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Supporting biodiversity by prescribed burning in grasslands — A multi-taxa approach

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Tartalom: http://real.mtak.hu/42668/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published

Type = Article
Cím:
Supporting biodiversity by prescribed burning in grasslands — A multi-taxa approach
Létrehozó:
ValkĂł, Orsolya
Deák, Balázs
Magura, Tibor
Török, Péter
Kelemen, András
TĂłth, Katalin
Horváth, Roland
Nagy, D. Dávid
Debnár, Zsuzsanna
Zsigrai, György
Kapocsi, István
Tóthmérész, Béla
Kiadó:
Elsevier
Dátum:
2016
Téma:
QH540 Ecology / ökológia
QK30 Plant ecology. Plant ethology / növényökológia
Tartalmi leírás:
There are contrasting opinions on the use of prescribed burning management in European grasslands. On the one
hand, prescribed burning can be effectively used for the management of open landscapes, controlling dominant
species, reducing accumulated litter or decreasingwildfire risk. On the other hand burning can have a detrimental
impact on grassland biodiversity by supporting competitor grasses and by threatening several rare and endangered
species, especially arthropods.We studied the effects of prescribed burning in alkaline grasslands of high
conservation interest. Our aim was to test whether dormant-season prescribed burning can be an alternative
conservation measure in these grasslands. We selected six sites in East-Hungary: in three sites, a prescribed
fire was applied in November 2011, while three sites remained unburnt. We studied the effects of burning on
soil characteristics, plant biomass and on the composition of vegetation and arthropod assemblages (isopods, spiders,
ground beetles and rove beetles). Soil pH, organic matter, potassium and phosphorous did not change, but
soluble salt content increased significantly in the burnt sites. Prescribed burning had several positive effects from
the nature conservation viewpoint. Shannon diversity and the number of flowering shoots were higher, and the
cover of the dominant grass Festuca pseudovinawas lower in the burnt sites. Graminoid biomasswas lower,while
total, green and forb biomasswere higher in the burnt plots compared to the control. The key finding of our study was that prescribed burning did not decrease the abundance and diversity of arthropod taxa. Species-level analyses
showed that out of themost abundant invertebrate species, 10were not affected, 1was negatively and 1was
positively affected by burning. Moreover, our results suggest that prescribed burning leaving unburnt patches
can be a viable management tool in open landscapes, because it supports plant diversity and does not threaten
arthropods.
Nyelv:
magyar
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Valkó, Orsolya and Deák, Balázs and Magura, Tibor and Török, Péter and Kelemen, András and Tóth, Katalin and Horváth, Roland and Nagy, D. Dávid and Debnár, Zsuzsanna and Zsigrai, György and Kapocsi, István and Tóthmérész, Béla (2016) Supporting biodiversity by prescribed burning in grasslands — A multi-taxa approach. SCIENCE OF THE TOTAL ENVIRONMENT, 572. pp. 1377-1384. ISSN 0048-9697
Kapcsolat:
10.1016/j.scitotenv.2016.01.184