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Accession number;01A0340294
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| Title;Emergence of a mdeium of exchange in shell transfer by the hermit crab. |
| Author;
SHINOHARA SHUJI
(Koritsuhakodatemiraidai Shisutemujohokagaku)
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Journal Title;IEIC Technical Report (Institute of Electronics, Information and Communication Engineers)
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Journal Code:S0532B
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ISSN:0913-5685
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VOL.100;NO.530(AI2000 56-65);PAGE.31-36(2001)
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| Figure&Table&Reference;FIG.7, REF.6 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;In this paper we discuss the possibility if a medium of exchange emerges during shell exchange in the hermit crab. Hermit crabs live in shell in order to defend from predators, and seldom leave their inhabited shell under the natural condition. We constructed the experimental system as follows; hermit crab could not get to eat bait unless they left its own shell. In order to fulfill this condition, the inhabited shell was fixed on the ground apart from bait. We also laid down another shell (called M), which was vacant and mobile but unfit the body, beside the fixed shell. As a consequence, population using M for traveling back and forth between its own fixed shell and bait was observed as well as one living in the nude and another one transferring to M. Through evaluating the result, one can regard the use of M as germ of a medium of exchange. (author abst.) |
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