Avoidance, confusion or solitude? Modelling how noise pollution affects whale migration DOI Creative Commons
Stuart T. Johnston, Kevin J. Painter

Movement Ecology, Journal Year: 2024, Volume and Issue: 12(1)

Published: Feb. 19, 2024

Abstract Many baleen whales are renowned for their acoustic communication. Under pristine conditions, this communication can plausibly occur across hundreds of kilometres. Frequent vocalisations may allow a dispersed migrating group to maintain contact, and therefore benefit from improved navigation via the “wisdom crowd”. Human activities have considerably inflated ocean noise levels. Here we develop data-driven mathematical model investigate how ambient levels inhibit whale migration. Mathematical models us simultaneously simulate collective migration behaviour, auditory cue detection, propagation. Rising hypothesised influence through three mechanisms: (i) diminished space; (ii) reduced ability hear external sound cues and; (iii) triggering avoidance behaviour. Comparing current soundscapes, observe impairment that ranges mild (increased journey time) extreme (failed navigation). Notably, mechanisms induce qualitatively different impacts on We demonstrate model’s potential predictive power, exploring extent which be altered under future shipping construction scenarios.

Language: Английский

Intent matters: how flow and forms of information impact collective navigation DOI Creative Commons
T. M. Hodgson, Stuart T. Johnston, Michela Ottobre

et al.

Journal of The Royal Society Interface, Journal Year: 2023, Volume and Issue: 20(207)

Published: Oct. 1, 2023

The phenomenon of collective navigation has received considerable interest in recent years. A common line thinking, backed by theoretical studies, is that can improve efficiency through the 'many-wrongs' principle, whereby individual error reduced comparing headings neighbours. When takes place a flowing environment, each individual's trajectory influenced drift. Consequently, potential discrepancy emerges between an intended heading and its actual heading. In this study, we develop model to explore whether benefits are altered according form information transmitted Navigation based on found confer robust advantages across wide spectrum flows, via both marked improvement migration times capacity for group overcome flows unnavigable solitary individuals. far less effective, only offering under highly favourable currents. For many currents, sharing even lead journey exceed those navigators.

Language: Английский

Citations

2
Avoidance, confusion or solitude? Modelling how noise pollution affects whale migration DOI Creative Commons
Stuart T. Johnston, Kevin J. Painter

Movement Ecology, Journal Year: 2024, Volume and Issue: 12(1)

Published: Feb. 19, 2024

Abstract Many baleen whales are renowned for their acoustic communication. Under pristine conditions, this communication can plausibly occur across hundreds of kilometres. Frequent vocalisations may allow a dispersed migrating group to maintain contact, and therefore benefit from improved navigation via the “wisdom crowd”. Human activities have considerably inflated ocean noise levels. Here we develop data-driven mathematical model investigate how ambient levels inhibit whale migration. Mathematical models us simultaneously simulate collective migration behaviour, auditory cue detection, propagation. Rising hypothesised influence through three mechanisms: (i) diminished space; (ii) reduced ability hear external sound cues and; (iii) triggering avoidance behaviour. Comparing current soundscapes, observe impairment that ranges mild (increased journey time) extreme (failed navigation). Notably, mechanisms induce qualitatively different impacts on We demonstrate model’s potential predictive power, exploring extent which be altered under future shipping construction scenarios.

Language: Английский

Citations

0