Squirrels of the World

84 Tamiasciurus mearnsi

Original biological assessments of Sierra de San Pedro Már-
tir described T. mearnsi as very common among other small
mammals; however, recent assessments found that Mearns’s
squirrel populations are usually low. The introduction of
eastern gray squirrels (Sciurus carolinensis) in 1946 may be a

serious threat; however, whether or not eastern gray squir-

rels remain in the Sierra de San Pedro Mártir is not known.

general references: Koprowski, Ramos, et al. 2006;

Yensen and Valdés-Alarcón 1999.

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