Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Craugastoridae

Scientific Name: Psychrophrynella quimsacruzis
Species Authority: (De la Riva, Reichle & Bosch, 2007)
Phrynopus quimsacruzis De la Riva, Reichle & Bosch, 2007
Taxonomic Notes: Psychrophrynella quimsacruzis is distinguished from other similar species by a combination of colour patterns and morphological features (De la Riva, 2007).

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2010
Date Assessed: 2008-03-31
Assessor(s): Ignacio De la Riva
Reviewer(s): Ariadne Angulo and Simon Stuart
Listed as Vulnerable in view of its extent of occurrence of less than 20,000 km2, area of occupancy of less than 2,000 km2, with all individuals in fewer than ten locations, and a projected decline in the extent and quality of its habitat due to mining and climate change.
Previously published Red List assessments:
2008 Vulnerable (VU)

Geographic Range [top]

Range Description: Psychrophrynella quimsacruzis is known from Choquetanga and Mina Caracoles (16 52' 39" S, 67 18' 23" W, 3660 masl) and from the junction of the roads to Quime and Choquetanga (17 00' 02" S, 67 16' 49" W, 3730 masl), Province of Inquisivi, Department of La Paz, Bolivia. The two localities are separated by an airline distance of 13.9 km, and lie in the northeastern versant of the main massif of the Cordillera de Quimsa Cruz (De la Riva, 2007).
Countries occurrence:
Bolivia, Plurinational States of
Lower elevation limit (metres): 3660
Upper elevation limit (metres): 3730
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It seems that there are two different populations of this species; however, it is not known whether these populations are conspecific with each other (I. De la Riva, pers. comm. 2008).
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: The species is found in humid paramo habitats. Individuals can be found under stones by day. Gravid females were found to contain numerous, large, unpigmented eggs. Other anurans at the type locality are Telmatobius bolivianus and Gastrotheca marsupiata (De la Riva, 2007).
Systems: Terrestrial

Threats [top]

Major Threat(s): Mining activities can be a potential threat to the species. In addition, a restricted geographic distribution and the predicted effects of climate change (e.g. drying up of regions) are considered to pose serious threats to the species (I. De la Riva, pers. comm. 2008).

Conservation Actions [top]

Conservation Actions: No conservation measures are known for this species.

Classifications [top]

3. Shrubland -> 3.7. Shrubland - Subtropical/Tropical High Altitude
suitability: Suitable  major importance:Yes

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
In-Place Species Management
In-Place Education
3. Energy production & mining -> 3.2. Mining & quarrying
♦ timing: Ongoing    
→ Stresses
  • 1. Ecosystem stresses -> 1.1. Ecosystem conversion
  • 1. Ecosystem stresses -> 1.2. Ecosystem degradation

11. Climate change & severe weather -> 11.2. Droughts
♦ 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
3. Monitoring -> 3.1. Population trends
0. Root -> 4. Other

Bibliography [top]

De la Riva, I. 2007. Bolivian frogs of the genus Phrynopus, with the description of twelve new species (Anura: Brachycephalidae). Herpetological Monographs 21: 241-277.

IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.2). Available at: (Accessed: 29 June 2010).

Citation: Ignacio De la Riva. 2010. Psychrophrynella quimsacruzis. The IUCN Red List of Threatened Species 2010: e.T136104A4237038. . Downloaded on 14 October 2015.
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