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001-es BibID:	BIBFORM123919
Első szerző:	Kovacsics-Vári Gergely
Cím:	High species richness of sheep-grazed sand pastures is driven by disturbance-tolerant and weedy short-lived species / Gergely Kovacsics-Vári, Judit Sonkoly, Katalin Tóth, Andrea McIntosh-Buday, Patricia Elizabeth Díaz Cando, Viktória Törő-Szijgyártó, Nóra Balogh, Luis Roberto Guallichico Suntaxi, Francis David Espinoza Ami, Gábor Matus, Béla Tóthmérész, Péter Török
Dátum:	2024
ISSN:	2045-7758
Megjegyzések:	We selected 15 sheep-grazed sand pastures along a gradient of increasing grazing intensity to study the fine-scale patterns of main biomass fractions (green biomass, litter) and that of plant species and functional groups (life forms and social behaviour types). We classified them into five grazing intensity levels based on stocking density, proximity to drinking and resting places and the number of faeces. We aimed to answer the following questions: (i) How does increasing intensity of sheep grazing affect the amount of green biomass, the species richness and their relationship in sand pastures? (ii) How does increasing intensity of sheep grazing affect the biomass of perennial and short-lived graminoids and forbs? (iii) How does the disturbance value- expressed in the biomass ratio of disturbance-tolerant and ruderal species-change along the gradient of grazing intensity? A unimodal relationship between green biomass and species richness was detected; however, the ordination (canonical correspondence analysis, CCA) showed no clustering of pastures subjected to the same levels of grazing intensity. Along the grazing intensity gradient we found an increasing trend in species richness and significant differences in green biomass (decreasing trend), litter (decreasing trend), graminoids (decreasing trend) and short-lived forbs (increasing trend). We found an increasing amount of disturbance-tolerant and ruderal species with increasing grazing intensity. We suggest that we might need to use multiple scales for sampling and a fine-scale assessment of grazing intensity. Our findings might be instructive for pastures in densely populated regions, which are prone to the encroachment of disturbance-tolerant and ruderal species.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk disturbance European steppes functional groups humped-back curve plant biomass sheep grazing
Megjelenés:	Ecology and Evolution. - 14 : 9 (2024), p. 1-12. -
További szerzők:	Sonkoly Judit (1989-) (biológus) Tóth Katalin (1988-) (biológus) Buday Andrea Díaz-Cando, Patricia Elizabeth Törő-Szijgyártó Viktória Balogh Nóra (1990-) (okleveles környezetkutató) Guallichico-Suntaxi, Luis Roberto Espinoza-Ami, Francis David Matus Gábor (1968-) (botanikus) Tóthmérész Béla (1960-) (ökológus) Török Péter (1979-) (biológus-ökológus)
Pályázati támogatás:	KKP 144068 OTKA K 137573 OTKA PD 137747 OTKA BO/00587/23/8 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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