Read more about the article Comparing impacts of alien plants and animals using a standard scoring system
Lantana (Lantana camara) is poisonous to humans and animals, and responsible for livestock losses in South Africa

Comparing impacts of alien plants and animals using a standard scoring system

Knowing which species to manage amongst all the species introduced outside of their native ranges is a huge challenge. Many factors play a role in the decision making process, one of the most important ones being whether or not the alien species causes harm to native ecosystems and species, or damages the economy.

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Human population density explains alien species richness in protected areas

Protected areas are increasingly important in the maintenance of species, ecosystems and the services they provide; at the same time, however, invasions by alien species are accelerating, undermining the conservation value of protected areas and preventing them from achieving their goals. If the invasion of alien species into protected areas is to be prevented, or at least minimised, then a detailed understanding of their drivers is required.

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