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Titicaca Grebe Rollandia microptera

IUCN Red List Criteria

Critically Endangered  
Endangered A2acde+3cde+4acde 
Vulnerable A2acde+3cde+4acde;C1 

IUCN Red List history

Year Category
2012 Endangered
2008 Endangered
2006 Endangered
2004 Endangered
2002 Endangered
2000 Lower Risk/Least Concern
1994 Lower Risk/Least Concern
1988 Near Threatened

Species attributes

Migratory status not a migrant Forest dependency Does not normally occur in forest
Land mass type continent
Average mass 706 g

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 79,000 medium
Number of locations 11-100 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 1600 medium Estimated 2003
Population trend Decreasing medium -
Number of subpopulations - - -
Largest subpopulation - - -
Generation length (yrs) 5.3 - - -
Population justification: Martinez et al. (2006) estimated around 1,600 mature individuals by summing the adults counted in their study of Lake Titicaca in 2003 and those adults counted elsewhere in the Titicaca watershed by Engblom et al. and Rocha et al. 2,583 individuals of all ages were counted on Lake Titicaca itself which combined with smaller numbers elsewhere in the watershed represents a higher population than previously estimated.
Trend justification: The species declined by 15% between 2003 and 2005, consistent with a decline of over 50% in ten years (Asociación Armonia, 2007). The greatest current threat to the species, bycatch in fishermen's gill-nets, is continuing.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage Resident
Bolivia Native Extant Yes      
Peru Native Extant Yes      

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Bolivia Lago Poopó y Río Laka Jahuira site factsheet
Bolivia Lago Titicaca (Sector Boliviano) site factsheet
Peru Laguna de Chacas site factsheet
Peru Laguna Suytococha site factsheet
Peru Laguna Umayo site factsheet
Peru Ramis y Arapa (Lago Titicaca, sector Peruano) site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Wetlands (inland) Permanent Freshwater Lakes (over 8ha) major resident
Wetlands (inland) Permanent Freshwater Marshes/Pools (under 8ha) major resident
Altitude 3000 - 4300 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Fishing & harvesting aquatic resources / Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Very Rapid Declines High Impact: 8
Stresses
Species mortality
Biological resource use Gathering terrestrial plants / Unintentional effects (species is not the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation
Biological resource use Hunting & trapping terrestrial animals / Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Species mortality
Human intrusions & disturbance Recreational activities Timing Scope Severity Impact
Ongoing Minority (<50%) Unknown Unknown
Stresses
Species disturbance
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Salmon Trout (Oncorhynchus mykiss) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Species mortality
Invasive and other problematic species, genes & diseases Invasive non-native/alien species/diseases / Silverside (Basilicthys bonariensis) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Species mortality
Natural system modifications Dams & water management/use / Abstraction of ground water (commercial use) Timing Scope Severity Impact
Future Minority (<50%) Unknown Unknown
Stresses
Ecosystem degradation
Pollution Garbage & solid waste Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation
Pollution Industrial & military effluents / Seepage from mining Timing Scope Severity Impact
Ongoing Minority (<50%) Rapid Declines Medium Impact: 6
Stresses
Ecosystem degradation

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Rollandia microptera. Downloaded from http://www.birdlife.org on 31/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 31/10/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Endangered
Family Podicipedidae (Grebes)
Species name author (Gould, 1868)
Population size 1600 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 79,000 km2
Country endemic? No
Links to further information
- Summary information on this species