Reversing expansion of Calamagrostis epigejos in a grassland biodiversity hotspot: Hemiparasitic Rhinanthus major does a better job than increased mowing intensity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73592238" target="_blank" >RIV/61989592:15310/18:73592238 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1111/avsc.12339" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1111/avsc.12339</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/avsc.12339" target="_blank" >10.1111/avsc.12339</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reversing expansion of Calamagrostis epigejos in a grassland biodiversity hotspot: Hemiparasitic Rhinanthus major does a better job than increased mowing intensity

Popis výsledku v původním jazyce

QuestionsCan hemiparasitic Rhinanthus major originating from a local population suppress the competitive clonal grass Calamagrostis epigejos and reverse its expansion in species-rich semi-natural grasslands? Does sowing seeds of R.major facilitate restoration of target meadow vegetation? Is R.major more beneficial for biodiversity restoration/conservation than increased mowing intensity, a conventional measure to suppress C.epigejos? Locationertoryje National Nature Reserve, Bile Karpaty (White Carpathians) Protected Landscape Area, Czech Republic. MethodsWe conducted a before-after-control-impact experiment in meadow patches heavily infested by C.epigejos: eight blocks, each containing four plots with four treatment combinations: (1) traditional management, i.e. mowing once in summer, (2) mowing in summer and autumn (3) mowing in summer and seed sowing of R.major, (4) mowing in summer and autumn and seed sowing of R.major. Above-ground biomass of C.epigejos and vegetation composition of each of the plots were monitored every year from 2013 to 2016. To assess the effects of treatments, we analysed biomass production of C.epigejos, herb layer cover and vegetation composition. ResultsBoth sowing R.major and an additional autumn meadow cut significantly suppressed C.epigejos. Their effects were additive and of comparable size. Both treatments also had significant but markedly different effects on community composition. Rhinanthus major facilitated directional community composition change towards the regional Brachypodio-Molinetum meadows. In contrast, increased mowing intensity significantly decreased frequency of threatened species, which however may have also been influenced by R.major. ConclusionsSowing of autochthonous R.major seeds was demonstrated as an efficient tool to suppress C.epigejos and facilitate community restoration. It can be combined with an additional meadow cut to further accelerate decline of the grass. The additional cut should however be used as a short-term practice (1-2years) only to minimize potential negative effects of its long-term application on some threatened plant species. The effects of R.major are comparable to those of Rhinanthus alectorolophus reported previously. As a species occurring naturally in species-rich dry grasslands, R.major has a broader and longer-term application potential than R.alectorolophus in ecological restoration and conservation of these communities.

Název v anglickém jazyce

Reversing expansion of Calamagrostis epigejos in a grassland biodiversity hotspot: Hemiparasitic Rhinanthus major does a better job than increased mowing intensity

Popis výsledku anglicky

QuestionsCan hemiparasitic Rhinanthus major originating from a local population suppress the competitive clonal grass Calamagrostis epigejos and reverse its expansion in species-rich semi-natural grasslands? Does sowing seeds of R.major facilitate restoration of target meadow vegetation? Is R.major more beneficial for biodiversity restoration/conservation than increased mowing intensity, a conventional measure to suppress C.epigejos? Locationertoryje National Nature Reserve, Bile Karpaty (White Carpathians) Protected Landscape Area, Czech Republic. MethodsWe conducted a before-after-control-impact experiment in meadow patches heavily infested by C.epigejos: eight blocks, each containing four plots with four treatment combinations: (1) traditional management, i.e. mowing once in summer, (2) mowing in summer and autumn (3) mowing in summer and seed sowing of R.major, (4) mowing in summer and autumn and seed sowing of R.major. Above-ground biomass of C.epigejos and vegetation composition of each of the plots were monitored every year from 2013 to 2016. To assess the effects of treatments, we analysed biomass production of C.epigejos, herb layer cover and vegetation composition. ResultsBoth sowing R.major and an additional autumn meadow cut significantly suppressed C.epigejos. Their effects were additive and of comparable size. Both treatments also had significant but markedly different effects on community composition. Rhinanthus major facilitated directional community composition change towards the regional Brachypodio-Molinetum meadows. In contrast, increased mowing intensity significantly decreased frequency of threatened species, which however may have also been influenced by R.major. ConclusionsSowing of autochthonous R.major seeds was demonstrated as an efficient tool to suppress C.epigejos and facilitate community restoration. It can be combined with an additional meadow cut to further accelerate decline of the grass. The additional cut should however be used as a short-term practice (1-2years) only to minimize potential negative effects of its long-term application on some threatened plant species. The effects of R.major are comparable to those of Rhinanthus alectorolophus reported previously. As a species occurring naturally in species-rich dry grasslands, R.major has a broader and longer-term application potential than R.alectorolophus in ecological restoration and conservation of these communities.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Vegetation Science

ISSN

1654-109X

e-ISSN

—

Svazek periodika

21

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

104-112

Kód UT WoS článku

000425120600012

EID výsledku v databázi Scopus

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