Keystone species - Wikipedia, the free encyclopedia "The role that a keystone species plays in its ecosystem is analogous to the role of a keystone in an arch. While the keystone is under the least pressure of any of the stones in an arch, the arch still collapses without it. Similarly, an ecosystem may experience a dramatic shift if a keystone species is removed, even though that species was a small part of the ecosystem by measures of biomass or productivity."

Wolves - Keystone Species Infographic. This infographic is from Earthjustice.org and is available as a high resolution pdf. http://earthjustice.org/sites/default/files/files/infographic-wolves_earthjustice.pdf

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Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades | HHMI BioInteractive

Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades | HHMI BioInteractive

Keystone species are the species which are critical in maintaining the relationship of an ecosystem. Consider these examples of keystone species to understand more.

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Wolves - Keystone Species Infographic. This infographic is from Earthjustice.org and is available as a high resolution pdf. http://earthjustice.org/sites/default/files/files/infographic-wolves_earthjustice.pdf

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▶ Keystone Species and Their Role in Ecosystems - YouTube

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Already known as a keystone species research shows that beavers in North America can also sink excess nitrogen in the watershed

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