ArticlePLoS computational biology2015
Lévy Walks Suboptimal under Predation Risk.
Article in PLoS computational biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Sediment availability provokes a shift from Brownian to Lévy-like clonal expansion in a dune building grass.Ecology letters · 2021Article
- Functional advantages of Lévy walks emerging near a critical point.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Adaptive switch to sexually dimorphic movements by partner-seeking termites.Science advances · 2019Article
- Lévy like patterns in the small-scale movements of marsupials in an unfamiliar and risky environment.Scientific reports · 2019Article
- Lévy-like movement patterns of metastatic cancer cells revealed in microfabricated systems and implicated in vivo.Nature communications · 2018Article
- The optimal movement patterns for mating encounters with sexually asymmetric detection ranges.Scientific reports · 2018Article
- The evolutionary origins of Lévy walk foraging.PLoS computational biology · 2017Article
- Optimizing mating encounters by sexually dimorphic movements.Journal of the Royal Society, Interface · 2017Article
- Online games: a novel approach to explore how partial information influences human random searches.Scientific reports · 2017Article
- Virtual prey with Lévy motion are preferentially attacked by predatory fish.Behavioral ecology : official journal of the International Society for Behavioral EcologyArticle
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A key challenge in movement ecology is to understand how animals move in nature. Previous studies have predicted that animals should perform a special class of random walks, called Lévy walk, to obtain more targets. However, some empirical studies did not support this hypothesis, and the relationship between search strategy and ecological factors is still unclear. We focused on ecological factors, such as predation risk, and analyzed whether Lévy walk may not be favored. It was remarkable that the ecological factors often altered an optimal search strategy from Lévy walk to Brownian walk, depending on the speed of the predator's movement, density of predators, etc. This occurred because higher target encounter rates simultaneously led searchers to higher predation risks. Our findings indicate that animals may not perform Lévy walks often, and we suggest that it is crucial to consider the ecological context for evaluating the search strategy performed by animals in the field.
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