Familiarity affects collective motion in shoals of guppies (Poecilia reticulata). Issue 9 (20th September 2017)

• Record Type: Journal Article
• Authors: Davis, Scarlet; Lukeman, Ryan; Schaerf, Timothy M.; Ward, Ashley J. W.
• Is Part Of: Royal Society open science. Volume 4:Issue 9(2017)
• Publication Date: 2017-09-20
• Subjects: shoaling -- schooling -- collective behaviour -- alignment; Science -- Periodicals; 500
• DOI: 10.1098/rsos.170312
• Languages: English
• ISSNs: 2054-5703

Abstract

Abstract : The coordinated and synchronized movement of animals in groups often referred to as collective motion emerges through the interactions between individual animals within the group. Factors which affect these interactions have the potential to shape collective movement. One such factor is familiarity, or the tendency to bias behaviour towards individuals as a result of social recognition. We examined the effect of familiarity on the expression of collective motion in small shoals of female guppies ( Poecilia reticulata ). Groups comprising familiar individuals were more strongly polarized than groups of unfamiliar individuals, particularly when in novel surroundings. The ability to form more strongly polarized shoals potentially promotes information transfer and enhances the anti-predator benefits of grouping.