2008
Plant attributes determining the regional abundance od weeds on central European arable land
LOSOSOVÁ, Zdeňka, Milan CHYTRÝ a Ingolf KÜHNZákladní údaje
Originální název
Plant attributes determining the regional abundance od weeds on central European arable land
Název česky
Druhové vlastnosti určující abundanci polních plevelů ve střední Evropě
Autoři
LOSOSOVÁ, Zdeňka (203 Česká republika, garant, domácí), Milan CHYTRÝ (203 Česká republika, domácí) a Ingolf KÜHN (276 Německo)
Vydání
Journal of Biogeography, Oxford, Blackwell Science, 2008, 0305-0270
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.566
Kód RIV
RIV/00216224:14310/08:00024594
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000251587500013
Klíčová slova anglicky
Commonness; Czech Republic; flowering time; geographical range size; habitat range; nutrient requirements; phylogeny; rarity; regression trees; species traits
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 23. 9. 2012 13:36, prof. RNDr. Milan Chytrý, Ph.D.
V originále
Aim Several recent studies have aimed to identify the biological, ecological and distributional attributes that determine the regional abundance of plant species. Here we aim to assess the relationships between regional abundance and species attributes in weeds on arable land. Location Czech Republic, central Europe. Methods The relationships between regional abundance and species attributes were studied with a data set of 381 weed species occurring on arable land in the Czech Republic. Regional species abundances were estimated from their occurrence frequency in vegetation plots distributed across the country. Using regression tree models, abundance was related to the biological traits, ecological indicator values, geographical distribution and habitat range of species. The models were calculated for the entire country and separately for weeds in cereals, root crops, lowlands and uplands. The effects of phylogenetic relatedness among species on their regional abundance were quantified and compared with the effects of species attributes. Results The results were similar for the whole data set and its particular subsets. Phylogeny explained 11.2 to 14.9% and species attributes 16.1 to 56.9% of the variation in regional abundance of weed species. Removal of the phylogenetic signal did not result in important changes in the effects of particular attributes. The most abundant species were those flowering in prespring and early spring, adapted to low temperatures, relatively shade tolerant and with high nutrient requirements. The high regional abundance of these species positively correlated with their broad geographical (often circumpolar) distribution and broad habitat ranges. Main conclusions The regional abundance of weeds can, to some extent, be explained by their attributes. The most important attributes are those that enable weeds to grow and reproduce in the cool season when there is limited competition with crop plants, and those that are adaptations to growth in dense vegetation stands and highly productive habitats.
Česky
Cílem práce bylo zjistit vztah mezi hojností druhu a jeho biologickými a distribučními charakteristikami.
Návaznosti
GA206/05/0020, projekt VaV |
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MSM0021622416, záměr |
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