Landscape-level assessment of Abert's Squirrel and Red Squirrel in Mixed Conifer Forest

Sandra L. Doumas, John L. Koprowski, William O. Noble

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We examined feeding sign of Abert's squirrels (Sciurus aberti) and red squirrels (Tamiasciurus hudsonicus) each spring 2005-2009 in mixed conifer forests in northern Arizona, USA. We used high-resolution aerial photographs to assess vegetation characteristics where feeding sign surveys were conducted and analyzed the association of feeding sign frequency to vegetation characteristics to compare and contrast species habitat use. At the landscape level, we found considerable overlap in characteristics of forests used by the two species of native tree squirrels. Red squirrels used denser forests with fewer and smaller gaps than do Abert's squirrels, and Abert's squirrels used more ponderosa pine (Pinus ponderosa) than do red squirrels.

Original languageEnglish (US)
Pages (from-to)240-246
Number of pages7
JournalSouthwestern Naturalist
Issue number2-3
StatePublished - Jun 1 2015

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics


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