We want to do an analysis comparing the size of individuals on the Control
plots to the Long-term Krat Exclosures. Write a query that returns the year,
genus, species, weight and the plot_type for all cases where the plot
type is either Control or Long-term Krat Exclosure. Be sure to choose only
rodents and exclude individuals that have not been identified to species (i.e.,
exclude species with sp. in the species column). Remove any records where the
weight is missing. Save this query as
size_comparison_controls_vs_krat_exclosures.