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Title: The effects of external cues on individual and collective behavior of shoaling fish
Contributor(s): Schaerf, Timothy  (author)orcid ; Dillingham, Peter  (author); Ward, Ashley J W (author)
Publication Date: 2017
Open Access: Yes
DOI: 10.1126/sciadv.1603201Open Access Link
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Abstract: Collective animal behavior is an emergent phenomenon arising from the local interactions of the members of animal groups. Considerable progress has been made in characterizing these interactions, particularly inferring rules that shape and guide the responses of animals to their near neighbors. To date, experimental work has focused on collective behavior within a single, stable context. We examine the individual and collective behavior of a schooling fish species, the x-ray tetra (Pristella maxillaris), identifying their response to changes in context produced by food cues or conspecific alarm cues. Fish exposed to alarm cues show pronounced, broad-ranging changes of behavior, including reducing speed and predictability in their movements. Alarmed fish also alter their responses to other group members, including enacting a smaller zone of repulsion and increasing their frequency of observation of, and responsiveness to, near neighbors. Fish subject to food cues increased speed as a function of neighbor positions and reduced encounter frequency with near neighbors. Overall, changes in individual behavior and the interactions among individuals in response to external cues coincide with changes in group-level patterns, providing insight into the adaptability of behavior to changes in context and interrelationship between local interactions and global patterns in collective behavior.
Publication Type: Journal Article
Source of Publication: Science Advances, 3(6), p. 1-15
Publisher: American Association for the Advancement of Science (AAAS)
Place of Publication: United States of America
ISSN: 2375-2548
Fields of Research (FoR) 2008: 010202 Biological Mathematics
010401 Applied Statistics
060801 Animal Behaviour
Fields of Research (FoR) 2020: 310901 Animal behaviour
490102 Biological mathematics
490501 Applied statistics
Socio-Economic Objective (SEO) 2008: 970106 Expanding Knowledge in the Biological Sciences
970101 Expanding Knowledge in the Mathematical Sciences
Socio-Economic Objective (SEO) 2020: 280118 Expanding knowledge in the mathematical sciences
280102 Expanding knowledge in the biological sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Science and Technology

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