Seychelles treefrog - Tachycnemis seychellensis
( Duméril & Bibron, 1841 )

 

 

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Subspecies: Unknown
Est. World Population:

CITES Status: NOT LISTED
IUCN Status: Endangered
U.S. ESA Status: NOT LISTED

Body Length:
Tail Length:
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Top Speed:
Jumping Ability: (Horizontal)

Life Span: in the Wild
Life Span: in Captivity

Sexual Maturity: (Females)
Sexual Maturity: (Males)
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Habitat:

This species lives in disturbed and undisturbed forest, and in highly modified habitats on the coastal plateau of Mahé and La Digue (for example, gardens). It breeds in marshes, pools, and both slow- and fast-moving streams. It has aquatic tadpoles that hatch from eggs laid in or above water (S. Maddock and D. Gower pers. comm. January 2025).


Range:

This species occurs on four islands in the granitic Seychelles: Mahé, Silhouette, Praslin, and La Digue. It has been found from sea level up to 700 m asl on Mahé and approximately 500 m asl on Silhouette (S. Maddock and D. Gower pers. comm. January 2025). Its extent of occurrence (EOO) is 1,918 km2 and its area of occupancy (AOO) is 104 km2. Due to the inferred direct impact of climate change on its habitat, it is considered to occur in one threat-defined location.


Conservation:

Conservation Actions In-Place
It occurs in the Morne Seychellois National Park on Mahé island, Silhouette National Park on Silhouette island, and Praslin National Park on Praslin island. It has been reported from unprotected areas further south on Mahé, and only from unprotected areas on La Digue. Sporadic surveys have taken place since 2012 and are expected to be ongoing until at least 2028 on Mahé (S. Maddock and D. Gower pers. comm. January 2025).

Conservation Needed
There is a need for improved biosecurity measures to limit the impact of invasive species including disease and disease-vectors (Seychelles Assessment Workshop January 2025). Habitat protection of the southern subpopulation on Mahé, and on the subpopulations on La Digue might be required. 

Research Needed
Further research is required on its' natural history and the impacts of invasive species, and there is a need for monitoring of the population status of this species. Surveys on Mahé between Morne Seychellois National Park and the southern subpopulation are required. 


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