Effects of Exotic Plant Invasions on Soil Nutrient Cycling Processes

@article{Ehrenfeld2002EffectsO,
  title={
Effects of Exotic Plant Invasions on Soil Nutrient Cycling Processes
},
  author={Joan G. Ehrenfeld},
  journal={Ecosystems},
  year={2002},
  volume={6},
  pages={503-523}
}
  • J. Ehrenfeld
  • Published 9 September 2003
  • Environmental Science
  • Ecosystems
Although it is generally acknowledged that invasions by exotic plant species represent a major threat to biodiversity and ecosystem stability, little attention has been paid to the potential impacts of these invasions on nutrient cycling processes in the soil. The literature on plant–soil interactions strongly suggests that the introduction of a new plant species, such as an invasive exotic, has the potential to change many components of the carbon (C), nitrogen (N), water, and other cycles of… 

Implications of Invasive Species for Belowground Community and Nutrient Processes1

TLDR
The usefulness of plant traits for assessing and predicting the effects of exotic species invasions on ecosystem processes requires further research on basic aspects of plant–soil interactions, but results suggest that such an approach may prove useful for managing invasions.

Invasive plants accelerate nitrogen cycling: evidence from experimental woody monocultures

TLDR
The results highlight the importance of linking above and below-ground processes to better understand invader impacts on ecosystem nutrient processes and suggest that invaders may be an important driver of forest ecosystem functioning.

Effects of Exotic Species on Soil Nitrogen Cycling: Implications for Restoration1

TLDR
It is suggested that exotic species that are capable of altering soil nitrogen pools, whether by augmenting ecosystem N through fixation of atmospheric N or by increasing rates of N losses, have the greatest capacity to interfere with restoration efforts.

The impact of exotic grass invasions on nitrogen cycling: a mini-review

TLDR
While grass invasion commonly led to increases in biomass, there werefew consistent effects on plant and soil N pools and fluxes, suggesting that environmental factors such as soil moisture, soil type and native community composition may play a significant role in the magnitude and direction of the impact of exotic grasses on N.

Biotic interactions drive ecosystem responses to exotic plant invaders

TLDR
Novel biological interactions with exotic species are a more important driver of ecosystem transformation than was previously recognized and underpin ecosystem transformations in carbon cycling rates.

Plant invasion alters nitrogen cycling by modifying the soil nitrifying community.

TLDR
It is hypothesized that belowground changes to the soil microbial community provide a mechanistic link between exotic plant invasion and changes to ecosystem nutrient cycling.

Soil biota can change after exotic plant invasion: Does this affect ecosystem processes?

TLDR
Invasion of the exotic annual grass Bromus tectorum into stands of the native perennial grass Hilaria jamesii significantly reduced the abundance of soil biota, especially microarthropods and nematodes, although populations generally increased after 50+ years of invasion.

Exotic invasive plants increase productivity, abundance of ammonia‐oxidizing bacteria and nitrogen availability in intermountain grasslands

TLDR
This research presents a probabilistic analysis of the response of Yellowstone grizzly bears to the presence of infectious disease and its effects on their numbers and habits.

Consequences of plant–soil feedbacks in invasion

TLDR
It is concluded that the empirically measured PSFs between native and exotic plant species are often not consistent with predictions of the spread of exotic species and mono-dominance.

What explains variation in the impacts of exotic plant invasions on the nitrogen cycle? A meta-analysis.

TLDR
Overall, plant invasions increased N pools and accelerated fluxes, even when excluding N-fixing invaders, and it is shown that more functionally distant invaders occurring in mild climates are causing the strongest alterations to the N cycle.
...

References

SHOWING 1-10 OF 165 REFERENCES

EXOTIC PLANT INVASION ALTERS NITROGEN DYNAMICS IN AN ARID GRASSLAND

The introduction of nonnative plant species may decrease ecosystem stability by altering the availability of nitrogen (N) for plant growth. Invasive species can impact N availability by changing

Effects of invasive, non-indigenous plant species on ecosystem processes: lessons from Florida.

TLDR
It is suggested that ecosystem alteration may be relatively common among invasive non-indigenous species and where ecosystem processes have been altered, site restoration likely will require both control of the invader(s) and recovery of processes.

CHANGES IN SOIL FUNCTIONS FOLLOWING INVASIONS OF EXOTIC UNDERSTORY PLANTS IN DECIDUOUS FORESTS

TLDR
Soils directly beneath each of the two exotics had higher pH values and higher nitrification rates and often had higher net N mineralization rates than did soils beneath adjacent patches of the most common native understory shrub, Vaccinium pallidum; these differences could be replicated in the greenhouse by growing the exotics in previously uninhabited areas.

Impacts of Invasive Plants on Community and Ecosystem Properties

TLDR
Assessing whether the invaders have significantly altered the ecosystem from its preinvasion condition, recognizing and measuring specific community and ecosystem properties potentially being altered by the invader, and developing strategies that return communities and the associated ecosystem processes to the preinvasions state are required.

ALTERATION OF ECOSYSTEM NITROGEN DYNAMICS BY EXOTIC PLANTS: A CASE STUDY OF C4 GRASSES IN HAWAII

Biological invaders can alter ecosystem processes via multiple pathways, yet few studies have compared the relative importance of these pathways. We assessed the impacts of exotic, invasive grasses

INTERACTIONS BETWEEN INDIVIDUAL PLANT SPECIES AND SOIL NUTRIENT STATUS IN SHORTGRASS STEPPE

TLDR
That local plant-induced patterns in soil properties significantly affect ecosystem scale estimates of these properties indicates that consideration of structural attributes, particularly plant cover patterns, is critical to estimates of ecosystem function in shortgrass steppe.

EFFECTS OF SOIL RESOURCES ON PLANT INVASION AND COMMUNITY STRUCTURE IN CALIFORNIAN SERPENTINE GRASSLAND

TLDR
Observed changes in community structure and composition demonstrate that the invasibility of plant com- munities may be directly influenced by nutrient availability, independent of physical dis- turbance.

Species effects on nitrogen cycling: a test with perennial grasses

TLDR
If individual plant species can affect N mineralization and N availability, then competition for N may lead to positive or negative feedbacks between the processes controlling species composition and ecosystem processes such as N and C cycling.

BIOGEOCHEMICAL IMPACT OF HIERACIUM INVASION IN NEW ZEALAND'S GRAZED TUSSOCK GRASSLANDS: SUSTAINABILITY IMPLICATIONS

The establishment and spread of invasive plants could be enhanced by plant–soil feedbacks that alter the cycling of biologically important elements. In New Zealand, overgrazing of tussock grasslands
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