Shari Ketcham

Past Graduate Student

  • ENR2 

    1064 E Lowell St

    Tucson, AZ 85719

Differential Response of a Native Arizona Gray Squirrel and an Introduced Abert’s Squirrel to a Mosaic of Burn Severities 

Major Questions: 

  • What burn severities do tree squirrels use post fire regarding resources such as dreys, cavities, and food?
  • How large are the patch sizes of the burn severities that tree squirrels choose to use?
  • Are there any competition factors between tree squirrels for resources post fire? If so, what resources do tree squirrels compete for?
  • What is the estimated abundance and distribution of tree squirrels on the Santa Catalina Mountains?


Ketcham, S. L. and J. L. Koprowski. 2013. Impacts on wildfire on wildlife in Arizona: A synthesis. In Gottfried, Gerald J.; Ffolliott, Peter F.; Gebow, Brooke S.; Eskew, Lane G.; Collins, Loa C., comps. 2013. Merging science and management in a rapidly changing world: Biodiversity and management of the Madrean Archipelago III and 7th Conference on Research and Resource Management in the Southwestern Deserts; 2012 May 1-5; Tucson, AZ. Proceedings. RMRS-P-67. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 593 p. PDF of Article