Climate Change Brews An Extinction Paradox

Fight disinformation: Sign up for the free Mother Jones Daily newsletter and follow the news that matters.


Climate change could trigger boom-and-bust population cycles making animal species more vulnerable to extinction. Environmental conditions that produce abundant supplies of food and stimulate population booms set the stage for population crashes that occur when several good years in a row are followed by a bad year. “It’s almost paradoxical, because you’d think a large population would be better off, but it turns out they’re more vulnerable to a drop in resources,” says Christopher C. Wilmers of the University of California, Santa Cruz, as reported by EurekAlert. Wilmers’ powerful new mathematical model evaluates how climate and resources interact with populations, finding that dramatic population fluctuations make species more vulnerable to extinction due to disease, inbreeding, and other causes, with each crash reducing the genetic diversity of a species, lowering its ability to adapt and making it more prone to extinction. —Julia Whitty

TIME IS RUNNING OUT!

We have an ambitious $350,000 online fundraising goal this month and it's truly crunch time: About 15 percent of our yearly online giving usually comes in during the final week of the year, and in "No Cute Headlines or Manipulative BS," we explain why we simply can't afford to come up short right now.

The bottom line: Corporations and powerful people with deep pockets will never sustain the type of journalism Mother Jones exists to do. And advertising or profit-driven ownership groups will never make time-intensive, in-depth reporting viable.

That's why donations big and small make up 74 percent of our budget this year. There is no backup to keep us going, no alternate revenue source, no secret benefactor. If readers don’t donate, we won’t be here. It's that simple.

And if you can help us out with a donation right now, all online gifts will be matched thanks to an incredibly generous matching gift pledge.

payment methods

TIME IS RUNNING OUT!

We have an ambitious $350,000 online fundraising goal this month and it's truly crunch time: About 15 percent of our yearly online giving usually comes in during the final week of the year, and in "No Cute Headlines or Manipulative BS," we explain why we simply can't afford to come up short right now.

The bottom line: Corporations and powerful people with deep pockets will never sustain the type of journalism Mother Jones exists to do. And advertising or profit-driven ownership groups will never make time-intensive, in-depth reporting viable.

That's why donations big and small make up 74 percent of our budget this year. There is no backup to keep us going, no alternate revenue source, no secret benefactor. If readers don’t donate, we won’t be here. It's that simple.

And if you can help us out with a donation right now, all online gifts will be matched thanks to an incredibly generous matching gift pledge.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate