BIO 360 Data from bee interviews Fall 1997-1999
Data collected in BIO 352, 5 September, 1997 and 3-4 September, 1998; in BIO/MAR 360, 14 and 18 September 1999. In the 1997-8 data sets, "approaches" were recorded if the bee hovered near a choice without touching it, but in 1999 they were not. Therefore, the 1999 data are kept separate from the older numbers. However, if the "visits" and "rejects" are summed for the 1999, these numbers could be legitimately added to the "landing visits" from previous years. (Data rows are labeled by year; in addition, 1999 data should appear in red on the screen or in a color printout.)
Part 1. Pairwise choices of knapweed (Centaurea maculosa) heads offered to free foraging honey bees (Apis) and bumble bees (mostly Bombus impatiens, B. affinis).
Experiment 1, "advertising". Heads of similar size, one trimmed of its ray flowers (NR), one intact (R).
|
Landing visits: |
R only |
NR only |
R then NR |
NR then R |
|
Apis visits 99 |
52 |
25 |
4 |
0 |
|
Bombus visits 99 |
19 |
17 |
1 |
0 |
|
Apis rejects 99 |
2 |
2 |
0 |
0 |
|
Bombus rejects 99 |
2 |
2 |
0 |
0 |
|
Apis visits + rejects 97-98 |
99 |
44 |
6 |
7 |
|
Bombus visits + rejects 97-98 |
62 |
39 |
16 |
10 |
|
Approaches (97-98 data only): |
Accept R |
Reject R |
Accept NR |
Reject NR |
|
Apis |
103 |
27 |
50 |
17 |
|
Bombus |
50 |
15 |
21 |
23 |
Experiment 2, "reward".
Similar sizes heads, one recently drained (Drain), one screened from visits for 24 hours and presumably enriched relative to flowers in surrounding patch (Enrich).|
Landing visits: |
Enrich only |
Drain only |
Enrich to Drain |
Drain to Enrich |
|
|
Apis visits 99 |
26 |
18 |
8 |
0 |
|
|
Bombus visits 99 |
23 |
13 |
2 |
2 |
|
|
Apis rejects 99 |
1 |
6 |
1 |
1 |
|
|
Bombus rejects 99 |
2 |
3 |
0 |
0 |
|
|
Apis visits + rejects 97-98 |
56 |
29 |
40 |
15 |
|
|
Bombus visits + rejects 97-98 |
67 |
42 |
41 |
18 |
|
|
Approaches (97-98 data only): |
Enrich accept |
Enrich reject |
Drain accept |
Drain reject |
|
|
Apis |
84 |
8 |
57 |
24 |
|
|
Bombus |
106 |
5 |
63 |
19 |
|
Experiment 3, "pheromone".
Two similar heads, one daubed with BeeScent™ (Scentry, Inc., P.O. Box 426, Buckeye, AZ, 85326, (602) 386-6737) diluted 1:10 in tap water (P), other an unmarked control or "no pheromone" (NP).|
Landing visits: |
P only |
NP only |
P then NP |
NP then P |
|
Apis visits 99 |
2 |
46 |
0 |
0 |
|
Bombus visits 99 |
4 |
12 |
0 |
0 |
|
Apis rejects 99 |
34 |
2 |
0 |
4 |
|
Bombus rejects 99 |
7 |
1 |
0 |
1 |
|
Apis visits + rejects 97-98 |
32 |
83 |
8 |
4 |
|
Bombus visits + rejects 97-98 |
25 |
72 |
5 |
14 |
|
Approaches (97-98 data only): |
Accept P |
Reject P |
Accept NP |
Reject NP |
|
Apis |
28 |
81 |
86 |
27 |
|
Bombus |
3 |
68 |
78 |
25 |
Part 2. Constancy trials at Weld Preserve, 18 September 1999 only.
a. Solidago rugosa vs. Solidago canadensis - Apis
|
Feeding visits |
Rejections |
|||
|
From: |
To: |
To: |
||
|
rugosa |
canadensis |
rugosa |
canadensis |
|
|
rugosa |
52 |
35 |
5 |
8 |
|
canadensis |
38 |
54 |
11 |
4 |
b. Solidago graminifolia vs. Solidago canadensis- Apis
|
Feeding visits |
Rejections |
|||
|
From: |
To: |
To: |
||
|
graminifolia |
canadensis |
graminifolia |
canadensis |
|
|
graminifolia |
9 |
2 |
0 |
1 |
|
canadensis |
2 |
3 |
0 |
2 |
a. Solidago rugosa vs. Solidago canadensis - Bombus
|
Feeding visits |
Rejections |
|||
|
From: |
To: |
To: |
||
|
rugosa |
canadensis |
rugosa |
canadensis |
|
|
rugosa |
31 |
23 |
4 |
3 |
|
canadensis |
40 |
57 |
10 |
6 |
b. Solidago graminifolia vs. Solidago canadensis- Bombus
|
Feeding visits |
Rejections |
|||
|
From: |
To: |
To: |
||
|
graminifolia |
canadensis |
graminifolia |
canadensis |
|
|
graminifolia |
1 |
0 |
0 |
0 |
|
canadensis |
3 |
2 |
0 |
0 |