Fig. 1.

Results of the best-fitting polynomial regression model to test for the shape of the functional response depicting the different leaf litter density treatments of a 1 g, b 2 g, c four g and d 8 g leaf litter per arena, respectively. The model included the negative linear term p ₁ = −0.0019 (SE = 0.0007, t = −2.731, p < 0.01) and four litter-dependent constants: p ₀(1 g) = −0.5989 (SE = 0.2057, t = −2.911, p < 0.01), p ₀(2 g) = −0.6860 (SE = 0.2115, t = −3.243, p < 0.01), p ₀(4 g) = −0.3267 (SE = 0.1927, t = −1.696, p = 0.092) and p ₀(8 g) = −1.0978 (SE = 0.2639, t = −4.161, p < 0.001)