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001-es BibID:	BIBFORM073124
035-os BibID:	(WoS)000431863700002 (Scopus)85045386042
Első szerző:	Fekete Réka (biológus)
Cím:	A hitchhiker from the beach: the spread of the maritime halophyte Cochlearia danica along salted continental roads / Fekete R., Mesterházy A., Valkó O., Molnár V. A.
Dátum:	2018
ISSN:	0032-7786
Megjegyzések:	The increase in road networks facilitates the dispersal of many species of plants along roadsides.In these special habitats, the use of deicing salt can provide suitable habitat conditions for theestablishment of stress-tolerant halophytes. This study investigates the spread of an alienhalophyte Cochlearia danica in continental Europe. This species is native to the Atlantic shoresof Europe, has already spread in many countries along roadsides and was recently discovered inHungary. We performed a literature review to track the European spread of this species, andinvestigated the Hungarian occurrences in detail. Then we determined the ability of this species toadapt to local soil conditions by means of soil analyses and germination tests using 19 differentNaCl concentrations and alkaline soils. To estimate the rate of spread, we estimated the size of thefour Hungarian populations in 2016 and 2017, and at the same time we measured the number offlowering stems, number of flowers in an inflorescence, number of seeds per fruit and seed mass.Cochlearia danica is recorded growing along roadsides in eight countries in continental Europe.Literature data indicate a rapid spread of this species along European roads, of 62?65 km/year.In Hungary this species is recorded at four roadside localities characterized by a high soil saltcontent. The relationship between NaCl concentration and percentage germination followeda sigmoidal curve. Germination tests revealed a significant negative effect of NaCl concentrationon germination above 0.5% NaCl, but germination occurred even on extremely saline substrateswith a 2% NaCl concentration. The area of the largest Hungarian population decreased by morethan 99% and that of the second largest population increased by more than 30% between 2016 and2017. Even though this species can adapt to high salinity in the soil, these rapid and markedchanges in population size indicate that the population dynamics of this species may depend oninteractions between the amount of local precipitation and soil type. Our study indicates that weshould expect further occurrences of C. danica along roads.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Brassicaceae deicing salt NaCl plant invasion roadside verges seed dispersal
Megjelenés:	Preslia. - 90 : 1 (2018), p. 23-37. -
További szerzők:	Mesterházy Attila Valkó Orsolya (1985-) (biológus) Molnár V. Attila (1969-) (biológus, botanikus)
Pályázati támogatás:	OTKA-108992 OTKA NKFI KH 126476 Egyéb NKFI FK 124404 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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