Frog of the Week

Iberian Tree Frog (Hyla molleri)

Iberian Tree Frog (Hyla molleri)
photo by Sara Navarro

Common Name: Iberian Tree Frog
Scientific Name: Hyla molleri
Family: Hylidae – Tree Frog family
Location: France, Portugal, and Spain
Size: 1.6 – 2.0 inches (4 – 5 cm)

As the name suggests, the Iberian Tree Frog lives in the Iberian peninsula and into southwest France. They are an arboreal species, often found on trees and bushes. The Iberian Tree Frog was considered a subspecies of the Common European Tree Frog (Hyla arborea) but was lifted to full species status due to genetic differences between them. The species epithet molleri honors Adolphe F. Moller, a Portuguese botanist.

The frogs mate during spring, after the snow starts to melt. The male frogs call out from the shallows of water bodies to attract the female frogs. Once the female frog arrives, the male frog grasps the female frog from behind in amplexus. Then, the female lays her eggs and the male fertilizes them. Neither the male or female frog provides any parental care for their offspring.

The International Union for the Conservation of Nature (IUCN) Red List assesses the Iberian Tree Frog as Least Concern for Extinction. The frog has a decent sized range and are common throughout it.

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