| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| ANIMALIA | CHORDATA | MAMMALIA | DIDELPHIMORPHIA | DIDELPHIDAE |
| Scientific Name: | Gracilinanus agilis | |||||||||
| Species Authority: | (Burmeister, 1854) | |||||||||
Common Name/s:
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| Taxonomic Notes: | The species is treated as being monotypic pending revision (Gardner 2005). Costa et al. (2003) detailed differences between G. agilis and G. microtarsus, two taxa that Gardner (1993) suggested could prove conspecific. | |||||||||
| Red List Category & Criteria: | Least Concern ver 3.1 | |||
| Year Assessed: | 2011 | |||
| Assessor/s: | Carmignotto, A., Solari, S., de la Sancha, N. & Costa, L. | |||
| Reviewer/s: | Flores, D. & Chiozza, F. | |||
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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. However, this species could be listed as Near Threaten in Paraguay, because in the country it is restricted only to the Atlantic Forest of eastern Paraguay which has experienced severe landscape change and deforestation. |
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| History: |
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| Range Description: | This species is found in the southeast of Brazil, Paraguay, eastern Peru and eastern Bolivia. |
| Countries: |
Native:
Bolivia; Brazil; Colombia; Paraguay; Peru
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| Range Map: | Click here to open the map viewer and explore range. |
| Population: | This species is locally common to rare. It may be present but very rare throughout western Amazonia, but common in dry forests to the south (Emmons and Feer 1997). |
| Population Trend: |
Unknown
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| Habitat and Ecology: | G. agilis is nocturnal and arboreal. It 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. Specimens are commonly captured in pitfall traps. It is likely that specimens reported from the Cerrado were misidentified Crytonanus. 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 |
| Major Threat(s): | There are no major threats to this species. In some areas, especially along the Andean foothills, the species is probably declining due to deforestation. |
| Conservation Actions: | This species occurs in protected areas. Further research is needed on the distribution of this species and effect of possible threats. |
| Citation: | Carmignotto, A., Solari, S., de la Sancha, N. & Costa, L. 2011. Gracilinanus agilis. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 08 February 2012. |
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