Modulation of trail laying in the ant Lasius niger (Hymenoptera: Formicidae) and its role in the collective selection of a food source
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...Thus, when trail following ants make the choice between two bridges they detect a higher concentration of pheromone on one of the bridges, the shorter one (Beckers et al. 1993)....
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...complicate than those solved by real ants, we gave artificial ants some extra capacities, like a memory (used to implement constraints and t o allow the ants to retrace their path back to the nest without errors) and the ca pacity of depositing a quantity of pheromone proportional to the quality of the so luti n produced (a similar behavior is observed also in some real ants species i n which the quantity of pheromone deposited while returning to the nest from a food s urce is proportional to the quality of the food source found [3])....
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References
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"Modulation of trail laying in the a..." refers methods in this paper
...This function was used previously to quantify path choice in the ant Iridomyrmex humilis, and an experimental fitting gave n = 2 and k = 20 (Deneubourg et al., 1990)....
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"Modulation of trail laying in the a..." refers background in this paper
...…context and in relation to the richness of the food source, the foragers modulate the strength of their waggle dancing, the tempo of their visits to the food source, their likelihood of returning there (Seeley et al., 1991; Camazine and Sneyd, 1991), and the receptivity of the workers in the nest....
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...In a recruitment context and in relation to the richness of the food source, the foragers modulate the strength of their waggle dancing, the tempo of their visits to the food source, their likelihood of returning there (Seeley et al., 1991; Camazine and Sneyd, 1991), and the receptivity of the workers in the nest....
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"Modulation of trail laying in the a..." refers background or methods or result in this paper
...The results were less consistent for those ants going to the source, as many were making their first trip and thus did not lay trail pheromone (Beckers et al., 1992a)....
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...An equivalent process can be seen in the collective selection of the shorter of two paths, in which L. niger foragers modulate their behavior as a function of their deviation from the nest-food axis (Beckers et al., 1992b)....
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...MODEL OF TRAIL LAYING AND CHOICE OF SOURCE We use a model that reproduces the recruitment dynamics of L. niger, incorporating data from Beckers et al. (1992a) and from the experiments described above, to test how far the individual trail-laying and trail-following behavior can generate the overall…...
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...If they did not start to lay trail on the first trip or subsequently stopped laying trail, then the probabilities that they start to lay trail (for the first time or again) are 0.1 and 0.05, respectively (Beckers et al., 1992a)....
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...In detail, for a 1 M sugar source, the probabilities that a scout or a recruit start to lay trail for the first time, and also continue to lay trail on each subsequent trip, are 0.5 and 0.25, respectively, as measured by Beckers et al. (1992a)....
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"Modulation of trail laying in the a..." refers background in this paper
...taneously, the greater the proportion of trials in which the majority of the foragers exploited the 1 M source (confirming earlier results of Pasteels et al., 1987; Beckers et al., 1990)....
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...In two earlier articles, we made a number of hypotheses to explain how colonies of trail-laying species, such as Tetramorium caespitum and Lasius niger (Pasteels et al., 1987; Beckers et al., 1990), select the richer of two sugar sources....
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...…between the two sources introduced aA source was considered chosen if more than 60% of the ants went there. taneously, the greater the proportion of trials in which the majority of the foragers exploited the 1 M source (confirming earlier results of Pasteels et al., 1987; Beckers et al., 1990)....
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