Figure 1.
Long-term Zostera marina population trends at five sampling sites around the Isles of Scilly, from 1996–2018. (A) Proportion of quadrats occupied by seagrass (presence / absence). (B) Box-whisker panels for each site summarizing distributions of shoot densities from non-zero quadrats each year. Box midlines show medians. Boxes span interquartile ranges (IQR). Whiskers extend to data points within an additional 1.5 × IQR. Smoothing splines illustrate population trajectories.