Predators

Cougar Lessons in Coexistence

 Cougar Lessons in Coexistence

A growing North American cougar population has inspired scientists to take a close look at the risk this species presents to humans. In his 2011 analysis of 343 North American aggressive cougar encounters, David Mattson found that only 29 resulted in fatal human attacks.

Are Large Carnivores Doomed by Climate Change?

 Are Large Carnivores Doomed by Climate Change?

he world is getting warmer, creating an extinction threat for many species. According to NASA, since 1880 the Earth’s global temperature has risen by nearly one degree Celsius.

Recovery of the Great Bear?

 Recovery of the Great Bear?

As was the case for other large carnivores in the lower 48 United States, by the 1960s grizzly bears were nearly extinct. This species had dropped to less than 2 percent of its former range south of Canada and occurred in six small, discrete populations, totaling 800-1,000 individuals.

Of Lynx, Traps, and Lawsuits: The Rocky Road to Enlightened Wildlife Conservation

Of Lynx, Traps, and Lawsuits: The Rocky Road to Enlightened Wildlife Conservation

The lynx is one of the most at-risk carnivores in the United States. South of the US-Canada border, this elusive species’ population may be as low as a few hundred individuals. In 2000, the federal government acted by listing it as threatened in portions of the US, under the Endangered Species Act (ESA). Steps to recover lynx have included reintroduction.

Endangered Species Act Caught in Congressional Crosshairs

 Endangered Species Act Caught in Congressional Crosshairs

The most powerful environmental law on Earth, the Endangered Species Act (ESA), is under the gravest assault it has ever faced. Last week I spent time in Washington, DC briefing US congressional leaders on ESA threats and brainstorming about how to safeguard this venerable law.

El Lobo’s Uncertain Future

 El Lobo’s Uncertain Future

In 1977, the U.S. Fish and Wildlife Service (USFWS) contracted Roy McBride to capture wild Mexican wolves in Mexico to begin a breeding program for this nearly extinct subspecies of gray wolf.