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Grand Canyon National Park
Amphibians
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| K. Kingsley, NPS | | Spadefoot Toad |
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Riparian: The three most common amphibians in the Grand Canyon are the canyon treefrog, red-spotted toad, and Woodhouse’s rocky mountain toad. These amphibians need the Colorado River or perennial tributaries in order to breed, since their egg masses and tadpoles are water bound. However, they are more tolerant of desiccation than most amphibians, and red-spotted toads have been found as far as one-half mile from a known water source. Leopard frogs are very rare in the Colorado River corridor, and are known to exist at only a few sites.
Desert Scrub: Amphibians are generally absent from dry desert upland areas that are more than one mile from water.
Coniferous Forest: The Utah tiger salamander and the Great Basin spadefoot toad are two amphibians that are common in the rim forests. They live in the North Rim's moist grasslands near ponds or stock tanks and in more mesic habitats on the South Rim. The Arizona tiger salamander and the Great Plains toad are more rare and are seldom seen.
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Related Information
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Web Site
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Did You Know?
Building a structure that provides the widest possible view of the Grand Canyon yet harmonizes with its setting was architect Mary Colter's goal when the Santa Fe Railroad hired her in 1930 to design a gift shop and rest area at Desert View Point. The Watchtower opened in May of 1933.
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Last Updated: March 29, 2007 at 19:54 EST |
