FIGURE 4.

Proportion of papers reviewed focused on different taxa that mention each trait type. We reviewed 712 papers published in 2018 from the functional trait literature covering 16 journals. We present the most commonly studied taxa, nonvascular plants (15), protists (15), bacteria (22), archaea (2), and viruses (1). Papers could include more than one type of taxa and trait type. Error bars show 95% bootstrapped confidence intervals. Bootstrapped confidence intervals were calculated by sampling from binary (YES = 1/NO = 0) vectors with replacement and calculating the distribution of proportions over 10,000 replicates (Manly, 2007)