The Dusky Gopher Frog (Lithobates sevosus) is a critically endangered amphibian native to the southeastern United States, particularly southern Mississippi. Here’s an overview of this rare species:


The Dusky Gopher Frog, once known as the Mississippi Gopher Frog, has an average length of about three inches and a stocky body with colors on its back that range from black to brown or gray and is covered with dark spots and warts. (Western Carolina University photo/ John A. Tupy)

🐸 Quick Facts

FeatureDetails
Scientific NameLithobates sevosus
Common NameDusky Gopher Frog
Conservation StatusCritically Endangered (IUCN Red List)
HabitatIsolated, ephemeral wetlands surrounded by longleaf pine forests
Current RangeFewer than 10 known breeding ponds, all in southern Mississippi
Estimated Wild PopulationFewer than 250 adult frogs

🌿 Habitat and Ecology

  • Prefers temporary, fishless ponds for breeding.
  • Lives in underground burrows, often those made by gopher tortoises (hence the name).
  • Habitat is dependent on frequent fire regimes to maintain the open, grassy conditions of longleaf pine ecosystems.

🔁 Life Cycle

  • Breeds seasonally (typically January–March) after heavy rains.
  • Tadpoles develop in 60–90 days before metamorphosing.
  • Adults are largely terrestrial, rarely seen except during breeding.

⚠️ Threats

  • Habitat loss from urban development and agriculture.
  • Fire suppression, which leads to overgrown habitat unsuitable for the species.
  • Low genetic diversity due to small population size.
  • Isolated breeding sites, increasing vulnerability to stochastic events.

A critically endangered (IUCN) and federally endangered Mississippi gopher frog (Lithobates sevosus) from Detroit Zoo.

🛡️ Conservation Efforts

  • Captive breeding programs at zoos and conservation centers (e.g., Memphis Zoo, Detroit Zoo).
  • Habitat restoration in the De Soto National Forest and other protected areas.
  • Legal protection under the U.S. Endangered Species Act (1992).
  • Controversial but important critical habitat designations to ensure survival.

🔍 Fun Fact

When threatened, the dusky gopher frog covers its eyes with its front legs and plays dead—earning it the nickname “the snot-blob frog” for its appearance during this defense.


Would you like more details about conservation efforts, its life cycle, or the legal battles surrounding its habitat?