Experimental evidence for inherent Lévy search behaviour in foraging animals

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KÖLZSCH, Andrea, Adriana ALZATE, Frederic BARTUMEUS, Monique DE JAGER, Ellen J. WEERMAN, Geerten M. HENGEVELD, Marc NAGUIB, Bart A. NOLET, Johan VAN DE KOPPEL, 2015. Experimental evidence for inherent Lévy search behaviour in foraging animals. In: Proceedings of the Royal Society of London, Series B : Biological Sciences. 282(1807), 20150424. ISSN 0962-8452

@article{Kolzsch2015Exper-31513, title={Experimental evidence for inherent Lévy search behaviour in foraging animals}, year={2015}, doi={10.1098/rspb.2015.0424}, number={1807}, volume={282}, issn={0962-8452}, journal={Proceedings of the Royal Society of London, Series B : Biological Sciences}, author={Kölzsch, Andrea and Alzate, Adriana and Bartumeus, Frederic and de Jager, Monique and Weerman, Ellen J. and Hengeveld, Geerten M. and Naguib, Marc and Nolet, Bart A. and van de Koppel, Johan}, note={Article Number: 20150424} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/31513"> <dc:creator>Nolet, Bart A.</dc:creator> <dc:contributor>Alzate, Adriana</dc:contributor> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/31513"/> <dc:contributor>van de Koppel, Johan</dc:contributor> <dcterms:abstract xml:lang="eng">Recently, Lévy walks have been put forward as a new paradigm for animal search and many cases have been made for its presence in nature. However, it remains debated whether Lévy walks are an inherent behavioural strategy or emerge from the animal reacting to its habitat. Here, we demonstrate signatures of Lévy behaviour in the search movement of mud snails (Hydrobia ulvae) based on a novel, direct assessment of movement properties in an experimental set-up using different food distributions. Our experimental data uncovered clusters of small movement steps alternating with long moves independent of food encounter and landscape complexity. Moreover, size distributions of these clusters followed truncated power laws. These two findings are characteristic signatures of mechanisms underlying inherent Lévy-like movement. Thus, our study provides clear experimental evidence that such multi-scale movement is an inherent behaviour rather than resulting from the animal interacting with its environment.</dcterms:abstract> <dc:contributor>Kölzsch, Andrea</dc:contributor> <dc:creator>Naguib, Marc</dc:creator> <dc:contributor>de Jager, Monique</dc:contributor> <dc:creator>de Jager, Monique</dc:creator> <dc:creator>Kölzsch, Andrea</dc:creator> <dc:contributor>Weerman, Ellen J.</dc:contributor> <dc:contributor>Bartumeus, Frederic</dc:contributor> <dc:creator>Weerman, Ellen J.</dc:creator> <dc:contributor>Hengeveld, Geerten M.</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-07-29T04:53:54Z</dcterms:available> <dc:contributor>Nolet, Bart A.</dc:contributor> <dc:creator>van de Koppel, Johan</dc:creator> <dc:creator>Alzate, Adriana</dc:creator> <dc:contributor>Naguib, Marc</dc:contributor> <dc:creator>Hengeveld, Geerten M.</dc:creator> <dcterms:issued>2015</dcterms:issued> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2015-07-29T04:53:54Z</dc:date> <dc:creator>Bartumeus, Frederic</dc:creator> <dcterms:title>Experimental evidence for inherent Lévy search behaviour in foraging animals</dcterms:title> <dc:language>eng</dc:language> </rdf:Description> </rdf:RDF>

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