Ototylomys phyllotis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Mammalia Rodentia Cricetidae

Scientific Name: Ototylomys phyllotis Merriam, 1901
Common Name(s):
English Big-eared Climbing Rat
Taxonomic Notes: Will be transferred to family Cricetidae.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-08-24
Assessor(s): Reid, F. & Timm, R.
Reviewer(s): Amori, G.
This species is listed as Least Concern in view of its wide distribution, presumed large population, occurrence in a number of protected areas, and because it does not appear to be under threat and is unlikely to be declining at nearly the rate required to qualify for listing in a threatened category.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species occurs in central Costa Rica north to the Yucatán Peninsula, south Tabasco, and north Chiapas, Mexico. There is also an isolated record from north central Guerrero, Mexico (Musser and Carleton 2005). It occurs from lowlands to 1,900 m (Reid 1997).
Countries occurrence:
Belize; Costa Rica; El Salvador; Guatemala; Honduras; Mexico; Nicaragua
Additional data:
Upper elevation limit (metres):1900
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is fairly common (Reid 1997).
Current Population Trend:Stable
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species occurs in a wide variety of habitats, from dry deciduous lowland forest and dense second growth to wet highland forest. It is often found near rocks and limestone outcroppings (Reid 1997).

This species is nocturnal and may be seen on the ground or among vines and low vegetation. It usually forages 3 m or less from the ground (Lawlor 1982). The diet includes fruit of borage (Cordia diversifolia) and madders, seeds, and vegetable matter (Lawlor 1969). A nest found in an abandoned building in northwest Costa Rica was made of grass and lined with plant down. It was a shallow, open structure, about 15 cm wide. Pregnant females have been recorded at all months of the year, but most populations do not breed for 1 to 2 months during the dry season. Litter size is 2 to 4 young, averaging about 2. Young are highly precocious, almost half adult size at birth, and cling to the mother’s nipples until nearly full size (Reid 1997).
Generation Length (years):1-2

Threats [top]

Major Threat(s): None known.

Conservation Actions [top]

Conservation Actions: Found in protected areas in Costa Rica, Guatemala, and the Yucatan.

Errata [top]

Errata reason: This errata assessment has been created because the map was accidentally left out of the version published previously.

Citation: Reid, F. & Timm, R. 2016. Ototylomys phyllotis (errata version published in 2017). The IUCN Red List of Threatened Species 2016: e.T15666A115129272. . Downloaded on 25 April 2018.
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