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. 2016 Jun 21;6(14):4936–4946. doi: 10.1002/ece3.2253

Figure 2.

Figure 2

Simulated influence of biodiversity on fecal detritus production and removal rates in the western Brazilian Amazon. The intact communities contained seven detritus producer mammal species and 15 detritus consumer dung beetle species. Extinction was simulated both within individual trophic levels (monotrophic) and across trophic levels (bitrophic), where producer extinction was propagated to consumers according to network structure (see Fig. 1). For both monotrophic (A–F) and bitrophic (G–O) species loss, extinction was simulated as random (random), inversely proportional to observed species abundance (rarity) or proportional to body mass (body mass). Function in the monotrophic extinction models was calculated as the normalized daily rate of detritus production by the mammal community (F p) or detritus consumption by the beetle community (F r). Function in the bitrophic extinction models was calculated both as monotrophic (F r as above) and bitrophic (the proportion of detritus produced by mammals that is consumed by beetles, F r/F p). All panels show mean and 95% confidence interval of mean function (F r, F p , or F r/F p). Insets denote slope and 95% confidence interval.