This site offers a complete explanation of how invasive animals and plants impact many of the different things valued by Americans. The economic impact is enormous and estimated to be about $100 billion dollars per year.

One of the major causes of species extinction is the introduction of alien species. Information about ten different invasive species is presented. Find out how well you know the information by matching alien species with the effects...

Define what invasive species are and learn how they may affect the environment. Construct a twelve sided dice with examples of invasive species to help educate others about the topic.

The transport of living plants and animals to areas beyond their native range has been practiced by human beings for thousands of years. While some introductions are intentional, others occur by accident or happenstance. Regardless of...

This site offers a basic explanation of what nonindigenous species are, their environmental and economic impacts, and public health concerns. Specific examples of nonindigenous animals and plants are given and the huge impact they have...

An article that explains the pathways by which non-native fish and wildlife find their way into Florida's ecosystem.

[Free Registration/Login may be required to access all resource tools.] Some of the main ways that habitats are destroyed by human activities are described. Includes two videos and questions about them, as well as review questions.

Periwinkles are a non-native, or invasive, species of mollusk along the eastern coast of Canada and the United States. Learn about their habitat, the history of their invasion, and the kinds of damage they do to their new environment....