## Not run: ------------------------------------
#
# tmp <- fx.total(secrdemo.0)
#
# ## to plot we must name one of the covariates:
# ## the Dsurface default 'D.0' causes an error
#
# plot(tmp, covariate = 'D.sum', col = terrain.colors(16),
# plottype = 'shaded')
# plot(tmp, covariate = 'D.sum', col = 'white', add = TRUE,
# plottype = 'contour')
# spotHeight(tmp, prefix = 'D.sum')
#
# fxsurface <- fx.total(ovenbird.model.D, sessnum = 3)
# plot(fxsurface, covariate = 'D.sum')
#
## ---------------------------------------------
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