Map_thumbnail_large_font

Atelopus balios 

Scope: Global
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_offStatus_en_offStatus_cr_onStatus_ew_offStatus_ex_off

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Bufonidae

Scientific Name: Atelopus balios
Species Authority: Peters, 1973
Common Name(s):
English Rio Pescado Stubfoot Toad
Taxonomic Source(s): Frost, D.R. 2014. Amphibian Species of the World: an Online Reference. Version 6 (27 January 2014). New York, USA. Available at: http://research.amnh.org/herpetology/amphibia/index.html. (Accessed: 27 January 2014).

Assessment Information [top]

Red List Category & Criteria: Critically Endangered (Possibly Extinct) A2ace ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Annotations:
Needs updating
Assessor(s): Diego Cisneros-Heredia, Mario Yánez-Muñoz, Luis A. Coloma, Santiago Ron
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Justification:
Listed as Critically Endangered because of a drastic population decline, estimated to be more than 80% over the last three generations, inferred from the apparent disappearance of most of the population, probably due to chytridiomycosis.
Date last seen: 1995

Geographic Range [top]

Range Description:This species is known from only four localities in Azuay, Cañar, and Guayas Provinces in the Pacific lowlands of south-western Ecuador, from 200-460m asl.
Countries occurrence:
Possibly extinct:
Ecuador
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This is now considered a very rare species. There have been no records since April 1995 despite repeated searches. It is no longer found at Río Patul (in Azuay province), where it used to be abundant (L. Coloma pers. comm.).
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:It is an inhabitant of lowland rainforest, and has been found on riverbanks. There is no specific information known about breeding habits, though it is likely to be similar to other Atelopus species, with breeding taking place in streams.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): This species seems to have disappeared, as with many other Atelopus species, likely due to chytridiomycosis, although the altitude at which it occurs is low (the disease normally occurs at higher altitudes in the tropics). Habitat degradation and loss, due to agriculture (crops and livestock) and logging, and pollution, continue to be very serious threats.

Conservation Actions [top]

Conservation Actions: The range of the species does not include any protected areas. As the species might be extinct, it might be too late for conservation measures such as captive breeding; additional survey work is required to confirm the continued persistence of this species in the wild.

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  
1. Land/water protection -> 1.1. Site/area protection
1. Land/water protection -> 1.2. Resource & habitat protection

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
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

2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.2. Small-holder grazing, ranching or farming
♦ timing:Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

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

8. Invasive and other problematic species, genes & diseases -> 8.1. Invasive non-native/alien species/diseases -> 8.1.2. Named species [ Batrachochytrium dendrobatidis ]
♦ timing:Ongoing    
→ Stresses
  • 2. Species Stresses -> 2.1. Species mortality

9. Pollution -> 9.1. Domestic & urban waste water -> 9.1.3. Type 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

Bibliography [top]

Coloma, L.A. and Lötters, S. 1996. The tadpole of Atelopus balios (Anura: Bufonidae) from the Pacific lowlands of Ecuador. Herpetologica: 66-70.

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

La Marca, E., Lips, K.R., Lötters, S., Puschendorf, R., Ibáñez, R., Rueda-Almonacid, J.V., Schulte, R., Marty, C., Castro, F., Manzanilla-Puppo, J., Garcia-Perez, J.E., Toral, E., Bolaños, F., Chaves, G., Pounds, J.A. and Young, B. 2005. Catastrophic population declines and extinctions in Neotropical harlequin frogs (Bufonidae: Atelopus). Biotropica: 190-201.

Lötters, S. 1996. The Neotropical Toad Genus Atelopus. Checklist - Biology - Distribution. Vences, M. and Glaw, F. Verlags GbR, Köln, Germany.

Parker III, T.A. and Carr, J.L. 1992. Status of forest remnants in the Cordillera de la Costa and adjacent areas of southwestern Ecuador. RAP Working Papers: 1-172.

Peters, J.A. 1973. The frog genus Atelopus in Ecuador (Anura: Bufonidae). Smithsonian Contributions to Zoology: 1-49.

Pounds, J.A., Bustamante, M.R., Coloma, L.A., Consuegra, J.A., Fogden, M.P.L., Foster, P.N., La Marca, E., Masters, K.L., Merino-Viteri, A., Puschendorf, R., Ron, S.R., Sánchez-Azofeifa, G.A., Still, C.J. and Young, B.E. 2006. Widespread amphibian extinctions from epidemic disease driven by global warming. Nature 439: 161-167.


Citation: Diego Cisneros-Heredia, Mario Yánez-Muñoz, Luis A. Coloma, Santiago Ron. 2004. Atelopus balios. The IUCN Red List of Threatened Species 2004: e.T54491A11141869. . Downloaded on 06 December 2016.
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