Figure 3.

Increasing resource dispersion and topographic complexity nearly eliminated competition. (A) Ll body condition showed significant differences at every census after 30 days (ANOVA all P < 0.03), but geckos with topographic structure improved more rapidly than those with dispersed resources. At census 7, both treatments were significantly different from the “urban control” (ANOVA F = 26.5, P = 0.002; Fisher’s PLSD P < 0.001). (B) More complex topographical structure reduced interspecific competition more than intraspecific competition in Ll. The interaction of competitor type (intraspecific vs. interspecific) and topographic structure (simple/complex) was significant in the last two censuses (ANOVA structure F > 13.0, P < 0.01; competitor F < 2.0, P > 0.1; structure × competitor F = 7.7, P < 0.02). The relative magnitude of inter- and intraspecific competition was completely reversed by increasing topographic complexity.