Table 3. Levels of taxonomic resolution for selected prey items used in Food Web Dynamics Program analyses and summaries. ("Collection Category" is the minimum level of taxonomic resolution at which these data are sampled, with some grouping of invertebrates and fish prey at the species level. This category and the actual prey name represent the lowest taxonomic resolution, and are used in analyses for specific prey items or a single or small group of predators. "Analytical Category" is a broader taxonomic level that groups invertebrates to a higher level and fish to family. This category is used for many of our multispecies analyses and less-detailed diet summaries. "General Category" groups prey at the phylum or class level, and is used for more cursory diet summaries.)