Figure 1
From: Natural nutrient subsidies alter demographic rates in a functionally important coral-reef fish
Demographic rates for female Chlorurus sordidus around rat-free islands with abundant seabirds (blue, circles) compared to rat-infested islands with few seabirds (red, diamonds). (a, g) Each point represents measured values from an individual C. sordidus, (c, e) each point represents one island. (a) Curves represent fitted estimates from Bayesian models, (c, e, g) box limits represent first and third quantiles (25% and 75% percentiles), middle line represents the median (50% percentile), and whiskers represent smallest and largest observations less than or equal to 1.5 × inter-quartile range. (b, d, f, h) Bayesian posterior densities for the effect of seabird presence on the von Bertalanffy growth parameter k (b), maximum age (d), maximum length (f), and relative reproductive investment as measured by GSI (h). Positive values of the posterior distributions (blue fill) indicate a positive effect of seabird presence on the response, negative values (red fill) indicate a negative effect of seabirds (i.e., positive effect of invasive rat presence). Points represent median highest posterior density estimate and lines represent 75% and 95% highest posterior distribution intervals (HPDI). Rat and seabird silhouettes were obtained from phylopic.org under Public Domain Dedication 1.0 licenses.
