Sea urchins climb onto kelp when their densities are so high they remove all drift kelp and then actively forage on attached, living kelp. (Credit: Steve Lonhart / NOAA MBNMS) Tipping points are the ...

For decades, ecologists have puzzled over a mystery: Why do some natural habitats get overrun by invasive species while others seem to repel outside threats? In a classic 1958 book on the subject, the ...

Ecosystem restoration projects aim to restore biodiversity and associated compromised ecosystem services. Evidence is persuasive of the increased risks of zoonotic diseases with degradation and ...

The sky above us is a complex ecosystem, just like the land and sea. A new field of research is bringing a fresh understanding of the birds, bugs and other species that live there Dustin Partridge of ...

If you liked this story, share it with other people. The forests of northern Europe provided Tim Christophersen with his first education. As a child in rural Germany he followed his grandfather, a ...