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Ecological impacts of invasive alien plants: a meta-analysis of their effects on species, communities and ecosystems.
Overall, alien species impacts are heterogeneous and not unidirectional even within particular impact types, and by the time changes in nutrient cycling are detected, major impacts on plant species and communities are likely to have already occurred.
A biogeographical approach to plant invasions: the importance of studying exotics in their introduced and native range
It is argued that taking a biogeographical approach is key to understanding exotic plant invasions and that increased understanding of invasions has the potential to provide unique insight into fundamental ecological theory, including that on individualistic-holistic structure.
RAPID EVOLUTION OF AN INVASIVE PLANT
Results suggest that introduced plants are evolving adaptations to broad-scale environmental conditions in their introduced range.
Biotic interactions and plant invasions.
It is concluded that species introductions generally alter plants' interactions with enemies, mutualists and competitors, and that there is increasing evidence that these altered interactions jointly influence the success of introduced populations.
When do herbivores affect plant invasion? Evidence for the natural enemies and biotic resistance hypotheses
A review of the evidence for both the natural enemies hypothesis and the biotic resistance hypothesis reveals that: 1) introduced plants can attract a diverse assemblage of native herbivores and that 2) native Herbivores can reduce introduced plant growth, seed set and survival.
Herbivory: effects on plant abundance, distribution and population growth
- J. Maron, E. Crone
- Environmental ScienceProceedings of the Royal Society B: Biological…
- 22 October 2006
It is found larger effects of consumers on grassland than woodland forbs, stronger effects of herbivory in areas with high versus low disturbance, but no systematic or unambiguous differences in the impact of consumers based on plant life-history or herbivore feeding mode.
Soil fungal pathogens and the relationship between plant diversity and productivity.
Soil pathogens might be a heretofore unappreciated driver of diversity-productivity relationships, and suppression of plant productivity by soil fungal pathogens might also drive a positive diversity-Productivity relationship.
A native nitrogen-fixing shrub facilitates weed invasion
It is suggested that repeated bouts of lupine germination, establishment, and death can convert a rich native plant community into a less diverse collection of introduced weeds.
Introduced Predators Transform Subarctic Islands from Grassland to Tundra
It is shown that the introduction of arctic foxes to the Aleutian archipelago induced strong shifts in plant productivity and community structure via a previously unknown pathway.
THE IMPACTS OF A NONINDIGENOUS MARINE PREDATOR IN A CALIFORNIA BAY
The impact of the nonindigenous green crab, Carcinus maenas, on a coastal marine food web in central California is measured and it is found that this predator exerted strong “top-down” control, significantly reducing the abundances of several of the 20 invertebrate species monitored over a 9-yr period.