Ecological Invasion

Venetia S. Briggs-Gonzalez, Kyle Allen, Rebecca G. Harvey, yFrank J. Mazzotti
Otros contactos: Eric Suarez yAaron I. Chimelis

Global trade and travel transport plants and animals from native ranges to new ecosystems. About 10–20% of nonnative (exotic, alien) species that arrive in new locales become invasive, meaning they are likely to harm the environment, economy, or public health. Preventing the introduction of invasive species is the most effective way to protect native biodiversity and ecosystem integrity. Once an invader begins to establish and spread, its control costs increase rapidly.

Deah Lieurance and S. Luke Flory

A UF/IFAS numbered Fact Sheet. Published by Integrated Pest Management

Jenna Cole, Melissa A. Miller, Paul Evans, Rosemarie Moore, and Frank J. Mazzotti

Non-native species are animals and plants living outside of their native ranges as a result of human activity. The specific introduction of a species to an area can occur intentionally or unintentionally. A few introduced non-native species will become established (breed) and can become invasive species capable of harming ecosystems, economies, or human health and safety. The establishment of invasive species can follow a trend known as the “invasion curve.” The longer invasive species remain in an area, the more severe their impact, the higher the chance for their distribution, and the greater the expense to manage them. Invasive species like the Burmese python and the lionfish have already harmed Florida Keys ecosystems. The Keys are particularly susceptible to invasion because of their tropical climate, island geography, and abundance of the disturbed habitats that help invasive species establish and spread. Early detection of new species is vital to saving Keys native species.

Rebecca G. Harvey, Justin R. Dalaba, Jenny Ketterlin, Art Roybal, Daniel Quinn, and Frank J. Mazzotti

The Argentine black and white tegu is one of the largest lizard species in the Western Hemisphere, growing up to four feet long. The tegu’s broad habitat use and omnivorous diet create the potential for severe ecological impacts in areas outside its native habitat. This publication presents updated information about efforts to understand and manage the problem of invasive tegus in the state of Florida. It presents the implications of continued expansion of their range.

Sara Salgado MacDonald, Telmah L. Telmadarrehei, yCarey Minteer

Acacia auriculiformis, or earleaf acacia, is a fast-growing invasive tree threatening Florida’s native ecosystems, particularly low-elevation wetlands like the Everglades. Originally introduced as an ornamental, earleaf acacia now displaces native flora, alters nitrogen cycles, and reduces biodiversity. Current mechanical and chemical control methods are costly and limited in scale. Ecological niche modeling shows this species' potential to spread throughout the southeastern United States and other regions. Ongoing research into biological control agents like Trichilogaster sp. offers hope for long-term management. Public engagement, early detection, and education are essential for limiting this invasive species and protecting Florida’s ecosystems.

Rebecca G. Harvey and Frank J. Mazzotti

A UF/IFAS numbered Fact Sheet. in support of UF/IFAS Extension program: Environmental Literacy and Sustainability

Frank J. Mazzotti and Rebecca G. Harvey

A UF/IFAS numbered Fact Sheet.