Scobie, E. H., R. R. Palmer, and J. L. Koprowski. 2014. Sciurus pyrrhinus (Rodentia: Sciuridae). Mammalian Species 46:88-92.

thackerk1 — Tue, 30 Jul 2019 19:51:28 +0000

Authors

Emily H. Scobie

Rosa R. Palmer

John L. Koprowski

Sciurus pyrrhinus O. Thomas, 1898 is a rodent commonly called the Juńın red squirrel or ardilla rojiza. This large-bodied, arboreal species is characterized by a rufous dorsum and an orange tail, and is 1 of 28 species in the genus Sciurus. Endemic to Peru, S. pyrrhinus is found on the eastern slopes of the Andes between 600 and 1,500 m above sea level, spanning rain forest and montane forest habitat. Described as common within its limited distribution, the Peruvian Ministry of the Environment classifies S. pyrrhinus as ‘‘Vulnerable’’ and the International Union for Conservation of Nature and Natural Resources considers it ‘‘Data Deficient.’’

Additional Information

Sciurus pyrrhinus (Rodentia: Sciuridae)

Date of publication:

2014

Topics

Juńın red squirrel

ardilla rojiza

lowland tropical rainforest

Neotropics

montane forest

Koprowski, J. L., N. Ramos, B. S. Pasch, and C. A. Zugmeyer. 2006. Observations on the ecology of the endemic Mearns's squirrel (Tamiasciurus mearnsi). The Southwestern Naturalist 51(3): 426-430.

thackerk1 — Mon, 22 Jul 2019 23:06:13 +0000

Authors

John L. Koprowski

Nicolás Ramos

Bret S. Pasch

Claire A. Zugmeyer

Mearns’s squirrel (Tamiasciurus mearnsi) is an endemic species of the montane forest of the Sierra de San Pedro Mártir in Baja California. Despite having been described for the first time in 1893 and a listing as threatened by Mexican authorities, no information is available on the ecology of this southernmost Tamiasciurus. We observed the ecology of Mearns’s squirrels during 2004 and 2005. Mearns’s squirrel apparently does not form larderhoards, known as middens, or leaf nests commonly built by other members of this genus. We observed Mearns’s squirrels to feed heavily on tree seeds and fungi. We noted males with scrotal testes and a female in estrus in late spring. We did not observe eastern gray squirrels (Sciurus carolinensis), introduced to the western Sierra in 1946, within the areas that we searched for T. mearnsi. Mearns’s squirrels might possess unique adaptations for their persistence in the dry, open forest of the Sierra de San Pedro Mártir.

Additional Information

OBSERVATIONS ON THE ECOLOGY OF THE ENDEMIC MEARNS’S SQUIRREL (TAMIASCIURUS MEARNSI)

Date of publication:

2006

Topics

Mearn’s squirrel

endemic species

adaptations

montane forest

Sierra de San Pedro Mártir

conservation.arizona.edu - montane forest

Scobie, E. H., R. R. Palmer, and J. L. Koprowski. 2014. Sciurus pyrrhinus (Rodentia: Sciuridae). Mammalian Species 46:88-92.

Authors

Additional Information

Topics

Koprowski, J. L., N. Ramos, B. S. Pasch, and C. A. Zugmeyer. 2006. Observations on the ecology of the endemic Mearns's squirrel (Tamiasciurus mearnsi). The Southwestern Naturalist 51(3): 426-430.

Authors

Additional Information

Topics