Conditions: Sunny, 80's
Start: 10:00 a.m. April 5
End: 4:30 p.m. April5
Habitat: Field with scattered trees, no apparent flowers.
Bees: Andrena, Osmia, Lasioglossum, Ceratina
Experiment: 3.25 ounce white solo cups were alternated with a completely filled 12 ounce white party store cup and a half-filled white 12 ounce party store cup. Bowls were spaced 5 m apart and filled with soapy water (unscented laundry detergent and tap water).
Problem: I only sprinkled a little laundry detergent into the several gallons of water for the experiment...apparently this was not sufficient, as I saw bees land on the surface tension and fly or crawl out. I will go back to a more concentrated solution.
Despite low catch there was no strong indication of a bowl effect.
|3.24 Oz. Full||0||0||0||0||0||0||0||0||0||1||0.10|
|12 Oz. Full||0||0||0||0||0||0||1||1||n||0||0.22|
|12 Oz. Half||1||0||0||0||0||0||1||1||0||0||0.30|