Ecological Archives A021-128-A1

Thomas F. Cuffney, Song S. Qian, Robin A. Brightbill, Jason T. May, and Ian R. Waite. 2011. Response to King and Baker:limitations on threshold detection and characterization of community thresholds. Ecological Applications 21:2840–2845.

Appendix A. Invertebrate responses to urbanization in the 9 metropolitan areas based on EPT richness (EPT), ordination scores (NMDS), and organism tolerances (RICHTOL) summarized as linear and loess regressions and compared with change points defined by TITAN analysis.

FIG. A1. Responses of EPT richness to urban intensity in the 9 metropolitan areas. Linear regressions (grey lines with dotted grey lines indicating 95% confidence limits) are compared to loess regressions (black lines). Vertical dotted lines indicate the change points (mean with 95% confidence limits) defined by TITAN analysis.




FIG. A2. Responses of NMDS ordination axis 1 to urban intensity in the 9 metropolitan areas. Linear regressions (grey lines with dotted grey lines indicating 95% confidence limits) are compared to loess regressions (black lines). Vertical dotted lines indicate the change points (mean with 95% confidence limits) defined by TITAN analysis.