Lecture 14

Question 1

Foraging using a variety of sensory modalities

Answer 1

Visual cues, chemical cues, search images.

Question 2

Search Image

Answer 2

Distinctive visual features of an object, like a single prey type; facilitates ability to find cryptic prey

Question 3

Kulahci, Dornhaus, & Papaj (2008): Is bumblebee foraging more efficient when multiple senses are used?

Answer 3

Trained the individual bees to forage on artificial flowers that varied in shape and odor. The flowers could provide single or multiple cues that bees learned to associate with rewards. (Shape, Scent, Shape and Scent)
The bees trained to use both visual and odor cues had the highest feeding performance.
Evidence supports Multiple sensory cues facilitates efficient feeding

Question 4

Pietrewicz & Kamil (1977) and Pietrewicz & Kamil (1979): Blue jays using search image to find cryptic moths

Answer 4

Trained Blue Jays to search for images of moths on a computer screen. 10 positive, 1 for negative
One species was on birch, another on oak, and the birds were exposed to the same image repeatedly. When the two moths were interspersed and presented randomly, the jays could not create a search image