Frog of the Week

Eastern Spadefoot Toad (Scaphiopus holbrookii)

American_Eastern_Spadefoot_Toad.JPG
Eastern Spadefoot by Riechvaugen
leastconcern

Common Name: Eastern Spadefoot Toad
Scientific Name: Scaphiopus holbrookii
Family: Scaphiopodidae – Spadefoot Toad family
Location: United States – Alabama, Arkansas, Connecticut, District of Columbia, Delaware, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Massachusetts, Maryland, Missouri, Mississippi, North Carolina, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Virginia, and West Virginia
Size: 1.5 – 2.5 inches (2.3 -3.9 mm)

The Eastern Spadefoot Toad are a fossorial species, living underground in burrows for most of their life. They are great at burrowing thanks to the keratanized shealths  “spades” on their rear legs. Sandy or loose soil areas are the preferred since its easier to dig in them. The toads usually only come to the surface to breed following warm rains.

photo by Todd Pierson

In the north, they breed from March to August while they can breed anytime in the south. Breeding is triggered by rain once it reaches between 45 – 50 degrees Fahrenheit. Spadefoots breed primarily in temporary bodies of water, to protect the eggs from predators such as fish. However, they do sometimes breed in permanent bodies. Reproduction is pretty typical. Males will call from the shores to attract a mate. Once a female selects a mate, the male will grasp the female from behind. Then the female will lay her eggs and the male will fertilize them. The female can lay up to 2, 500 eggs at a time. No parent provides any care for the eggs and they leave them be.

While the International Union for the Conservation of Nature (IUCN) Red List ranks the toad as least concern, in many states, it is protected. Habitat destruction is the main reason for the decline. Better protections for wetlands are needed.

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