Appendix F. Comparison of Habitat Conditions for Spotted Owls in 14 Demographic Study Areas to Conditions on Federal Lands Surrounding Them

摘要

Several meta-analyses of the demographic rates of northern spotted owls have been conducted over the past 2 decades to estimate fecundity, survival rates, and annual rate of population change for several different study areas. Interpretation of theseresults and any possible inferences to broader geographic areas have raised some questions about how well the study areas represent the physiographic provinces in which they are located. In fact, Boyce et al. (2005) recently speculated that the study areas likely have better owl habitat and demographic performance than other owl populations. In the latest meta-analysis of the demographic rates of northern spotted owls, Anthony et al. (2004) stated.