1993). There are a number of other well-described examples where keystone species act as determinate predators. Sea otters (i) regulate sea urchin populations, which in turn feed upon kelp and ...

A new study sheds light on the power of keystone species, which could help ecologists in other environments. View on euronews ...

In contrast, keystone species have effects on communities that ... Likewise, in Alaska, sea otter decline has led to an increase in sea urchin abundance and a loss of kelp forest, and this decline ...

More than a decade later, we helped uphold the U.S. Fish and Wildlife Service’s decision to end a program relocating sea otters from a large portion of Southern California waters, including a ...

open image in gallery Sea otters are a keystone species, meaning they help to hold their ecosystem together. But, the otters are threatened by climate change and other hazards (Getty Images ...

Sea otter population growth during the last century has enhanced kelp forest resilience ... Now, new research has found that ...

Glacier Bay’s first recent otter sighting occurred in 1988 ... When the hungry mammals returned, urchins declined, and the undersea forests recovered, to the benefit of fish and other sea life.