Behavioral property of unusual large workers in the ant,<Emphasis Type="Italic"> Pristomyrmex pungens</Emphasis> |
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Authors: | Email author" target="_blank">Tomonori?SasakiEmail author Kazuki?Tsuji |
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Institution: | (1) Department of Biology, Faculty of Science, Toyama University, Toyama 930-8555, Japan,;(2) Entomological Laboratory, Faculty of Agriculture, University of the Ryukyus, Okinawa, Japan, |
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Abstract: | We surveyed the behavioral properties of unusual large workers in the parthenogenetic queenless ant, Pristomyrmex pungens. The majority of colonies mostly consist of monomorphic workers, which have two ovarioles (small workers). Large workers
with four ovarioles are occasionally found in some colonies. We compared the behavior of small and large workers. Large workers
performed brood care less frequently than small workers and almost never foraged. We set out three hypotheses of the adaptive
significance of large workers: they are (1) reproductive castes, that is, functionally defined queens, (2) major workers,
such as soldiers, and (3) of a socially parasitic lineage.
Electronic Publication |
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Keywords: | Ant Parthenogenesis Worker dimorphism Division of labor |
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