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Characteristics of daily foraging activity of Camponotus japonicus via time series analysis
Social insects often share tasks among individuals. In this study, we analyzed the foraging activity of ants (Camponotus japonicus) and recorded the daily passage event counts of individual workers between a nest chamber and a foraging arena in five monodomous colonies. We proposed two hypotheses on...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10653500/ https://www.ncbi.nlm.nih.gov/pubmed/37971994 http://dx.doi.org/10.1371/journal.pone.0293455 |
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author | Goko, Hiromichi Yamanaka, Osamu Shiraishi, Masashi Nishimori, Hiraku |
author_facet | Goko, Hiromichi Yamanaka, Osamu Shiraishi, Masashi Nishimori, Hiraku |
author_sort | Goko, Hiromichi |
collection | PubMed |
description | Social insects often share tasks among individuals. In this study, we analyzed the foraging activity of ants (Camponotus japonicus) and recorded the daily passage event counts of individual workers between a nest chamber and a foraging arena in five monodomous colonies. We proposed two hypotheses on the time series of foraging frequency by individual worker ants as follows: (i) for the time series of foraging frequency by individual worker ants, the foraging frequency on a certain day could be expressed by the product of the foraging frequency on the previous day and the exponential of a random number. (ii) The random numbers are correlated between some pairs of worker ants. The results for the five tested ant colonies showed that the probability of total daily passage counts (the sum of an individual’s passage count) followed a log-normal distribution. The worker ants behaved differently in terms of active days and foraging frequency. However, for > 54% of the worker ants, the probability of the daily passage count was characterized by a log-normal distribution, and these worker ants performed > 72% of the tasks in each colony. Furthermore, for > 73% of the worker ants, the time development of the passage count was mathematically modeled; the logarithmic first difference between the passage counts on a certain day and those on the previous day was a random normal variable. These results support hypothesis (i). Additionally, the random numbers that were equivalent to the logarithmic first difference were correlated for some pairs of worker ants. These results support hypothesis (ii). |
format | Online Article Text |
id | pubmed-10653500 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-106535002023-11-16 Characteristics of daily foraging activity of Camponotus japonicus via time series analysis Goko, Hiromichi Yamanaka, Osamu Shiraishi, Masashi Nishimori, Hiraku PLoS One Research Article Social insects often share tasks among individuals. In this study, we analyzed the foraging activity of ants (Camponotus japonicus) and recorded the daily passage event counts of individual workers between a nest chamber and a foraging arena in five monodomous colonies. We proposed two hypotheses on the time series of foraging frequency by individual worker ants as follows: (i) for the time series of foraging frequency by individual worker ants, the foraging frequency on a certain day could be expressed by the product of the foraging frequency on the previous day and the exponential of a random number. (ii) The random numbers are correlated between some pairs of worker ants. The results for the five tested ant colonies showed that the probability of total daily passage counts (the sum of an individual’s passage count) followed a log-normal distribution. The worker ants behaved differently in terms of active days and foraging frequency. However, for > 54% of the worker ants, the probability of the daily passage count was characterized by a log-normal distribution, and these worker ants performed > 72% of the tasks in each colony. Furthermore, for > 73% of the worker ants, the time development of the passage count was mathematically modeled; the logarithmic first difference between the passage counts on a certain day and those on the previous day was a random normal variable. These results support hypothesis (i). Additionally, the random numbers that were equivalent to the logarithmic first difference were correlated for some pairs of worker ants. These results support hypothesis (ii). Public Library of Science 2023-11-16 /pmc/articles/PMC10653500/ /pubmed/37971994 http://dx.doi.org/10.1371/journal.pone.0293455 Text en © 2023 Goko et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Goko, Hiromichi Yamanaka, Osamu Shiraishi, Masashi Nishimori, Hiraku Characteristics of daily foraging activity of Camponotus japonicus via time series analysis |
title | Characteristics of daily foraging activity of Camponotus japonicus via time series analysis |
title_full | Characteristics of daily foraging activity of Camponotus japonicus via time series analysis |
title_fullStr | Characteristics of daily foraging activity of Camponotus japonicus via time series analysis |
title_full_unstemmed | Characteristics of daily foraging activity of Camponotus japonicus via time series analysis |
title_short | Characteristics of daily foraging activity of Camponotus japonicus via time series analysis |
title_sort | characteristics of daily foraging activity of camponotus japonicus via time series analysis |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10653500/ https://www.ncbi.nlm.nih.gov/pubmed/37971994 http://dx.doi.org/10.1371/journal.pone.0293455 |
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