Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Chiroptera Emballonuridae

Scientific Name: Balantiopteryx infusca
Species Authority: (Thomas, 1897)
Common Name(s):
English Ecuadorian Sac-winged Bat

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii,v) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Dávalos, L. Burneo, S. & Lim, B.
Reviewer(s): Medellín, R. (Chiroptera Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
This species is considered Endangered due to a small range and ongoing decline: extent of occurrence is estimated to be <5,000 km², and it is known from only 2 locations. The habitat has been reduced, and the species' range is predicted to be fragmented, with continuing decline in habitat extent and quality and the number of mature individuals.
Previously published Red List assessments:
1996 Endangered (EN)

Geographic Range [top]

Range Description: This species occurs in west Ecuador and Colombia (Simmons, 2005). The species has been recorded from four localities, however, it is presumed to occur within appropriate habitat been these localities. There is only one locality for the species in Colombia: Southern Choco long 3.93333 lat -76.5167 locality data (Mantilla pers. comm.; Alberico et al., 2000).
Countries occurrence:
Colombia; Ecuador
Lower elevation limit (metres): 150
Upper elevation limit (metres): 1200
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: In Ecuador it is rare and known only from three localities (Albuja 1999; McCarthy et al. 2000). Known from only one locality in Colombia (Alberico et al. 2000).
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species natural history is poorly known. At the genus level it is found in rainforests and feeds aerially on tiny insects. It roosts in small to large colonies in well-lighted caves, rock crevices, culverts, or tree hollows. It is found in rainforest (Emmons and Feer 1997). Narrowly endemic to small area of Choco in Pacific rainforest (Davalos pers. comm.). In Ecuador the species has been found at 510 m (Albuja 1999). The only record from Colombia is at 1,200 m (Alberico et al. 2000).
Systems: Terrestrial

Threats [top]

Major Threat(s): Habitat may be under threat due to deforestation (Davalos pers. comm.). Legal and illegal crops are grown in and outside protected areas, reducing habitat (Alvarez, 2002; Alvarez, 2003). In Ecuador the habitat is severely fragmented and facing a high risk of destruction in the near future because of the lack of control to illegal logging. The situation in Colombia, the situation is better than in Ecuador (Burneo pers. comm.).

Conservation Actions [top]

Conservation Actions: It is not known whether this species occurs in protected areas within its range (Davalo pers. comm.).

Citation: Dávalos, L. Burneo, S. & Lim, B. 2008. Balantiopteryx infusca. The IUCN Red List of Threatened Species 2008: e.T2531A9450038. . Downloaded on 07 October 2015.
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