Defenders' Experts

Media Contacts

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Invasive Species Resources

Defenders of Wildlife Resources:

Report
Broken Screens: The Regulation of Live Animal Imports in the United States

Defenders' major new report, released August 1, 2007, details the failures of the regulatory system for live, wild animal imports in the United States.

This report is an unprecedented examination of the low level of protection given by the lax U.S. system from the risks that non-native animal species pose to our environment and to public health.
View the full report and supporting information.

Article from Northwestern Naturalist
Vol. 87, No. 1, pp. 43–55
Invasive Species in the Northwestern United States: Threats to Wildlife, and Defenders of Wildlife's Recommendation for Prevention Policies

by Aimee Delach, Senior Science Associate, Defenders of Wildlife
Abstract: Invasive alien species have long been recognized as a leading threat to biological diversity, contributing to the decline of nearly half of the imperiled species in the United States for which threat information is available. This paper discusses some of the invasive species that threaten imperiled wildlife in the western United States, including endemic birds in San Francisco Bay, sage grouse, and grizzly bears. I present 3 examples of the difficulties inherent in balancing the need to close pathways of invasive species entry with maintaining active international and interstate trade (wood packing materials, ballast water, and the nursery trade) and I present Defenders of Wildlife's policy recommendations in these areas.
Request a copy of the article.