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001-es BibID:	BIBFORM117115
035-os BibID:	(Scopus)85101687611 (cikkazonosító)619812
Első szerző:	Deák Balázs (biológus)
Cím:	Ancient Burial Mounds Provide Safe Havens for Grassland Specialist Plants in Transformed Landscapes- A Trait-Based Analysis / Balázs Deák, Zoltán Rádai, Zoltán Bátori, András Kelemen, Katalin Lukács, Réka Kiss, István Elek Maák, Orsolya Valkó
Dátum:	2021
ISSN:	2296-701X
Megjegyzések:	Due to the intensified land use in transformed landscapes, grassland biodiversity is often restricted to habitat fragments inadequate for arable use or for urban development. In continental parts of Eurasia, the ?600,000 ancient burial mounds (called ?kurgans") built by nomadic tribes of the steppes are amongst the most widespread landmarks providing refuge for dry grassland species. In our study by using plant functional groups and functional traits, we aimed at gaining insight into the ecological and evolutionary processes shaping the structure and the composition of assemblages of grassland specialist plant species on kurgans embedded in the agricultural landscapes of East-Hungary. As a comparison, we also studied roadside verges and pristine extensive grasslands in the same region. We found that despite their small size, due to the lack of human disturbances and high microhabitat diversity kurgans can maintain a high species richness and percentage cover of specialists, especially when compared to verges. We revealed that assemblages of specialist plants on kurgans are characterized by traits typical to terrestrial habitat islands such as self-compatibility, large seed mass and tall stature. Kurgans and extensive grasslands were characterized by higher functional diversity (both at the level of single traits and multi-trait based functional dispersion) which is probably due to the higher level of environmental heterogeneity compared to the homogeneous environment in verges.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk habitat island refuge site verge functional traits phylogenetics conservation environmental heterogeneity steppe
Megjelenés:	Frontiers in Ecology and Evolution. - 9 (2021), p.1-13. -
További szerzők:	Rádai Zoltán (1991-) (biológus) Bátori Zoltán Kelemen András (1986-) (biológus-ökológus) Lukács Katalin (1993-) (biológus) Kiss Réka (1990-) (biológus, ökológus) Maák István Elek Valkó Orsolya (1985-) (biológus)
Pályázati támogatás:	KH 130338 Egyéb FK 135329 Egyéb FK 124404 Egyéb KH 126476 Egyéb K 124796 Egyéb NTP-NFTÖ-20-B-0093 Egyéb KKP 133839 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM073792
035-os BibID:	(WOS)000440138400018 (Scopus)85050822898
Első szerző:	Godó Laura (biológus, ökológus)
Cím:	Ecosystem engineering by foxes is mediated by the landscape context : a case study from steppic burial mounds / Godó Laura, Tóthmérész Béla, Valkó Orsolya, Tóth Katalin, Kiss Réka, Radócz Szilvia, Kelemen András, Török Péter, Švamberková Eva, Deák Balázs
Dátum:	2018
ISSN:	2045-7758
Megjegyzések:	In intensively used landscapes remnant grassland fragments are often restricted to places unsuitable for agricultural cultivation. Such refuges are the ancient burial mounds called 'kurgans', which are typical landscape elements of the Eurasian steppe and forest steppe zone. Due to their hill-like shape, loose soil structure and undisturbed status kurgans provide proper habitats for burrowing mammals. Accordingly, grassland vegetation on kurgans is often exposed to bioturbation, which can influence the habitat structure and plant species pool. In our study we explored the effect of fox burrows and landscape context on the habitat properties and vegetation composition of small landscape elements, using kurgans as model habitats. We surveyed the vegetation of fox burrows and that of the surrounding grassland on five kurgans situated in cleared landscapes surrounded by arable lands, and five kurgans in complex landscapes surrounded by grazed grasslands. We recorded the percentage cover of vascular plants, the amount of litter and soil moisture content in twelve 0.5m?0.5m plots per kurgan, in a total of 120 plots. We found that foxes considerably transformed habitat conditions and created microhabitats by changing the soil nutrient availability and reducing total vegetation cover and litter. Several grassland specialist species, mostly grasses (Agropyron cristatum, Elymus hispidus and Stipa capillata) established in the newly created microhabitats, although the cover of noxious species was also considerable. We found that landscape context influenced the sort of species which could establish on kurgans by affecting the available species pool and soil moisture. Our results revealed that foxes act as ecosystem engineers on kurgans by transforming abiotic and biotic conditions by burrowing. Their engineering activity maintains disturbance-dependent components of dry grasslands and increases local environmental heterogeneity.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk biodiversity disturbance fragmentation isolation kurgan sacred sites steppe weeds
Megjelenés:	Ecology and Evolution. - 8 : 14 (2018), p. 7044-7054. -
További szerzők:	Tóthmérész Béla (1960-) (ökológus) Valkó Orsolya (1985-) (biológus) Tóth Katalin (1988-) (biológus) Kiss Réka (1990-) (biológus, ökológus) Radócz Szilvia (1988-) (biológus) Kelemen András (1986-) (biológus-ökológus) Török Péter (1979-) (biológus-ökológus) Švamberková Eva (1989-) (Biológus) Deák Balázs (1978-) (biológus)
Pályázati támogatás:	OTKA-111807 OTKA 115627 OTKA OTKA-116639 OTKA 116200 OTKA NKFI FK 124404 Egyéb NKFI KH 126476 Egyéb NKFI KH 126477 Egyéb NKFI K 119225 Egyéb Bolyai János Ösztöndíj MTA ÚNKP-17-4-III-DE-160 Egyéb ÚNKP-17-4-III-DE-151 Egyéb
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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