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Supplemental Figure Legends
2
Figure S1. Estimated effect sizes based on log response ratios from the subset of data used in our
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weighted analysis for comparison with the unweighted analysis (Figure 2 in the main text). The
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phototroph and heterotroph for each mutualism type (blue=marine, green=terrestrial) and the
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overall median response across all studies as (A) pooled across nutrients or under (B) nitrogen,
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(C) phosphorus, or (D) nitrogen+phosphorus enrichment. Thin and thick lines depict the 95%
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and 80% Bayesian credible intervals respectively. Numbers in parentheses denote the number of
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experiments used in each calculation.
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Figure S2. Results from our weighted Bayesian Type II regression of heterotroph log response
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ratios against phototroph log response ratios for comparison with the unweighted model (Figure
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3 in the main text). Panels are (A) Algae-Clams, (B) Algae-Coral, (C) Algae/Cyanobacteria-
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Fungi, (D) Plant-AM Fungi, (E) Plant-EM Fungi, and (F) Plant-Bacteria. Shaded area represents
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the 95% Bayesian credible interval of the regression.
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Figure S3. Effect sizes plotted against total nitrogen and phosphorus enrichment magnitude. For
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each group, enrichment metrics are: (A) Algae-Clams: µM; (B) Algae-Coral: µM; (C)
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Algae/Cyanobacteria-Fungi: mg m-2; (D) Plant-AM Fungi: mg kg-1; (E) Plant-EM Fungi: mg kg-
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1
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daily phosphorus enrichment on lichen.
(F) Plant-Bacteria: mg m-2. Note that no measurements were available to examine the effect of
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Figure S4. Effect sizes plotted against average daily nitrogen and phosphorus enrichment levels.
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For each group, enrichment metrics are: (A) Algae-Clams: µM day-1; (B) Algae-Coral: µM day-1;
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(C) Algae/Cyanobacteria-Fungi: mg m-2 day-1; (D) Plant-AM Fungi: mg kg-1 day-1; (E) Plant-EM
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Fungi: mg kg-1 day-1 (F) Plant-Bacteria: mg m-2 day-1. Note that no measurements were available
26
to examine the effect of daily phosphorus enrichment on lichen.
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Table Legends
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Table S1. List of studies used in our analyses. “Type” indicates the mutualism group. “Site”
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denotes whether the study was conducted in an outdoor field setting (Field) or in a lab or
31
glasshouse (Lab). “Location” provides the country or ocean region where the study took place.
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“Treat” denotes the type of nutrients provided with multiple nutrients listed if a study contained
33
independent treatments of different nutrients. “N” provides the enrichment level and units for N-
34
enrichments while “P” provides the enrichment level and units for P enrichments. “Duration”
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provides the length of the study in days. “Metric (P/H)” indicates the response metric used to
36
measure the performance for the phototroph partner / the heterotroph partner. “Wtd. Anl.”
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Provides a Yes/No indication of whether or not the study was included in our weighted analysis.
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Table S2. Calculated slopes and the probability that slopes differ from zero for Bayesian Type II
39
regressions of phototroph versus heterotroph response ratios for weighted and unweighted
40
analyses. N indicates the number of experiments available for the regressions.
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Table S3. The mean log response ration (RR) and upper and lower 95% Bayesian credible
42
intervals for phototroph and heterotroph partners in the Plant-Fungi and Plant-Bacteria
43
mutualisms calculated from studies in natural field settings versus controlled lab or glass-house
44
environments. N indicates the number of experiments available for the calculations.
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Figure S1
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Figure S2
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Figure S3.
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Figure S4
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