description Great Basin Spadefoot Overview
The Great Basin Spadefoot (Spea intermontana) is a species of burrowing amphibian native to the arid and semi-arid regions of the western United States and parts of British Columbia. Adapted to a dry climate, it utilizes a hard, dark, keratinous spade on the underside of each hind foot to excavate deep burrows in loose soil, where it spends extended periods to avoid dehydration. It emerges primarily during heavy rains to breed in temporary pools. As a member of the spadefoot family, it possesses vertical pupils and lacks the prominent parotoid glands found in true toads.
help Great Basin Spadefoot FAQ
How does the Great Basin spadefoot survive dry conditions?
The Great Basin spadefoot, Spea intermontana, uses a hard keratinous spade on the underside of each hind foot to burrow into dry soil. It can remain underground until seasonal rain creates suitable breeding pools.
Where does Spea intermontana live?
It occurs in arid and semi-arid parts of the western United States and extends into British Columbia. Its range includes areas where temporary rain pools are important for reproduction.
Why is it called a spadefoot?
The name refers to the dark, shovel-like spade on the underside of each hind foot. The animal uses this structure to dig backward into loose ground.
Does the Great Basin spadefoot breed in permanent ponds?
It commonly uses temporary pools formed by heavy rain rather than relying only on permanent ponds. This strategy allows it to reproduce in dry landscapes, but the tadpoles must develop quickly before the pools disappear.
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