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Description
  • V druhově bohaté louce (53-65 druhů cévnatých rostlin na ploše 1,1 m2) byl studován význam nedostatku diaspor, způsobený jejich omezeným šířením, u náhodně vysetých plevelů. Přestože ani jeden z vysetých druhů se přirozeně na lokalitě nevyskytuje, 5 druhů se na ploše uchytilo. Jeden z nich přežíval po 7 let, ovšem jeho početnost klesla z 41 rostlin zaznamenaných v roce 1995 na 1 rostlinu v roce 2001. Tato data mohou být interpretována jako důkaz krátkodobé limitace diasporami. Dlouhodobý pohled však naznačuje, že tato data lze interpretovat i přesně opačně. Uchycení plevelů bylo pravděpodobnější v ploškách s nižším počtem druhů a jedinců, což znamená, že již přítomné rostliny ovlivňují generativní regeneraci. (cs)
  • Dispersal limitation was studied in a species-rich meadow (53-65 species of vascular plants per 1.1 m2) to which a mixture of weeds was accidentally sown. Even if none of the sown species belonged to the local species pool, five species successfully established. Of them one persisted for 7 years, however declined from 41 individuals in 1995 to 1 individual recorded in 2001. These results can be interpreted as an evidence for short-term diaspore limitation. In contrast, long-term data indicate no diaspore limitation. Establishment of weeds in subplots with a lower number of species and individuals was higher than in other subplots, indicating that plant establishment in the studied open-canopy grassland is affected by the spatial pattern of present plants.
  • Dispersal limitation was studied in a species-rich meadow (53-65 species of vascular plants per 1.1 m2) to which a mixture of weeds was accidentally sown. Even if none of the sown species belonged to the local species pool, five species successfully established. Of them one persisted for 7 years, however declined from 41 individuals in 1995 to 1 individual recorded in 2001. These results can be interpreted as an evidence for short-term diaspore limitation. In contrast, long-term data indicate no diaspore limitation. Establishment of weeds in subplots with a lower number of species and individuals was higher than in other subplots, indicating that plant establishment in the studied open-canopy grassland is affected by the spatial pattern of present plants. (en)
Title
  • A transient expansion of sown plants and diaspore limitation
  • Přechodná expanze vysetých rostlin a limitace diasporami (cs)
  • A transient expansion of sown plants and diaspore limitation (en)
skos:prefLabel
  • A transient expansion of sown plants and diaspore limitation
  • Přechodná expanze vysetých rostlin a limitace diasporami (cs)
  • A transient expansion of sown plants and diaspore limitation (en)
skos:notation
  • RIV/67985939:_____/05:00026233!RIV06-AV0-67985939
http://linked.open.../vavai/riv/strany
  • 69;75
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA206/01/1037), P(GA206/97/0937), Z(AV0Z6005908)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 511134
http://linked.open...ai/riv/idVysledku
  • RIV/67985939:_____/05:00026233
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Diaspore limitation; Long-term study; Species-rich meadow (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CZ - Česká republika
http://linked.open...ontrolniKodProRIV
  • [1A3527E81902]
http://linked.open...i/riv/nazevZdroje
  • Journal of Arachnology
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 40
http://linked.open...iv/tvurceVysledku
  • Klimeš, Leoš
http://linked.open...n/vavai/riv/zamer
issn
  • 1211-9520
number of pages
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