Appendix F. Fit of the Gaussian distribution to daily displacement distance measured for Strongylocentrotus droebachiensis.
We parameterize the redistribution kernel using a frequency distribution of daily displacement distance measured for Strongylocentrotus droebachiensis at two rocky subtidal sites with weak currents (Dumont et al. 2006). A Gaussian distribution with a mean of 0 and a standard deviation of 1.33 provided the best fit (r2 = 0.97) to the data (Fig. F1).
FIG. F1. Fit of the Gaussian redistribution kernel to the daily distance displaced by urchins, Strongylocentrotus droebachiensis, on a rocky bottom, observed by Dumont et al. (2006) (n = 48).
Dumont, C. P., J. H. Himmelman, and M. P. Russell. 2006. Daily movement of the sea urchin Strongylocentrotus droebachiensis in different subtidal habitats in eastern Canada. Marine Ecology Progress Series 317:8799.