Trichobatrachus robustus 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Arthroleptidae

Scientific Name: Trichobatrachus robustus
Species Authority: Boulenger, 1900
Common Name(s):
English Hairy Frog

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Jean-Louis Amiet, Marius Burger
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson and Neil Cox)
Listed as Least Concern in view of its wide distribution, its presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.

Geographic Range [top]

Range Description: This species occurs in lowlands from the Osamba Hills in eastern Nigeria to the Mayombe Hills in extreme western Democratic Republic of Congo. There are records from Nigeria, Cameroon, Equatorial Guinea, Gabon and the Democratic Republic of Congo. It is presumed to occur in Congo and in the Cabinda Enclave of Angola.
Countries occurrence:
Cameroon; Congo, The Democratic Republic of the; Equatorial Guinea; Gabon; Nigeria
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It is rare around Yaounde, but much more common in the west of its range in Cameroon.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: It lives in fast-flowing rivers in lowland rainforest, and in secondary and agricultural habitats, including tea plantations. The tadpoles live in fast, even torrential, water, and at the foot of small waterfalls.
Systems: Terrestrial; Freshwater

Use and Trade [top]

Use and Trade: Dried animals are often prepared as a special treat for children returning from schools for the Christmas holiday.
The tadpoles, rather than the adults, are eaten in the Rumpi Hills, Cameroon.

Threats [top]

Major Threat(s): It is presumably decreasing because of declining water quality, but it appears to be relatively tolerant of changes in the terrestrial habitats around its streams. It is subject to intense hunting pressure for food, and is often rare in the areas around villages. In the Rumpi Hills in Cameroon, local people eat the tadpoles.

Conservation Actions [top]

Conservation Actions: It occurs in several protected areas.

Classifications [top]

1. Forest -> 1.6. Forest - Subtropical/Tropical Moist Lowland
suitability: Suitable  
5. Wetlands (inland) -> 5.1. Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)
suitability: Suitable  
14. Artificial/Terrestrial -> 14.1. Artificial/Terrestrial - Arable Land
suitability: Suitable  
14. Artificial/Terrestrial -> 14.3. Artificial/Terrestrial - Plantations
suitability: Suitable  
14. Artificial/Terrestrial -> 14.6. Artificial/Terrestrial - Subtropical/Tropical Heavily Degraded Former Forest
suitability: Suitable  
1. Land/water protection -> 1.1. Site/area protection
2. Land/water management -> 2.1. Site/area management

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.2. Small-holder farming
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

2. Agriculture & aquaculture -> 2.1. Annual & perennial non-timber crops -> 2.1.3. Agro-industry farming
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

5. Biological resource use -> 5.1. Hunting & trapping terrestrial animals -> 5.1.1. Intentional use (species is the target)
♦ timing: Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality

5. Biological resource use -> 5.3. Logging & wood harvesting -> 5.3.5. Motivation Unknown/Unrecorded
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

9. Pollution -> 9.3. Agricultural & forestry effluents -> 9.3.4. Type Unknown/Unrecorded
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
1. Research -> 1.5. Threats
1. Research -> 1.6. Actions
3. Monitoring -> 3.1. Population trends

♦  Food - human
 Local : ✓ 

Bibliography [top]

Amiet, J.-L. 1989. Quelques aspects de la biologie des Amphibiens Anoures du Cameroun. Année Biologique: 73-136.

Amiet, J.-L. 1991. Images d'Amphibiens camerounais. III. Le comportement de garde des oeufs. Alytes: 15-22.

Amiet, J.-L. and Perret, J.-L. 1969. Contributions a la faune de la region de Yaounde (Cameroun). II - Amphibiens Anoures. Annales de la Faculté des Sciences du Cameroun: 117-137.

Burger, M., Branch, W.R. and Channing, A. 2004. Amphibians and reptiles of Monts Doudou, Gabon: species turnover along an elevational gradient. California Academy of Sciences Memoir: 145-186.

De la Riva, I. 1994. Anfibios anuros del Parque Nacional de Monte Alen, Rio Muni, Guinea Ecuatorial. Revista Espanola de Herpetologia: 123-139.

Frétey, T. and Blanc, C.P. 2000. Liste des Amphibiens d'Afrique Centrale. ADIE, Libreville, Gabon.

Herrmann, H.-W., Böhme, W., Herrmann, P.A., Plath, M., Schmitz, A. and Solbach, M. 2005. African Biodiversity Hotspots: the amphibians of Mt. Nlonako, Cameroon. Salamandra 41(1/2): 61-81.

IUCN. 2004. 2004 IUCN Red List of Threatened Species. Downloaded on 23 November 2004.

Lasso, C.A., Rial, A.I., Castroviejo, J. and de la Riva, I. 2002. Herpetofauna del Parque Nacional de Monte Alen (Rio Muni, Guinea Ecuatorial). Graellsia: 21-34.

Lötters, S., Gossmann, V., Obame, F. and Böhme, W. 2001. Zur Herpetofauna Gabuns, Teil I: Einleitung, Untersuchungsgebiet und Methodik, kommentierte Artenliste der gefundenen Froschlurche. Herpetofauna: 19-34.

Perret, J.-L. 1966. Les Amphibiens du Cameroun. Zoologische Jahrbuecher fuer Systematik: 289-464.

Rödel, M.-O. and Pauwels, O.S.G. 2003. A new Leptodactylodon species from Gabon (Amphibia: Anura: Astylosternidae). Salamandra: 139-148.

Citation: Jean-Louis Amiet, Marius Burger. 2004. Trichobatrachus robustus. The IUCN Red List of Threatened Species 2004: e.T54443A11146278. . Downloaded on 30 November 2015.
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