RT Journal Article
SR Electronic
T1 Rapid evolution of coordinated and collective movement in response to artificial selection
JF Science Advances
JO Sci Adv
FD American Association for the Advancement of Science
SP eaba3148
DO 10.1126/sciadv.aba3148
VO 6
IS 49
A1 Kotrschal, Alexander
A1 Szorkovszky, Alexander
A1 Herbert-Read, James
A1 Bloch, Natasha I.
A1 Romenskyy, Maksym
A1 Buechel, Séverine Denise
A1 Eslava, Ada Fontrodona
A1 Alòs, Laura Sánchez
A1 Zeng, Hongli
A1 Le Foll, Audrey
A1 Braux, Ganaël
A1 Pelckmans, Kristiaan
A1 Mank, Judith E.
A1 Sumpter, David
A1 Kolm, Niclas
YR 2020
UL http://advances.sciencemag.org/content/6/49/eaba3148.abstract
AB 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.