Gracilinanus agilis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	MAMMALIA	DIDELPHIMORPHIA	DIDELPHIDAE

Scientific Name:

Gracilinanus agilis

Species Authority

(Burmeister, 1854)

Common Name/s:

English	–	Agile Gracile Mouse Opossum, Agile Gracile Opossum, Agile Mouse Opossum
French	–	Petit Opossum-souris Agile
Spanish	–	Marmosa Enana, Marmosa Rojiza

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Assessed:

2008

Assessor/s

Brito, D., Astua de Moraes, D., Lew, D., Soriano, P. & Emmons, L.

Evaluator/s:

Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)

Justification:
This species is listed as Least Concern in because of its wide distribution, presumed large population, tolerance of some degree of habitat modification, occurrence in a number of protected areas and because it is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.

History:

1996

–

Lower Risk/near threatened (Baillie and Groombridge 1996)

Geographic Range [top]

Range Description:	This species is found in the southeast of Brazil, Paraguay, Uruguay, and Argentina; also, in eastern Peru and eastern Bolivia.
Countries:	Native: Argentina; Bolivia; Brazil; Colombia; Paraguay; Peru; Uruguay
Range Map:	(click map to view full version)

Population [top]

Population:	Locally common to rare. May be present but very rare throughout western Amazonia, but common in dry forests to the south (Emmons and Feer, 1997).
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Nocturnal; arboreal; frequents the forest understory, where they use slender branches and vines. Found in evergreen and gallery forests (Emmons and Feer, 1997). G. agilis is a characteristic inhabitant of the gallery forest of southern South America but has broad habitat tolerance. It has been caught under fallen trunks, in tree holes, and in moist woodland. It is reported to be an adept climber, and nests made of vegetation have been found 1.6 m off the ground. One such nest contained seven individuals. In eastern Paraguay it has usually been captured in vegetation but sometimes has been caught on the ground. This marsupial is found throughout the Brazilian cerrado, usually associated with mesic areas such as gallery forests. This mouse opossum is reported to have up to twelve young. Females lack a true pouch, and the teats remain hidden when the female is not lactating (Massoia and Fornes, 1972; Nitikman and Mares, 1987).
Systems:	Terrestrial

Habitat and Ecology:

Nocturnal; arboreal; frequents the forest understory, where they use slender branches and vines. Found in evergreen and gallery forests (Emmons and Feer, 1997). G. agilis is a characteristic inhabitant of the gallery forest of southern South America but has broad habitat tolerance. It has been caught under fallen trunks, in tree holes, and in moist woodland. It is reported to be an adept climber, and nests made of vegetation have been found 1.6 m off the ground. One such nest contained seven individuals. In eastern Paraguay it has usually been captured in vegetation but sometimes has been caught on the ground. This marsupial is found throughout the Brazilian cerrado, usually associated with mesic areas such as gallery forests. This mouse opossum is reported to have up to twelve young. Females lack a true pouch, and the teats remain hidden when the female is not lactating (Massoia and Fornes, 1972; Nitikman and Mares, 1987).

Systems:

Terrestrial

Threats [top]

Major Threat(s):	No major threats. In some areas, especially along the Andean foothills, the species is declining due to deforestation.

Major Threat(s):

No major threats. In some areas, especially along the Andean foothills, the species is declining due to deforestation.

Conservation Actions [top]

Conservation Actions:	This species occurs in protected areas. Further research is needed on the distribution of this species and effect of possible threats.

Conservation Actions:

This species occurs in protected areas. Further research is needed on the distribution of this species and effect of possible threats.

Citation:	Brito, D., Astua de Moraes, D., Lew, D., Soriano, P. & Emmons, L. 2008. Gracilinanus agilis. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 22 November 2008.
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