Oreophrynella nigra 

Scope: Global
Language: English

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Bufonidae

Scientific Name: Oreophrynella nigra
Species Authority: Señaris, Ayarzaguena and Gorzula, 1994
Common Name(s):
Spanish Sapito Rugoso Del Kukenan

Assessment Information [top]

Red List Category & Criteria: Vulnerable D2 ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Needs updating
Assessor(s): Enrique La Marca, Celsa Señaris
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Listed as Vulnerable because it is known from only two locations.

Geographic Range [top]

Range Description:This species is known from Tepuis Kukenan and Yuruaní, in Bolívar State, Venezuela, at 2,300-2,700m asl.
Countries occurrence:
Venezuela, Bolivarian Republic of
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is a common species.
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This is a diurnal frog that can be found on rocks in montane tepui environments. It is a communally breeding species, with breeding taking place by direct development in galleries within peat bogs.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): Although there are no current major threats, its restricted range makes it more susceptible to threatening processes such as wildfire.

Conservation Actions [top]

Conservation Actions: It is recorded from Yuruaní National Monument. There is a need for close population monitoring of this species given that it is restricted to a single location.

Classifications [top]

1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
5. Wetlands (inland) -> 5.4. Wetlands (inland) - Bogs, Marshes, Swamps, Fens, Peatlands
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
7. Natural system modifications -> 7.1. Fire & fire suppression -> 7.1.3. Trend 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

Bibliography [top]

Barrio Amorós, C.L. 2004. Amphibians of Venezuela Systematic List, Distribution and References, An Update. Review of Ecology in Latin America 9(3): 1-48.

IUCN. 2004. 2004 IUCN Red List of Threatened Species. Available at: (Accessed: 23 November 2004).

La Marca, E. 1997. Lista actualizada de los anfibios de Venezuela. In: E. La Marca (ed.), Vertebrados Actuales y Fosiles de Venezuela, pp. 103-120. Museo de Ciencias y Tecnología de Mérida, Mérida.

McDiarmid, R. and Gorzula, S. 1989. Aspects on the reproductive ecology of the tepui toads, genus Oreophrynella (Anura: Bufonidae). Copeia: 445-451.

Señaris, J.C., Ayarsagüena, J. and Gorzula, S. 1994. Los sapos de la familia Bufonidae (Amphibia: Anura) de las tierras altas de la Guayana venezolana: descripción de un nuevo género y tres especies. Publicaciones de la Asociacion Amigos de Doñana: 1-37.

Solano, H. 1989. Aspectos de la biología de Oreophrynella quelchii (Boulenger) en los tepuyes venezolanos. Acta Biologica Venezuelica: 55-63.

Citation: Enrique La Marca, Celsa Señaris. 2004. Oreophrynella nigra. The IUCN Red List of Threatened Species 2004: e.T54852A11216075. . Downloaded on 29 March 2017.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided