Ecological Archives E090-015-A1

Eric M. Schauber, Matthew J. Connors, Brett J. Goodwin, Clive G. Jones, and Richard S. Ostfeld. 2009. Quantifying a dynamic risk landscape: heterogeneous predator activity and implications for prey persistence. Ecology 90:240–251.

Appendix A. Comparison of beta-binomial predictions and observed white-footed mouse track activity data.

   FIG. A1. Data were collected on three oak-forest plots (shapes) during three monthly periods (fills) in Millbrook, New York, 2003–2005. Each symbol represents the predicted probability and observed frequency of a particular number of mouse track events (ranging from 0 to 21) among trees in a plot and study period. The solid line indicates observed = predicted. Arrow in the top panel indicates an example: the beta binomial model for Tea plot in July 2003 generated a predicted probability of 0.052 that a random tree would have 13 track events, whereas the observed proportion of trees in that plot and time with 13 track events was 0.088.

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