Fig 1.
Expert agreement on trophic guild assignment.
(A) The distribution of the agreement (i.e., proportion of species assigned to the same trophic category) across the 32 comparisons between pairs of experts. The red dotted line represents the median. (B) Agreement between pairs of experts by trophic category. The data underlying this figure may be found in https://github.com/valerianoparravicini/Trophic_Fish_2020. H, herbivores and detritivores; I, invertivores; O, omnivores; P, piscivores; PK, planktivores.
Fig 2.
Confusion matrices of the agreement between pairs of experts that share at least 200 species in common and define all 5 trophic categories.
Colors represent proportions of species in each trophic guild as classified by experts. The data underlying this figure may be found in https://github.com/valerianoparravicini/Trophic_Fish_2020. H, herbivores and detritivores; I, invertivores; O, omnivores; P, piscivores; PK, planktivores.
Fig 3.
Bipartite network including 615 fish species (grouped into 8 trophic guilds) and their prey items (grouped into 38 categories; see S1 Table).
The relative proportion of each prey category consumed by each trophic guild corresponds with the width of each interaction bar. The pie charts show the relative proportion of fish families within each trophic guild. The data underlying this figure may be found in https://github.com/valerianoparravicini/Trophic_Fish_2020. HMD, herbivores, microvores, and detritivores.
Fig 4.
Phylogenetic tree of 535 reef fish species with fitted trophic guild assignments based on empirical dietary data.
Trophic guild predictions were made with a Bayesian multinomial phylogenetic regression. The probability of trophic guild assignments for each species is visualized with color scales (depicted above the phylogenetic tree), with darker colors indicating a higher probability of assignment. In the outer black ring, each distinct segment represents a fish family (with silhouettes included for the most speciose families). Uncertainty of overarching trophic guild assignment for each fish family is visualized with negentropy values (i.e., reverse entropy); thus, darker shades indicate a higher degree of certainty of trophic guild assignment. Fish shapes are available at https://github.com/simonjbrandl/fishape/tree/master/shapes. The data underlying this figure may be found in https://github.com/valerianoparravicini/Trophic_Fish_2020.