Turn costs change the value of animal search paths

Autores
Wilson, R. P.; Griffiths, I. W.; Legg, P. A.; Friswell, M. I.; Bidder, O. R.; Halsey, L. G.; Lambertucci, Sergio Agustin; Shepard, E. L. C.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The tortuosity of the track taken by an animal searching for food profoundly affects search efficiency, which should be optimised to maximise net energy gain. Models examining this generally describe movement as a series of straight steps interspaced by turns, and implicitly assume no turn costs. We used both empirical- and modelling-based approaches to show that the energetic costs for turns in both terrestrial and aerial locomotion are substantial, which calls into question the value of conventional movement models such as correlated random walk or Levy walk for assessing optimum path types. We show how, because straight-line travel is energetically most efficient, search strategies should favour constrained turn angles, with uninformed foragers continuing in straight lines unless the potential benefits of turning offset the cost.
Fil: Wilson, R. P.. Swansea University; Reino Unido
Fil: Griffiths, I. W.. Swansea University; Reino Unido
Fil: Legg, P. A.. Swansea University; Reino Unido
Fil: Friswell, M. I.. Swansea University; Reino Unido
Fil: Bidder, O. R.. Swansea University; Reino Unido
Fil: Halsey, L. G.. University of Roehampton. School of Life Sciences; Reino Unido
Fil: Lambertucci, Sergio Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina
Fil: Shepard, E. L. C.. Swansea University; Reino Unido
Materia
Brownian Motion
Correlated Random Walk
Movement Costs
Lévy Walk
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/6704
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Turn costs change the value of animal search pathsWilson, R. P.Griffiths, I. W.Legg, P. A.Friswell, M. I.Bidder, O. R.Halsey, L. G.Lambertucci, Sergio AgustinShepard, E. L. C.Brownian MotionCorrelated Random WalkMovement CostsLévy Walkhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The tortuosity of the track taken by an animal searching for food profoundly affects search efficiency, which should be optimised to maximise net energy gain. Models examining this generally describe movement as a series of straight steps interspaced by turns, and implicitly assume no turn costs. We used both empirical- and modelling-based approaches to show that the energetic costs for turns in both terrestrial and aerial locomotion are substantial, which calls into question the value of conventional movement models such as correlated random walk or Levy walk for assessing optimum path types. We show how, because straight-line travel is energetically most efficient, search strategies should favour constrained turn angles, with uninformed foragers continuing in straight lines unless the potential benefits of turning offset the cost.Fil: Wilson, R. P.. Swansea University; Reino UnidoFil: Griffiths, I. W.. Swansea University; Reino UnidoFil: Legg, P. A.. Swansea University; Reino UnidoFil: Friswell, M. I.. Swansea University; Reino UnidoFil: Bidder, O. R.. Swansea University; Reino UnidoFil: Halsey, L. G.. University of Roehampton. School of Life Sciences; Reino UnidoFil: Lambertucci, Sergio Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; ArgentinaFil: Shepard, E. L. C.. Swansea University; Reino UnidoWiley2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6704Wilson, R. P.; Griffiths, I. W.; Legg, P. A.; Friswell, M. I.; Bidder, O. R.; et al.; Turn costs change the value of animal search paths; Wiley; Ecology Letters; 16; 9; 8-2013; 1145-11501461-023Xenginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ele.12149/abstractinfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1111/ele.12149info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:15:48Zoai:ri.conicet.gov.ar:11336/6704instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:15:48.336CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Turn costs change the value of animal search paths
title Turn costs change the value of animal search paths
spellingShingle Turn costs change the value of animal search paths
Wilson, R. P.
Brownian Motion
Correlated Random Walk
Movement Costs
Lévy Walk
title_short Turn costs change the value of animal search paths
title_full Turn costs change the value of animal search paths
title_fullStr Turn costs change the value of animal search paths
title_full_unstemmed Turn costs change the value of animal search paths
title_sort Turn costs change the value of animal search paths
dc.creator.none.fl_str_mv Wilson, R. P.
Griffiths, I. W.
Legg, P. A.
Friswell, M. I.
Bidder, O. R.
Halsey, L. G.
Lambertucci, Sergio Agustin
Shepard, E. L. C.
author Wilson, R. P.
author_facet Wilson, R. P.
Griffiths, I. W.
Legg, P. A.
Friswell, M. I.
Bidder, O. R.
Halsey, L. G.
Lambertucci, Sergio Agustin
Shepard, E. L. C.
author_role author
author2 Griffiths, I. W.
Legg, P. A.
Friswell, M. I.
Bidder, O. R.
Halsey, L. G.
Lambertucci, Sergio Agustin
Shepard, E. L. C.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Brownian Motion
Correlated Random Walk
Movement Costs
Lévy Walk
topic Brownian Motion
Correlated Random Walk
Movement Costs
Lévy Walk
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The tortuosity of the track taken by an animal searching for food profoundly affects search efficiency, which should be optimised to maximise net energy gain. Models examining this generally describe movement as a series of straight steps interspaced by turns, and implicitly assume no turn costs. We used both empirical- and modelling-based approaches to show that the energetic costs for turns in both terrestrial and aerial locomotion are substantial, which calls into question the value of conventional movement models such as correlated random walk or Levy walk for assessing optimum path types. We show how, because straight-line travel is energetically most efficient, search strategies should favour constrained turn angles, with uninformed foragers continuing in straight lines unless the potential benefits of turning offset the cost.
Fil: Wilson, R. P.. Swansea University; Reino Unido
Fil: Griffiths, I. W.. Swansea University; Reino Unido
Fil: Legg, P. A.. Swansea University; Reino Unido
Fil: Friswell, M. I.. Swansea University; Reino Unido
Fil: Bidder, O. R.. Swansea University; Reino Unido
Fil: Halsey, L. G.. University of Roehampton. School of Life Sciences; Reino Unido
Fil: Lambertucci, Sergio Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación en Biodiversidad y Medioambiente; Argentina
Fil: Shepard, E. L. C.. Swansea University; Reino Unido
description The tortuosity of the track taken by an animal searching for food profoundly affects search efficiency, which should be optimised to maximise net energy gain. Models examining this generally describe movement as a series of straight steps interspaced by turns, and implicitly assume no turn costs. We used both empirical- and modelling-based approaches to show that the energetic costs for turns in both terrestrial and aerial locomotion are substantial, which calls into question the value of conventional movement models such as correlated random walk or Levy walk for assessing optimum path types. We show how, because straight-line travel is energetically most efficient, search strategies should favour constrained turn angles, with uninformed foragers continuing in straight lines unless the potential benefits of turning offset the cost.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/6704
Wilson, R. P.; Griffiths, I. W.; Legg, P. A.; Friswell, M. I.; Bidder, O. R.; et al.; Turn costs change the value of animal search paths; Wiley; Ecology Letters; 16; 9; 8-2013; 1145-1150
1461-023X
url http://hdl.handle.net/11336/6704
identifier_str_mv Wilson, R. P.; Griffiths, I. W.; Legg, P. A.; Friswell, M. I.; Bidder, O. R.; et al.; Turn costs change the value of animal search paths; Wiley; Ecology Letters; 16; 9; 8-2013; 1145-1150
1461-023X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1111/ele.12149/abstract
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1111/ele.12149
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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