Recovery Plan for the Northern Spotted Owl - DRAFT

Table of ContentsAbstract .............................................. 285Studies of Habitat Suitability .............................................. 285Types of information collected .............................................. 286Use of the information .............................................. 288Recent Literature .............................................. 290California .............................................. 291Oregon and Washington .............................................. 293Structural Features of Sites Used by Owls .............................................. 294Results .............................................. 294Discussion .............................................. 297Amount of Habitat in Home Ranges .............................................. 302Results .............................................. 302Discussion .............................................. 303Habitat Selection for Roosting and Foraging .............................................. 304Results .............................................. 305Discussion .............................................. 307Abundance of Owls in Different Habitats .............................................. 307Results .............................................. 308Discussion .............................................. 308Demographic Rates in Different Habitats .............................................. 309Results .............................................. 309Discussion .............................................. 310Recommendations for Future Research .............................................. 312Standardize habitat measurements .............................................. 312Prepare habitat maps for demographic study areas ............................ 312Give high priority to studying selected areas ...................................... 312Give high priority to studying selected habitats .................................. 313Study functions and ways of developing understory ........................... 313Literature Cited .............................................. 315283