A keystone in an arch's crown secures the other stones in place. Keystone species play the same role in many ecological communities by maintaining the structure and integrity of the community.

In a subsequent paper, he designated the Pisaster starfish a “keystone species,” referring to an architectural keystone: the wedge-shaped stone atop an arch that, once inserted, prevents the ...

Human-beaver conflicts surfaced concerning vegetation and tree damage, safety concerns of tripping over stumps of felled trees, blocked road culverts, and flooding, which potentially undermines ...

exerting a strong influence over the occurrence and distribution of other species. In contrast, keystone species have effects on communities that far exceed their abundance. That is to say ...

When sea otters were reintroduced along the coastlines of islands in Southern California and British Columbia, researchers saw kelp forests return to areas that were destroyed by sea urchins.

New modeling method helped researchers understand why kelp forests returned more slowly in Southern California than in British Columbia. When sea otters were reintroduced along the coastlines of ...