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001-es BibID:	BIBFORM058350
Első szerző:	Albert Ágnes Júlia (ökológus)
Cím:	Secondary succession in sandy old-fields : a promising example of spontaneous grassland recovery / Ágnes-Júlia Albert, András Kelemen, Orsolya Valkó, Tamás Miglécz, Anikó Csecserits, Tamás Rédei, Balázs Deák, Béla Tóthmérész, Péter Török
Dátum:	2014
ISSN:	1402-2001
Megjegyzések:	Question: Based on the spontaneous vegetation development of old-fields in the Nyírség and Kiskunság sand regions (Hungary), we aimed to answer the following questions using the chronosequence method: (1) how do the proportionsof different functional groups change during succession; (2) which target species establish successfully in the old-fields during the course of succession; and (3)how successful is spontaneous succession in the recovery of target grasslands-Location: Two sand regions of the Great Hungarian Plain: (1) the Nyírség sand region (East Hungary, acidic sand, moderately continental climate) and the Kiskunság (Central Hungary, calcareous sand, continental climate).Methods: Altogether 24 old-fieldswere classified into young (<10-yr-old),middle-aged (10-20-yr-old) and late-succession (20-40-yr-old) old-fields; four fields in each age category. For baseline vegetation reference, three open and three closed sand grassland stands in both regions were sampled in the vicinity of the old-fields. The percentage cover of vascular plants was recorded in five 2 X 2-mplots in each field, in early May and late June 2012. We used life forms, clonal spreading traits and Ellenberg indicator values for nutrients in the analysis. Speciesof Festuco-Brometea class were considered as target species.Results: The cover of hemicryptophytes and geophytes increased, the cover of short-lived species decreased with time. Cover of species without clonal spreadingability decreased, while cover of species with clonal spreading ability increased with increasing field age. The cover of invasive species decreased with increasing field age. The majority of target species had established already in the young and middle-aged old-fields, although their cover was significantly higher in the two older age groups.Conclusion: Spontaneous succession can be a vital option in recovery of sand grassland vegetation in Central Europe; the majority of the species pool of sandy grasslands can be recovered in the first 10-20 yrs. However, the success of grassland recovery can be strongly influenced by the surrounding species pool and can be slow if seed dispersal is limited. Spontaneous succession is most promising when the target species of grasslands immigrate at the very beginning of the succession, within the first few years.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban abandonment acidic sand calcareous sand clonal traits grassland restoration invasion spontaneous succession
Megjelenés:	Applied Vegetation Science. - 17 : 2 (2014), p. 214-224. -
További szerzők:	Kelemen András (1986-) (biológus-ökológus) Valkó Orsolya (1985-) (biológus) Miglécz Tamás (1986-) (biológus ökológus) Csecserits Anikó Rédei Tamás Deák Balázs (1978-) (biológus) Tóthmérész Béla (1960-) (ökológus) Török Péter (1979-) (biológus-ökológus)
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001-es BibID:	BIBFORM083240
Első szerző:	Fantinato, Edy
Cím:	Pollination and dispersal trait spectra recover faster than the growth form spectrum during spontaneous succession in sandy old-fields / Edy Fantinato, Judit Sonkoly, Giulia Silan, Orsolya Valkó, Béla Tóthmérész, Balázs Deák, András Kelemen, Tamás Miglécz, Silvia Del Vecchio, Francesca Bettiol, Gabriella Buffa, Péter Török
Dátum:	2019
ISSN:	1402-2001 1654-109X
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Applied Vegetation Science. - 22 : 3 (2019), p. 435-443. -
További szerzők:	Sonkoly Judit (1989-) (biológus) Silan, Giulia Valkó Orsolya (1985-) (biológus) Tóthmérész Béla (1960-) (ökológus) Deák Balázs (1978-) (biológus) Kelemen András (1986-) (biológus-ökológus) Miglécz Tamás (1986-) (biológus ökológus) Del Vecchio, Silvia Bettiol, Francesca Buffa, Gabriella Török Péter (1979-) (biológus-ökológus)
Pályázati támogatás:	NKFI KH 130338 egyéb NKFI K 116239 egyéb NKFI KH 126477 egyéb NTP-NFTÖ-18-B egyéb NKFI FK 124404 egyéb NKFI KH 126476 egyéb NKFIH K 119225 egyéb NKFI KH 129483 egyéb NKFI PD 124548 egyéb
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001-es BibID:	BIBFORM081278
Első szerző:	Kelemen András (biológus-ökológus)
Cím:	The invasion of common milkweed (Asclepias syriaca) in sandy old-fields : is it a threat to the native flora? / András Kelemen, Orsolya Valkó, György Kröel-Dulay, Balázs Deák, Péter Török, Katalin Tóth, Tamás Miglécz, Béla Tóthmérész
Dátum:	2016
ISSN:	1402-2001 1654-109X
Megjegyzések:	Questions: Common milkweed (Asclepias syriaca L.) is an invasive ?super species' that has invaded extensive areas in Europe, forming novel ecosystems. One study has reported neutral effects of common milkweed on the native flora of sand dune grasslands in Hungary after the removal of invasive pine plantation. However, the effects of common milkweed on native flora more generally are unknown. Focusing on the potential effect of milkweed, we tested the following hypotheses: (1) the cover of native grassland species decreases with increasing cover of common milkweed; and (2) native species with low specific leaf area (SLA), height, seed mass and clonal spreading ability (i.e. low competitive ability) are more likely suppressed by milkweed compared with natives with high competitive ability. Location Late successional sandy old?fields invaded by milkweed in the Great Hungarian Plain (Kiskunság, central Hungary). Methods We recorded the cover of vascular plants in seven old?fields; in each old?field we sampled 12 plots including plots with different milkweed cover and control plots without milkweed. We used linear mixed effect models for exploring the effects of milkweed on the species richness and cover of native grassland species. To identify the common traits of the most affected native species, we used trait?based analyses; we studied leaf-height-seed traits and clonal spreading ability. Results We detected no effect of common milkweed on total species richness, but it had a negative effect on the cover of grassland species. The negative effect of common milkweed was most pronounced on the cover of species with low SLA, low seed mass and low clonal spreading ability. Conclusions Our results suggest that native, late successional sandy grasslands invaded by common milkweed form undesirable novel ecosystems because of significant negative impacts on the cover of native grassland species, especially those species with low competitive ability. For these species, management of milkweed might be needed to ensure their persistence in sandy grasslands in this landscape.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Clonal spreading Competition Functional traits Novel ecosystem Old-field Plant invasion Sandy vegetation Seed mass Specific leaf area
Megjelenés:	Applied Vegetation Science. - 19 : 2 (2016), p. 218-224. -
További szerzők:	Valkó Orsolya (1985-) (biológus) Kröel-Dulay György (ökológus) Deák Balázs (1978-) (biológus) Török Péter (1979-) (biológus-ökológus) Tóth Katalin Ágnes (1977-) (biokémikus, molekuláris biológus) Miglécz Tamás (1986-) (biológus ökológus) Tóthmérész Béla (1960-) (ökológus)
Pályázati támogatás:	TAMOP-4.2.4.A/2-11-1-2012-0001 TÁMOP SROP-4.2.2.B-15/1/KONV-2015-0001 Egyéb OTKA PD 116200 OTKA OTKA PD 111807 OTKA
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001-es BibID:	BIBFORM103251
035-os BibID:	(WOS)000509801600001 (Scopus)85078659030
Első szerző:	Kovácsné Koncz Nóra (agrármérnök, biológus)
Cím:	Meat production and maintaining biodiversity: Grazing by traditional breeds and crossbred beef cattle in marshes and grasslands / Nóra Kovácsné Koncz, Béla Béri, Balázs Deák, András Kelemen, Katalin Tóth, Réka Kiss, Szilvia Radócz, Tamás Miglécz, Béla Tóthmérész, Orsolya Valkó
Dátum:	2020
ISSN:	1402-2001 1654-109X
Megjegyzések:	Questions Sustainable rangeland utilization considering traditions and economic reasons is compulsory for harmonising the needs of the agricultural and nature conservation sectors. For proper rangeland management it is crucial to compare the grazing effects of traditional breeds and crossbred animals of the same species that might have different effects on the rangelands. To fill this knowledge gap, in a grazing experiment, we investigated the effect of cattle breeds on the vegetation to test the effects on nature conservation value and agricultural production value. We hypothesized that the effects of cattle grazing on habitat conservation values and forage quality depend on the grazing breed, because breeds differ in selectivity, body size and trampling effect. Location Marshes and alkaline wet grasslands in Hortobagy National Park, Hungary. Methods We recorded the percentage cover of vascular plants in three consecutive years in a total of 60 plots in 12 areas grazed by traditional (0.61 AU/ha) and large-sized crossbred beef cattle (0.68 AU/ha). Results We found that the effect of cattle breed on the habitat conservation values and forage quality is dependent on the habitat type. The traditional breed maintained a significantly higher species number and Shannon diversity in marshes than the crossbred beef cattle. Grazing of crossbred cattle led to decreasing moisture indicator values in marsh habitats. Conclusions Our findings revealed that traditional breeds should be prioritized in the management of wet alkaline grasslands and marshes. Crossbred beef cattle might be a substitute but only in case traditional breeds are not available for the management of alkaline wet grasslands. In marshes, however, we recommend prioritizing the traditional breeds as they maintain higher diversity compared to crossbred beef cattle.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk alkaline grassland grazing intensity grazing regime livestock pasture rangeland wetland
Megjelenés:	Applied Vegetation Science. - 23 : 2 (2020), p. 139-148. -
További szerzők:	Béri Béla (1951-) (agrármérnök) Deák Balázs (1978-) (biológus) Kelemen András (1986-) (biológus-ökológus) Tóth Katalin (1988-) (biológus) Kiss Réka (1990-) (biológus, ökológus) Radócz Szilvia (1988-) (biológus) Miglécz Tamás (1986-) (biológus ökológus) Tóthmérész Béla (1960-) (ökológus) Valkó Orsolya (1985-) (biológus)
Pályázati támogatás:	EFOP-3.6.1-16-2016-00022 EFOP NKFIH FK-124404 Egyéb NKFIH K-116639 Egyéb NKFIH KH-126476 Egyéb NKFIH KH-126477 Egyéb NKFIH KH-130338 Egyéb NKFIH NKFI-PD-124548 Egyéb NKFIH NKFI-PD-128302 Egyéb
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