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Phyllomys thomasi

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA MAMMALIA RODENTIA ECHIMYIDAE

Scientific Name: Phyllomys thomasi
Species Authority: (Ihering, 1871)
Common Name(s):
English Giant Atlantic Tree Rat
Synonym(s):
Echimys thomasi (Ihering, 1871)
Taxonomic Notes: Also known as Echimys thomasi and Nelomys thomasi, but see Emmons et al. (2002) for reasons to place this form in the genus Phyllomys.

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Leite, Y. & Patterson, B.
Reviewer(s): Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global Mammal Assessment Team)
Justification:
This species is listed as Endangered because its extent of occurrence is less than 5,000 km², its area of occupancy is probably less than 500 km², all individuals are in fewer than five locations, and despite conservation efforts it habitat is under threat. The species is present only on an island and is subject to ongoing pressure from increase in human population there.
History:
1996 Vulnerable

Geographic Range [top]

Range Description: The species is endemic to the Ilha de Sao Sebastiao, Sao Paulo state, Brazil; this continental island is 336 km², 80% is Atlantic rainforest (Emmons et al., 2002; Leite, 2003; Eisenberg and Redford, 1999).
Countries:
Native:
Brazil
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This species is poorly known. There is no information on population or abundance (Y. Leite pers. comm.).
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This rodent is an arboreal nester; captive specimens may feed on fruit but not foliage (Eisenberg and Redford, 1999). Island has rugged topography from sea level to 1,379 m, the dominant vegetation is broadleaf, evergreen rainforest (Leite, 2003).
Systems: Terrestrial

Threats [top]

Major Threat(s): The forest habitat where it occurs is reduced and fragmented (Emmons et al., 2002). The island includes a population of introduced cats (Y. Leite pers. comm.).

Conservation Actions [top]

Conservation Actions: 80% of the 336 km² of São Sebastião Island consist of Atlantic rainforest, mostly old second growth due to selective logging. The forest is, however, currently in the process of expansion (Olmos, 1997) since most of the island surface is protected as a state park (Parque Estadual de Ilhabela, ca. 27,000 ha) (Leite, 2003).

Citation: Leite, Y. & Patterson, B. 2008. Phyllomys thomasi. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 22 September 2014.
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