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001-es BibID:	BIBFORM058384
035-os BibID:	(Scopus)84891626321 (WOS)000329312400006
Első szerző:	Fenesi Annamária
Cím:	Fine-tuned ability to predict future competitive environment in Ambrosia artemisiifolia seeds / Annamária Fenesi, Ágnes-Júlia Albert, Eszter Ruprecht
Dátum:	2014
ISSN:	0043-1737
Megjegyzések:	Competition from native species is a key mechanismfor biotic resistance to invasion. Accelerated germinationto pre-empt resources or delayed germination andinduced dormancy until the next growing season aretwo alternative strategies for annual invasive plants toavoid the drawbacks of competition at the seed stage.In Ambrosia artemisiifolia, both of these tactics couldtheoretically increase its long-term fitness. However,their relative importance has never been tested. Westudied the germination pattern of A. artemisiifoliaseeds in various competitive environments by experimentallymodifying the life stage (seed, seedling,adult), density (low, high) and also the identity (intraspecificand 3 interspecific competitors) of neighbours in controlled conditions. When facing competition ofseeds and seedlings at high densities or of particularidentity, A. artemisiifolia accelerated its germination.In contrast, A. artemisiifolia followed a competitionavoidance strategy in the presence of established adultheterospecific neighbours by delaying germination andreducing the germination fraction through induction ofsecondary dormancy. By testing the seedlings' performancein the same competition situations as those ofseeds, we showed that the germination responses werebeneficial in the case of heterospecific, but not ofconspecific neighbours.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk grassland restoration spontaneous succession abandonment clonal traits acidic sand calcareous sand invasion common ragweed competition plant-plant interaction environmental cueing perception density dependence
Megjelenés:	Weed Research. - 54 : 1 (2014), p. 58-69. -
További szerzők:	Albert Ágnes Júlia (1986-) (ökológus) Ruprecht Eszter
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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