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001-es BibID:	BIBFORM079606
Első szerző:	Kundrát János Tamás (biológus-ökológus)
Cím:	Assessment of anthropogenic, seasonal and aquatic vegetation effects on the contamination level of oxbows / J. T. Kundrát, Zs. Balogh, S. Harangi, B. Tóthmérész, E. Simon
Dátum:	2017
ISSN:	1585-8553 1588-2756
Megjegyzések:	The contamination level of oxbows depends on both natural and anthropogenic effects. The aim of our study was to identify those abiotic and biotic factors that determine the contamination level of oxbows. The effect of anthropogenic activities, seasonality, and vegetation types was studied on the contamination level of surface water of oxbows. The following chemical variables were measured: suspended solid, ammonium, nitrate, chlorophyll-a, Al, Ba, Fe, Mn, Pb, Sr and Zn from eight oxbows from 2013 summer to 2014 autumn in the Upper Tisza region in Eastern Hungary. Three of the studied oxbows were protected, four oxbows were used for fishing and one oxbow was contaminated with wastewater. Our findings revealed that anthropogenic activities had remarkable effect on the contamination level of oxbows. Seasonality also influenced the contamination level, except the concentration of suspended solid, chlorophyll-a and manganese. Significant differences were found among vegetation types for the concentration of suspended solids, aluminium, iron, manganese and lead. The high level of iron concentration was not explained by the anthropogenic activities, suggesting that the quality of oxbows depends on both natural and anthropogenic effects.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény hazai lapban Heavy metals Monitoring Surface water Water chemistry
Megjelenés:	Community Ecology. - 18 : 3 (2017), p. 237-243. -
További szerzők:	Balogh Zsuzsanna (1986-) (biológia környezettan tanár) Harangi Sándor (1982-) (agrármérnök) Tóthmérész Béla (1960-) (ökológus) Simon Edina (1981-) (ökológus)
Pályázati támogatás:	SROP-4.2.2.B-15/1/KONV20150001 Egyéb
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001-es BibID:	BIBFORM079633
Első szerző:	Tajthi Bence (ökológus)
Cím:	Spider assemblages in floodplain forests along an urbanization gradient / Tajthi Bence, Horváth Roland, Mizser Szabolcs, Nagy D. D., Tóthmérész B.
Dátum:	2017
ISSN:	1585-8553 1588-2756
Megjegyzések:	Urban areas have been growing radically worldwide, causing considerable changes in biodiversity of natural habitats. In floodplain forests, we studied the effects of urbanization on ground-dwelling spider assemblages along a rural?suburban?urban gradient in Hungary. We tested three traditional hypotheses (intermediate disturbance hypothesis, habitat specialist hypothesis and hygrophilous species hypothesis) and two novel expectations (shade-preferring species hypothesis, and disturbance sensitive species hypothesis) on spiders. We found that the total number of species was higher in the suburban habitat than in rural and urban ones, supporting the intermediate disturbance hypothesis. We found a decrease in the species richness of forest specialist and shade-preferring species along the urbanization gradient. We found that the number of hygrophilous and disturbance sensitive species was the lowest in the urban habitat. The spider assemblages of the rural and suburban habitats were clearly separated from the assemblages of urban habitats. Based on our findings we emphasize that low and moderate intensity of forest management contributes to the preservation of the local species richness in floodplain forests.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény hazai lapban folyóiratcikk Diversity Floodplain forest GlobeNet Human disturbance Litter sifting
Megjelenés:	Community Ecology. - 18 : 3 (2017), p. 311-318. -
További szerzők:	Horváth Roland (1974-) (biológus-ökológus) Mizser Szabolcs (1977-) (biológus-ökológus) Nagy Dávid (1986-) (biológus-ökológus) Tóthmérész Béla (1960-) (ökológus)
Pályázati támogatás:	OTKA K 116639 OTKA
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