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  2. Invasive species - Wikipedia

    en.wikipedia.org/wiki/Invasive_species

    Invasive species can affect human health. With the alteration in ecosystem functionality (due to homogenization of biota communities), invasive species have resulted in negative effects on human well-being, which includes reduced resource availability, unrestrained spread of human diseases, recreational and educational activities, and tourism.

  3. Forest disturbance by invasive insects and diseases in the ...

    en.wikipedia.org/wiki/Forest_disturbance_by...

    Non-native invasive species can disrupt ecosystems because they do not have natural predators, or other ecological checks-and-balances. Thus, with less competition from native species, non-native populations can explode. [9] Invasive insects and pathogens have eliminated entire tree species from forests of the United States in as little as decades.

  4. Disturbance (ecology) - Wikipedia

    en.wikipedia.org/wiki/Disturbance_(ecology)

    Not only invasive species can have a profound effect on an ecosystem, but also naturally occurring species can cause disturbance by their behavior. Disturbance forces can have profound immediate effects on ecosystems and can, accordingly, greatly alter the natural community’s population size or species richness. [2]

  5. Invasive species in the United States - Wikipedia

    en.wikipedia.org/wiki/Invasive_species_in_the...

    The economic impacts of invasive species can be difficult to estimate especially when an invasive species does not affect economically important native species. This is partly because of the difficulty in determining the non-use value of native habitats damaged by invasive species and incomplete knowledge of the effects of all of the invasive species present in the U.S. Estimates for the ...

  6. Climate change and invasive species - Wikipedia

    en.wikipedia.org/wiki/Climate_change_and...

    The increased temperature and shorter duration of cold temperature will increase the probability of invasive species in the ecosystem, because the winter hypoxia that prevents the species' survival will be eliminated. [20] This is the case with the brook trout that is an invasive species in lakes and streams in Canada.

  7. Human impact on the environment - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_the...

    Invasive species are defined by the U.S. Department of Agriculture as non-native to the specific ecosystem, and whose presence is likely to harm the health of humans or the animals in said system. [140] Introductions of non-native species into new areas have brought about major and permanent changes to the environment over large areas.

  8. Invasive earthworms of North America - Wikipedia

    en.wikipedia.org/wiki/Invasive_earthworms_of...

    Invasive earthworms have caused a decrease in diversity, seedling populations, forest floor organic matter volume, and overall habitat quality. In addition, there is often an increase in invasive species and a decreased diversity of non-plant organisms. Some species that provide important biological niches to the ecosystem may be eradicated.

  9. Edge effects - Wikipedia

    en.wikipedia.org/wiki/Edge_effects

    The changes in temperature, humidity and light levels promote invasion of non-forest species, including invasive species. The overall effect of these fragment processes is that all forest fragments tend to lose native biodiversity depending on fragment size and shape, isolation from other forest areas, and the forest matrix. [11]