1. Rapid evolution of coordinated and collective movement in response to artificial selection
- Author
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Audrey Le Foll, Alexander Kotrschal, James E. Herbert-Read, Kristiaan Pelckmans, Judith E. Mank, Maksym Romenskyy, Niclas Kolm, David J. T. Sumpter, Natasha I. Bloch, Ada Fontrodona Eslava, Séverine D. Buechel, Laura Sánchez Alòs, A. Szorkovszky, Hong-Li Zeng, Ganaël Braux, University of St Andrews. Centre for Biological Diversity, University of St Andrews. School of Biology, Kotrschal, Alexander [0000-0003-3473-1402], Szorkovszky, Alexander [0000-0001-9331-3214], Herbert-Read, James [0000-0003-0243-4518], Bloch, Natasha I [0000-0002-4769-1027], Romenskyy, Maksym [0000-0003-2565-4994], Eslava, Ada Fontrodona [0000-0001-7275-7174], Zeng, Hongli [0000-0003-1764-4657], Braux, Ganaël [0000-0001-5485-1378], Pelckmans, Kristiaan [0000-0002-8486-0897], Kolm, Niclas [0000-0001-5791-336X], and Apollo - University of Cambridge Repository
- Subjects
Collective behavior ,Computer science ,QH301 Biology ,Zoologi ,Evolutionsbiologi ,Behavioral Ecology ,QH301 ,Group cohesiveness ,Life Science ,Research Articles ,Selection (genetic algorithm) ,Evolutionary Biology ,Movement (music) ,fungi ,Polarization (politics) ,food and beverages ,SciAdv r-articles ,DAS ,Attraction ,Social relation ,Gedragsecologie ,3109 Zoology ,WIAS ,Three generations ,Zoology ,Research Article ,31 Biological Sciences ,Cognitive psychology - Abstract
The rules of interaction that animals use to coordinate their movements are heritable and can evolve rapidly., Collective motion occurs when individuals use social interaction rules to respond to the movements and positions of their neighbors. How readily these social decisions are shaped by selection remains unknown. Through artificial selection on fish (guppies, Poecilia reticulata) for increased group polarization, we demonstrate rapid evolution in how individuals use social interaction rules. Within only three generations, groups of polarization-selected females showed a 15% increase in polarization, coupled with increased cohesiveness, compared to fish from control lines. Although lines did not differ in their physical swimming ability or exploratory behavior, polarization-selected fish adopted faster speeds, particularly in social contexts, and showed stronger alignment and attraction responses to multiple neighbors. Our results reveal the social interaction rules that change when collective behavior evolves.
- Published
- 2020