This blog is meant to report on small experimental trials, testing various facets of trapping bees and pollinators attracted to color based traps....bowl, pan, vane, moericke, etc. It is also a place where observations and thoughts regarding their effectiveness or ineffectiveness can be posted. Comments are encouraged.

Friday, April 2, 2010

2 April 2010 - Styrofoam / Solo Bowl Experiment

Location: Beltsville, MD
Start: Noon April 1
End: 9:30 a.m. April 2
Habitat: Bottomland Mixed forest with many spring beauties in bloom
Bees: Osmia, Andrena, Nomada
Experiment: 21 bowls each of 3.25 ounce white solo brand bowls and similar sized cut down styrofoam cups, the two types were alternated in a transect through the woods and placed 5 m apart.

Results below are styrofoam in the left column and solo in the right column. They are presented as pairs, but in reality they are simply adjacent to one another in the transect. Numbers are total number of bees.

Helping on the this experiment were Molly Passacantando and Lisa Guide (Many thanks).

Styro Solo
9 18
2 3
1 8
1 7
0 4
0 5
1 6
0 8
3 2
5 12
3 8
0 5
2 15
1 11
0 17
n/a 15
1 3
0 10
3 19
5 21
7 18

44 215

Results are extremely clear. Styrofoam captures are much less. Totals are much lower and in adjacent bowls capture in styrofoam is always lower.

Not sure why, both are bright white....possibly bees can climb out of Styrofoam more easily, but no sign of soggy bees on or near the cups.

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With Natural History there is no need to go to the moon or Madagascar; there is more to find in your woodlot than in our entire solar system.