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Once Glen Canyon Dam was completed in 1963, the Colorado River in its passage through the Grand Canyon would never be the same. Now sealed off at both ends, the Colorado has been transformed into a carefully-tended aquarium, its flow of water controlled and monitored. The effect on the Canyon's physical and biological systems has been extraordinary.Steven Carothers and Bryan Brown—both veteran river runners and scientists—draw on river history and ecological studies to demonstrate how Canyon life has adjusted to these sweeping environmental alterations. For example, they show how increased growth of algae in the now siltless waters have altered fish populations, and how changes in vegetation have encouraged the return of beavers. Insects, birds, reptiles—all have been affected as the Canyon's ecosystem has been redefined by changes in the river's content, temperature, and flow.Recreational use of the Canyon has been altered as well. For the thousands of people who raft down the river each year, the dam has brought the need to account for diurnal rather than seasonal alterations in water flow, as well as the likelihood that changes in debris flow will make rapids increasingly difficult to run. The trapping of silt behind the dam also means that river beaches now wash away without being restored from upstream.The authors warn that these changes may disappoint those who expect the Colorado to represent an untouched wilderness river; yet the new Colorado remains a source of inspiration for all who visit it. In that spirit, they propose a new vision for ecosystem management in the Canyon that would strike a balance between environmental needs, water storage, and hydroelectric power generation, so that "by understanding these recent changes in the river, perhaps we will be able to shape the river of the future for the better."
"Carothers and Brown, both research biologists and river runners who have spent more than six years in the Grand Canyon, have drawn upon these studies, many unpublished sources, their own extensive research, and Grand Canyon histories for this superbly written natural history." —Journal of the West"The Colorado River Through Grand Canyon, by Steven W Carothers and Brian Brown, is a worthwhile addition to the growing information base needed by the public to understand how our national treasures are managed by public agencies." —American Scientist
Title: The Colorado River Through Grand Canyon: ...
Publisher: University of Arizona Press
Publication Date: 1991
Book Condition: Good
Edition: First Paperback.
Book Description University of Arizona Press. Paperback. Condition: Good. A copy that has been read, but remains in clean condition. All pages are intact, and the cover is intact. The spine may show signs of wear. Pages can include limited notes and highlighting, and the copy can include previous owner inscriptions. At ThriftBooks, our motto is: Read More, Spend Less. Seller Inventory # G0816512329I3N00
Book Description Brand: Univ of Arizona Pr, 1991. Paperback. Condition: GOOD. Has little wear to the cover and pages. Contains some markings such as highlighting and writing. Supplemental materials are not guaranteed with any used book purchases. Seller Inventory # 0816512329_abe_gd
Book Description Brand: Univ of Arizona Pr, 1991. Paperback. Condition: VERY GOOD. Pages are intact and are not marred by notes or highlighting, but may contain a neat previous owner name. The spine remains undamaged. Supplemental materials are not guaranteed with any used book purchases. Seller Inventory # 0816512329_abe_vg
Book Description University of Arizona Press, 1991. Condition: Good. A+ Customer service! Satisfaction Guaranteed! Book is in Used-Good condition. Pages and cover are clean and intact. Used items may not include supplementary materials such as CDs or access codes. May show signs of minor shelf wear and contain limited notes and highlighting. Seller Inventory # 0816512329-2-4
Book Description University of Arizona Press, 1991. Condition: Good. Shows some signs of wear, and may have some markings on the inside. Complete Numbers Starting with 1, 1st Ed. Seller Inventory # GRP10470973
Book Description The University of Arizona Press, 1991. Trade Paperback. Condition: Very Good. Trade paperback in very good condition: slight edge wear; name inside, otherwise clean and unmarked. Size: 4to - over 9¾ - 12" tall. Book. Seller Inventory # 091701
Book Description Univ of Arizona Pr, 1991. Paperback. Condition: Good. Seller Inventory # SONG0816512329
Book Description University of Arizona Press, 1991. Condition: Very Good. Ships from the UK. Former Library book. Great condition for a used book! Minimal wear. Complete Numbers Starting with 1, 1st Ed. Seller Inventory # GRP106295737
Book Description Univ of Arizona Pr, 1991. Paperback. Condition: New. First Paperback. Seller Inventory # DADAX0816512329
Book Description University of Arizona Press. PAPERBACK. Condition: Fine. 0816512329 Like New Condition. Seller Inventory # LN33.2443903