Distinct decision-making properties underlying the species specificity of group formation of flies
Creators
- 1. Nagoya University
- 2. University of the Ryukyus
- 3. University of Tokyo
Description
Many animal species form groups. Group characteristics differ between species, suggesting that the decision-making of individuals for grouping varies across species. However, the actual decision-making properties that lead to interspecific differences in group characteristics remain unclear. Here, we compared the group formation processes of two Drosophilinae fly species, Colocasiomyia alocasiae and Drosophila melanogaster, which form dense and sparse groups, respectively. A high-throughput tracking system revealed that C. alocasiae flies formed groups faster than D. melanogaster flies, and the probability of C. alocasiae remaining in groups was far higher than that of D. melanogaster. C. alocasiae flies joined groups even when the group size was small, whereas D. melanogaster flies joined groups only when the group size was sufficiently large. C. alocasiae flies attenuated their walking speed when the inter-individual distance between flies became small, whereas such behavioural properties were not clearly observed in D. melanogaster. Furthermore, depriving C. alocasiae flies of visual input affected grouping behaviours, resulting in a severe reduction in group formation. These findings show that C. alocasiae decision-making regarding grouping, which greatly depends on vision, is significantly different from D. melanogaster, leading to species-specific group-formation properties.
Notes
Funding provided by: Ministry of Education, Culture, Sports, Science and Technology; Japan Science and Technology Agency*
Crossref Funder Registry ID:
Award Number: JP20H03355
Funding provided by: Ministry of Education, Culture, Sports, Science and Technology; Japan Science and Technology Agency*
Crossref Funder Registry ID:
Award Number: JP18H02488
Funding provided by: Ministry of Education, Culture, Sports, Science and Technology; Japan Science and Technology Agency*
Crossref Funder Registry ID:
Award Number: JP20H04997
Funding provided by: Ministry of Education, Culture, Sports, Science and Technology; Japan Science and Technology Agency*
Crossref Funder Registry ID:
Award Number: JP19H04933
Funding provided by: Ministry of Education, Culture, Sports, Science and Technology; Japan Science and Technology Agency*
Crossref Funder Registry ID:
Award Number: JP20H04865
Funding provided by: Ministry of Education, Culture, Sports, Science and Technology; Japan Science and Technology Agency*
Crossref Funder Registry ID:
Award Number: JP21H05689
Funding provided by: Ministry of Education, Culture, Sports, Science and Technology; Japan Science and Technology Agency*
Crossref Funder Registry ID:
Award Number: JP19K22453
Funding provided by: Ministry of Education, Culture, Sports, Science and Technology; Japan Science and Technology Agency*
Crossref Funder Registry ID:
Award Number: JP19K16186
Funding provided by: Ministry of Education, Culture, Sports, Science and Technology; Japan Science and Technology Agency*
Crossref Funder Registry ID:
Award Number: JP21K15137
Funding provided by: Japan Science and Technology Agency
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100002241
Award Number: JPMJFR2147
Funding provided by: Japan Science and Technology Agency
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100002241
Award Number: JPMJPR21S2
Files
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Additional details
Related works
- Is derived from
- 10.5281/zenodo.6491269 (DOI)