The IUCN Red List of Threatened Species™
ISSN 2307-8235 (online)
IUCN 2008: T17226A6859456
Paralomys gerbillus, Gerbil Leaf-eared Mouse
Assessment by: Zeballos, H. & Vivar, E.
View on www.iucnredlist.org
Citation: Zeballos, H. & Vivar, E. 2008. Paralomys gerbillus. The IUCN Red List of Threatened Species
2008: e.T17226A6859456. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T17226A6859456.en
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THE IUCN RED LIST OF THREATENED SPECIES™
Taxonomy
Kingdom
Phylum
Class
Order
Family
Animalia
Chordata
Mammalia
Rodentia
Cricetidae
Taxon Name: Paralomys gerbillus (Thomas, 1900)
Synonym(s):
• Phyllotis gerbillus
Common Name(s):
• English:
Gerbil Leaf-eared Mouse
Taxonomic Notes:
Although named as a genus and recognized early as such (Cabrera 1961, Gyldenstolpe 1932, Pearson
1958), Paralomys was later submerged as a subgenus of Calomys (Ellerman 1941) or as a subgenus or
full synonym of Phyllotis (Hershkovitz 1962, Osgood 1947, Pearson and Patton 1976). Uncertainty over
its monophyletic union with those species and taxonomic rank has been revived by broad phylogenetic
studies of morphological characters that suggest the distant relationship of gerbillus and amicus to
other Phyllotis (Braun 1993, Steppan 1995). Braun (1993) elevated Paralomys to its former generic
status, but Steppan (1995) reservedly maintained it as a synonym for want of strongly supported
cladistic structure and demonstrable monophyly of gerbillus-amicus in the various trees generated (also
see Steppan and Sullivan 2000). Musser and Carleton (2005) include this species in the Paralomys
genus; however, some researchers suggest that it should be Phyllotis.
Assessment Information
Red List Category & Criteria:
Least Concern ver 3.1
Year Published:
2008
Date Assessed:
June 30, 2008
Justification:
This species is listed as Least Concern in view of its wide distribution, presumed large population, and
because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.
Previously Published Red List Assessments
1996 – Lower Risk/least concern (LR/lc)
Geographic Range
Range Description:
This species is known from Sechura Desert, northwest Peru (Musser and Carleton, 2005). It has been
recorded from around 50 m.
© The IUCN Red List of Threatened Species: Paralomys gerbillus – published in 2008.
http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T17226A6859456.en
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Country Occurrence:
Native: Peru
© The IUCN Red List of Threatened Species: Paralomys gerbillus – published in 2008.
http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T17226A6859456.en
2
Distribution Map
© The IUCN Red List of Threatened Species: Paralomys gerbillus – published in 2008.
http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T17226A6859456.en
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Population
It is a rare species.
Current Population Trend: Stable
Habitat and Ecology (see Appendix for additional information)
It is terrestrial and is found in sandy areas with mesquite vegetation. It is not found in disturbed areas.
Systems: Terrestrial
Threats
There appear to be no major threats to this species.
Conservation Actions (see Appendix for additional information)
It is present in the Santuario Historico Bosque de Pomac, a protected area. Further research in general is
needed into this species.
Credits
Assessor(s):
Zeballos, H. & Vivar, E.
Reviewer(s):
Amori, G. (Small Nonvolant Mammal Red List Authority) & Schipper, J. (Global
Mammal Assessment Team)
© The IUCN Red List of Threatened Species: Paralomys gerbillus – published in 2008.
http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T17226A6859456.en
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Bibliography
Cabrera, A. 1961. Catílogo de los mam¡feros de America del Sur. Revista del Museo Argentino de Ciencias
Naturales Bernardino Rivadavia 4: 309-732.
Hershkovitz, P. 1962. Evolution of Neotropical cricetine rodents (Muridae) with special reference to the
phyllotine group. Fieldiana: Zoology 46: 1-524.
Musser, G. G. and Carleton, M. D. 2005. Superfamily Muroidea. In: D. E. Wilson and D. A. Reeder (eds),
Mammal Species of the World: a geographic and taxonomic reference, pp. 894-1531. The John Hopkins
University Press, Baltimore, USA.
Pearson, O. 1972. New information on range and relationships within the rodent genus Phyllotis in Peru
and Ecuador. Journal of Mammalogy 53: 677-686.
Citation
Zeballos, H. & Vivar, E. 2008. Paralomys gerbillus. The IUCN Red List of Threatened Species 2008:
e.T17226A6859456. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T17226A6859456.en
Disclaimer
To make use of this information, please check the Terms of Use.
External Resources
For Images and External Links to Additional Information, please see the Red List website.
© The IUCN Red List of Threatened Species: Paralomys gerbillus – published in 2008.
http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T17226A6859456.en
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Appendix
Habitats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Habitat
Season
Suitability
Major
Importance?
3. Shrubland -> 3.5. Shrubland - Subtropical/Tropical Dry
-
Suitable
-
8. Desert -> 8.2. Desert - Temperate
-
Suitable
-
Conservation Actions in Place
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Conservation Actions in Place
In-Place Land/Water Protection and Management
Occur in at least one PA: Yes
Research Needed
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Research Needed
1. Research -> 1.1. Taxonomy
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
1. Research -> 1.5. Threats
Additional Data Fields
Population
Population severely fragmented: No
© The IUCN Red List of Threatened Species: Paralomys gerbillus – published in 2008.
http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T17226A6859456.en
6
The IUCN Red List Partnership
The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species
Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN
Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation
International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas
A&M University; Wildscreen; and Zoological Society of London.
THE IUCN RED LIST OF THREATENED SPECIES™