There are currently six species of amphibians listed on Connecticut's endangered and threatened species list. They are;

Endangered:

Spadefoot toad

Threatened:

Slimy salamander

Spring salamander

Blue-spotted salamander (diploid populations)

Special Concern:

Leopard frog

Jefferson salamander

Blue-spotted salamander (hybrid populations)

There is also growing concern among biologists over the conservation of vernal pool-breeding amphibians (wood frog, spotted salamander, marbled salamander, Jefferson salamander).

These species require temporary woodland pools for successful reproduction as well as substantial areas of forest habitat surrounding these pools for the remainder of their life cycle.

Because of these separate and specialized habitat needs, populations of these species are highly vulnerable to changes across the landscape, especially development and suburban sprawl.