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Beavers, large members of the rodent family in North America, are often referred to as ecosystem/keystone engineers by wildlife managers. Ecosystem engineers are described as animals that create,

Beavers, large members of the rodent family in North America, are often referred to as ecosystem/keystone engineers by wildlife managers. Ecosystem engineers are described as animals that create,

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Beavers, large members of the rodent family in North America, are often referred to as ecosystem/keystone engineers by wildlife managers. Ecosystem engineers are described as animals that create, alter, or destroy a habitat. Beavers contribute to river ecosystems by bringing down old and dead trees along riverbanks. They use these trees to make their dams. Although these dams are primarily used for protection and food storage, scientists report that these dams change the surrounding environment in different ways. Given the information, in three to five sentences, describe a potential benefit that beavers contribute to the ecosystem as keystone engineers and describe a plausible impact that the removal of beavers could have on the surrounding ecosystem.
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