[3] Reproduction takes place near small waterfalls and continues throughout the year.

They hatch as Gosner stage 25 tadpoles measuring about 60 mm (2.4 in) in length.

[4] Cycloramphus dubius occurs in primary and good quality secondary forest streams at elevations of 800–1,000 m (2,600–3,300 ft) above sea level.

Major threats to it is air and water pollution from industry as well as disturbance of its habitat by touristic activities.

It is classified as of "least concern" by the International Union for Conservation of Nature (IUCN).