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Related Experiment Video

Updated: May 13, 2026

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity
08:16

Experimental Protocol for Manipulating Plant-induced Soil Heterogeneity

Published on: March 13, 2014

Environmental variability promotes plant invasion.

Madalin Parepa1, Markus Fischer, Oliver Bossdorf

  • 1Department of Biology, Institute of Plant Sciences, University of Bern, Bern 3013, Switzerland.

Nature Communications
|March 21, 2013
PubMed
Summary
This summary is machine-generated.

Increased soil nutrient variability significantly boosts invasive plant success, like Japanese knotweed. This highlights how environmental changes can accelerate ecological shifts and plant invasions.

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Area of Science:

  • Ecology
  • Environmental Science
  • Plant Biology

Background:

  • Global environmental change encompasses shifts in average conditions and their variability.
  • Altered climate variability impacts disturbance regimes and resource availability.
  • Plant invasions are a significant ecological consequence of global change.

Purpose of the Study:

  • To investigate the impact of increased soil nutrient variability on plant invasion success.
  • To determine if nutrient variability enhances the dominance of invasive species like Japanese knotweed.

Main Methods:

  • Experimental plant communities were established.
  • Nutrient supply was manipulated to create variable (pulsed) and uniform conditions.
  • The success of Japanese knotweed (Fallopia japonica) was quantified under different nutrient regimes.

Main Results:

  • Japanese knotweed success was two- to four-fold higher under variable nutrient supply (single or multiple pulses) compared to uniform supply.
  • Increased nutrient variability significantly promoted the invasive success of Japanese knotweed.

Conclusions:

  • Variable soil nutrient availability is a key driver promoting plant invasion.
  • The ability to exploit variable environments may explain the dominance of invasive species.
  • Changes in environmental variability can interact with other global change factors to accelerate ecological change.