Woncheol Song

Woncheol Song
Seoul National University | SNU · Department of Biological Sciences

Doctor of Philosophy

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5
Publications
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Publications

Publications (5)
Preprint
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Accurate measurements of travel distance and speed are crucial for the analysis of animal movements. Measuring the movements of ants entails measuring the change in locations registered at time intervals. This process involves the dilemma of setting the proper time window: a short time window is vulnerable to spatial errors in observation, while a...
Article
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Analogies across disciplines often indicate the existence of universal principles such as optimization, while the underlying proximate mechanisms may differ. It was reported recently that trails of ants refract at the border of substrates, on which walking speeds differ. This phenomenon is analogous to the travel-time-minimizing routes of light ref...
Article
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Some defended prey animals can switch on their normally hidden aposematic signals. This switching may occur in reaction to predators’ approach (pre-attack signals) or attack (post-attack signals). Switchable aposematism has been relatively poorly studied, but we can expect that it might bring a variety of benefits to an aposmetic organism. First, t...
Article
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Ants are known for their collective intelligence and efficient division of labor. Therefore, observations that seem to contradict these stereotypes are worth reporting. While observing a colony of Camponotus japonicus, we discovered that workers frequently dumped protein-rich food items at a particular spot, while other workers collected the dumped...
Article
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A typical colony of Neotropical army ants (subfamily Ecitoninae) regularly raids a large area around their bivouac by forming a narrow directional column that can reach up to one hundred meters in length. The raid is finished and then relaunched 12–17 times, each time toward different orientation. After completing all bouts the colony relocates to...