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Fig. 1 | BMC Ecology

Fig. 1

From: Demographic consequences of reproductive interference in multi-species communities

Fig. 1

Presence of C. nigoni interferes with reproduction of C. elegans and C. briggsae. ac Growth rate estimates for the C. elegans experimental block show significant differences in wildtype C. elegans (wt) growth rate when grown alone or in the presence of C. nigoni, but no effect of C. nigoni on growth rate estimates for vulvaless and feminized strains of C. elegans. df In the C. briggsae experimental block, growth rate estimates for both vulvaless and feminized strains of C. briggsae are reduced in the presence of C. nigoni, whereas wildtype C. briggsae growth rates were not significantly affected. Growth rate estimates for each species or reproductive phenotype in mixed communities (r′) used Eq. 4 that incorporates direct growth rate estimates (r) from pure strains based on Eq. 2. The growth rates from the different community types were compared using a t test with Bonferroni correction for multiple tests in (a wt comparison t = 4.22, df = 18, P ≤ 0.001; C. nigoni comparison t = − 3.86, df = 18, P ≤ 0.001) and (d wt comparison t = − 0.03, df = 12.25, P = 0.98; C. nigoni comparison t = 0.03, df = 11.25, P = 0.98) (α = 0.025), where asterisks (*) indicate differences (α = 0.05) and ns indicates non-significant differences (b t = − 1.59, df = 18, P = 0.13; c t = − 1.76, df = 18, P = 0.095; e t = − 2.22, df = 20, P = 0.038; f t = − 10.91, df = 18, P ≤ 0.001). Boxplot whiskers indicate 1.5*(interquartile range) and open circles show estimates for each replicate population

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