Figure legends
Figure 1. Experimental design and sampling scheme (white dots, three
replicates) of the litterbags in the three exposure scenarios: 0:100 (0
days terrestrial followed by 56 days aquatic), 25:75 (14 days
terrestrial followed by 42 days aquatic), and 50:50 (28 days terrestrial
followed by 28 days aquatic). The day 0 samples were used to assess
initial oven-dry mass of the other samples. On the transition between
the terrestrial and the aquatic environment, one set of samples was
collected for assessing decomposition on the terrestrial environment.
Figure 2. Relationship between expected and observed values during 56
days decomposition under the three terrestrial:aquatic exposure
scenarios: 0:100 (100% aquatic), 25:75 (25% terrestrial and 75%
aquatic), and 50:50 (50% terrestrial and 50% aquatic). A,B,C. % mass
loss; D,E,F. mg ergosterol
gAFDM-1; G,H,I. number of conidia
gAFDM-1 day-1;
J,K,L,N,O. number bag‑1; M. mg
bag-1. The dashed line represents 1:1 (no difference
between expected and observed values). N=number of data-pairs and
percentage of values higher-than-expected (above the 1:1 line),
lower-than-expected (below the 1:1 line) or equal-to-expected (on the
1:1 line). Inset shows average (± 95% CL) of observed (O) and
expected (E) values across the three exposure scenarios, an asterisk
indicating significant differences after 2-way ANOVA (Table 2). Exposure
scenarios with different superscript letters are significantly different
after Tukey HSD test, an asterisk indicates a significant effect not
detected by Tukey’s HSD test.
Figure 3. Global relative mixture effect (RME, mean ± 95% CL) and
relative individual performance (RIP, mean ± 95% CL) on the study
variables during 56 days decomposition under the three
terrestrial:aquatic exposure scenarios, 0:100 (100% aquatic), 25:75
(25% terrestrial and 75% aquatic), and 50:50 (50% terrestrial and
50% aquatic). Closed red symbols denote significant RME or RIP effects,
i.e., the 95% CL do not cross the zero line. Number of data-pairs: (a)
39, 50, 117; (b) 22, 14, 14; (c) 39, 39, 39; (d) 39, 49; (e) 21, 14,
14; (f) 39, 85;(g) 33, 26, 26.
Figure 4. Relative mixture effect (RME, mean ± 95% CL) on the study
variables during 56 days decomposition under each of the three
terrestrial:aquatic exposure scenarios, 0:100 (100% aquatic), 25:75
(25% terrestrial and 75% aquatic), and 50:50 (50% terrestrial and
50% aquatic). Closed red symbols denote significant RME effects, i.e.,
the 95% CL do not cross the zero line. Number of data-pairs: (a, e, g,
i) 12, 15, 12; (b) 19, 19, 12; (c) 36, 45, 36; (d) 7, 9, 6; (f, h) 6, 5,
3.
Figure 5. Relative individual performance (RIP, mean ± 95% CL) on the
study variables for alder and poplar leaf litter during 56 days
decomposition under each of the three terrestrial:aquatic exposure
scenarios, 0:100 (100% aquatic), 25:75 (25% terrestrial and 75%
aquatic), and 50:50 (50% terrestrial and 50% aquatic). Closed red
symbols denote significant RIP effects, i.e., the 95% CL do not cross
the zero line. Number of data-pairs: (a) 12, 15, 12; (b, c) 18, 19, 12;
(d) 27, 28, 30; (e) 6, 9, 6; (f) 9, 12, 12; (g, j) 6, 5, 3; (h, i) 9, 8,
9.
Figure 6. Relative mixture effect (RME, mean ± 95% CL) on the process
of decomposition (1/3 mass loss, 1/3 decomposers, and 1/3 detritivores)
during 56 days, globally across scenarios (global) and under each of the
three terrestrial:aquatic exposure scenarios, 0:100 (100% aquatic),
25:75 (25% terrestrial and 75% aquatic), and 50:50 (50% terrestrial
and 50% aquatic). Closed red symbols denote significant RME effects,
i.e., the 95% CL do not cross the zero line. Number of data-pairs: 206,
67, 79, 60.