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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/6704
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:46:56Zoai: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:34982025-09-29 09:46:57.223CONICET 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 |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |