Quantitative cognition in carpenter ants
نویسندگان
چکیده
Processing information about quantities allows animals to make optimal decisions during many natural contexts, such as foraging, territorial defense, offspring care, mate choice, and intra-sexual competition. Compared the wealth of available in vertebrates, much less is known invertebrates, even though processing equally relevant for both taxa. Here, we used two separate ecologically tasks (brood pile preference landmark-guided foraging) investigate dimensions quantitative cognition carpenter ants: spontaneous judgments trained use sequential landmarks. Individual ants spontaneously discriminated between piles dummy cocoons when choice involved smaller (1 vs. 2, 3, 4) larger numerical contrasts (2 4, 6, 8). Ants chemical visual/tactile cues their performance was dependent on ratio. In second task, preferentially searched near landmark (out five identical ones) despite alterations its position, suggesting that they ordinal location searching food. this experiment, showed a limit at four since drastically decreased were 5th landmark. We relative quantity position efficient decisions. Our study contributes scant body knowledge invertebrate species. There ample experimental evidence non-human are able process information, particular mammals, some birds, fish, ability useful variety situations. Yet, invertebrates very scarce. show individual items. Nurse brood different sizes foragers learn identify associated with food basis series ones. These results suggest might choices environment although precise mechanisms underlying should be further investigated.
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ژورنال
عنوان ژورنال: Behavioral Ecology and Sociobiology
سال: 2021
ISSN: ['1432-0762', '0340-5443']
DOI: https://doi.org/10.1007/s00265-021-03020-5