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001-es BibID:BIBFORM058385
Első szerző:Török Péter (biológus-ökológus)
Cím:New thousand-seed weight records of the Pannonian flora and their application in analysing social behaviour types / P. Török, T. Miglécz, O. Valkó, K. Tóth, A. Kelemen, Á.-J. Albert, G. Matus, A. Molnár V., E. Ruprecht, L. Papp, B. Deák, O. Horváth, A. Takács, B. Hüse, B. Tóthmérész
Dátum:2014
ISSN:0236-6495
Megjegyzések:In the present paper we report original thousand-seed weight data for the flora of the PannonianBasin. Our goal was to demonstrate the usefulness of seed weight databases by analysingseed weight data in relation to social behaviour types and life forms. We specificallyasked the following questions: (i) how the seed weights are related to social behaviourtype categories; (ii) how the life form of the species influences seed weight differencesbetween respective social behaviour types? Own weight measurements are provided for1,405 taxa; and for 187 taxa we published seed weight data for the first time: these weremostly endemics, orchids and/or species with Pontic, Caspian or continental distribution.Several taxonomic or functional groups are underrepresented in our database, like aquaticplants, rare arable weeds and sub-Mediterranean species. Problematic taxa, some difficultto-harvest species or species with low seed production and cultivated adventives are alsounderrepresented. We found that the plant strategies expressed by social behaviour types were significantly different in terms of seed weights. The lowest seed weight scores werefound for natural pioneers, whereas the highest ones were found for adventives and introducedcultivated plants. Short-lived herbaceous species had significantly higher seedweight scores than herbaceous perennials. No significant differences were found betweenspecialists and generalists within the stress tolerant group. We found that short-livedgraminoids possess heavier seeds than perennial graminoids, perennial and annual forbs.Naturalness scores were negatively correlated with seed weights. Our findings showedthat seed collections and databases are not only for storing plant material and seed weightdata, but can be effectively used for understanding ecological trends and testing planttrait-based hypotheses. Even the identified gaps underline the necessity of further seedcollection and measurements.
Tárgyszavak:Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény hazai lapban
competitors
generalists
life form
pioneer species
plant trait
seed mass
weeds
Megjelenés:Acta Botanica Hungarica 55 : 3-4 (2014), p. 429-472. -
További szerzők:Miglécz Tamás (1986-) (biológus ökológus) Valkó Orsolya (1985-) (biológus) Tóth Katalin (1988-) (biológus) Kelemen András (1986-) (biológus-ökológus) Albert Ágnes Júlia (1986-) (ökológus) Matus Gábor (1968-) (botanikus) Molnár V. Attila (1969-) (biológus, botanikus) Ruprecht Eszter Papp László (1958-) (biológus, botanikus) Deák Balázs (1978-) (biológus) Horváth Orsolya Takács Attila (1989-) (biológus, botanikus) Hüse Bernadett (1982-) (biológus) Tóthmérész Béla (1960-) (ökológus)
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