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001-es BibID:	BIBFORM078569
035-os BibID:	(cikkazonosító)929 (Wos)000472680400059 (Scopus)85066328449
Első szerző:	Berta Csaba (hidrobiológus)
Cím:	Community Response of Cladocera to Trophic Stress by Biomanipulation in a Shallow Oxbow Lake / Csaba Berta, Béla Tóthmérész, Marta Wojewódka, Olga Augustyniuk, János Korponai, Boglárka Bertalan-Balázs, Alex Sándor Nagy, István Grigorszky, István Gyulai
Dátum:	2019
ISSN:	2073-4441
Megjegyzések:	Studying contemporary and subfossil Cladocera (Crustacea) communities, we explored the effect of top-down stressors on the cladoceran communities; we are also interested in the coherence of the contemporary and subfossil communities. The studied Cibakháza oxbow lake is in E Hungary, on the left-floodplain of the River Tisza; it is a large, long, and shallow oxbow lake. Three areas of the oxbow lake were distinguished based on the strength of top-down stress: protected area with low top-down stress, biomanipulated area with high top-down stress, and recreational area with moderate top-down stress. Altogether, we identified 28 taxa in the contemporary and subfossil communities in the oxbow lake. We found that the species number of the contemporary Cladocera communities was lower (protected area: 13; biomanipulated area: 9, and recreational area: 14) than in the subfossil communities (protected area: 20; biomanipulated area: 16, and recreational area: 14). Among the environmental variables, we observed differences between the protected and biomanipulated area, while the recreational area showed a transition. Species number, abundances, and Simpson diversity also showed the effect of the fish introduction. There were no differences in beta-diversity among the contemporary and subfossil Cladocera community. The non-metric multidimensional scaling (NMDS) ordination showed that the biomanipulated area in the case of the contemporary communities was separated from the other areas, while in the case of the subfossil communities, there was no separation according to top-down stress. Our results showed that the number of species of contemporary Cladocera communities was lower in each area (3-10; 3-9; 5-9) compared to the subfossil communities (6-17; 7-12; 8-12). However, the highest abundances were found in the biomanipulated area due to the appearance of small-sized Cladocera species. Our findings suggest that the effect of a short-time fish introduction is restorable when the oxbow lake has a protected part.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk zooplankton diversity biomanipulation nature protection anthropogenic impacts restoration
Megjelenés:	Water. - 11 : 5 (2019), p. 929-942. -
További szerzők:	Tóthmérész Béla (1960-) (ökológus) Wojewódka, Marta Augustyniuk, Olga Korponai János (1964-) (biológus) Balázs Boglárka (1985-) (geográfus) Nagy Sándor Alex (1956-) (hidrobiológus) Grigorszky István (1967-) (biológus-ökológus) Gyulai István (1980-) (biológus)
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001-es BibID:	BIBFORM110249
035-os BibID:	(cikkazonosító)232 (Scopus)85151142116 (WoS)000955446600003
Első szerző:	Bibi Dina
Cím:	Heavy Metal Pollution of Soil in Vienna, Austria / Dina Bibi, Dávid Tőzsér, Bianka Sipos, Béla Tóthmérész, Edina Simon
Dátum:	2023
ISSN:	0049-6979
Megjegyzések:	Along an urbanization gradient, we explored the soil metal pollution in Vienna, Austria. We analyzed the physical and chemical parameters of topsoil from urban, suburban, and rural areas. The following elements were quantified using ICP-OES technique: Al, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Na, Ni, P, Pb, S, Sr, and Zn. For heavy metals, PI (pollution index) values were used to assess the level of pollution. We found that the concentration of Cu, Pb, Sr, and Zn was higher in the urban and suburban area than in the rural area. The PI values indicated a moderate level of pollution by Cd (1 ? PI ? 2) along the urbanization gradient. We found a low level of pollution for Cr, Cu, Ni, Pb, and Zn (PI ? 1) in studied areas. Our findings demonstrated the presence of anthropogenic contamination, and it is likely that traffic emission may be the major source of metal pollution in Vienna. Our findings also demonstrated that the elemental analysis of soil and the values of PI are adequate indicators of the level of pollution based on soil sample analysis in urban ecosystems.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Pollution index Heavy metals Urbanization Physical-chemical parameters
Megjelenés:	Water Air And Soil Pollution. - 234 : 4 (2023), p. 1-11. -
További szerzők:	Tőzsér Dávid (1990-) (környezetkutató) Sipos Bianka (1997-) (Okleveles Biotechnológus) Tóthmérész Béla (1960-) (ökológus) Simon Edina (1981-) (ökológus)
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001-es BibID:	BIBFORM105032
035-os BibID:	(cikkazonosító)2200 (WoS)000502264500002 (Scopus)85075550457
Első szerző:	Simon Edina (ökológus)
Cím:	Environmental-friendly Contamination Assessment of Habitats Based on the Trace Element Content of Dragonfly Exuviae / Edina Simon, Béla Tóthmérész, Olga Kis, Tibor Jakab, Petra Éva Szalay, András Vincze, Edina Baranyai, Sándor Harangi, Margit Miskolczi, György Dévai
Dátum:	2019
ISSN:	2073-4441
Megjegyzések:	We tested the usefulness of exuviae as an environmentally friendly method for exploring the variability of the trace element contents of protected insect populations without killing specimens. It is a notable characteristic of dragonflies that they are good ecological indicators for both aquatic and terrestrial habitat quality. Thus, we investigated the trace element accumulation in different stages of dragonflies: larva, exuvia, and adult. Using microwave plasma atomic emission spectrometry (MP-AES), we analysed the concentrations of Al, Ba, Cr, Cu, Fe, Mn, Pb, Sr and Zn. We found that the trace element contents of exuviae are a good proxy of the trace element contents of both the larvae and the adults. We conclude that exuvia is useful for assessing the environmental health of aquatic ecosystems. It is an environmentally friendly method and it can be used even in the case of protected dragonfly species.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk larvae adults pollution exuviae non-invasive tissue analysis
Megjelenés:	Water. - 11 (2019), p. 1-10. -
További szerzők:	Tóthmérész Béla (1960-) (ökológus) Kis Olga (1989-) (hidrobiológus) Jakab Tibor Szalay Petra Éva Vincze András Baranyai Edina (1987-) (környezetkutató) Miskolczi Margit (1954-) (ökológus) Dévai György (1942-) (ökológus)
Pályázati támogatás:	TAMOP 4.2.4. A/2-11-1-2012-0001 TAMOP TAMOP-4.2.2. A-11/1/KONV-2012-0043 TAMOP OTKA-K-116639 OTKA OTKA-KH-126481 OTKA OTKA-KH-126477 OTKA
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