Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Didelphimorphia Didelphidae

Scientific Name: Gracilinanus aceramarcae
Species Authority: (Tate, 1931)
Common Name(s):
English Aceramarca Gracile Mouse Opossum, Bolivian Gracile Opossum
French Petit Opossum-souris De Bolivie
Marmosa aceramarcae Tate, 1931

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Patterson, B. & Solari S.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
This species is list as Least Concern, although it is poorly known, the species’ range is not under enough threat to qualify for a higher category, a large presumed global population, and is found in protected areas.
Previously published Red List assessments:
1996 Critically Endangered (CR)

Geographic Range [top]

Range Description: This species is known only from around six localities in southeastern Peru through northwest Bolivia. The localities include the type locality the Aceramarca River (tributary of the Unduavi River in Yungas) in La Paz, Bolivia (Gardner, 2005). It has an altitudinal range of 2,600 to 3,290 m (Salazar et al., 2002).
Countries occurrence:
Bolivia, Plurinational States of; Peru
Lower elevation limit (metres): 2600
Upper elevation limit (metres): 3290
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Unknown. There is difficulty sampling this species due to its arboreal habits.
Current Population Trend: Unknown
Additional data:
Population severely fragmented: No

Habitat and Ecology [top]

Habitat and Ecology: This species inhabits tropical forests (elfin forest). It is likely that G. aceramarcae is arboreal, although it may forage for fruit, insects and other small invertebrates on the forest floor. There are no records outside of forest.
Systems: Terrestrial

Threats [top]

Major Threat(s): There is very little known about threats, although deforestation rates in the species’ range are not currently suspected to be high.

Conservation Actions [top]

Conservation Actions: The species has been recorded in at least a few protected areas.

Citation: Patterson, B. & Solari S. 2008. Gracilinanus aceramarcae. The IUCN Red List of Threatened Species 2008: e.T9416A12984552. . Downloaded on 06 October 2015.
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