Biodiversity graphics impacted by presence of invasive species

How does the presence of invasive species affect biodiversity?


Biodiversity refers to the diversity of organisms and habitats. Invasive species are alien species that colonise and spread in areas other than their natural habitat. The presence of invasive species can have a major impact on biodiversity and it is therefore important to understand how they affect their environment.

Impacts on native species

Invasive species often compete with native species for food, nesting sites and nutrients. This competition often leads to the extirpation of native species as invasive species aggressively spread and suppress native species. This leads to a reduction in the diversity of native species, which can have negative long-term effects on the ecosystem.

Effects on ecosystems

Invasive species have the potential to alter the structure and functioning of ecosystems. For example, if an invasive plant species spreads through an area, it may be able to displace native plant species, altering the food chain and ecological processes. Changes caused by invasive species can have negative impacts on the stability and functioning of ecosystems.

Economic impacts

The presence of invasive species can have serious economic impacts. For example, invasive plants can cause significant damage to agricultural land by suppressing crops and reducing yields. Invasive species can also cause damage to infrastructure, such as dams and power grids. These economic impacts can have serious costs for society.


The presence of invasive species has a significant impact on biodiversity. Displacement of native species, changes to ecosystems and economic damage are all problems that need to be addressed. Preventing the spread of invasive species and protecting native species is key to conserving biodiversity.

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