Use of restoration-treated ponderosa pine forest by tassel-eared squirrels

Chad D. Loberger, Tad Theimer, Steven S. Rosenstock, Catherine S. Wightman

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

The tassel-eared squirrel (Sciurus aberti) is dependent on ponderosa pine (Pinus ponderosa) for food and cover and is likely to be affected by management treatments intended to restore currently dense ponderosa pine forests to presettlement, more-open stand structure. We used radiotelemetry to determine how restoration treatments affected habitat use by tassel-eared squirrels. Mean 50% fixed kernel core areas and 85% fixed kernel home ranges were significantly smaller in winter (core = 1.1 ha; home range = 5.1 ha) than nonwinter (core = 3.48 ha; home range = 13.81 ha), and squirrels selected untreated forests and areas with high (51-75%) canopy cover for these winter areas. During nonwinter core areas and home ranges expanded to include treated areas with high canopy cover (51-75%). Squirrels placed the majority of winter nests in areas with >51% canopy cover and high (0.0601-0.0819 kg/m 3) crown bulk density. Given the apparent importance of denser, untreated patches and treated areas with canopy cover of 51-75% in winter, we suggest retaining some areas with these characteristics where it is compatible with other forest management objectives.

Original languageEnglish (US)
Pages (from-to)1021-1027
Number of pages7
JournalJournal of Mammalogy
Volume92
Issue number5
DOIs
StatePublished - Oct 14 2011

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Keywords

  • Arizona
  • home range
  • Pinus ponderosa
  • restoration
  • Sciurus aberti

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Ecology
  • Nature and Landscape Conservation

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