelemen András, Miglécz Tamás, Radócz Szilvia, Sonkoly Judit, Tóthmérész Béla, Török Péter, Deák Balázs
Dátum:	2018
ISSN:	1314-6947 1314-3301
Megjegyzések:	Linking the conservation of cultural heritage and natural values provides a unique opportunity for preserving traditional landscapes and receives an increased awareness from stakeholders and society. Ancientburial mounds are proper objects of such projects as they are iconic landscape elements of the Eurasiansteppes and often act as refugia for grassland specialist species. The aim of this project was to reintroducegrassland plant species to burial mounds for representing them as cultural monuments with the associatedbiodiversity for the public. The effectiveness of seed sowing, transplanting greenhouse-grown plantsand individuals from threatened populations on burial mounds in Hortobágy National Park, Hungarywas tested. The following questions were answered: (1) which method is the most effective for speciesintroduction? (2) which species can establish most successfully? (3) how does management affect thespecies establishment rates? It was found advisable to use a combination of seed sowing and transplantinggreenhouse-grown plants. Sowing was found as a cost-effective method for introducing large-seededspecies, whilst introduction of greenhouse-grown transplants warranted higher establishment rates for alarger set of species. Transplanting adult individuals was more reliable regardless of management regimes,however this method is labour-intensive and expensive. Intensive management, like mowing with heavymachinery and intensive grazing, should be avoided in the first few years after introduction. The authors highlighted the fact that introducing characteristic grassland species on cultural monuments offers a greatopportunity to link issues of landscape and biodiversity conservation. This project demonstrated that, bythe revitalisation of cultural monuments, cultural ecosystem services can also be restored.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban cultural ecosystem services endangered species grassland restoration landscape conservation landscape element reintroduction
Megjelenés:	Nature Conservation. - 24 (2018), p. 65-80. -
További szerzők:	Tóth Katalin (1988-) (biológus) Kelemen András (1986-) (biológus-ökológus) Miglécz Tamás (1986-) (biológus ökológus) Radócz Szilvia (1988-) (biológus) Sonkoly Judit (1989-) (biológus) Tóthmérész Béla (1960-) (ökológus) Török Péter (1979-) (biológus-ökológus) Deák Balázs (1978-) (biológus)
Pályázati támogatás:	OTKA-111807 OTKA
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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