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64. Rhombophryne hara

Rhombophryne hara


Rhombophryne hara is a species only known from two localities on Nosy Hara Island, and the total area in which this species occurs is only 4km²!

This species is part of the Microhylid frog family and molecular data has shown that the initial divergence of the Microhylidae family to have taken place about 66 millions of years ago, around the time of the Cretaceous extinction event. Due to this species specialisation to karstic habitat (characterized by underground drainage systems with sinkholes from the dissolution of soluble rocks such as limestone) and partly to caves, this species is less affected by deforestation than other Malagasy frog species. However, it is prone to the anthropogenic effects such as wood harvesting and forest clearing, which affects it’s probably leaf litter breeding sites.

Tourism has increased habitat disturbance and the stream where individuals of this species has been found has now undergone major disturbance. This species is not found in any protected areas, therefore site management and protection is needed in the face of ongoing anthropogenic threats.

  • Order: Anura
  • Family: Microhylidae
  • Population: Unknown
  • Trend: decreasing

EDGE Score

EDGE Score: 6 (?)
ED Score: 24.13 (?)
GE / IUCN Red List (?)
Not Evaluated Data Deficient Least Concern Near Threatened Vulnerable Endangered Critically Endangered Extinct in the Wild Extinct


This species occurs in two localities in the west of Nosy Hara Island, Madagascar, between 9-20 metres above sea level.

Habitat and Ecology

This species is observed in forest at the edge of a small creek with flowing water and also inside a cave. As other species in this genus breeds using foam nests in leaf litter, it is assumed this species also does the same.

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Loading species distribution map...

This wordcloud illustrates the threats facing this species. The size of each word indicates the extent of a species range that is affected by that threat (larger size means a greater area is affected). The colour of the word indicates how much that threat impacts the species (darker shades of red mean the threat is more severe).

Logging Recreation Ecosystem changes

Threat wordcloud key:

Small area affected
Large area affected
Least severe
Most severe
Severity unknown
Source: The IUCN List of Threatened Species. Version 2017.1.
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