Invasive species are non-native species that have been introduced to an area outside of their natural range and have become a threat to native ecosystems.

Invasive species are often introduced through human activities such as trade, travel, and agriculture.

Invasive species can have a variety of negative impacts on native ecosystems, including competition for resources, predation and herbivory, and hybridization with native species, but they do not typically increase biodiversity.

Colonization is the process by which invasive species become established in a new environment and begin to reproduce and spread.

Habitat modification is not a direct method for controlling the spread of invasive species, although it can be used to reduce the suitability of an environment for invasive species.

Biological control involves the introduction of natural enemies, such as predators, parasites, or pathogens, to control invasive species.

Biological control can have unintended impacts on non-target species, lead to the evolution of resistance in invasive species, and may become less effective over time, but it does not typically increase biodiversity.

Ecological impact refers to the changes that invasive species cause to the structure and function of native ecosystems.

Invasive species can have a variety of negative economic impacts, including reduced agricultural productivity, increased healthcare costs, and damage to infrastructure, but they do not typically increase tourism revenue.

Invasive potential refers to the ability of an invasive species to establish and spread in a new environment.

Native status is not a factor that contributes to the invasive potential of a species, as invasive species are by definition non-native.

Naturalization is the process by which invasive species become established in a new environment and begin to behave like native species.

Invasive species can have a variety of negative impacts on human health, including transmission of diseases, allergies and asthma, and poisoning, but they do not typically increase physical fitness.

Homogenization is the process by which invasive species reduce the diversity of native species by replacing them with a smaller number of more dominant species.

Invasive species can have a variety of negative impacts on native species, including competition for resources, predation and herbivory, and hybridization with invasive species, but they do not typically increase genetic diversity.