Individual constancy of local search strategies in the giant tropical ant,Paraponera clavata (Hymenoptera: Formicidae) |
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Authors: | Michael D. Breed Christian Stierstorfer Ellen D. Furness Joseph M. Jeral Jennifer H. Fewell |
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Affiliation: | (1) Department of Environmental, Population, and Organismic Biology, University of Colorado, 80309-0334 Boulder, Colorado;(2) Department of Zoology, Arizona State University, 85287-1501 Tempe, Arizona |
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Abstract: | Paraponera clavata workers engage in a period of local search after encountering a small amount of artificial nectar. Giving-up times from local search are not distributed normally; there is a strong skew to longer times. There is no statistically significant relationship between the amount of time required to collect the food and the subsequent search time. Giving-up time in response to the first reward presented to an ant is positively correlated with that ant's response to a second such reward. However, giving-up times diminish when an ant is presented with a series of rewards. Local search is a function of individual strategies, which remain relatively constant in the short term. |
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Keywords: | foraging search strategy giving-up time Ponerinae tropical |
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