“Bumblebees (Bombus terrestris) colonies were obtained from Koppert UK. Each experimental group contained replicates from two colonies. “…
https://journals.plos.org/plosone/article/file?type=printable&id=10.1371/journal.pone.0276937
https://journals.plos.org/plosone/article/file?type=printable&id=10.1371/journal.pone.0276937