FMS will solve these problems, by assigning an arbitrary low (e.g. 0.1%) cover value to species sampled only as pa. Ideally, FMS should also add a note in the _x field
Distribution of plots across datasets:
```{r, echo=F, eval=F}
```{r, echo=F}
knitr::kable(table(header$Dataset), caption="Plots per dataset") %>%