Frog of the Week

Limosa Harlequin Frog (Atelopus limosus)

Limosa Harlequin Frog
photo by Brian Gratwicke

Common Name: Limosa Harlequin Frog
Scientific Name: Atelopus limosus
Family: Bufonidae – True Toad family
Locations: Panama
Size: 1 – 1.6 inches (26.5 – 40.2 mm)

The Limosa Harlequin Frog lives amongst slopes of rocky streams in the forests of central Panama. Their bright colors warn predators of their toxicity, allowing them to be active during the day. There are two different morphs of the species. The lowland morph has a brown color with yellow fingertips. Meanwhile, the highland morph is green and yellow with a black V on its back. The females generally have a red / orange colored belly.

Limosa Harlequin Frog Conservation

The Harlequin Frogs(Atelopus) are one of the most endangered group of frogs in the world and sadly, the Limosa Harlequin Frog doesn’t fair any better. Additionally, the International Union for the Conservation of Nature (IUCN) Red List classifies the frog as Critically Endangered. It is estimated that 80% of the population will die off One of the main reason for the declines is the invasive fungal pathogen Chytrid Fungus (Batrachochytrium dendrobatidis). This pathogen causes the skin of the frog to harden. Due to frogs only breathing through their skin, this causes them to suffocate and die. The loss of habitat for urban development and farms is another reason for the declines. At last, pollution from gold mining isn’t helping either.

To help ensure that the Limosa Harlequin Frog survives, researchers at the Smithsonian Institute and the Panama Amphibian Rescue and Conservation Project have taken some of the frogs into captivity. They are raising frogs and tadpoles to release into the wild as well as keeping an emergency group in place.

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