A Habitat Suitability Index Model for Gray Squirrel in an Urban Cemetery

Abstract

Urban cemeteries are among the largest and most stable of all greenspace systems. Extensive vegetation in cemeteries ameliorates the urban environment and provides habitat for wildlife. The presence of wildlife in cemeteries enhances the visitation experience for many city dwellers who use cemetery grounds as places for passive recreation, as well as for those visiting gravesites. This study describes a Habitat Suitability Index (HSI) model for the eastern gray squirrel (Sciurus carolinensis) developed to demonstrate how tree species and size class data can be used to understand and manage the habitat requirements of this important urban species. The HSI model is used to identify the habitat features limiting abundance of gray squirrel on three sites within an urban cemetery in Syracuse, New York. Management suggestions for a tree planting and removal program are made based on the result of baseline habitat suitability and a hazard removal scenario.