Goodness-of-fit for spatial point process models of mound and colony distributions.

<p>Comparison of the spatial statistics <i>L_KA(r)</i>, <i>G_KA(r)</i>, and <i>G_AK(r)</i> for the observed spatial patterns and spatial patterns simulated from fitted full models containing an interspecific interaction and reduced models without an interspecific interaction. Goodness-of-fit for all occupied kangaroo rat mounds (<i>n</i> = 48) and harvester ant colonies (<i>n</i> = 212) during 2007 are shown in panels A, B, and C and for all occupied kangaroo rat mounds (<i>n</i> = 44) and recently founded harvester ant colonies (<i>n</i> = 162) during 2008 are shown in panels D, E, and F. Solid black lines represent the observed spatial statistics (<i>L_KA(r)</i>, <i>G_KA(r)</i>, and <i>G_AK(r))</i>. Dashed lines and shaded areas denote the 95% critical envelopes of spatial statistics generated from 999 Monte Carlo simulations of the reduced and full models, respectively.