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001-es BibID:	BIBFORM082706
035-os BibID:	(WoS)000469999900007 (Scopus)85064178680
Első szerző:	Lukács Balázs András (ökológus)
Cím:	Carbon forms, nutrients and water velocity filter hydrophyte and riverbank species differently : a trait-based study / Balázs A. Lukács, Anna E-Vojtkó, Tibor Erős, Attila Molnár V., Sándor Szabó, Lars Götzenberger
Dátum:	2019
ISSN:	1100-9233 1654-1103
Megjegyzések:	Trait-based approaches are widely used in community ecology and invasion biology to unravel underlying mechanisms of vegetaton dynamics. Although fundamental tradeoffs between specifc traits and invasibility are well described among terrestrial plants, litle is known about their role and functon in aquatc plant species. In this study, we examine the functonal differences of aquatc alien and natve plants statng that alien and natve species differ in selected leaf traits. Our investgaton is based on 60 taxa (21 alien and 39 natve) collected from 22 freshwater units of Hungarian and Italian lowlands and highlands. Linear mixed models were used to investgate the effects of natveness on four fundamental traits (leaf area, leaf dry mater content, specifc leaf area, and leaf nitrogen content), while the influence of growth-form, alttude, and site were employed simultaneously. We found signifcantly higher values of leaf areas and signifcantly lower values of specifc leaf areas for alien species if growth-form was included in the model as an additonal predictor.We showed that the trait-based approach of autochthony can apply to aquatc environments similar to terrestrial ones, and leaf traits have relevance in explaining aquatc plant ecology whether traits are combined with growth-forms as a fxed factor. Our results confrm the importance of traits related to compettve ability in the process of aquatc plant invasions. Alien aquatc plants can be characterized as species producing sof leaves faster. We argue that the functonal traits of alien aquatc plants are strongly growth-form dependent. Using the trait-based approach, we found reliable characteristcs of aquatc plants related to species invasions, which might be used, for example, in conservaton management.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk functonal trait invasion ecology LDMC macrophyte neophyte SLA
Megjelenés:	Journal Of Vegetation Science. - 30 : 3 (2019), p. 471-484. -
További szerzők:	Vojtkó Anna, E. (1988-) (biológus) Erős Tibor Molnár V. Attila (1969-) (biológus, botanikus) Szabó Sándor (biológus) Götzenberger, Lars
Pályázati támogatás:	OTKA K108992 OTKA TÁMOP-4.2.4.A/2-11/1-2012-0001 TÁMOP
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001-es BibID:	BIBFORM070895
Első szerző:	Sonkoly Judit (biológus)
Cím:	A new aspect of grassland vegetation dynamics: cyanobacterium colonies affect establishment success of plants / Judit Sonkoly, Orsolya Valkó, Balázs Deák, Tamás Miglécz, Katalin Tóth, Szilvia Radócz, András Kelemen, Milán Riba, Gábor Vasas, Béla Tóthmérész, Péter Török
Dátum:	2017
ISSN:	1100-9233
Megjegyzések:	Aims: Cyanobacteriamay have considerable effects on community functioning, mostly because they produce various metabolites that adversely affect other organisms. Here we synthesized existing knowledge about the effects of toxic cyanobacteria on the germination and growth of terrestrial plants. We also aimed to test the chemical effects of a Nostoc (Cyanobacteria) extract on the germination and growth of species of alkali habitats to investigate whether cyanobacteria can alter community structure and diversity via affecting the establishment success of plants.Location: Cyanobacterium colonies from the Hortobágy National Park, east Hungary; indoor experiments at the University of Debrecen, Hungary.Methods: To review the effects of toxic cyanobacteria on terrestrial plants, we conducted a literature search. To test these effects on native plants, field-collected Nostoc colonies were used to prepare a cell-free water extract, and treatments(watering with Nostoc extract and watering with tap water) were tested on 3 - 100 seeds of nine alkali grassland species. After 5 wk, seedling number, seedling length and fresh and dry weights weremeasured.Results: We collected data on the effects of cyanobacteria on 27 species, but they were mostly focused on crops irrigated with cyanobacteria-containing water, not on floras native to natural ecosystems. In the germination experiment species identity and treatment had a significant effect on almost all variables,but their interaction only affected germination rate and fresh weight. Fresh weight decreased significantly only in the invasive Hordeum jubatum, but germination rate decreased significantly in five species.Conclusions: Based on our findings, terrestrial cyanobacterium colonies can affect the establishment success of grassland plants, through which they may be important in determining which species can be incorporated into the community. Thus, cyanobacteriamight play an important role in shaping diversity, species composition and the structure of natural plant communities.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban alkali grasslands allelopathy cyanotoxin germination growth Nostoc plant invasions terrestrial plants
Megjelenés:	Journal Of Vegetation Science. - 28 : 3 (2017), p. 475-483. -
További szerzők:	Valkó Orsolya (1985-) (biológus) Deák Balázs (1978-) (biológus) Miglécz Tamás (1986-) (biológus ökológus) Tóth Katalin Radócz Szilvia (1988-) (biológus) Kelemen András (1986-) (biológus-ökológus) Riba Milán Vasas Gábor (1975-) (biológus-vegyész) Tóthmérész Béla (1960-) (ökológus) Török Péter (1979-) (biológus-ökológus)
Pályázati támogatás:	TÁMOP 4.2.1./B-09/1/KONV-2010- 0024 TÁMOP SROP-4.2.2.B-15/1/ KONV20150001 Egyéb OTKA K116639 Egyéb NKFIH K119647 Egyéb NKFIH K119225 Egyéb OTKA PD 116200 Egyéb
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