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To measure competition, researchers performed temporary honeybee-exclusion experiments by closing hive entrances before sunrise for 11 hours per day during the peak wild bee foraging season.

The bees were kept inside until late afternoon—just long enough for researchers to observe how wild bees behaved in their absence. “It was a unique experience. Never boring,” Pasquali says.

“Bee” on alert. Roughly 250 million bees escaped into the wild when a commercial semi-truck rolled over in Washington state, prompting officials to warn locals to stay away from the area.

To measure competition, researchers performed temporary honeybee-exclusion experiments by closing hive entrances before sunrise for 11 hours per day during the peak wild bee foraging season.