Ahl's Reed Frog

Meet the Hyperolius castaneus: The Colorful Montane Reed Frog

The Hyperolius castaneus, also known as Ahl's reed frog, the brown reed frog, or the montane reed frog, is a captivating amphibian belonging to the Hyperoliidae family. These vibrant frogs inhabit the highlands of western Burundi, Rwanda, Uganda, and the eastern Democratic Republic of the Congo.

Appearance

These frogs are relatively small, with adult males measuring between 20 to 26 mm and females slightly larger, ranging from 27 to 32 mm in snout-to-vent length. Their coloration is notably variable:

- Males: Typically have a tan to brown dorsum adorned with yellow or brown spots.

- Females: Usually exhibit an orangish-brown to mustard-yellow dorsum.

- Both Sexes: Feature a grayish-blue or white underside, with limbs that are strikingly salmon red to red.

Habitat and Lifestyle

The Hyperolius castaneus thrives in swamps within montane grasslands and forests at elevations ranging from 1,600 to 2,850 meters above sea level. These environments provide the perfect conditions for their unique lifestyle.

Conservation Status

Initially classified as "vulnerable" in 2004, the Hyperolius castaneus has since been reclassified as "least concern" due to its wide distribution and the abundance of suitable habitats within its range. These frogs benefit from residing in several national parks, providing them with some protection and stability.

Taxonomy Tidbits

The subspecies Hyperolius castaneus rhodogaster has an uncertain status and may even represent a distinct species. Moreover, Hyperolius constellatus, once considered a subspecies of H. castaneus, is now recognized as a separate species altogether.