Modelling non-attentional visual information transmission in groups under predation

J. Fransje van Weerden, Rineke Verbrugge and Charlotte K. Hemelrijk

Ecological Modelling, 2020, vol. 431, issue C

Abstract: Group living is of benefit to foraging individuals by improving their survival, through passive risk dilution by sheer numbers and through increasingly more active processes, ranging from cue transmission to alarm calling. Cue transmission of information within a group cannot easily be tracked in the field, but can be studied by modelling. An unintentional visual cue can be given by a fleeing action, and when it occurs in the visual field of an individual, can by contagion incite it to flee as well, making such a cue functional in anti-predator warning. The visual field is limited not only by morphology, causing a blind angle at the back, but also by behaviour. For instance, foraging with the head down can cause an extra “blind” angle in front for cues from other individuals, changing an unobstructed frontal visual field to a split lateral shape.

Keywords: Spatially explicit agent-based model; Visual fields; Vigilance; Indirect information reception; Non-attentional information reception; Sociality, Group living (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:431:y:2020:i:c:s0304380020301459

DOI: 10.1016/j.ecolmodel.2020.109073

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