<p>(a) The decrease in food-discovery time between the first tests on two successive days; (b) the positive correlation between colony size and the number of workers searching (mean values for the first tests on the two successive days are presented). The asterisk indicates a significant difference.</p

Adar Rosenfeld (4390051)

Aziz Subach (792890)

Inon Scharf (176159)

Maya Saar (4390045)

Tal Kilon-Kallner (4390048)

Tomer Gilad (4390054)

English

<p>(a) The interaction between colony size and maze complexity in their effect on food-discovery time on the first test; (b) the decrease in food-discovery time with successive tests performed on the same day. Letters denote significant differences according to a post-hoc comparison.</p

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The interplay between maze complexity, colony size, learning and memory in ants while solving a maze: A test at the colony level - Fig 2

Saha, N K

Kaila, K L

IACS Institutional Repository

Determination of the Beta Ray Energy Spectrum from the Absorption Curves of Beta Rays

Central-place foragers need to explore their immediate habitat in order to reach food. We let colonies of the individually foraging desert ant Cataglyphis niger search for a food reward in a maze. We did so for three tests per day over two successive days and an additional test after a time interval of 4-20 days (seven tests in total). We examined whether the colonies reached the food reward faster, consumed more food and changed the number of workers searching over time, within and between days. Colonies' food-discovery time shortened within and between days, indicating that some workers learnt and became more efficient in moving through the maze. Such workers, however, also forgot and deteriorated in their food-discovery time, leveling off back to initial performance after about two weeks. We used mazes of increasing complexity levels, differing in the potential number of wrong turns. The number of workers searching increased with colony size. Food-discovery time also increased with colony size in complex mazes but not in simple ones, perhaps due to the more frequent interactions among workers in large colonies having to move through narrow routes. Finally, the motivation to solve the maze was probably not only the food reward, because food consumption did not change over time

Maya Saar

Tomer Gilad

Tal Kilon-Kallner

Adar Rosenfeld

Aziz Subach

Inon Scharf

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The interplay between maze complexity, colony size, learning and memory in ants while solving a maze: A test at the colony level.

The interplay between maze complexity, colony size, learning and memory in ants while solving a maze: A test at the colony level - Fig 3

http://arxiv.iacs.res.in:8080/jspui/bitstream/10821/2125/1/Determination%20of%20the%20beta_N%20K%20Saha.pdf

Determination of the Beta Ray Energy Spectrum from the Absorption Curves of Beta Rays

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