Map_thumbnail_large_font

Pristimantis nigrogriseus 

Scope: Global
Language: English
Status_ne_offStatus_dd_offStatus_lc_offStatus_nt_offStatus_vu_onStatus_en_offStatus_cr_offStatus_ew_offStatus_ex_off

Translate page into:

Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Anura Craugastoridae

Scientific Name: Pristimantis nigrogriseus (Andersson, 1945)
Synonym(s):
Eleutherodactylus nigrogriseus (Andersson, 1945)

Assessment Information [top]

Red List Category & Criteria: Vulnerable B1ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Annotations:
Needs updating
Assessor(s): Luis A. Coloma, Santiago Ron, Diego Almeida
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Justification:
Listed as Vulnerable because its Extent of Occurrence is less than 20,000 km2, its distribution is severely fragmented, and there is continuing decline in the extent and quality of its forest habitat on the Amazonian slopes of the Ecuadorian Andes.

Geographic Range [top]

Range Description:This species can be found along the eastern slopes of the Ecuadorian Andes in the Río Pastaza Valley (1,180-1,800m asl), southern Ecuador (Provincia de Morona-Santiago, from 2,195-2,835m asl), Cordillera del Due (1,150-1,700m asl), and Parque Nacional Podocarpus (Curintza, 2,600m asl).
Countries occurrence:
Native:
Ecuador
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:It is a rare species in parts of its range, for example, at Parque Nacional Podocarpus where it was last seen in 1997.
Current Population Trend:Decreasing
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species inhabits cloud forests. The frogs have been found on low vegetation and rocks, usually along streams, at night (Lynch and Duellman 1980). Breeding takes place by direct development.
Systems:Terrestrial; Freshwater

Threats [top]

Major Threat(s): Habitat destruction and degradation, due to agriculture (crops and livestock) and logging, is the main threat. Some other species of Eleutherodactylus that are associated with streams at high elevations have undergone dramatic declines and disappearances, possibly due to chytridiomycosis, so the status of this species should be monitored carefully.

Conservation Actions [top]

Conservation Actions: Its range overlaps with several protected areas including Parque Nacional Sumaco Napo-Galeras, Parque Nacional Llanganatis, Parque Nacional Sangay, and Parque Nacional Podocarpus.

Classifications [top]

1. Forest -> 1.9. Forest - Subtropical/Tropical Moist Montane
suitability:Suitable  
5. Wetlands (inland) -> 5.1. Wetlands (inland) - Permanent Rivers/Streams/Creeks (includes waterfalls)
suitability:Suitable  
2. Land/water management -> 2.1. Site/area management

In-Place Research, Monitoring and Planning
In-Place Land/Water Protection and Management
  Occur in at least one PA:Yes
In-Place Species Management
In-Place Education
11. Climate change & severe weather -> 11.5. Other impacts
♦ timing:Future    
→ Stresses
  • 1. Ecosystem stresses -> 1.3. Indirect ecosystem effects

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:Future    
→ 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

2. Agriculture & aquaculture -> 2.3. Livestock farming & ranching -> 2.3.3. Agro-industry grazing, ranching or farming
♦ timing:Future    
→ 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

1. Research -> 1.1. Taxonomy
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
1. Research -> 1.6. Actions
3. Monitoring -> 3.1. Population trends

Bibliography [top]

Andersson, L.G. 1945. Batrachians from east Ecuador collected 1937, 1938 by Wm. Clarke-MacIntyre and Rolf Blomberg. Arkiv för Zoologi: 1-88.

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

Lynch, J.D. and Duellman, W.E. 1980. The Eleutherodactylus of the Amazonian slopes of the Ecuadorian Andes (Anura: Leptodactylidae). The University of Kansas Museum of Natural History, Miscellaneous Publications 69: 1-86.

Lynch, J.D. and Duellman, W.E. 1997. Frogs of the genus Eleutherodactylus in western Ecuador: Systematics, ecology, and biogeography. University of Kansas Museum of Natural History Special Publication 23: 1-236.

Ortiz, A. and Morales, M. 2000. Evaluacion ecologica rapida de la herpetofauna en el Parque Nacional Llanganates. In: Vazques, M.A., Larrea, M. and Suarez (eds), Biodiversidad en el Parque Nacional Llangantes: un reporte de las evaluaciones ecologicas y socioeconomicas rapidas, pp. 109-122. EcoCiencia, Ministerio del Ambiente, Herbario Nacional del Ecuador, Museo Ecuatoriano de Ciencias Naturales e Instituto Internacional de Reconstruccion Rural, Quito, Ecuador.


Citation: Luis A. Coloma, Santiago Ron, Diego Almeida. 2004. Pristimantis nigrogriseus. The IUCN Red List of Threatened Species 2004: e.T56791A11524293. . Downloaded on 20 July 2018.
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