George Wuerthner

In the following viewpoint, George Wuerthner, wildlife biologist and freelance writer, argues that introducing exotics into an environment—such as the stocking of lakes with non-native trout—often decimates native plant and animal species. Efforts to mitigate the effects of such introductions often meet with resistance from state agencies and local hunting and fishing enthusiasts, he asserts. Wuerthner maintains that exotics represent the most serious environmental consequence of human activity and calls for united efforts to help return ecosystems to their native states.

As you read, consider the following questions:

1. Why, according to Wuerthner, are some people opposed to getting rid of the boars in Great Smoky Mountains National Park?
2. Why are amphibians in California declining, according to the author?
3. Why is Wuerthner concerned about domestic livestock"

When...