Ameerega hahneli (Boulenger, 1884)

Sexual Size Dimorphism

Ameerega hahneli (Boulenger, 1884) shows clear sexual size dimorphism: males measure 17–19 mm (0.67–0.75 in) and females measure 19–22 mm (0.75–0.87 in) in snout–vent length.

Dorsal and Limb Texture

The species' back and limbs have a finely granular texture and brown color, and may or may not have black spots.

Flank Markings

Its flanks are black, and are bordered above by a narrow, white or cream dorsolateral line that stretches from the tip of the snout to the groin.

Labial Stripe

It also has a white or cream labial stripe that does not extend onto the arm.

Ventral Body Markings

The belly is blue with black reticulated markings.

Limb and Groin Spots

Yellow-orange oval spots are present on the ventral surfaces of the arms, the inner surfaces of the shanks, and in the groin.

Iris Color

The iris is dark brown.

Population Abundance

Ameerega hahneli is generally a common frog, with the exception of the Guianas, where it is uncommon.

Habitat

It lives on the forest floor of tropical rainforests, and is typically found associated with fallen palm fronds, branches, and small gaps in the forest.

Activity Pattern

This species is active during the day and hides in low vegetation at night.

Conservation Status

While habitat loss poses a potential threat to Ameerega hahneli, its total population is stable and the species as a whole is not considered threatened.

Captive Trade

Legal captive breeding for the international pet trade occurs, but researchers do not regard this activity as a threat to the species.

Male Territoriality

Male Ameerega hahneli are territorial.

Vocalizations

The species' territorial call is a long series of short "peep" notes, while its courtship call is similar in structure but only contains three notes.

Egg Laying

Females lay between 6 and 33 pigmented eggs in leaf litter.

Egg Hatching and Tadpole Transport

Eggs hatch 4 to 16 days after being laid, and the newly hatched tadpoles are carried on their father's back to a creek.

Tadpole Development Requirements

Tadpoles of this species need running water to develop.

Tadpole Morphology and Metamorphosis

They are brown, have a depressed body shape and a long tail, and undergo metamorphosis two months after hatching.