Bee and butterfly records indicate diversity losses in western and southern north america, but extensive knowledge gaps remain

HIGHLIGHTS

• What: The authors aim to capture as much as possible the full diversity of potential flower visitors, yet only a small fraction of invertebrate species beyond the bees and butterflies have been examined for diet or pollen transport, so a species-level analysis would be too restricted in scope. The agreement between analyses performed at multiple taxonomic levels across all three parts of the study provides evidence that records of pollinators in at least four key groups (Apidae, Megachilidae, Pieridae, and Papilionidae) have experienced disproportionate increases in the Knowledge of North American pollinators eastern and southeastern the . . .
  

   

  

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