Biology Reference
In-Depth Information
strongly correlated with the total water responses, demonstrating that
repeated stimulation with 50 percent sucrose increasingly sensitized
the bees. High-strain bees in general were more sensitive to the i rst
and subsequent stimulus trials (Figure 5.12).
h ese experiments clearly demonstrate that high- and low-strain
bees dif er in their responses to sucrose when they are newly emerged,
before social or foraging experiences. Responsiveness to sucrose cor-
relates with nonassociative learning, as it does with associative learn-
ing. h is shows that they share a common mechanism that involves
the subjective evaluation of stimuli. High- and low-strain bees are
dif erentially sensitized by single and multiple exposures to sensitizing
stimuli. h e rates of habituation, desensitization, or both (we probably
have elements of both in these assays) are related to sucrose sensitivity
and dif er between highs and lows.
10
High-Strain Bees
8
Low-Strain Bees
6
4
2
0
3
6
1
Number of Stimulations
Figure 5.12.
Median number of times 302 newly emerged worker honey bees of
the high and low strains responded to 10 presentations of water stimulus to the
antenna following 1, 3, and 6 successive presentations of 50 percent sucrose.
