Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/131606
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Title

Optimal intermittence in search strategies under speed-selective target detection

AuthorsCampos, Daniel; Méndez, Vicenç; Bartumeus, Frederic CSIC ORCID
Issue Date2012
PublisherAmerican Physical Society
CitationPhysical Review Letters 108 : 028102 (2012)
AbstractRandom search theory has been previously explored for both continuous and intermittent scanning modes with full target detection capacity. Here we present a new class of random search problems in which a single searcher performs flights of random velocities, the detection probability when it passes over a target location being conditioned to the searcher speed. As a result, target detection involves an N-passage process for which the mean search time is here analytically obtained through a renewal approximation. We apply the idea of speed-selective detection to random animal foraging since a fast movement is known to significantly degrade perception abilities in many animals. We show that speed-selective detection naturally introduces an optimal level of behavioral intermittence in order to solve the compromise between fast relocations and target detection capability.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.108.028102
URIhttp://hdl.handle.net/10261/131606
DOI10.1103/PhysRevLett.108.028102
ISSN0031-9007
E-ISSN1079-7114
Appears in Collections:(CEAB) Artículos

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